2 * Window messaging support
4 * Copyright 2001 Alexandre Julliard
5 * Copyright 2008 Maarten Lankhorst
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 #include "wine/port.h"
29 #define WIN32_NO_STATUS
40 #include "wine/unicode.h"
41 #include "wine/server.h"
42 #include "user_private.h"
45 #include "wine/debug.h"
47 WINE_DEFAULT_DEBUG_CHANNEL(msg);
48 WINE_DECLARE_DEBUG_CHANNEL(relay);
49 WINE_DECLARE_DEBUG_CHANNEL(key);
51 #define WM_NCMOUSEFIRST WM_NCMOUSEMOVE
52 #define WM_NCMOUSELAST (WM_NCMOUSEFIRST+(WM_MOUSELAST-WM_MOUSEFIRST))
54 #define MAX_PACK_COUNT 4
56 #define SYS_TIMER_RATE 55 /* min. timer rate in ms (actually 54.925)*/
58 /* description of the data fields that need to be packed along with a sent message */
62 const void *data[MAX_PACK_COUNT];
63 size_t size[MAX_PACK_COUNT];
66 /* info about the message currently being received by the current thread */
67 struct received_message_info
69 enum message_type type;
71 UINT flags; /* InSendMessageEx return flags */
74 /* structure to group all parameters for sent messages of the various kinds */
75 struct send_message_info
77 enum message_type type;
83 UINT flags; /* flags for SendMessageTimeout */
84 UINT timeout; /* timeout for SendMessageTimeout */
85 SENDASYNCPROC callback; /* callback function for SendMessageCallback */
86 ULONG_PTR data; /* callback data */
87 enum wm_char_mapping wm_char;
91 /* Message class descriptor */
92 static const WCHAR messageW[] = {'M','e','s','s','a','g','e',0};
93 static LRESULT WINAPI message_winproc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam );
94 const struct builtin_class_descr MESSAGE_builtin_class =
98 NULL, /* procA (winproc is Unicode only) */
99 message_winproc, /* procW */
101 IDC_ARROW, /* cursor */
107 /* flag for messages that contain pointers */
108 /* 32 messages per entry, messages 0..31 map to bits 0..31 */
110 #define SET(msg) (1 << ((msg) & 31))
112 static const unsigned int message_pointer_flags[] =
115 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) |
116 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
118 SET(WM_GETMINMAXINFO) | SET(WM_DRAWITEM) | SET(WM_MEASUREITEM) | SET(WM_DELETEITEM) |
121 SET(WM_WINDOWPOSCHANGING) | SET(WM_WINDOWPOSCHANGED) | SET(WM_COPYDATA) |
122 SET(WM_NOTIFY) | SET(WM_HELP),
124 SET(WM_STYLECHANGING) | SET(WM_STYLECHANGED),
126 SET(WM_NCCREATE) | SET(WM_NCCALCSIZE) | SET(WM_GETDLGCODE),
128 SET(EM_GETSEL) | SET(EM_GETRECT) | SET(EM_SETRECT) | SET(EM_SETRECTNP),
130 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETTABSTOPS),
132 SET(SBM_GETRANGE) | SET(SBM_SETSCROLLINFO) | SET(SBM_GETSCROLLINFO) | SET(SBM_GETSCROLLBARINFO),
138 SET(CB_GETEDITSEL) | SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) |
139 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) |
140 SET(CB_GETDROPPEDCONTROLRECT) | SET(CB_FINDSTRINGEXACT),
144 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_SELECTSTRING) |
145 SET(LB_DIR) | SET(LB_FINDSTRING) |
146 SET(LB_GETSELITEMS) | SET(LB_SETTABSTOPS) | SET(LB_ADDFILE) | SET(LB_GETITEMRECT),
148 SET(LB_FINDSTRINGEXACT),
154 SET(WM_NEXTMENU) | SET(WM_SIZING) | SET(WM_MOVING) | SET(WM_DEVICECHANGE),
156 SET(WM_MDICREATE) | SET(WM_MDIGETACTIVE) | SET(WM_DROPOBJECT) |
157 SET(WM_QUERYDROPOBJECT) | SET(WM_DRAGLOOP) | SET(WM_DRAGSELECT) | SET(WM_DRAGMOVE),
171 SET(WM_ASKCBFORMATNAME)
174 /* flags for messages that contain Unicode strings */
175 static const unsigned int message_unicode_flags[] =
178 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) | SET(WM_GETTEXTLENGTH) |
179 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
191 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETPASSWORDCHAR),
195 SET(WM_CHAR) | SET(WM_DEADCHAR) | SET(WM_SYSCHAR) | SET(WM_SYSDEADCHAR),
199 SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) | SET(CB_GETLBTEXTLEN) |
200 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) | SET(CB_FINDSTRINGEXACT),
204 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_GETTEXTLEN) |
205 SET(LB_SELECTSTRING) | SET(LB_DIR) | SET(LB_FINDSTRING) | SET(LB_ADDFILE),
207 SET(LB_FINDSTRINGEXACT),
229 SET(WM_PAINTCLIPBOARD) | SET(WM_SIZECLIPBOARD) | SET(WM_ASKCBFORMATNAME)
232 /* check whether a given message type includes pointers */
233 static inline int is_pointer_message( UINT message )
235 if (message >= 8*sizeof(message_pointer_flags)) return FALSE;
236 return (message_pointer_flags[message / 32] & SET(message)) != 0;
239 /* check whether a given message type contains Unicode (or ASCII) chars */
240 static inline int is_unicode_message( UINT message )
242 if (message >= 8*sizeof(message_unicode_flags)) return FALSE;
243 return (message_unicode_flags[message / 32] & SET(message)) != 0;
248 /* add a data field to a packed message */
249 static inline void push_data( struct packed_message *data, const void *ptr, size_t size )
251 data->data[data->count] = ptr;
252 data->size[data->count] = size;
256 /* add a string to a packed message */
257 static inline void push_string( struct packed_message *data, LPCWSTR str )
259 push_data( data, str, (strlenW(str) + 1) * sizeof(WCHAR) );
262 /* make sure that the buffer contains a valid null-terminated Unicode string */
263 static inline BOOL check_string( LPCWSTR str, size_t size )
265 for (size /= sizeof(WCHAR); size; size--, str++)
266 if (!*str) return TRUE;
270 /* make sure that there is space for 'size' bytes in buffer, growing it if needed */
271 static inline void *get_buffer_space( void **buffer, size_t size )
277 if (!(ret = HeapReAlloc( GetProcessHeap(), 0, *buffer, size )))
278 HeapFree( GetProcessHeap(), 0, *buffer );
280 else ret = HeapAlloc( GetProcessHeap(), 0, size );
286 /* check whether a combobox expects strings or ids in CB_ADDSTRING/CB_INSERTSTRING */
287 static inline BOOL combobox_has_strings( HWND hwnd )
289 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
290 return (!(style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) || (style & CBS_HASSTRINGS));
293 /* check whether a listbox expects strings or ids in LB_ADDSTRING/LB_INSERTSTRING */
294 static inline BOOL listbox_has_strings( HWND hwnd )
296 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
297 return (!(style & (LBS_OWNERDRAWFIXED | LBS_OWNERDRAWVARIABLE)) || (style & LBS_HASSTRINGS));
300 /* check whether message is in the range of keyboard messages */
301 static inline BOOL is_keyboard_message( UINT message )
303 return (message >= WM_KEYFIRST && message <= WM_KEYLAST);
306 /* check whether message is in the range of mouse messages */
307 static inline BOOL is_mouse_message( UINT message )
309 return ((message >= WM_NCMOUSEFIRST && message <= WM_NCMOUSELAST) ||
310 (message >= WM_MOUSEFIRST && message <= WM_MOUSELAST));
313 /* check whether message matches the specified hwnd filter */
314 static inline BOOL check_hwnd_filter( const MSG *msg, HWND hwnd_filter )
316 if (!hwnd_filter || hwnd_filter == GetDesktopWindow()) return TRUE;
317 return (msg->hwnd == hwnd_filter || IsChild( hwnd_filter, msg->hwnd ));
320 /* check for pending WM_CHAR message with DBCS trailing byte */
321 static inline BOOL get_pending_wmchar( MSG *msg, UINT first, UINT last, BOOL remove )
323 struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
325 if (!data || !data->get_msg.message) return FALSE;
326 if ((first || last) && (first > WM_CHAR || last < WM_CHAR)) return FALSE;
327 if (!msg) return FALSE;
328 *msg = data->get_msg;
329 if (remove) data->get_msg.message = 0;
334 /***********************************************************************
337 * Window procedure for "Message" windows (HWND_MESSAGE parent).
339 static LRESULT WINAPI message_winproc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam )
341 if (message == WM_NCCREATE) return TRUE;
342 return 0; /* all other messages are ignored */
346 /***********************************************************************
347 * broadcast_message_callback
349 * Helper callback for broadcasting messages.
351 static BOOL CALLBACK broadcast_message_callback( HWND hwnd, LPARAM lparam )
353 struct send_message_info *info = (struct send_message_info *)lparam;
354 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & (WS_POPUP|WS_CAPTION))) return TRUE;
358 SendMessageTimeoutW( hwnd, info->msg, info->wparam, info->lparam,
359 info->flags, info->timeout, NULL );
362 SendMessageTimeoutA( hwnd, info->msg, info->wparam, info->lparam,
363 info->flags, info->timeout, NULL );
366 SendNotifyMessageW( hwnd, info->msg, info->wparam, info->lparam );
369 SendMessageCallbackW( hwnd, info->msg, info->wparam, info->lparam,
370 info->callback, info->data );
373 PostMessageW( hwnd, info->msg, info->wparam, info->lparam );
376 ERR( "bad type %d\n", info->type );
383 /***********************************************************************
386 * Convert the wparam of an ASCII message to Unicode.
388 BOOL map_wparam_AtoW( UINT message, WPARAM *wparam, enum wm_char_mapping mapping )
397 /* WM_CHAR is magic: a DBCS char can be sent/posted as two consecutive WM_CHAR
398 * messages, in which case the first char is stored, and the conversion
399 * to Unicode only takes place once the second char is sent/posted.
401 if (mapping != WMCHAR_MAP_NOMAPPING)
403 struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
404 BYTE low = LOBYTE(*wparam);
409 ch[1] = HIBYTE(*wparam);
410 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
411 TRACE( "map %02x,%02x -> %04x mapping %u\n", (BYTE)ch[0], (BYTE)ch[1], wch[0], mapping );
412 if (data) data->lead_byte[mapping] = 0;
414 else if (data && data->lead_byte[mapping])
416 ch[0] = data->lead_byte[mapping];
418 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
419 TRACE( "map stored %02x,%02x -> %04x mapping %u\n", (BYTE)ch[0], (BYTE)ch[1], wch[0], mapping );
420 data->lead_byte[mapping] = 0;
422 else if (!IsDBCSLeadByte( low ))
425 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 1 );
426 TRACE( "map %02x -> %04x\n", (BYTE)ch[0], wch[0] );
427 if (data) data->lead_byte[mapping] = 0;
429 else /* store it and wait for trail byte */
433 if (!(data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) )))
435 get_user_thread_info()->wmchar_data = data;
437 TRACE( "storing lead byte %02x mapping %u\n", low, mapping );
438 data->lead_byte[mapping] = low;
441 *wparam = MAKEWPARAM(wch[0], wch[1]);
444 /* else fall through */
446 case EM_SETPASSWORDCHAR:
451 ch[0] = LOBYTE(*wparam);
452 ch[1] = HIBYTE(*wparam);
453 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
454 *wparam = MAKEWPARAM(wch[0], wch[1]);
457 ch[0] = HIBYTE(*wparam);
458 ch[1] = LOBYTE(*wparam);
459 if (ch[0]) RtlMultiByteToUnicodeN( wch, sizeof(wch[0]), NULL, ch, 2 );
460 else RtlMultiByteToUnicodeN( wch, sizeof(wch[0]), NULL, ch + 1, 1 );
461 *wparam = MAKEWPARAM(wch[0], HIWORD(*wparam));
468 /***********************************************************************
471 * Convert the wparam of a Unicode message to ASCII.
473 static void map_wparam_WtoA( MSG *msg, BOOL remove )
482 if (!HIWORD(msg->wParam))
484 wch[0] = LOWORD(msg->wParam);
486 RtlUnicodeToMultiByteN( (LPSTR)ch, 2, &len, wch, sizeof(wch[0]) );
487 if (len == 2) /* DBCS char */
489 struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
492 if (!(data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) ))) return;
493 get_user_thread_info()->wmchar_data = data;
497 data->get_msg = *msg;
498 data->get_msg.wParam = ch[1];
504 /* else fall through */
506 case EM_SETPASSWORDCHAR:
511 wch[0] = LOWORD(msg->wParam);
512 wch[1] = HIWORD(msg->wParam);
514 RtlUnicodeToMultiByteN( (LPSTR)ch, 2, NULL, wch, sizeof(wch) );
515 msg->wParam = MAKEWPARAM( ch[0] | (ch[1] << 8), 0 );
518 wch[0] = LOWORD(msg->wParam);
520 RtlUnicodeToMultiByteN( (LPSTR)ch, 2, &len, wch, sizeof(wch[0]) );
522 msg->wParam = MAKEWPARAM( (ch[0] << 8) | ch[1], HIWORD(msg->wParam) );
524 msg->wParam = MAKEWPARAM( ch[0], HIWORD(msg->wParam) );
530 /***********************************************************************
533 * Pack a message for sending to another process.
