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
55 #define MAX_SENDMSG_RECURSION 64
57 #define SYS_TIMER_RATE 55 /* min. timer rate in ms (actually 54.925)*/
59 /* description of the data fields that need to be packed along with a sent message */
63 const void *data[MAX_PACK_COUNT];
64 size_t size[MAX_PACK_COUNT];
67 /* info about the message currently being received by the current thread */
68 struct received_message_info
70 enum message_type type;
72 UINT flags; /* InSendMessageEx return flags */
75 /* structure to group all parameters for sent messages of the various kinds */
76 struct send_message_info
78 enum message_type type;
84 UINT flags; /* flags for SendMessageTimeout */
85 UINT timeout; /* timeout for SendMessageTimeout */
86 SENDASYNCPROC callback; /* callback function for SendMessageCallback */
87 ULONG_PTR data; /* callback data */
88 enum wm_char_mapping wm_char;
92 /* Message class descriptor */
93 static const WCHAR messageW[] = {'M','e','s','s','a','g','e',0};
94 static LRESULT WINAPI message_winproc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam );
95 const struct builtin_class_descr MESSAGE_builtin_class =
99 NULL, /* procA (winproc is Unicode only) */
100 message_winproc, /* procW */
102 IDC_ARROW, /* cursor */
108 /* flag for messages that contain pointers */
109 /* 32 messages per entry, messages 0..31 map to bits 0..31 */
111 #define SET(msg) (1 << ((msg) & 31))
113 static const unsigned int message_pointer_flags[] =
116 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) |
117 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
119 SET(WM_GETMINMAXINFO) | SET(WM_DRAWITEM) | SET(WM_MEASUREITEM) | SET(WM_DELETEITEM) |
122 SET(WM_WINDOWPOSCHANGING) | SET(WM_WINDOWPOSCHANGED) | SET(WM_COPYDATA) |
123 SET(WM_NOTIFY) | SET(WM_HELP),
125 SET(WM_STYLECHANGING) | SET(WM_STYLECHANGED),
127 SET(WM_NCCREATE) | SET(WM_NCCALCSIZE) | SET(WM_GETDLGCODE),
129 SET(EM_GETSEL) | SET(EM_GETRECT) | SET(EM_SETRECT) | SET(EM_SETRECTNP),
131 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETTABSTOPS),
133 SET(SBM_GETRANGE) | SET(SBM_SETSCROLLINFO) | SET(SBM_GETSCROLLINFO) | SET(SBM_GETSCROLLBARINFO),
139 SET(CB_GETEDITSEL) | SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) |
140 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) |
141 SET(CB_GETDROPPEDCONTROLRECT) | SET(CB_FINDSTRINGEXACT),
145 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_SELECTSTRING) |
146 SET(LB_DIR) | SET(LB_FINDSTRING) |
147 SET(LB_GETSELITEMS) | SET(LB_SETTABSTOPS) | SET(LB_ADDFILE) | SET(LB_GETITEMRECT),
149 SET(LB_FINDSTRINGEXACT),
155 SET(WM_NEXTMENU) | SET(WM_SIZING) | SET(WM_MOVING) | SET(WM_DEVICECHANGE),
157 SET(WM_MDICREATE) | SET(WM_MDIGETACTIVE) | SET(WM_DROPOBJECT) |
158 SET(WM_QUERYDROPOBJECT) | SET(WM_DRAGLOOP) | SET(WM_DRAGSELECT) | SET(WM_DRAGMOVE),
172 SET(WM_ASKCBFORMATNAME)
175 /* flags for messages that contain Unicode strings */
176 static const unsigned int message_unicode_flags[] =
179 SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) | SET(WM_GETTEXTLENGTH) |
180 SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
192 SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETPASSWORDCHAR),
196 SET(WM_CHAR) | SET(WM_DEADCHAR) | SET(WM_SYSCHAR) | SET(WM_SYSDEADCHAR),
200 SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) | SET(CB_GETLBTEXTLEN) |
201 SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) | SET(CB_FINDSTRINGEXACT),
205 SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_GETTEXTLEN) |
206 SET(LB_SELECTSTRING) | SET(LB_DIR) | SET(LB_FINDSTRING) | SET(LB_ADDFILE),
208 SET(LB_FINDSTRINGEXACT),
230 SET(WM_PAINTCLIPBOARD) | SET(WM_SIZECLIPBOARD) | SET(WM_ASKCBFORMATNAME)
233 /* check whether a given message type includes pointers */