534 * Return the size of the data we expect in the message reply.
535 * Set data->count to -1 if there is an error.
537 static size_t pack_message( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
538 struct packed_message *data )
546 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
547 push_data( data, cs, sizeof(*cs) );
548 if (HIWORD(cs->lpszName)) push_string( data, cs->lpszName );
549 if (HIWORD(cs->lpszClass)) push_string( data, cs->lpszClass );
553 case WM_ASKCBFORMATNAME:
554 return wparam * sizeof(WCHAR);
555 case WM_WININICHANGE:
556 if (lparam) push_string(data, (LPWSTR)lparam );
559 case WM_DEVMODECHANGE:
564 push_string( data, (LPWSTR)lparam );
566 case WM_GETMINMAXINFO:
567 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
568 return sizeof(MINMAXINFO);
570 push_data( data, (DRAWITEMSTRUCT *)lparam, sizeof(DRAWITEMSTRUCT) );
573 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
574 return sizeof(MEASUREITEMSTRUCT);
576 push_data( data, (DELETEITEMSTRUCT *)lparam, sizeof(DELETEITEMSTRUCT) );
579 push_data( data, (COMPAREITEMSTRUCT *)lparam, sizeof(COMPAREITEMSTRUCT) );
581 case WM_WINDOWPOSCHANGING:
582 case WM_WINDOWPOSCHANGED:
583 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
584 return sizeof(WINDOWPOS);
587 COPYDATASTRUCT *cp = (COPYDATASTRUCT *)lparam;
588 push_data( data, cp, sizeof(*cp) );
589 if (cp->lpData) push_data( data, cp->lpData, cp->cbData );
593 /* WM_NOTIFY cannot be sent across processes (MSDN) */
597 push_data( data, (HELPINFO *)lparam, sizeof(HELPINFO) );
599 case WM_STYLECHANGING:
600 case WM_STYLECHANGED:
601 push_data( data, (STYLESTRUCT *)lparam, sizeof(STYLESTRUCT) );
606 push_data( data, (RECT *)lparam, sizeof(RECT) );
611 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
612 push_data( data, nc, sizeof(*nc) );
613 push_data( data, nc->lppos, sizeof(*nc->lppos) );
614 return sizeof(*nc) + sizeof(*nc->lppos);
617 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
619 case SBM_SETSCROLLINFO:
620 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
622 case SBM_GETSCROLLINFO:
623 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
624 return sizeof(SCROLLINFO);
625 case SBM_GETSCROLLBARINFO:
627 const SCROLLBARINFO *info = (const SCROLLBARINFO *)lparam;
628 size_t size = min( info->cbSize, sizeof(SCROLLBARINFO) );
629 push_data( data, info, size );
637 if (wparam) size += sizeof(DWORD);
638 if (lparam) size += sizeof(DWORD);
643 case CB_GETDROPPEDCONTROLRECT:
647 push_data( data, (RECT *)lparam, sizeof(RECT) );
651 WORD *pw = (WORD *)lparam;
652 push_data( data, pw, sizeof(*pw) );
653 return *pw * sizeof(WCHAR);
657 if (wparam) push_data( data, (UINT *)lparam, sizeof(UINT) * wparam );
660 case CB_INSERTSTRING:
662 case CB_FINDSTRINGEXACT:
663 case CB_SELECTSTRING:
664 if (combobox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
667 if (!combobox_has_strings( hwnd )) return sizeof(ULONG_PTR);
668 return (SendMessageW( hwnd, CB_GETLBTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
670 case LB_INSERTSTRING:
672 case LB_FINDSTRINGEXACT:
673 case LB_SELECTSTRING:
674 if (listbox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
677 if (!listbox_has_strings( hwnd )) return sizeof(ULONG_PTR);
678 return (SendMessageW( hwnd, LB_GETTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
680 return wparam * sizeof(UINT);
682 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
683 return sizeof(MDINEXTMENU);
686 push_data( data, (RECT *)lparam, sizeof(RECT) );
690 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
691 push_data( data, cs, sizeof(*cs) );
692 if (HIWORD(cs->szTitle)) push_string( data, cs->szTitle );
693 if (HIWORD(cs->szClass)) push_string( data, cs->szClass );
696 case WM_MDIGETACTIVE:
697 if (lparam) return sizeof(BOOL);
699 case WM_DEVICECHANGE:
701 DEV_BROADCAST_HDR *header = (DEV_BROADCAST_HDR *)lparam;
702 push_data( data, header, header->dbch_size );
705 case WM_WINE_SETWINDOWPOS:
706 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
708 case WM_WINE_KEYBOARD_LL_HOOK:
710 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
711 push_data( data, h_extra, sizeof(*h_extra) );
712 push_data( data, (LPVOID)h_extra->lparam, sizeof(KBDLLHOOKSTRUCT) );
715 case WM_WINE_MOUSE_LL_HOOK:
717 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
718 push_data( data, h_extra, sizeof(*h_extra) );
719 push_data( data, (LPVOID)h_extra->lparam, sizeof(MSLLHOOKSTRUCT) );
723 if (wparam <= 1) return 0;
724 FIXME( "WM_NCPAINT hdc packing not supported yet\n" );
728 if (!wparam) return 0;
731 /* these contain an HFONT */
734 /* these contain an HDC */
736 case WM_ICONERASEBKGND:
737 case WM_CTLCOLORMSGBOX:
738 case WM_CTLCOLOREDIT:
739 case WM_CTLCOLORLISTBOX:
742 case WM_CTLCOLORSCROLLBAR:
743 case WM_CTLCOLORSTATIC:
746 /* these contain an HGLOBAL */
747 case WM_PAINTCLIPBOARD:
748 case WM_SIZECLIPBOARD:
749 /* these contain HICON */
752 case WM_QUERYDRAGICON:
753 case WM_QUERYPARKICON:
754 /* these contain pointers */
756 case WM_QUERYDROPOBJECT:
760 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
768 /***********************************************************************
771 * Unpack a message received from another process.
773 static BOOL unpack_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
774 void **buffer, size_t size )
783 CREATESTRUCTW *cs = *buffer;
784 WCHAR *str = (WCHAR *)(cs + 1);
785 if (size < sizeof(*cs)) return FALSE;
787 if (HIWORD(cs->lpszName))
789 if (!check_string( str, size )) return FALSE;
791 size -= (strlenW(str) + 1) * sizeof(WCHAR);
792 str += strlenW(str) + 1;
794 if (HIWORD(cs->lpszClass))
796 if (!check_string( str, size )) return FALSE;
802 case WM_ASKCBFORMATNAME:
803 if (!get_buffer_space( buffer, (*wparam * sizeof(WCHAR)) )) return FALSE;
805 case WM_WININICHANGE:
806 if (!*lparam) return TRUE;
809 case WM_DEVMODECHANGE:
814 if (!check_string( *buffer, size )) return FALSE;
816 case WM_GETMINMAXINFO:
817 minsize = sizeof(MINMAXINFO);
820 minsize = sizeof(DRAWITEMSTRUCT);
823 minsize = sizeof(MEASUREITEMSTRUCT);
826 minsize = sizeof(DELETEITEMSTRUCT);
829 minsize = sizeof(COMPAREITEMSTRUCT);
831 case WM_WINDOWPOSCHANGING:
832 case WM_WINDOWPOSCHANGED:
833 case WM_WINE_SETWINDOWPOS:
834 minsize = sizeof(WINDOWPOS);
838 COPYDATASTRUCT *cp = *buffer;
839 if (size < sizeof(*cp)) return FALSE;
842 minsize = sizeof(*cp) + cp->cbData;
848 /* WM_NOTIFY cannot be sent across processes (MSDN) */
851 minsize = sizeof(HELPINFO);
853 case WM_STYLECHANGING:
854 case WM_STYLECHANGED:
855 minsize = sizeof(STYLESTRUCT);
858 if (!*wparam) minsize = sizeof(RECT);
861 NCCALCSIZE_PARAMS *nc = *buffer;
862 if (size < sizeof(*nc) + sizeof(*nc->lppos)) return FALSE;
863 nc->lppos = (WINDOWPOS *)(nc + 1);
867 if (!*lparam) return TRUE;
868 minsize = sizeof(MSG);
870 case SBM_SETSCROLLINFO:
871 minsize = sizeof(SCROLLINFO);
873 case SBM_GETSCROLLINFO:
874 if (!get_buffer_space( buffer, sizeof(SCROLLINFO ))) return FALSE;
876 case SBM_GETSCROLLBARINFO:
877 if (!get_buffer_space( buffer, sizeof(SCROLLBARINFO ))) return FALSE;
882 if (*wparam || *lparam)
884 if (!get_buffer_space( buffer, 2*sizeof(DWORD) )) return FALSE;
885 if (*wparam) *wparam = (WPARAM)*buffer;
886 if (*lparam) *lparam = (LPARAM)((DWORD *)*buffer + 1);
891 case CB_GETDROPPEDCONTROLRECT:
892 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
896 minsize = sizeof(RECT);
901 if (size < sizeof(WORD)) return FALSE;
902 len = *(WORD *)*buffer;
903 if (!get_buffer_space( buffer, (len + 1) * sizeof(WCHAR) )) return FALSE;
904 *lparam = (LPARAM)*buffer + sizeof(WORD); /* don't erase WORD at start of buffer */
909 if (!*wparam) return TRUE;
910 minsize = *wparam * sizeof(UINT);
913 case CB_INSERTSTRING:
915 case CB_FINDSTRINGEXACT:
916 case CB_SELECTSTRING:
918 case LB_INSERTSTRING:
920 case LB_FINDSTRINGEXACT:
921 case LB_SELECTSTRING:
922 if (!*buffer) return TRUE;
923 if (!check_string( *buffer, size )) return FALSE;
927 size = sizeof(ULONG_PTR);
928 if (combobox_has_strings( hwnd ))
929 size = (SendMessageW( hwnd, CB_GETLBTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
930 if (!get_buffer_space( buffer, size )) return FALSE;
935 size = sizeof(ULONG_PTR);
936 if (listbox_has_strings( hwnd ))
937 size = (SendMessageW( hwnd, LB_GETTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
938 if (!get_buffer_space( buffer, size )) return FALSE;
942 if (!get_buffer_space( buffer, *wparam * sizeof(UINT) )) return FALSE;
945 minsize = sizeof(MDINEXTMENU);
946 if (!get_buffer_space( buffer, sizeof(MDINEXTMENU) )) return FALSE;
950 minsize = sizeof(RECT);
951 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
955 MDICREATESTRUCTW *cs = *buffer;
956 WCHAR *str = (WCHAR *)(cs + 1);
957 if (size < sizeof(*cs)) return FALSE;
959 if (HIWORD(cs->szTitle))
961 if (!check_string( str, size )) return FALSE;
963 size -= (strlenW(str) + 1) * sizeof(WCHAR);
964 str += strlenW(str) + 1;
966 if (HIWORD(cs->szClass))
968 if (!check_string( str, size )) return FALSE;
973 case WM_MDIGETACTIVE:
974 if (!*lparam) return TRUE;
975 if (!get_buffer_space( buffer, sizeof(BOOL) )) return FALSE;
977 case WM_DEVICECHANGE:
978 minsize = sizeof(DEV_BROADCAST_HDR);
980 case WM_WINE_KEYBOARD_LL_HOOK:
981 case WM_WINE_MOUSE_LL_HOOK:
983 struct hook_extra_info *h_extra = *buffer;
985 minsize = sizeof(struct hook_extra_info) +
986 (message == WM_WINE_KEYBOARD_LL_HOOK ? sizeof(KBDLLHOOKSTRUCT)
987 : sizeof(MSLLHOOKSTRUCT));
988 if (size < minsize) return FALSE;
989 h_extra->lparam = (LPARAM)(h_extra + 1);
993 if (*wparam <= 1) return TRUE;
994 FIXME( "WM_NCPAINT hdc unpacking not supported\n" );
997 if (!*wparam) return TRUE;
1000 /* these contain an HFONT */
1003 /* these contain an HDC */
1005 case WM_ICONERASEBKGND:
1006 case WM_CTLCOLORMSGBOX:
1007 case WM_CTLCOLOREDIT:
1008 case WM_CTLCOLORLISTBOX:
1009 case WM_CTLCOLORBTN:
1010 case WM_CTLCOLORDLG:
1011 case WM_CTLCOLORSCROLLBAR:
1012 case WM_CTLCOLORSTATIC:
1014 case WM_PRINTCLIENT:
1015 /* these contain an HGLOBAL */
1016 case WM_PAINTCLIPBOARD:
1017 case WM_SIZECLIPBOARD:
1018 /* these contain HICON */
1021 case WM_QUERYDRAGICON:
1022 case WM_QUERYPARKICON:
1023 /* these contain pointers */
1025 case WM_QUERYDROPOBJECT:
1029 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
1033 return TRUE; /* message doesn't need any unpacking */
1036 /* default exit for most messages: check minsize and store buffer in lparam */
1037 if (size < minsize) return FALSE;
1038 *lparam = (LPARAM)*buffer;
1043 /***********************************************************************
1046 * Pack a reply to a message for sending to another process.
1048 static void pack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
1049 LRESULT res, struct packed_message *data )
1056 push_data( data, (CREATESTRUCTW *)lparam, sizeof(CREATESTRUCTW) );
1061 push_data( data, (WCHAR *)lparam, (res + 1) * sizeof(WCHAR) );
1063 case WM_GETMINMAXINFO:
1064 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
1066 case WM_MEASUREITEM:
1067 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
1069 case WM_WINDOWPOSCHANGING:
1070 case WM_WINDOWPOSCHANGED:
1071 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
1074 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
1076 case SBM_GETSCROLLINFO:
1077 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
1080 case LB_GETITEMRECT:
1081 case CB_GETDROPPEDCONTROLRECT:
1084 push_data( data, (RECT *)lparam, sizeof(RECT) );
1088 WORD *ptr = (WORD *)lparam;
1089 push_data( data, ptr, ptr[-1] * sizeof(WCHAR) );
1092 case LB_GETSELITEMS:
1093 push_data( data, (UINT *)lparam, wparam * sizeof(UINT) );
1095 case WM_MDIGETACTIVE:
1096 if (lparam) push_data( data, (BOOL *)lparam, sizeof(BOOL) );
1100 push_data( data, (RECT *)lparam, sizeof(RECT) );
1103 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
1104 push_data( data, nc, sizeof(*nc) );
1105 push_data( data, nc->lppos, sizeof(*nc->lppos) );
1111 if (wparam) push_data( data, (DWORD *)wparam, sizeof(DWORD) );
1112 if (lparam) push_data( data, (DWORD *)lparam, sizeof(DWORD) );
1115 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
1118 push_data( data, (MDICREATESTRUCTW *)lparam, sizeof(MDICREATESTRUCTW) );
1120 case WM_ASKCBFORMATNAME:
1121 push_data( data, (WCHAR *)lparam, (strlenW((WCHAR *)lparam) + 1) * sizeof(WCHAR) );
1127 /***********************************************************************
1130 * Unpack a message reply received from another process.
1132 static void unpack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
1133 void *buffer, size_t size )
1140 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
1141 LPCWSTR name = cs->lpszName, class = cs->lpszClass;
1142 memcpy( cs, buffer, min( sizeof(*cs), size ));
1143 cs->lpszName = name; /* restore the original pointers */
1144 cs->lpszClass = class;
1148 case WM_ASKCBFORMATNAME:
1149 memcpy( (WCHAR *)lparam, buffer, min( wparam*sizeof(WCHAR), size ));
1151 case WM_GETMINMAXINFO:
1152 memcpy( (MINMAXINFO *)lparam, buffer, min( sizeof(MINMAXINFO), size ));
1154 case WM_MEASUREITEM:
1155 memcpy( (MEASUREITEMSTRUCT *)lparam, buffer, min( sizeof(MEASUREITEMSTRUCT), size ));
1157 case WM_WINDOWPOSCHANGING:
1158 case WM_WINDOWPOSCHANGED:
1159 memcpy( (WINDOWPOS *)lparam, buffer, min( sizeof(WINDOWPOS), size ));
1162 if (lparam) memcpy( (MSG *)lparam, buffer, min( sizeof(MSG), size ));
1164 case SBM_GETSCROLLINFO:
1165 memcpy( (SCROLLINFO *)lparam, buffer, min( sizeof(SCROLLINFO), size ));
1167 case SBM_GETSCROLLBARINFO:
1168 memcpy( (SCROLLBARINFO *)lparam, buffer, min( sizeof(SCROLLBARINFO), size ));
1171 case CB_GETDROPPEDCONTROLRECT:
1172 case LB_GETITEMRECT:
1175 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1178 size = min( size, (size_t)*(WORD *)lparam );
1179 memcpy( (WCHAR *)lparam, buffer, size );
1181 case LB_GETSELITEMS:
1182 memcpy( (UINT *)lparam, buffer, min( wparam*sizeof(UINT), size ));
1186 memcpy( (WCHAR *)lparam, buffer, size );
1189 memcpy( (MDINEXTMENU *)lparam, buffer, min( sizeof(MDINEXTMENU), size ));
1191 case WM_MDIGETACTIVE:
1192 if (lparam) memcpy( (BOOL *)lparam, buffer, min( sizeof(BOOL), size ));
1196 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1199 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
1200 WINDOWPOS *wp = nc->lppos;
1201 memcpy( nc, buffer, min( sizeof(*nc), size ));
1202 if (size > sizeof(*nc))
1204 size -= sizeof(*nc);
1205 memcpy( wp, (NCCALCSIZE_PARAMS*)buffer + 1, min( sizeof(*wp), size ));
1207 nc->lppos = wp; /* restore the original pointer */
1215 memcpy( (DWORD *)wparam, buffer, min( sizeof(DWORD), size ));
1216 if (size <= sizeof(DWORD)) break;
1217 size -= sizeof(DWORD);
1218 buffer = (DWORD *)buffer + 1;
1220 if (lparam) memcpy( (DWORD *)lparam, buffer, min( sizeof(DWORD), size ));
1224 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
1225 LPCWSTR title = cs->szTitle, class = cs->szClass;
1226 memcpy( cs, buffer, min( sizeof(*cs), size ));
1227 cs->szTitle = title; /* restore the original pointers */
1228 cs->szClass = class;
1232 ERR( "should not happen: unexpected message %x\n", message );
1238 /***********************************************************************
1241 * Send a reply to a sent message.
1243 static void reply_message( struct received_message_info *info, LRESULT result, BOOL remove )
1245 struct packed_message data;
1246 int i, replied = info->flags & ISMEX_REPLIED;
1248 if (info->flags & ISMEX_NOTIFY) return; /* notify messages don't get replies */
1249 if (!remove && replied) return; /* replied already */
1252 info->flags |= ISMEX_REPLIED;
1254 if (info->type == MSG_OTHER_PROCESS && !replied)
1256 pack_reply( info->msg.hwnd, info->msg.message, info->msg.wParam,
1257 info->msg.lParam, result, &data );
1260 SERVER_START_REQ( reply_message )
1262 req->result = result;
1263 req->remove = remove;
1264 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
1265 wine_server_call( req );
1271 /***********************************************************************
1272 * handle_internal_message
1274 * Handle an internal Wine message instead of calling the window proc.
1276 static LRESULT handle_internal_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
1280 case WM_WINE_DESTROYWINDOW:
1281 return WIN_DestroyWindow( hwnd );
1282 case WM_WINE_SETWINDOWPOS:
1283 if (is_desktop_window( hwnd )) return 0;
1284 return USER_SetWindowPos( (WINDOWPOS *)lparam );
1285 case WM_WINE_SHOWWINDOW:
1286 if (is_desktop_window( hwnd )) return 0;
1287 return ShowWindow( hwnd, wparam );
1288 case WM_WINE_SETPARENT:
1289 if (is_desktop_window( hwnd )) return 0;
1290 return (LRESULT)SetParent( hwnd, (HWND)wparam );
1291 case WM_WINE_SETWINDOWLONG:
1292 return WIN_SetWindowLong( hwnd, (short)LOWORD(wparam), HIWORD(wparam), lparam, TRUE );
1293 case WM_WINE_ENABLEWINDOW:
1294 if (is_desktop_window( hwnd )) return 0;
1295 return EnableWindow( hwnd, wparam );
1296 case WM_WINE_SETACTIVEWINDOW:
1297 if (is_desktop_window( hwnd )) return 0;
1298 return (LRESULT)SetActiveWindow( (HWND)wparam );
1299 case WM_WINE_KEYBOARD_LL_HOOK:
1300 case WM_WINE_MOUSE_LL_HOOK:
1302 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
1304 return call_current_hook( h_extra->handle, HC_ACTION, wparam, h_extra->lparam );
1307 if (msg >= WM_WINE_FIRST_DRIVER_MSG && msg <= WM_WINE_LAST_DRIVER_MSG)
1308 return USER_Driver->pWindowMessage( hwnd, msg, wparam, lparam );
1309 FIXME( "unknown internal message %x\n", msg );
1314 /* since the WM_DDE_ACK response to a WM_DDE_EXECUTE message should contain the handle
1315 * to the memory handle, we keep track (in the server side) of all pairs of handle
1316 * used (the client passes its value and the content of the memory handle), and
1317 * the server stored both values (the client, and the local one, created after the
1318 * content). When a ACK message is generated, the list of pair is searched for a
1319 * matching pair, so that the client memory handle can be returned.
1322 HGLOBAL client_hMem;
1323 HGLOBAL server_hMem;
1326 static struct DDE_pair* dde_pairs;
1327 static int dde_num_alloc;
1328 static int dde_num_used;
1330 static CRITICAL_SECTION dde_crst;
1331 static CRITICAL_SECTION_DEBUG critsect_debug =
1334 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
1335 0, 0, { (DWORD_PTR)(__FILE__ ": dde_crst") }
1337 static CRITICAL_SECTION dde_crst = { &critsect_debug, -1, 0, 0, 0, 0 };
1339 static BOOL dde_add_pair(HGLOBAL chm, HGLOBAL shm)
1344 EnterCriticalSection(&dde_crst);
1346 /* now remember the pair of hMem on both sides */
1347 if (dde_num_used == dde_num_alloc)
1349 struct DDE_pair* tmp;
1351 tmp = HeapReAlloc( GetProcessHeap(), 0, dde_pairs,
1352 (dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
1354 tmp = HeapAlloc( GetProcessHeap(), 0,
1355 (dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
1359 LeaveCriticalSection(&dde_crst);
1363 /* zero out newly allocated part */
1364 memset(&dde_pairs[dde_num_alloc], 0, GROWBY * sizeof(struct DDE_pair));
1365 dde_num_alloc += GROWBY;
1368 for (i = 0; i < dde_num_alloc; i++)
1370 if (dde_pairs[i].server_hMem == 0)
1372 dde_pairs[i].client_hMem = chm;
1373 dde_pairs[i].server_hMem = shm;
1378 LeaveCriticalSection(&dde_crst);
1382 static HGLOBAL dde_get_pair(HGLOBAL shm)
1387 EnterCriticalSection(&dde_crst);
1388 for (i = 0; i < dde_num_alloc; i++)
1390 if (dde_pairs[i].server_hMem == shm)
1392 /* free this pair */
1393 dde_pairs[i].server_hMem = 0;
1395 ret = dde_pairs[i].client_hMem;
1399 LeaveCriticalSection(&dde_crst);
1403 /***********************************************************************
1406 * Post a DDE message
1408 static BOOL post_dde_message( struct packed_message *data, const struct send_message_info *info )
1412 UINT_PTR uiLo, uiHi;
1414 HGLOBAL hunlock = 0;
1418 if (!UnpackDDElParam( info->msg, info->lparam, &uiLo, &uiHi ))
1424 /* DDE messages which don't require packing are:
1433 /* uiHi should contain a hMem from WM_DDE_EXECUTE */
1434 HGLOBAL h = dde_get_pair( (HANDLE)uiHi );
1437 /* send back the value of h on the other side */
1438 push_data( data, &h, sizeof(HGLOBAL) );
1440 TRACE( "send dde-ack %lx %08lx => %p\n", uiLo, uiHi, h );
1445 /* uiHi should contain either an atom or 0 */
1446 TRACE( "send dde-ack %lx atom=%lx\n", uiLo, uiHi );
1447 lp = MAKELONG( uiLo, uiHi );
1456 size = GlobalSize( (HGLOBAL)uiLo ) ;
1457 if ((info->msg == WM_DDE_ADVISE && size < sizeof(DDEADVISE)) ||
1458 (info->msg == WM_DDE_DATA && size < FIELD_OFFSET(DDEDATA, Value)) ||
1459 (info->msg == WM_DDE_POKE && size < FIELD_OFFSET(DDEPOKE, Value))
1463 else if (info->msg != WM_DDE_DATA) return FALSE;
1468 if ((ptr = GlobalLock( (HGLOBAL)uiLo) ))
1470 DDEDATA *dde_data = ptr;
1471 TRACE("unused %d, fResponse %d, fRelease %d, fDeferUpd %d, fAckReq %d, cfFormat %d\n",
1472 dde_data->unused, dde_data->fResponse, dde_data->fRelease,
1473 dde_data->reserved, dde_data->fAckReq, dde_data->cfFormat);
1474 push_data( data, ptr, size );
1475 hunlock = (HGLOBAL)uiLo;
1478 TRACE( "send ddepack %u %lx\n", size, uiHi );
1480 case WM_DDE_EXECUTE:
1483 if ((ptr = GlobalLock( (HGLOBAL)info->lparam) ))
1485 push_data(data, ptr, GlobalSize( (HGLOBAL)info->lparam ));
1486 /* so that the other side can send it back on ACK */
1488 hunlock = (HGLOBAL)info->lparam;
1493 SERVER_START_REQ( send_message )
1495 req->id = info->dest_tid;
1496 req->type = info->type;
1498 req->win = wine_server_user_handle( info->hwnd );
1499 req->msg = info->msg;
1500 req->wparam = info->wparam;
1502 req->timeout = TIMEOUT_INFINITE;
1503 for (i = 0; i < data->count; i++)
1504 wine_server_add_data( req, data->data[i], data->size[i] );
1505 if ((res = wine_server_call( req )))
1507 if (res == STATUS_INVALID_PARAMETER)
1508 /* FIXME: find a STATUS_ value for this one */
1509 SetLastError( ERROR_INVALID_THREAD_ID );
1511 SetLastError( RtlNtStatusToDosError(res) );
1514 FreeDDElParam(info->msg, info->lparam);
1517 if (hunlock) GlobalUnlock(hunlock);
1522 /***********************************************************************
1523 * unpack_dde_message
1525 * Unpack a posted DDE message received from another process.