234 static inline int is_pointer_message( UINT message )
236 if (message >= 8*sizeof(message_pointer_flags)) return FALSE;
237 return (message_pointer_flags[message / 32] & SET(message)) != 0;
240 /* check whether a given message type contains Unicode (or ASCII) chars */
241 static inline int is_unicode_message( UINT message )
243 if (message >= 8*sizeof(message_unicode_flags)) return FALSE;
244 return (message_unicode_flags[message / 32] & SET(message)) != 0;
249 /* add a data field to a packed message */
250 static inline void push_data( struct packed_message *data, const void *ptr, size_t size )
252 data->data[data->count] = ptr;
253 data->size[data->count] = size;
257 /* add a string to a packed message */
258 static inline void push_string( struct packed_message *data, LPCWSTR str )
260 push_data( data, str, (strlenW(str) + 1) * sizeof(WCHAR) );
263 /* make sure that the buffer contains a valid null-terminated Unicode string */
264 static inline BOOL check_string( LPCWSTR str, size_t size )
266 for (size /= sizeof(WCHAR); size; size--, str++)
267 if (!*str) return TRUE;
271 /* make sure that there is space for 'size' bytes in buffer, growing it if needed */
272 static inline void *get_buffer_space( void **buffer, size_t size )
278 if (!(ret = HeapReAlloc( GetProcessHeap(), 0, *buffer, size )))
279 HeapFree( GetProcessHeap(), 0, *buffer );
281 else ret = HeapAlloc( GetProcessHeap(), 0, size );
287 /* check whether a combobox expects strings or ids in CB_ADDSTRING/CB_INSERTSTRING */
288 static inline BOOL combobox_has_strings( HWND hwnd )
290 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
291 return (!(style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) || (style & CBS_HASSTRINGS));
294 /* check whether a listbox expects strings or ids in LB_ADDSTRING/LB_INSERTSTRING */
295 static inline BOOL listbox_has_strings( HWND hwnd )
297 DWORD style = GetWindowLongA( hwnd, GWL_STYLE );
298 return (!(style & (LBS_OWNERDRAWFIXED | LBS_OWNERDRAWVARIABLE)) || (style & LBS_HASSTRINGS));
301 /* check whether message is in the range of keyboard messages */
302 static inline BOOL is_keyboard_message( UINT message )
304 return (message >= WM_KEYFIRST && message <= WM_KEYLAST);
307 /* check whether message is in the range of mouse messages */
308 static inline BOOL is_mouse_message( UINT message )
310 return ((message >= WM_NCMOUSEFIRST && message <= WM_NCMOUSELAST) ||
311 (message >= WM_MOUSEFIRST && message <= WM_MOUSELAST));
314 /* check whether message matches the specified hwnd filter */
315 static inline BOOL check_hwnd_filter( const MSG *msg, HWND hwnd_filter )
317 if (!hwnd_filter || hwnd_filter == GetDesktopWindow()) return TRUE;
318 return (msg->hwnd == hwnd_filter || IsChild( hwnd_filter, msg->hwnd ));
321 /* check for pending WM_CHAR message with DBCS trailing byte */
322 static inline BOOL get_pending_wmchar( MSG *msg, UINT first, UINT last, BOOL remove )
324 struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
326 if (!data || !data->get_msg.message) return FALSE;
327 if ((first || last) && (first > WM_CHAR || last < WM_CHAR)) return FALSE;
328 if (!msg) return FALSE;
329 *msg = data->get_msg;
330 if (remove) data->get_msg.message = 0;
335 /***********************************************************************
338 * Window procedure for "Message" windows (HWND_MESSAGE parent).
340 static LRESULT WINAPI message_winproc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam )
342 if (message == WM_NCCREATE) return TRUE;
343 return 0; /* all other messages are ignored */
347 /***********************************************************************
348 * broadcast_message_callback
350 * Helper callback for broadcasting messages.
352 static BOOL CALLBACK broadcast_message_callback( HWND hwnd, LPARAM lparam )
354 struct send_message_info *info = (struct send_message_info *)lparam;
355 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & (WS_POPUP|WS_CAPTION))) return TRUE;
359 SendMessageTimeoutW( hwnd, info->msg, info->wparam, info->lparam,
360 info->flags, info->timeout, NULL );
363 SendMessageTimeoutA( hwnd, info->msg, info->wparam, info->lparam,
364 info->flags, info->timeout, NULL );
367 SendNotifyMessageW( hwnd, info->msg, info->wparam, info->lparam );
370 SendMessageCallbackW( hwnd, info->msg, info->wparam, info->lparam,
371 info->callback, info->data );
374 PostMessageW( hwnd, info->msg, info->wparam, info->lparam );
377 ERR( "bad type %d\n", info->type );
384 /***********************************************************************
387 * Convert the wparam of an ASCII message to Unicode.
389 BOOL map_wparam_AtoW( UINT message, WPARAM *wparam, enum wm_char_mapping mapping )
398 /* WM_CHAR is magic: a DBCS char can be sent/posted as two consecutive WM_CHAR
399 * messages, in which case the first char is stored, and the conversion
400 * to Unicode only takes place once the second char is sent/posted.
402 if (mapping != WMCHAR_MAP_NOMAPPING)
404 struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
405 BYTE low = LOBYTE(*wparam);
410 ch[1] = HIBYTE(*wparam);
411 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
412 TRACE( "map %02x,%02x -> %04x mapping %u\n", (BYTE)ch[0], (BYTE)ch[1], wch[0], mapping );
413 if (data) data->lead_byte[mapping] = 0;
415 else if (data && data->lead_byte[mapping])
417 ch[0] = data->lead_byte[mapping];
419 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
420 TRACE( "map stored %02x,%02x -> %04x mapping %u\n", (BYTE)ch[0], (BYTE)ch[1], wch[0], mapping );
421 data->lead_byte[mapping] = 0;
423 else if (!IsDBCSLeadByte( low ))
426 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 1 );
427 TRACE( "map %02x -> %04x\n", (BYTE)ch[0], wch[0] );
428 if (data) data->lead_byte[mapping] = 0;
430 else /* store it and wait for trail byte */
434 if (!(data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) )))
436 get_user_thread_info()->wmchar_data = data;
438 TRACE( "storing lead byte %02x mapping %u\n", low, mapping );
439 data->lead_byte[mapping] = low;
442 *wparam = MAKEWPARAM(wch[0], wch[1]);
445 /* else fall through */
447 case EM_SETPASSWORDCHAR:
452 ch[0] = LOBYTE(*wparam);
453 ch[1] = HIBYTE(*wparam);
454 RtlMultiByteToUnicodeN( wch, sizeof(wch), NULL, ch, 2 );
455 *wparam = MAKEWPARAM(wch[0], wch[1]);
458 ch[0] = HIBYTE(*wparam);
459 ch[1] = LOBYTE(*wparam);
460 if (ch[0]) RtlMultiByteToUnicodeN( wch, sizeof(wch[0]), NULL, ch, 2 );
461 else RtlMultiByteToUnicodeN( wch, sizeof(wch[0]), NULL, ch + 1, 1 );
462 *wparam = MAKEWPARAM(wch[0], HIWORD(*wparam));
469 /***********************************************************************
472 * Convert the wparam of a Unicode message to ASCII.
474 static void map_wparam_WtoA( MSG *msg, BOOL remove )
483 if (!HIWORD(msg->wParam))
485 wch[0] = LOWORD(msg->wParam);
487 RtlUnicodeToMultiByteN( (LPSTR)ch, 2, &len, wch, sizeof(wch[0]) );
488 if (len == 2) /* DBCS char */
490 struct wm_char_mapping_data *data = get_user_thread_info()->wmchar_data;
493 if (!(data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) ))) return;
494 get_user_thread_info()->wmchar_data = data;
498 data->get_msg = *msg;
499 data->get_msg.wParam = ch[1];
505 /* else fall through */
507 case EM_SETPASSWORDCHAR:
512 wch[0] = LOWORD(msg->wParam);
513 wch[1] = HIWORD(msg->wParam);
515 RtlUnicodeToMultiByteN( (LPSTR)ch, 2, NULL, wch, sizeof(wch) );
516 msg->wParam = MAKEWPARAM( ch[0] | (ch[1] << 8), 0 );
519 wch[0] = LOWORD(msg->wParam);
521 RtlUnicodeToMultiByteN( (LPSTR)ch, 2, &len, wch, sizeof(wch[0]) );
523 msg->wParam = MAKEWPARAM( (ch[0] << 8) | ch[1], HIWORD(msg->wParam) );
525 msg->wParam = MAKEWPARAM( ch[0], HIWORD(msg->wParam) );
531 /***********************************************************************
534 * Pack a message for sending to another process.