1527 static BOOL unpack_dde_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
1528 void **buffer, size_t size )
1530 UINT_PTR uiLo, uiHi;
1539 /* hMem is being passed */
1540 if (size != sizeof(HGLOBAL)) return FALSE;
1541 if (!buffer || !*buffer) return FALSE;
1543 memcpy( &hMem, *buffer, size );
1544 uiHi = (UINT_PTR)hMem;
1545 TRACE("recv dde-ack %lx mem=%lx[%lx]\n", uiLo, uiHi, GlobalSize( hMem ));
1549 uiLo = LOWORD( *lparam );
1550 uiHi = HIWORD( *lparam );
1551 TRACE("recv dde-ack %lx atom=%lx\n", uiLo, uiHi);
1553 *lparam = PackDDElParam( WM_DDE_ACK, uiLo, uiHi );
1558 if ((!buffer || !*buffer) && message != WM_DDE_DATA) return FALSE;
1562 if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size )))
1564 if ((ptr = GlobalLock( hMem )))
1566 memcpy( ptr, *buffer, size );
1567 GlobalUnlock( hMem );
1575 uiLo = (UINT_PTR)hMem;
1577 *lparam = PackDDElParam( message, uiLo, uiHi );
1579 case WM_DDE_EXECUTE:
1582 if (!buffer || !*buffer) return FALSE;
1583 if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size ))) return FALSE;
1584 if ((ptr = GlobalLock( hMem )))
1586 memcpy( ptr, *buffer, size );
1587 GlobalUnlock( hMem );
1588 TRACE( "exec: pairing c=%08lx s=%p\n", *lparam, hMem );
1589 if (!dde_add_pair( (HGLOBAL)*lparam, hMem ))
1600 } else return FALSE;
1601 *lparam = (LPARAM)hMem;
1607 /***********************************************************************
1610 * Call a window procedure and the corresponding hooks.
1612 static LRESULT call_window_proc( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
1613 BOOL unicode, BOOL same_thread, enum wm_char_mapping mapping )
1617 CWPRETSTRUCT cwpret;
1619 if (msg & 0x80000000)
1621 result = handle_internal_message( hwnd, msg, wparam, lparam );
1625 /* first the WH_CALLWNDPROC hook */
1626 hwnd = WIN_GetFullHandle( hwnd );
1627 cwp.lParam = lparam;
1628 cwp.wParam = wparam;
1631 HOOK_CallHooks( WH_CALLWNDPROC, HC_ACTION, same_thread, (LPARAM)&cwp, unicode );
1633 /* now call the window procedure */
1634 if (!WINPROC_call_window( hwnd, msg, wparam, lparam, &result, unicode, mapping )) goto done;
1636 /* and finally the WH_CALLWNDPROCRET hook */
1637 cwpret.lResult = result;
1638 cwpret.lParam = lparam;
1639 cwpret.wParam = wparam;
1640 cwpret.message = msg;
1642 HOOK_CallHooks( WH_CALLWNDPROCRET, HC_ACTION, same_thread, (LPARAM)&cwpret, unicode );
1648 /***********************************************************************
1649 * send_parent_notify
1651 * Send a WM_PARENTNOTIFY to all ancestors of the given window, unless
1652 * the window has the WS_EX_NOPARENTNOTIFY style.
1654 static void send_parent_notify( HWND hwnd, WORD event, WORD idChild, POINT pt )
1656 /* pt has to be in the client coordinates of the parent window */
1657 MapWindowPoints( 0, hwnd, &pt, 1 );
1662 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)) break;
1663 if (GetWindowLongW( hwnd, GWL_EXSTYLE ) & WS_EX_NOPARENTNOTIFY) break;
1664 if (!(parent = GetParent(hwnd))) break;
1665 if (parent == GetDesktopWindow()) break;
1666 MapWindowPoints( hwnd, parent, &pt, 1 );
1668 SendMessageW( hwnd, WM_PARENTNOTIFY,
1669 MAKEWPARAM( event, idChild ), MAKELPARAM( pt.x, pt.y ) );
1674 /***********************************************************************
1675 * accept_hardware_message
1677 * Tell the server we have passed the message to the app
1678 * (even though we may end up dropping it later on)
1680 static void accept_hardware_message( UINT hw_id, BOOL remove, HWND new_hwnd )
1682 SERVER_START_REQ( accept_hardware_message )
1685 req->remove = remove;
1686 req->new_win = wine_server_user_handle( new_hwnd );
1687 if (wine_server_call( req ))
1688 FIXME("Failed to reply to MSG_HARDWARE message. Message may not be removed from queue.\n");
1694 /***********************************************************************
1695 * process_keyboard_message
1697 * returns TRUE if the contents of 'msg' should be passed to the application
1699 static BOOL process_keyboard_message( MSG *msg, UINT hw_id, HWND hwnd_filter,
1700 UINT first, UINT last, BOOL remove )
1704 if (msg->message == WM_KEYDOWN || msg->message == WM_SYSKEYDOWN ||
1705 msg->message == WM_KEYUP || msg->message == WM_SYSKEYUP)
1706 switch (msg->wParam)
1708 case VK_LSHIFT: case VK_RSHIFT:
1709 msg->wParam = VK_SHIFT;
1711 case VK_LCONTROL: case VK_RCONTROL:
1712 msg->wParam = VK_CONTROL;
1714 case VK_LMENU: case VK_RMENU:
1715 msg->wParam = VK_MENU;
1719 /* FIXME: is this really the right place for this hook? */
1720 event.message = msg->message;
1721 event.hwnd = msg->hwnd;
1722 event.time = msg->time;
1723 event.paramL = (msg->wParam & 0xFF) | (HIWORD(msg->lParam) << 8);
1724 event.paramH = msg->lParam & 0x7FFF;
1725 if (HIWORD(msg->lParam) & 0x0100) event.paramH |= 0x8000; /* special_key - bit */
1726 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
1728 /* check message filters */
1729 if (msg->message < first || msg->message > last) return FALSE;
1730 if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
1734 if((msg->message == WM_KEYDOWN) &&
1735 (msg->hwnd != GetDesktopWindow()))
1737 /* Handle F1 key by sending out WM_HELP message */
1738 if (msg->wParam == VK_F1)
1740 PostMessageW( msg->hwnd, WM_KEYF1, 0, 0 );
1742 else if(msg->wParam >= VK_BROWSER_BACK &&
1743 msg->wParam <= VK_LAUNCH_APP2)
1745 /* FIXME: Process keystate */
1746 SendMessageW(msg->hwnd, WM_APPCOMMAND, (WPARAM)msg->hwnd, MAKELPARAM(0, (FAPPCOMMAND_KEY | (msg->wParam - VK_BROWSER_BACK + 1))));
1749 else if (msg->message == WM_KEYUP)
1751 /* Handle VK_APPS key by posting a WM_CONTEXTMENU message */
1752 if (msg->wParam == VK_APPS && !MENU_IsMenuActive())
1753 PostMessageW(msg->hwnd, WM_CONTEXTMENU, (WPARAM)msg->hwnd, (LPARAM)-1);
1757 if (HOOK_CallHooks( WH_KEYBOARD, remove ? HC_ACTION : HC_NOREMOVE,
1758 LOWORD(msg->wParam), msg->lParam, TRUE ))
1760 /* skip this message */
1761 HOOK_CallHooks( WH_CBT, HCBT_KEYSKIPPED, LOWORD(msg->wParam), msg->lParam, TRUE );
1762 accept_hardware_message( hw_id, TRUE, 0 );
1765 accept_hardware_message( hw_id, remove, 0 );
1767 if ( msg->message == WM_KEYDOWN || msg->message == WM_KEYUP )
1768 if ( ImmProcessKey(msg->hwnd, GetKeyboardLayout(0), msg->wParam, msg->lParam, 0) )
1769 msg->wParam = VK_PROCESSKEY;
1775 /***********************************************************************
1776 * process_mouse_message
1778 * returns TRUE if the contents of 'msg' should be passed to the application
1780 static BOOL process_mouse_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
1781 UINT first, UINT last, BOOL remove )
1790 MOUSEHOOKSTRUCT hook;
1793 /* find the window to dispatch this mouse message to */
1795 GetGUIThreadInfo( GetCurrentThreadId(), &info );
1796 if (info.hwndCapture)
1799 msg->hwnd = info.hwndCapture;
1803 msg->hwnd = WINPOS_WindowFromPoint( msg->hwnd, msg->pt, &hittest );
1806 if (!msg->hwnd || !WIN_IsCurrentThread( msg->hwnd ))
1808 accept_hardware_message( hw_id, TRUE, msg->hwnd );
1812 /* FIXME: is this really the right place for this hook? */
1813 event.message = msg->message;
1814 event.time = msg->time;
1815 event.hwnd = msg->hwnd;
1816 event.paramL = msg->pt.x;
1817 event.paramH = msg->pt.y;
1818 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
1820 if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
1823 message = msg->message;
1824 /* Note: windows has no concept of a non-client wheel message */
1825 if (message != WM_MOUSEWHEEL)
1827 if (hittest != HTCLIENT)
1829 message += WM_NCMOUSEMOVE - WM_MOUSEMOVE;
1830 msg->wParam = hittest;
1834 /* coordinates don't get translated while tracking a menu */
1835 /* FIXME: should differentiate popups and top-level menus */
1836 if (!(info.flags & GUI_INMENUMODE))
1837 ScreenToClient( msg->hwnd, &pt );
1840 msg->lParam = MAKELONG( pt.x, pt.y );
1842 /* translate double clicks */
1844 if ((msg->message == WM_LBUTTONDOWN) ||
1845 (msg->message == WM_RBUTTONDOWN) ||
1846 (msg->message == WM_MBUTTONDOWN) ||
1847 (msg->message == WM_XBUTTONDOWN))
1849 BOOL update = remove;
1851 /* translate double clicks -
1852 * note that ...MOUSEMOVEs can slip in between
1853 * ...BUTTONDOWN and ...BUTTONDBLCLK messages */
1855 if ((info.flags & (GUI_INMENUMODE|GUI_INMOVESIZE)) ||
1856 hittest != HTCLIENT ||
1857 (GetClassLongA( msg->hwnd, GCL_STYLE ) & CS_DBLCLKS))
1859 if ((msg->message == clk_msg.message) &&
1860 (msg->hwnd == clk_msg.hwnd) &&
1861 (msg->wParam == clk_msg.wParam) &&
1862 (msg->time - clk_msg.time < GetDoubleClickTime()) &&
1863 (abs(msg->pt.x - clk_msg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
1864 (abs(msg->pt.y - clk_msg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
1866 message += (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
1869 clk_msg.message = 0; /* clear the double click conditions */
1874 if (message < first || message > last) return FALSE;
1875 /* update static double click conditions */
1876 if (update) clk_msg = *msg;
1880 if (message < first || message > last) return FALSE;
1883 /* message is accepted now (but may still get dropped) */
1886 hook.hwnd = msg->hwnd;
1887 hook.wHitTestCode = hittest;
1888 hook.dwExtraInfo = extra_info;
1889 if (HOOK_CallHooks( WH_MOUSE, remove ? HC_ACTION : HC_NOREMOVE,
1890 message, (LPARAM)&hook, TRUE ))
1893 hook.hwnd = msg->hwnd;
1894 hook.wHitTestCode = hittest;
1895 hook.dwExtraInfo = extra_info;
1896 HOOK_CallHooks( WH_CBT, HCBT_CLICKSKIPPED, message, (LPARAM)&hook, TRUE );
1897 accept_hardware_message( hw_id, TRUE, 0 );
1901 if ((hittest == HTERROR) || (hittest == HTNOWHERE))
1903 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd,
1904 MAKELONG( hittest, msg->message ));
1905 accept_hardware_message( hw_id, TRUE, 0 );
1909 accept_hardware_message( hw_id, remove, 0 );
1911 if (!remove || info.hwndCapture)
1913 msg->message = message;
1919 if ((msg->message == WM_LBUTTONDOWN) ||
1920 (msg->message == WM_RBUTTONDOWN) ||
1921 (msg->message == WM_MBUTTONDOWN) ||
1922 (msg->message == WM_XBUTTONDOWN))
1924 /* Send the WM_PARENTNOTIFY,
1925 * note that even for double/nonclient clicks
1926 * notification message is still WM_L/M/RBUTTONDOWN.