535 * Return the size of the data we expect in the message reply.
536 * Set data->count to -1 if there is an error.
538 static size_t pack_message( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
539 struct packed_message *data )
547 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
548 push_data( data, cs, sizeof(*cs) );
549 if (HIWORD(cs->lpszName)) push_string( data, cs->lpszName );
550 if (HIWORD(cs->lpszClass)) push_string( data, cs->lpszClass );
554 case WM_ASKCBFORMATNAME:
555 return wparam * sizeof(WCHAR);
556 case WM_WININICHANGE:
557 if (lparam) push_string(data, (LPWSTR)lparam );
560 case WM_DEVMODECHANGE:
565 push_string( data, (LPWSTR)lparam );
567 case WM_GETMINMAXINFO:
568 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
569 return sizeof(MINMAXINFO);
571 push_data( data, (DRAWITEMSTRUCT *)lparam, sizeof(DRAWITEMSTRUCT) );
574 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
575 return sizeof(MEASUREITEMSTRUCT);
577 push_data( data, (DELETEITEMSTRUCT *)lparam, sizeof(DELETEITEMSTRUCT) );
580 push_data( data, (COMPAREITEMSTRUCT *)lparam, sizeof(COMPAREITEMSTRUCT) );
582 case WM_WINDOWPOSCHANGING:
583 case WM_WINDOWPOSCHANGED:
584 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
585 return sizeof(WINDOWPOS);
588 COPYDATASTRUCT *cp = (COPYDATASTRUCT *)lparam;
589 push_data( data, cp, sizeof(*cp) );
590 if (cp->lpData) push_data( data, cp->lpData, cp->cbData );
594 /* WM_NOTIFY cannot be sent across processes (MSDN) */
598 push_data( data, (HELPINFO *)lparam, sizeof(HELPINFO) );
600 case WM_STYLECHANGING:
601 case WM_STYLECHANGED:
602 push_data( data, (STYLESTRUCT *)lparam, sizeof(STYLESTRUCT) );
607 push_data( data, (RECT *)lparam, sizeof(RECT) );
612 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
613 push_data( data, nc, sizeof(*nc) );
614 push_data( data, nc->lppos, sizeof(*nc->lppos) );
615 return sizeof(*nc) + sizeof(*nc->lppos);
618 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
620 case SBM_SETSCROLLINFO:
621 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
623 case SBM_GETSCROLLINFO:
624 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
625 return sizeof(SCROLLINFO);
626 case SBM_GETSCROLLBARINFO:
628 const SCROLLBARINFO *info = (const SCROLLBARINFO *)lparam;
629 size_t size = min( info->cbSize, sizeof(SCROLLBARINFO) );
630 push_data( data, info, size );
638 if (wparam) size += sizeof(DWORD);
639 if (lparam) size += sizeof(DWORD);
644 case CB_GETDROPPEDCONTROLRECT:
648 push_data( data, (RECT *)lparam, sizeof(RECT) );
652 WORD *pw = (WORD *)lparam;
653 push_data( data, pw, sizeof(*pw) );
654 return *pw * sizeof(WCHAR);
658 if (wparam) push_data( data, (UINT *)lparam, sizeof(UINT) * wparam );
661 case CB_INSERTSTRING:
663 case CB_FINDSTRINGEXACT:
664 case CB_SELECTSTRING:
665 if (combobox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
668 if (!combobox_has_strings( hwnd )) return sizeof(ULONG_PTR);
669 return (SendMessageW( hwnd, CB_GETLBTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
671 case LB_INSERTSTRING:
673 case LB_FINDSTRINGEXACT:
674 case LB_SELECTSTRING:
675 if (listbox_has_strings( hwnd )) push_string( data, (LPWSTR)lparam );