1928 send_parent_notify( msg->hwnd, msg->message, 0, msg->pt );
1930 /* Activate the window if needed */
1932 if (msg->hwnd != info.hwndActive)
1934 HWND hwndTop = msg->hwnd;
1937 if ((GetWindowLongW( hwndTop, GWL_STYLE ) & (WS_POPUP|WS_CHILD)) != WS_CHILD) break;
1938 hwndTop = GetParent( hwndTop );
1941 if (hwndTop && hwndTop != GetDesktopWindow())
1943 LONG ret = SendMessageW( msg->hwnd, WM_MOUSEACTIVATE, (WPARAM)hwndTop,
1944 MAKELONG( hittest, msg->message ) );
1947 case MA_NOACTIVATEANDEAT:
1952 case MA_ACTIVATEANDEAT:
1957 if (!FOCUS_MouseActivate( hwndTop )) eatMsg = TRUE;
1960 WARN( "unknown WM_MOUSEACTIVATE code %d\n", ret );
1967 /* send the WM_SETCURSOR message */
1969 /* Windows sends the normal mouse message as the message parameter
1970 in the WM_SETCURSOR message even if it's non-client mouse message */
1971 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd, MAKELONG( hittest, msg->message ));
1973 msg->message = message;
1978 /***********************************************************************
1979 * process_hardware_message
1981 * Process a hardware message; return TRUE if message should be passed on to the app
1983 static BOOL process_hardware_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
1984 UINT first, UINT last, BOOL remove )
1986 if (is_keyboard_message( msg->message ))
1987 return process_keyboard_message( msg, hw_id, hwnd_filter, first, last, remove );
1989 if (is_mouse_message( msg->message ))
1990 return process_mouse_message( msg, hw_id, extra_info, hwnd_filter, first, last, remove );
1992 ERR( "unknown message type %x\n", msg->message );
1997 /***********************************************************************
1998 * call_sendmsg_callback
2000 * Call the callback function of SendMessageCallback.
2002 static inline void call_sendmsg_callback( SENDASYNCPROC callback, HWND hwnd, UINT msg,
2003 ULONG_PTR data, LRESULT result )
2005 if (!callback) return;
2007 if (TRACE_ON(relay))
2008 DPRINTF( "%04x:Call message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
2009 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
2011 callback( hwnd, msg, data, result );
2012 if (TRACE_ON(relay))
2013 DPRINTF( "%04x:Ret message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
2014 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
2019 /***********************************************************************
2022 * Peek for a message matching the given parameters. Return FALSE if none available.
2023 * All pending sent messages are processed before returning.
2025 static BOOL peek_message( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags, UINT changed_mask )
2028 struct user_thread_info *thread_info = get_user_thread_info();
2029 struct received_message_info info, *old_info;
2030 unsigned int hw_id = 0; /* id of previous hardware message */
2032 size_t buffer_size = 256;
2034 if (!(buffer = HeapAlloc( GetProcessHeap(), 0, buffer_size ))) return FALSE;
2036 if (!first && !last) last = ~0;
2037 if (hwnd == HWND_BROADCAST || hwnd == HWND_TOPMOST || hwnd == HWND_BOTTOM)
2044 const message_data_t *msg_data = buffer;
2046 SERVER_START_REQ( get_message )
2049 req->get_win = wine_server_user_handle( hwnd );
2050 req->get_first = first;
2051 req->get_last = last;
2053 req->wake_mask = changed_mask & (QS_SENDMESSAGE | QS_SMRESULT);
2054 req->changed_mask = changed_mask;
2055 wine_server_set_reply( req, buffer, buffer_size );
2056 if (!(res = wine_server_call( req )))
2058 size = wine_server_reply_size( reply );
2059 info.type = reply->type;
2060 info.msg.hwnd = wine_server_ptr_handle( reply->win );
2061 info.msg.message = reply->msg;
2062 info.msg.wParam = reply->wparam;
2063 info.msg.lParam = reply->lparam;
2064 info.msg.time = reply->time;
2068 thread_info->active_hooks = reply->active_hooks;
2070 else buffer_size = reply->total;
2076 HeapFree( GetProcessHeap(), 0, buffer );
2077 if (res != STATUS_BUFFER_OVERFLOW) return FALSE;
2078 if (!(buffer = HeapAlloc( GetProcessHeap(), 0, buffer_size ))) return FALSE;
2082 TRACE( "got type %d msg %x (%s) hwnd %p wp %lx lp %lx\n",
2083 info.type, info.msg.message,
2084 (info.type == MSG_WINEVENT) ? "MSG_WINEVENT" : SPY_GetMsgName(info.msg.message, info.msg.hwnd),
2085 info.msg.hwnd, info.msg.wParam, info.msg.lParam );
2091 info.flags = ISMEX_SEND;
2094 info.flags = ISMEX_NOTIFY;
2097 info.flags = ISMEX_CALLBACK;
2099 case MSG_CALLBACK_RESULT:
2100 if (size >= sizeof(msg_data->callback))
2101 call_sendmsg_callback( wine_server_get_ptr(msg_data->callback.callback),
2102 info.msg.hwnd, info.msg.message,
2103 msg_data->callback.data, msg_data->callback.result );
2106 if (size >= sizeof(msg_data->winevent))
2108 WINEVENTPROC hook_proc;
2110 hook_proc = wine_server_get_ptr( msg_data->winevent.hook_proc );
2111 size -= sizeof(msg_data->winevent);
2114 WCHAR module[MAX_PATH];
2116 size = min( size, (MAX_PATH - 1) * sizeof(WCHAR) );
2117 memcpy( module, &msg_data->winevent + 1, size );
2118 module[size / sizeof(WCHAR)] = 0;
2119 if (!(hook_proc = get_hook_proc( hook_proc, module )))
2121 ERR( "invalid winevent hook module name %s\n", debugstr_w(module) );
2126 if (TRACE_ON(relay))
2127 DPRINTF( "%04x:Call winevent proc %p (hook=%04x,event=%x,hwnd=%p,object_id=%lx,child_id=%lx,tid=%04x,time=%x)\n",
2128 GetCurrentThreadId(), hook_proc,
2129 msg_data->winevent.hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2130 info.msg.lParam, msg_data->winevent.tid, info.msg.time);
2132 hook_proc( wine_server_ptr_handle( msg_data->winevent.hook ), info.msg.message,
2133 info.msg.hwnd, info.msg.wParam, info.msg.lParam,
2134 msg_data->winevent.tid, info.msg.time );
2136 if (TRACE_ON(relay))
2137 DPRINTF( "%04x:Ret winevent proc %p (hook=%04x,event=%x,hwnd=%p,object_id=%lx,child_id=%lx,tid=%04x,time=%x)\n",
2138 GetCurrentThreadId(), hook_proc,
2139 msg_data->winevent.hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2140 info.msg.lParam, msg_data->winevent.tid, info.msg.time);
2143 case MSG_OTHER_PROCESS:
2144 info.flags = ISMEX_SEND;
2145 if (!unpack_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
2146 &info.msg.lParam, &buffer, size ))
2149 reply_message( &info, 0, TRUE );
2154 if (size >= sizeof(msg_data->hardware))
2156 info.msg.pt.x = msg_data->hardware.x;
2157 info.msg.pt.y = msg_data->hardware.y;
2158 hw_id = msg_data->hardware.hw_id;
2159 if (!process_hardware_message( &info.msg, hw_id, msg_data->hardware.info,
2160 hwnd, first, last, flags & PM_REMOVE ))
2162 TRACE("dropping msg %x\n", info.msg.message );
2163 continue; /* ignore it */
2166 thread_info->GetMessagePosVal = MAKELONG( info.msg.pt.x, info.msg.pt.y );
2167 thread_info->GetMessageTimeVal = info.msg.time;
2168 thread_info->GetMessageExtraInfoVal = msg_data->hardware.info;
2169 HeapFree( GetProcessHeap(), 0, buffer );
2170 HOOK_CallHooks( WH_GETMESSAGE, HC_ACTION, flags & PM_REMOVE, (LPARAM)msg, TRUE );
2175 if (info.msg.message & 0x80000000) /* internal message */
2177 if (flags & PM_REMOVE)
2179 handle_internal_message( info.msg.hwnd, info.msg.message,
2180 info.msg.wParam, info.msg.lParam );
2181 /* if this is a nested call return right away */
2182 if (first == info.msg.message && last == info.msg.message) return FALSE;
2185 peek_message( msg, info.msg.hwnd, info.msg.message,
2186 info.msg.message, flags | PM_REMOVE, changed_mask );
2189 if (info.msg.message >= WM_DDE_FIRST && info.msg.message <= WM_DDE_LAST)
2191 if (!unpack_dde_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
2192 &info.msg.lParam, &buffer, size ))
2193 continue; /* ignore it */
2196 msg->pt.x = (short)LOWORD( thread_info->GetMessagePosVal );
2197 msg->pt.y = (short)HIWORD( thread_info->GetMessagePosVal );
2198 thread_info->GetMessageTimeVal = info.msg.time;
2199 thread_info->GetMessageExtraInfoVal = 0;
2200 HeapFree( GetProcessHeap(), 0, buffer );
2201 HOOK_CallHooks( WH_GETMESSAGE, HC_ACTION, flags & PM_REMOVE, (LPARAM)msg, TRUE );
2205 /* if we get here, we have a sent message; call the window procedure */
2206 old_info = thread_info->receive_info;
2207 thread_info->receive_info = &info;
2208 result = call_window_proc( info.msg.hwnd, info.msg.message, info.msg.wParam,
2209 info.msg.lParam, (info.type != MSG_ASCII), FALSE,
2210 WMCHAR_MAP_RECVMESSAGE );
2211 reply_message( &info, result, TRUE );
2212 thread_info->receive_info = old_info;
2214 /* if some PM_QS* flags were specified, only handle sent messages from now on */
2215 if (HIWORD(flags) && !changed_mask) flags = PM_QS_SENDMESSAGE | LOWORD(flags);
2220 /***********************************************************************
2221 * process_sent_messages
2223 * Process all pending sent messages.
2225 static inline void process_sent_messages(void)
2228 peek_message( &msg, 0, 0, 0, PM_REMOVE | PM_QS_SENDMESSAGE, 0 );
2232 /***********************************************************************
2233 * get_server_queue_handle
2235 * Get a handle to the server message queue for the current thread.
2237 static HANDLE get_server_queue_handle(void)
2239 struct user_thread_info *thread_info = get_user_thread_info();
2242 if (!(ret = thread_info->server_queue))
2244 SERVER_START_REQ( get_msg_queue )
2246 wine_server_call( req );
2247 ret = wine_server_ptr_handle( reply->handle );
2250 thread_info->server_queue = ret;
2251 if (!ret) ERR( "Cannot get server thread queue\n" );
2257 /***********************************************************************
2258 * wait_message_reply
2260 * Wait until a sent message gets replied to.
2262 static void wait_message_reply( UINT flags )
2264 HANDLE server_queue = get_server_queue_handle();
2268 unsigned int wake_bits = 0;
2271 SERVER_START_REQ( set_queue_mask )
2273 req->wake_mask = QS_SMRESULT | ((flags & SMTO_BLOCK) ? 0 : QS_SENDMESSAGE);
2274 req->changed_mask = req->wake_mask;
2276 if (!wine_server_call( req ))
2277 wake_bits = reply->wake_bits;
2281 if (wake_bits & QS_SMRESULT) return; /* got a result */
2282 if (wake_bits & QS_SENDMESSAGE)
2284 /* Process the sent message immediately */
2285 process_sent_messages();
2289 /* now wait for it */
2291 ReleaseThunkLock( &dwlc );
2292 res = USER_Driver->pMsgWaitForMultipleObjectsEx( 1, &server_queue,
2293 INFINITE, QS_SENDMESSAGE, 0 );
2294 if (dwlc) RestoreThunkLock( dwlc );
2298 /***********************************************************************
2299 * put_message_in_queue
2301 * Put a sent message into the destination queue.
2302 * For inter-process message, reply_size is set to expected size of reply data.
2304 static BOOL put_message_in_queue( const struct send_message_info *info, size_t *reply_size )
2306 struct packed_message data;
2307 message_data_t msg_data;
2310 timeout_t timeout = TIMEOUT_INFINITE;
2312 /* Check for INFINITE timeout for compatibility with Win9x,
2313 * although Windows >= NT does not do so
2315 if (info->type != MSG_NOTIFY &&
2316 info->type != MSG_CALLBACK &&
2317 info->type != MSG_POSTED &&
2319 info->timeout != INFINITE)
2321 /* timeout is signed despite the prototype */
2322 timeout = (timeout_t)max( 0, (int)info->timeout ) * -10000;
2326 if (info->type == MSG_OTHER_PROCESS)
2328 *reply_size = pack_message( info->hwnd, info->msg, info->wparam, info->lparam, &data );
2329 if (data.count == -1)
2331 WARN( "cannot pack message %x\n", info->msg );
2335 else if (info->type == MSG_CALLBACK)
2337 msg_data.callback.callback = wine_server_client_ptr( info->callback );
2338 msg_data.callback.data = info->data;
2339 msg_data.callback.result = 0;
2340 data.data[0] = &msg_data;
2341 data.size[0] = sizeof(msg_data.callback);
2344 else if (info->type == MSG_POSTED && info->msg >= WM_DDE_FIRST && info->msg <= WM_DDE_LAST)
2346 return post_dde_message( &data, info );
2349 SERVER_START_REQ( send_message )
2351 req->id = info->dest_tid;
2352 req->type = info->type;
2354 req->win = wine_server_user_handle( info->hwnd );
2355 req->msg = info->msg;
2356 req->wparam = info->wparam;
2357 req->lparam = info->lparam;
2358 req->timeout = timeout;
2360 if (info->flags & SMTO_ABORTIFHUNG) req->flags |= SEND_MSG_ABORT_IF_HUNG;
2361 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
2362 if ((res = wine_server_call( req )))
2364 if (res == STATUS_INVALID_PARAMETER)
2365 /* FIXME: find a STATUS_ value for this one */
2366 SetLastError( ERROR_INVALID_THREAD_ID );
2368 SetLastError( RtlNtStatusToDosError(res) );
2376 /***********************************************************************
2379 * Retrieve a message reply from the server.
2381 static LRESULT retrieve_reply( const struct send_message_info *info,
2382 size_t reply_size, LRESULT *result )
2385 void *reply_data = NULL;
2389 if (!(reply_data = HeapAlloc( GetProcessHeap(), 0, reply_size )))
2391 WARN( "no memory for reply, will be truncated\n" );
2395 SERVER_START_REQ( get_message_reply )
2398 if (reply_size) wine_server_set_reply( req, reply_data, reply_size );
2399 if (!(status = wine_server_call( req ))) *result = reply->result;
2400 reply_size = wine_server_reply_size( reply );
2403 if (!status && reply_size)
2404 unpack_reply( info->hwnd, info->msg, info->wparam, info->lparam, reply_data, reply_size );
2406 HeapFree( GetProcessHeap(), 0, reply_data );
2408 TRACE( "hwnd %p msg %x (%s) wp %lx lp %lx got reply %lx (err=%d)\n",
2409 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam,
2410 info->lparam, *result, status );
2412 /* MSDN states that last error is 0 on timeout, but at least NT4 returns ERROR_TIMEOUT */
2413 if (status) SetLastError( RtlNtStatusToDosError(status) );
2418 /***********************************************************************
2419 * send_inter_thread_message
2421 static LRESULT send_inter_thread_message( const struct send_message_info *info, LRESULT *res_ptr )
2423 size_t reply_size = 0;
2425 TRACE( "hwnd %p msg %x (%s) wp %lx lp %lx\n",
2426 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam, info->lparam );
2428 USER_CheckNotLock();
2430 if (!put_message_in_queue( info, &reply_size )) return 0;
2432 /* there's no reply to wait for on notify/callback messages */
2433 if (info->type == MSG_NOTIFY || info->type == MSG_CALLBACK) return 1;
2435 wait_message_reply( info->flags );
2436 return retrieve_reply( info, reply_size, res_ptr );
2440 /***********************************************************************
2441 * send_inter_thread_callback
2443 static LRESULT send_inter_thread_callback( HWND hwnd, UINT msg, WPARAM wp, LPARAM lp,
2444 LRESULT *result, void *arg )
2446 struct send_message_info *info = arg;
2451 return send_inter_thread_message( info, result );
2455 /***********************************************************************
2458 * Backend implementation of the various SendMessage functions.
2460 static BOOL send_message( struct send_message_info *info, DWORD_PTR *res_ptr, BOOL unicode )
2466 if (is_broadcast(info->hwnd))
2468 EnumWindows( broadcast_message_callback, (LPARAM)info );
2469 if (res_ptr) *res_ptr = 1;
2473 if (!(info->dest_tid = GetWindowThreadProcessId( info->hwnd, &dest_pid ))) return FALSE;
2475 if (USER_IsExitingThread( info->dest_tid )) return FALSE;
2477 SPY_EnterMessage( SPY_SENDMESSAGE, info->hwnd, info->msg, info->wparam, info->lparam );
2479 if (info->dest_tid == GetCurrentThreadId())
2481 result = call_window_proc( info->hwnd, info->msg, info->wparam, info->lparam,
2482 unicode, TRUE, info->wm_char );
2483 if (info->type == MSG_CALLBACK)
2484 call_sendmsg_callback( info->callback, info->hwnd, info->msg, info->data, result );
2489 if (dest_pid != GetCurrentProcessId() && (info->type == MSG_ASCII || info->type == MSG_UNICODE))
2490 info->type = MSG_OTHER_PROCESS;
2492 /* MSG_ASCII can be sent unconverted except for WM_CHAR; everything else needs to be Unicode */
2493 if (!unicode && is_unicode_message( info->msg ) &&
2494 (info->type != MSG_ASCII || info->msg == WM_CHAR))
2495 ret = WINPROC_CallProcAtoW( send_inter_thread_callback, info->hwnd, info->msg,
2496 info->wparam, info->lparam, &result, info, info->wm_char );
2498 ret = send_inter_thread_message( info, &result );
2501 SPY_ExitMessage( SPY_RESULT_OK, info->hwnd, info->msg, result, info->wparam, info->lparam );
2502 if (ret && res_ptr) *res_ptr = result;
2507 /***********************************************************************
2508 * MSG_SendInternalMessageTimeout
2510 * Same as SendMessageTimeoutW but sends the message to a specific thread
2511 * without requiring a window handle. Only works for internal Wine messages.
2513 LRESULT MSG_SendInternalMessageTimeout( DWORD dest_pid, DWORD dest_tid,
2514 UINT msg, WPARAM wparam, LPARAM lparam,
2515 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2517 struct send_message_info info;
2518 LRESULT ret, result;
2520 assert( msg & 0x80000000 ); /* must be an internal Wine message */
2522 info.type = MSG_UNICODE;
2523 info.dest_tid = dest_tid;
2526 info.wparam = wparam;
2527 info.lparam = lparam;
2529 info.timeout = timeout;
2531 if (USER_IsExitingThread( dest_tid )) return 0;
2533 if (dest_tid == GetCurrentThreadId())
2535 result = handle_internal_message( 0, msg, wparam, lparam );
2540 if (dest_pid != GetCurrentProcessId()) info.type = MSG_OTHER_PROCESS;
2541 ret = send_inter_thread_message( &info, &result );
2543 if (ret && res_ptr) *res_ptr = result;
2548 /***********************************************************************
2549 * SendMessageTimeoutW (USER32.@)
2551 LRESULT WINAPI SendMessageTimeoutW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2552 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2554 struct send_message_info info;
2556 info.type = MSG_UNICODE;
2559 info.wparam = wparam;
2560 info.lparam = lparam;
2562 info.timeout = timeout;
2564 return send_message( &info, res_ptr, TRUE );
2567 /***********************************************************************
2568 * SendMessageTimeoutA (USER32.@)
2570 LRESULT WINAPI SendMessageTimeoutA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2571 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2573 struct send_message_info info;
2575 info.type = MSG_ASCII;
2578 info.wparam = wparam;
2579 info.lparam = lparam;
2581 info.timeout = timeout;
2582 info.wm_char = WMCHAR_MAP_SENDMESSAGETIMEOUT;
2584 return send_message( &info, res_ptr, FALSE );
2588 /***********************************************************************
2589 * SendMessageW (USER32.@)
2591 LRESULT WINAPI SendMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2594 struct send_message_info info;
2596 info.type = MSG_UNICODE;
2599 info.wparam = wparam;
2600 info.lparam = lparam;
2601 info.flags = SMTO_NORMAL;
2604 send_message( &info, &res, TRUE );
2609 /***********************************************************************
2610 * SendMessageA (USER32.@)
2612 LRESULT WINAPI SendMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2615 struct send_message_info info;
2617 info.type = MSG_ASCII;
2620 info.wparam = wparam;
2621 info.lparam = lparam;
2622 info.flags = SMTO_NORMAL;
2624 info.wm_char = WMCHAR_MAP_SENDMESSAGE;
2626 send_message( &info, &res, FALSE );
2631 /***********************************************************************
2632 * SendNotifyMessageA (USER32.@)
2634 BOOL WINAPI SendNotifyMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2636 struct send_message_info info;
2638 if (is_pointer_message(msg))
2640 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2644 info.type = MSG_NOTIFY;
2647 info.wparam = wparam;
2648 info.lparam = lparam;
2650 info.wm_char = WMCHAR_MAP_SENDMESSAGETIMEOUT;
2652 return send_message( &info, NULL, FALSE );
2656 /***********************************************************************
2657 * SendNotifyMessageW (USER32.@)
2659 BOOL WINAPI SendNotifyMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2661 struct send_message_info info;
2663 if (is_pointer_message(msg))
2665 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2669 info.type = MSG_NOTIFY;
2672 info.wparam = wparam;
2673 info.lparam = lparam;
2676 return send_message( &info, NULL, TRUE );
2680 /***********************************************************************
2681 * SendMessageCallbackA (USER32.@)
2683 BOOL WINAPI SendMessageCallbackA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2684 SENDASYNCPROC callback, ULONG_PTR data )
2686 struct send_message_info info;
2688 if (is_pointer_message(msg))
2690 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2694 info.type = MSG_CALLBACK;
2697 info.wparam = wparam;
2698 info.lparam = lparam;
2699 info.callback = callback;
2702 info.wm_char = WMCHAR_MAP_SENDMESSAGETIMEOUT;
2704 return send_message( &info, NULL, FALSE );
2708 /***********************************************************************
2709 * SendMessageCallbackW (USER32.@)
2711 BOOL WINAPI SendMessageCallbackW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2712 SENDASYNCPROC callback, ULONG_PTR data )
2714 struct send_message_info info;
2716 if (is_pointer_message(msg))
2718 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2722 info.type = MSG_CALLBACK;
2725 info.wparam = wparam;
2726 info.lparam = lparam;
2727 info.callback = callback;
2731 return send_message( &info, NULL, TRUE );
2735 /***********************************************************************
2736 * ReplyMessage (USER32.@)
2738 BOOL WINAPI ReplyMessage( LRESULT result )
2740 struct received_message_info *info = get_user_thread_info()->receive_info;
2742 if (!info) return FALSE;
2743 reply_message( info, result, FALSE );
2748 /***********************************************************************
2749 * InSendMessage (USER32.@)
2751 BOOL WINAPI InSendMessage(void)
2753 return (InSendMessageEx(NULL) & (ISMEX_SEND|ISMEX_REPLIED)) == ISMEX_SEND;
2757 /***********************************************************************
2758 * InSendMessageEx (USER32.@)
2760 DWORD WINAPI InSendMessageEx( LPVOID reserved )
2762 struct received_message_info *info = get_user_thread_info()->receive_info;
2764 if (info) return info->flags;
2765 return ISMEX_NOSEND;
2769 /***********************************************************************
2770 * PostMessageA (USER32.@)
2772 BOOL WINAPI PostMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2774 if (!map_wparam_AtoW( msg, &wparam, WMCHAR_MAP_POSTMESSAGE )) return TRUE;
2775 return PostMessageW( hwnd, msg, wparam, lparam );
2779 /***********************************************************************
2780 * PostMessageW (USER32.@)
2782 BOOL WINAPI PostMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2784 struct send_message_info info;
2786 if (is_pointer_message( msg ))
2788 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2792 TRACE( "hwnd %p msg %x (%s) wp %lx lp %lx\n",
2793 hwnd, msg, SPY_GetMsgName(msg, hwnd), wparam, lparam );
2795 info.type = MSG_POSTED;
2798 info.wparam = wparam;
2799 info.lparam = lparam;
2802 if (is_broadcast(hwnd))
2804 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2808 if (!hwnd) return PostThreadMessageW( GetCurrentThreadId(), msg, wparam, lparam );
2810 if (!(info.dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
2812 if (USER_IsExitingThread( info.dest_tid )) return TRUE;
2814 return put_message_in_queue( &info, NULL );
2818 /**********************************************************************
2819 * PostThreadMessageA (USER32.@)
2821 BOOL WINAPI PostThreadMessageA( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2823 if (!map_wparam_AtoW( msg, &wparam, WMCHAR_MAP_POSTMESSAGE )) return TRUE;
2824 return PostThreadMessageW( thread, msg, wparam, lparam );
2828 /**********************************************************************
2829 * PostThreadMessageW (USER32.@)
2831 BOOL WINAPI PostThreadMessageW( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2833 struct send_message_info info;
2835 if (is_pointer_message( msg ))
2837 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2840 if (USER_IsExitingThread( thread )) return TRUE;
2842 info.type = MSG_POSTED;
2843 info.dest_tid = thread;
2846 info.wparam = wparam;
2847 info.lparam = lparam;
2849 return put_message_in_queue( &info, NULL );
2853 /***********************************************************************
2854 * PostQuitMessage (USER32.@)
2856 * Posts a quit message to the current thread's message queue.
2859 * exit_code [I] Exit code to return from message loop.
2865 * This function is not the same as calling:
2866 *|PostThreadMessage(GetCurrentThreadId(), WM_QUIT, exit_code, 0);
2867 * It instead sets a flag in the message queue that signals it to generate
2868 * a WM_QUIT message when there are no other pending sent or posted messages
2871 void WINAPI PostQuitMessage( INT exit_code )
2873 SERVER_START_REQ( post_quit_message )
2875 req->exit_code = exit_code;
2876 wine_server_call( req );
2882 /***********************************************************************
2883 * PeekMessageW (USER32.@)
2885 BOOL WINAPI PeekMessageW( MSG *msg_out, HWND hwnd, UINT first, UINT last, UINT flags )
2889 USER_CheckNotLock();
2891 /* check for graphics events */
2892 USER_Driver->pMsgWaitForMultipleObjectsEx( 0, NULL, 0, QS_ALLINPUT, 0 );
2894 if (!peek_message( &msg, hwnd, first, last, flags, 0 ))
2896 if (!(flags & PM_NOYIELD))
2899 ReleaseThunkLock(&count);
2901 if (count) RestoreThunkLock(count);
2906 /* copy back our internal safe copy of message data to msg_out.
2907 * msg_out is a variable from the *program*, so it can't be used
2908 * internally as it can get "corrupted" by our use of SendMessage()
2909 * (back to the program) inside the message handling itself. */
2912 SetLastError( ERROR_NOACCESS );
2920 /***********************************************************************
2921 * PeekMessageA (USER32.@)
2923 BOOL WINAPI PeekMessageA( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags )
2925 if (get_pending_wmchar( msg, first, last, (flags & PM_REMOVE) )) return TRUE;
2926 if (!PeekMessageW( msg, hwnd, first, last, flags )) return FALSE;
2927 map_wparam_WtoA( msg, (flags & PM_REMOVE) );
2932 /***********************************************************************
2933 * GetMessageW (USER32.@)
2935 BOOL WINAPI GetMessageW( MSG *msg, HWND hwnd, UINT first, UINT last )
2937 HANDLE server_queue = get_server_queue_handle();
2938 unsigned int mask = QS_POSTMESSAGE | QS_SENDMESSAGE; /* Always selected */
2940 USER_CheckNotLock();
2942 /* check for graphics events */
2943 USER_Driver->pMsgWaitForMultipleObjectsEx( 0, NULL, 0, QS_ALLINPUT, 0 );
2947 if ((first <= WM_KEYLAST) && (last >= WM_KEYFIRST)) mask |= QS_KEY;
2948 if ( ((first <= WM_MOUSELAST) && (last >= WM_MOUSEFIRST)) ||
2949 ((first <= WM_NCMOUSELAST) && (last >= WM_NCMOUSEFIRST)) ) mask |= QS_MOUSE;
2950 if ((first <= WM_TIMER) && (last >= WM_TIMER)) mask |= QS_TIMER;
2951 if ((first <= WM_SYSTIMER) && (last >= WM_SYSTIMER)) mask |= QS_TIMER;
2952 if ((first <= WM_PAINT) && (last >= WM_PAINT)) mask |= QS_PAINT;
2954 else mask = QS_ALLINPUT;
2956 while (!peek_message( msg, hwnd, first, last, PM_REMOVE | (mask << 16), mask ))
2960 ReleaseThunkLock( &dwlc );
2961 USER_Driver->pMsgWaitForMultipleObjectsEx( 1, &server_queue, INFINITE, mask, 0 );
2962 if (dwlc) RestoreThunkLock( dwlc );
2965 return (msg->message != WM_QUIT);
2969 /***********************************************************************
2970 * GetMessageA (USER32.@)
2972 BOOL WINAPI GetMessageA( MSG *msg, HWND hwnd, UINT first, UINT last )
2974 if (get_pending_wmchar( msg, first, last, TRUE )) return TRUE;
2975 GetMessageW( msg, hwnd, first, last );
2976 map_wparam_WtoA( msg, TRUE );
2977 return (msg->message != WM_QUIT);
2981 /***********************************************************************
2982 * IsDialogMessageA (USER32.@)
2983 * IsDialogMessage (USER32.@)
2985 BOOL WINAPI IsDialogMessageA( HWND hwndDlg, LPMSG pmsg )
2988 map_wparam_AtoW( msg.message, &msg.wParam, WMCHAR_MAP_NOMAPPING );
2989 return IsDialogMessageW( hwndDlg, &msg );
2993 /***********************************************************************
2994 * TranslateMessage (USER32.@)
2996 * Implementation of TranslateMessage.
2998 * TranslateMessage translates virtual-key messages into character-messages,
3000 * WM_KEYDOWN/WM_KEYUP combinations produce a WM_CHAR or WM_DEADCHAR message.
3001 * ditto replacing WM_* with WM_SYS*
3002 * This produces WM_CHAR messages only for keys mapped to ASCII characters
3003 * by the keyboard driver.
3005 * If the message is WM_KEYDOWN, WM_KEYUP, WM_SYSKEYDOWN, or WM_SYSKEYUP, the
3006 * return value is nonzero, regardless of the translation.
3009 BOOL WINAPI TranslateMessage( const MSG *msg )
3015 if (msg->message < WM_KEYFIRST || msg->message > WM_KEYLAST) return FALSE;
3016 if (msg->message != WM_KEYDOWN && msg->message != WM_SYSKEYDOWN) return TRUE;
3018 TRACE_(key)("Translating key %s (%04lx), scancode %02x\n",
3019 SPY_GetVKeyName(msg->wParam), msg->wParam, LOBYTE(HIWORD(msg->lParam)));
3021 if ( msg->wParam == VK_PROCESSKEY )
3022 return ImmTranslateMessage(msg->hwnd, msg->message, msg->wParam, msg->lParam);
3024 GetKeyboardState( state );
3025 /* FIXME : should handle ToUnicode yielding 2 */
3026 switch (ToUnicode(msg->wParam, HIWORD(msg->lParam), state, wp, 2, 0))
3029 message = (msg->message == WM_KEYDOWN) ? WM_CHAR : WM_SYSCHAR;
3030 TRACE_(key)("1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
3031 msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
3032 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
3036 message = (msg->message == WM_KEYDOWN) ? WM_DEADCHAR : WM_SYSDEADCHAR;
3037 TRACE_(key)("-1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
3038 msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
3039 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
3046 /***********************************************************************
3047 * DispatchMessageA (USER32.@)
3049 * See DispatchMessageW.
3051 LRESULT WINAPI DispatchMessageA( const MSG* msg )
3055 /* Process timer messages */
3056 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
3058 if (msg->lParam) return CallWindowProcA( (WNDPROC)msg->lParam, msg->hwnd,
3059 msg->message, msg->wParam, GetTickCount() );
3061 if (!msg->hwnd) return 0;
3063 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
3064 msg->wParam, msg->lParam );
3066 if (!WINPROC_call_window( msg->hwnd, msg->message, msg->wParam, msg->lParam,
3067 &retval, FALSE, WMCHAR_MAP_DISPATCHMESSAGE ))
3069 if (!IsWindow( msg->hwnd )) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
3070 else SetLastError( ERROR_MESSAGE_SYNC_ONLY );
3074 SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
3075 msg->wParam, msg->lParam );
3077 if (msg->message == WM_PAINT)
3079 /* send a WM_NCPAINT and WM_ERASEBKGND if the non-client area is still invalid */
3080 HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
3081 GetUpdateRgn( msg->hwnd, hrgn, TRUE );
3082 DeleteObject( hrgn );
3088 /***********************************************************************
3089 * DispatchMessageW (USER32.@) Process a message
3091 * Process the message specified in the structure *_msg_.
3093 * If the lpMsg parameter points to a WM_TIMER message and the
3094 * parameter of the WM_TIMER message is not NULL, the lParam parameter
3095 * points to the function that is called instead of the window
3098 * The message must be valid.
3102 * DispatchMessage() returns the result of the window procedure invoked.
3109 LRESULT WINAPI DispatchMessageW( const MSG* msg )
3113 /* Process timer messages */
3114 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
3116 if (msg->lParam) return CallWindowProcW( (WNDPROC)msg->lParam, msg->hwnd,
3117 msg->message, msg->wParam, GetTickCount() );
3119 if (!msg->hwnd) return 0;
3121 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
3122 msg->wParam, msg->lParam );
3124 if (!WINPROC_call_window( msg->hwnd, msg->message, msg->wParam, msg->lParam,
3125 &retval, TRUE, WMCHAR_MAP_DISPATCHMESSAGE ))
3127 if (!IsWindow( msg->hwnd )) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
3128 else SetLastError( ERROR_MESSAGE_SYNC_ONLY );
3132 SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
3133 msg->wParam, msg->lParam );
3135 if (msg->message == WM_PAINT)
3137 /* send a WM_NCPAINT and WM_ERASEBKGND if the non-client area is still invalid */
3138 HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
3139 GetUpdateRgn( msg->hwnd, hrgn, TRUE );
3140 DeleteObject( hrgn );
3146 /***********************************************************************
3147 * GetMessagePos (USER.119)
3148 * GetMessagePos (USER32.@)
3150 * The GetMessagePos() function returns a long value representing a
3151 * cursor position, in screen coordinates, when the last message
3152 * retrieved by the GetMessage() function occurs. The x-coordinate is
3153 * in the low-order word of the return value, the y-coordinate is in
3154 * the high-order word. The application can use the MAKEPOINT()
3155 * macro to obtain a POINT structure from the return value.
3157 * For the current cursor position, use GetCursorPos().
3161 * Cursor position of last message on success, zero on failure.
3168 DWORD WINAPI GetMessagePos(void)
3170 return get_user_thread_info()->GetMessagePosVal;
3174 /***********************************************************************
3175 * GetMessageTime (USER.120)
3176 * GetMessageTime (USER32.@)
3178 * GetMessageTime() returns the message time for the last message
3179 * retrieved by the function. The time is measured in milliseconds with
3180 * the same offset as GetTickCount().
3182 * Since the tick count wraps, this is only useful for moderately short
3183 * relative time comparisons.
3187 * Time of last message on success, zero on failure.
3189 LONG WINAPI GetMessageTime(void)
3191 return get_user_thread_info()->GetMessageTimeVal;
3195 /***********************************************************************
3196 * GetMessageExtraInfo (USER.288)
3197 * GetMessageExtraInfo (USER32.@)
3199 LPARAM WINAPI GetMessageExtraInfo(void)
3201 return get_user_thread_info()->GetMessageExtraInfoVal;
3205 /***********************************************************************
3206 * SetMessageExtraInfo (USER32.@)
3208 LPARAM WINAPI SetMessageExtraInfo(LPARAM lParam)
3210 struct user_thread_info *thread_info = get_user_thread_info();
3211 LONG old_value = thread_info->GetMessageExtraInfoVal;
3212 thread_info->GetMessageExtraInfoVal = lParam;
3217 /***********************************************************************
3218 * WaitMessage (USER.112) Suspend thread pending messages
3219 * WaitMessage (USER32.@) Suspend thread pending messages
3221 * WaitMessage() suspends a thread until events appear in the thread's
3224 BOOL WINAPI WaitMessage(void)
3226 return (MsgWaitForMultipleObjectsEx( 0, NULL, INFINITE, QS_ALLINPUT, 0 ) != WAIT_FAILED);
3230 /***********************************************************************
3231 * MsgWaitForMultipleObjectsEx (USER32.@)
3233 DWORD WINAPI MsgWaitForMultipleObjectsEx( DWORD count, CONST HANDLE *pHandles,
3234 DWORD timeout, DWORD mask, DWORD flags )
3236 HANDLE handles[MAXIMUM_WAIT_OBJECTS];
3239 if (count > MAXIMUM_WAIT_OBJECTS-1)
3241 SetLastError( ERROR_INVALID_PARAMETER );
3245 /* set the queue mask */
3246 SERVER_START_REQ( set_queue_mask )
3248 req->wake_mask = (flags & MWMO_INPUTAVAILABLE) ? mask : 0;
3249 req->changed_mask = mask;
3251 wine_server_call( req );
3255 /* add the queue to the handle list */
3256 for (i = 0; i < count; i++) handles[i] = pHandles[i];
3257 handles[count] = get_server_queue_handle();
3259 ReleaseThunkLock( &lock );
3260 ret = USER_Driver->pMsgWaitForMultipleObjectsEx( count+1, handles, timeout, mask, flags );
3261 if (lock) RestoreThunkLock( lock );
3266 /***********************************************************************
3267 * MsgWaitForMultipleObjects (USER32.@)
3269 DWORD WINAPI MsgWaitForMultipleObjects( DWORD count, CONST HANDLE *handles,
3270 BOOL wait_all, DWORD timeout, DWORD mask )
3272 return MsgWaitForMultipleObjectsEx( count, handles, timeout, mask,
3273 wait_all ? MWMO_WAITALL : 0 );
3277 /***********************************************************************
3278 * WaitForInputIdle (USER32.@)
3280 DWORD WINAPI WaitForInputIdle( HANDLE hProcess, DWORD dwTimeOut )
3282 DWORD start_time, elapsed, ret;
3285 handles[0] = hProcess;
3286 SERVER_START_REQ( get_process_idle_event )
3288 req->handle = wine_server_obj_handle( hProcess );
3289 if (!(ret = wine_server_call_err( req )))
3290 handles[1] = wine_server_ptr_handle( reply->event );
3293 if (ret) return WAIT_FAILED; /* error */
3294 if (!handles[1]) return 0; /* no event to wait on */
3296 start_time = GetTickCount();
3299 TRACE("waiting for %p\n", handles[1] );
3302 ret = MsgWaitForMultipleObjects ( 2, handles, FALSE, dwTimeOut - elapsed, QS_SENDMESSAGE );
3307 case WAIT_OBJECT_0+2:
3308 process_sent_messages();
3312 TRACE("timeout or error\n");
3315 TRACE("finished\n");
3318 if (dwTimeOut != INFINITE)
3320 elapsed = GetTickCount() - start_time;
3321 if (elapsed > dwTimeOut)
3327 return WAIT_TIMEOUT;
3331 /***********************************************************************
3332 * UserYield (USER.332)
3334 void WINAPI UserYield16(void)
3338 /* Handle sent messages */
3339 process_sent_messages();
3342 ReleaseThunkLock(&count);
3346 RestoreThunkLock(count);
3347 /* Handle sent messages again */
3348 process_sent_messages();
3353 /***********************************************************************
3354 * RegisterWindowMessageA (USER32.@)
3355 * RegisterWindowMessage (USER.118)
3357 UINT WINAPI RegisterWindowMessageA( LPCSTR str )
3359 UINT ret = GlobalAddAtomA(str);
3360 TRACE("%s, ret=%x\n", str, ret);
3365 /***********************************************************************
3366 * RegisterWindowMessageW (USER32.@)
3368 UINT WINAPI RegisterWindowMessageW( LPCWSTR str )
3370 UINT ret = GlobalAddAtomW(str);
3371 TRACE("%s ret=%x\n", debugstr_w(str), ret);
3375 typedef struct BroadcastParm
3386 static BOOL CALLBACK bcast_childwindow( HWND hw, LPARAM lp )
3388 BroadcastParm *parm = (BroadcastParm*)lp;
3389 DWORD_PTR retval = 0;
3392 if (parm->flags & BSF_IGNORECURRENTTASK && WIN_IsCurrentProcess(hw))
3394 TRACE("Not telling myself %p\n", hw);
3398 /* I don't know 100% for sure if this is what Windows does, but it fits the tests */
3399 if (parm->flags & BSF_QUERY)
3401 TRACE("Telling window %p using SendMessageTimeout\n", hw);
3403 /* Not tested for conflicting flags */
3404 if (parm->flags & BSF_FORCEIFHUNG || parm->flags & BSF_NOHANG)
3405 lresult = SendMessageTimeoutW( hw, parm->msg, parm->wp, parm->lp, SMTO_ABORTIFHUNG, 2000, &retval );
3406 else if (parm->flags & BSF_NOTIMEOUTIFNOTHUNG)
3407 lresult = SendMessageTimeoutW( hw, parm->msg, parm->wp, parm->lp, SMTO_NOTIMEOUTIFNOTHUNG, 2000, &retval );
3409 lresult = SendMessageTimeoutW( hw, parm->msg, parm->wp, parm->lp, SMTO_NORMAL, 2000, &retval );
3411 if (!lresult && GetLastError() == ERROR_TIMEOUT)
3413 WARN("Timed out!\n");
3414 if (!(parm->flags & BSF_FORCEIFHUNG))
3417 if (retval == BROADCAST_QUERY_DENY)
3426 else if (parm->flags & BSF_POSTMESSAGE)
3428 TRACE("Telling window %p using PostMessage\n", hw);
3429 PostMessageW( hw, parm->msg, parm->wp, parm->lp );
3433 TRACE("Telling window %p using SendNotifyMessage\n", hw);
3434 SendNotifyMessageW( hw, parm->msg, parm->wp, parm->lp );
3440 static BOOL CALLBACK bcast_desktop( LPWSTR desktop, LPARAM lp )
3444 BroadcastParm *parm = (BroadcastParm*)lp;
3446 TRACE("desktop: %s\n", debugstr_w( desktop ));
3448 hdesktop = open_winstation_desktop( parm->winsta, desktop, 0, FALSE, DESKTOP_ENUMERATE|DESKTOP_WRITEOBJECTS|STANDARD_RIGHTS_WRITE );
3451 FIXME("Could not open desktop %s\n", debugstr_w(desktop));
3455 ret = EnumDesktopWindows( hdesktop, bcast_childwindow, lp );
3456 CloseDesktop(hdesktop);
3457 TRACE("-->%d\n", ret);
3458 return parm->success;
3461 static BOOL CALLBACK bcast_winsta( LPWSTR winsta, LPARAM lp )
3464 HWINSTA hwinsta = OpenWindowStationW( winsta, FALSE, WINSTA_ENUMDESKTOPS );
3465 TRACE("hwinsta: %p/%s/%08x\n", hwinsta, debugstr_w( winsta ), GetLastError());
3468 ((BroadcastParm *)lp)->winsta = hwinsta;
3469 ret = EnumDesktopsW( hwinsta, bcast_desktop, lp );
3470 CloseWindowStation( hwinsta );
3471 TRACE("-->%d\n", ret);
3475 /***********************************************************************
3476 * BroadcastSystemMessageA (USER32.@)
3477 * BroadcastSystemMessage (USER32.@)
3479 LONG WINAPI BroadcastSystemMessageA( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
3481 return BroadcastSystemMessageExA( flags, recipients, msg, wp, lp, NULL );
3485 /***********************************************************************
3486 * BroadcastSystemMessageW (USER32.@)
3488 LONG WINAPI BroadcastSystemMessageW( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp )
3490 return BroadcastSystemMessageExW( flags, recipients, msg, wp, lp, NULL );
3493 /***********************************************************************
3494 * BroadcastSystemMessageExA (USER32.@)
3496 LONG WINAPI BroadcastSystemMessageExA( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp, PBSMINFO pinfo )
3498 map_wparam_AtoW( msg, &wp, WMCHAR_MAP_NOMAPPING );
3499 return BroadcastSystemMessageExW( flags, recipients, msg, wp, lp, NULL );
3503 /***********************************************************************
3504 * BroadcastSystemMessageExW (USER32.@)
3506 LONG WINAPI BroadcastSystemMessageExW( DWORD flags, LPDWORD recipients, UINT msg, WPARAM wp, LPARAM lp, PBSMINFO pinfo )
3509 DWORD recips = BSM_ALLCOMPONENTS;
3511 static const DWORD all_flags = ( BSF_QUERY | BSF_IGNORECURRENTTASK | BSF_FLUSHDISK | BSF_NOHANG
3512 | BSF_POSTMESSAGE | BSF_FORCEIFHUNG | BSF_NOTIMEOUTIFNOTHUNG
3513 | BSF_ALLOWSFW | BSF_SENDNOTIFYMESSAGE | BSF_RETURNHDESK | BSF_LUID );
3515 TRACE("Flags: %08x, recipients: %p(0x%x), msg: %04x, wparam: %08lx, lparam: %08lx\n", flags, recipients,
3516 (recipients ? *recipients : recips), msg, wp, lp);
3518 if (flags & ~all_flags)
3520 SetLastError(ERROR_INVALID_PARAMETER);
3525 recipients = &recips;
3527 if ( pinfo && flags & BSF_QUERY )
3528 FIXME("Not returning PBSMINFO information yet\n");
3531 parm.recipients = recipients;
3535 parm.success = TRUE;
3537 if (*recipients & BSM_ALLDESKTOPS || *recipients == BSM_ALLCOMPONENTS)
3538 ret = EnumWindowStationsW(bcast_winsta, (LONG_PTR)&parm);
3539 else if (*recipients & BSM_APPLICATIONS)
3541 EnumWindows(bcast_childwindow, (LONG_PTR)&parm);
3545 FIXME("Recipients %08x not supported!\n", *recipients);
3550 /***********************************************************************
3551 * SetMessageQueue (USER32.@)
3553 BOOL WINAPI SetMessageQueue( INT size )
3555 /* now obsolete the message queue will be expanded dynamically as necessary */
3560 /***********************************************************************
3561 * MessageBeep (USER32.@)
3563 BOOL WINAPI MessageBeep( UINT i )
3566 SystemParametersInfoA( SPI_GETBEEP, 0, &active, FALSE );
3567 if (active) USER_Driver->pBeep();
3572 /***********************************************************************
3573 * SetTimer (USER32.@)
3575 UINT_PTR WINAPI SetTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
3578 WNDPROC winproc = 0;
3580 if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, NULL );
3582 SERVER_START_REQ( set_win_timer )
3584 req->win = wine_server_user_handle( hwnd );
3585 req->msg = WM_TIMER;
3587 req->rate = max( timeout, SYS_TIMER_RATE );
3588 req->lparam = (ULONG_PTR)winproc;
3589 if (!wine_server_call_err( req ))
3592 if (!ret) ret = TRUE;
3598 TRACE("Added %p %lx %p timeout %d\n", hwnd, id, winproc, timeout );
3603 /***********************************************************************
3604 * SetSystemTimer (USER32.@)
3606 UINT_PTR WINAPI SetSystemTimer( HWND hwnd, UINT_PTR id, UINT timeout, TIMERPROC proc )
3609 WNDPROC winproc = 0;
3611 if (proc) winproc = WINPROC_AllocProc( (WNDPROC)proc, NULL );
3613 SERVER_START_REQ( set_win_timer )
3615 req->win = wine_server_user_handle( hwnd );
3616 req->msg = WM_SYSTIMER;
3618 req->rate = max( timeout, SYS_TIMER_RATE );
3619 req->lparam = (ULONG_PTR)winproc;
3620 if (!wine_server_call_err( req ))
3623 if (!ret) ret = TRUE;
3629 TRACE("Added %p %lx %p timeout %d\n", hwnd, id, winproc, timeout );
3634 /***********************************************************************
3635 * KillTimer (USER32.@)
3637 BOOL WINAPI KillTimer( HWND hwnd, UINT_PTR id )
3641 SERVER_START_REQ( kill_win_timer )
3643 req->win = wine_server_user_handle( hwnd );
3644 req->msg = WM_TIMER;
3646 ret = !wine_server_call_err( req );
3653 /***********************************************************************
3654 * KillSystemTimer (USER32.@)
3656 BOOL WINAPI KillSystemTimer( HWND hwnd, UINT_PTR id )
3660 SERVER_START_REQ( kill_win_timer )
3662 req->win = wine_server_user_handle( hwnd );
3663 req->msg = WM_SYSTIMER;
3665 ret = !wine_server_call_err( req );
3672 /**********************************************************************
3673 * GetGUIThreadInfo (USER32.@)
3675 BOOL WINAPI GetGUIThreadInfo( DWORD id, GUITHREADINFO *info )
3679 SERVER_START_REQ( get_thread_input )
3682 if ((ret = !wine_server_call_err( req )))
3685 info->hwndActive = wine_server_ptr_handle( reply->active );
3686 info->hwndFocus = wine_server_ptr_handle( reply->focus );
3687 info->hwndCapture = wine_server_ptr_handle( reply->capture );
3688 info->hwndMenuOwner = wine_server_ptr_handle( reply->menu_owner );
3689 info->hwndMoveSize = wine_server_ptr_handle( reply->move_size );
3690 info->hwndCaret = wine_server_ptr_handle( reply->caret );
3691 info->rcCaret.left = reply->rect.left;
3692 info->rcCaret.top = reply->rect.top;
3693 info->rcCaret.right = reply->rect.right;
3694 info->rcCaret.bottom = reply->rect.bottom;
3695 if (reply->menu_owner) info->flags |= GUI_INMENUMODE;
3696 if (reply->move_size) info->flags |= GUI_INMOVESIZE;
3697 if (reply->caret) info->flags |= GUI_CARETBLINKING;
3705 /******************************************************************
3706 * IsHungAppWindow (USER32.@)
3709 BOOL WINAPI IsHungAppWindow( HWND hWnd )
3713 SERVER_START_REQ( is_window_hung )
3715 req->win = wine_server_user_handle( hWnd );
3716 ret = !wine_server_call_err( req ) && reply->is_hung;
3722 /******************************************************************
3723 * ChangeWindowMessageFilter (USER32.@)
3725 BOOL WINAPI ChangeWindowMessageFilter( UINT message, DWORD flag )
3727 FIXME( "%x %08x\n", message, flag );