678 if (!listbox_has_strings( hwnd )) return sizeof(ULONG_PTR);
679 return (SendMessageW( hwnd, LB_GETTEXTLEN, wparam, 0 ) + 1) * sizeof(WCHAR);
681 return wparam * sizeof(UINT);
683 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
684 return sizeof(MDINEXTMENU);
687 push_data( data, (RECT *)lparam, sizeof(RECT) );
691 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
692 push_data( data, cs, sizeof(*cs) );
693 if (HIWORD(cs->szTitle)) push_string( data, cs->szTitle );
694 if (HIWORD(cs->szClass)) push_string( data, cs->szClass );
697 case WM_MDIGETACTIVE:
698 if (lparam) return sizeof(BOOL);
700 case WM_DEVICECHANGE:
702 DEV_BROADCAST_HDR *header = (DEV_BROADCAST_HDR *)lparam;
703 push_data( data, header, header->dbch_size );
706 case WM_WINE_SETWINDOWPOS:
707 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
709 case WM_WINE_KEYBOARD_LL_HOOK:
711 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
712 push_data( data, h_extra, sizeof(*h_extra) );
713 push_data( data, (LPVOID)h_extra->lparam, sizeof(KBDLLHOOKSTRUCT) );
716 case WM_WINE_MOUSE_LL_HOOK:
718 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
719 push_data( data, h_extra, sizeof(*h_extra) );
720 push_data( data, (LPVOID)h_extra->lparam, sizeof(MSLLHOOKSTRUCT) );
724 if (wparam <= 1) return 0;
725 FIXME( "WM_NCPAINT hdc packing not supported yet\n" );
729 if (!wparam) return 0;
732 /* these contain an HFONT */
735 /* these contain an HDC */
737 case WM_ICONERASEBKGND:
738 case WM_CTLCOLORMSGBOX:
739 case WM_CTLCOLOREDIT:
740 case WM_CTLCOLORLISTBOX:
743 case WM_CTLCOLORSCROLLBAR:
744 case WM_CTLCOLORSTATIC:
747 /* these contain an HGLOBAL */
748 case WM_PAINTCLIPBOARD:
749 case WM_SIZECLIPBOARD:
750 /* these contain HICON */
753 case WM_QUERYDRAGICON:
754 case WM_QUERYPARKICON:
755 /* these contain pointers */
757 case WM_QUERYDROPOBJECT:
761 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
769 /***********************************************************************
772 * Unpack a message received from another process.
774 static BOOL unpack_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
775 void **buffer, size_t size )
784 CREATESTRUCTW *cs = *buffer;
785 WCHAR *str = (WCHAR *)(cs + 1);
786 if (size < sizeof(*cs)) return FALSE;
788 if (HIWORD(cs->lpszName))
790 if (!check_string( str, size )) return FALSE;
792 size -= (strlenW(str) + 1) * sizeof(WCHAR);
793 str += strlenW(str) + 1;
795 if (HIWORD(cs->lpszClass))
797 if (!check_string( str, size )) return FALSE;
803 case WM_ASKCBFORMATNAME:
804 if (!get_buffer_space( buffer, (*wparam * sizeof(WCHAR)) )) return FALSE;
806 case WM_WININICHANGE:
807 if (!*lparam) return TRUE;
810 case WM_DEVMODECHANGE:
815 if (!check_string( *buffer, size )) return FALSE;
817 case WM_GETMINMAXINFO:
818 minsize = sizeof(MINMAXINFO);
821 minsize = sizeof(DRAWITEMSTRUCT);
824 minsize = sizeof(MEASUREITEMSTRUCT);
827 minsize = sizeof(DELETEITEMSTRUCT);
830 minsize = sizeof(COMPAREITEMSTRUCT);
832 case WM_WINDOWPOSCHANGING:
833 case WM_WINDOWPOSCHANGED:
834 case WM_WINE_SETWINDOWPOS:
835 minsize = sizeof(WINDOWPOS);
839 COPYDATASTRUCT *cp = *buffer;
840 if (size < sizeof(*cp)) return FALSE;
843 minsize = sizeof(*cp) + cp->cbData;
849 /* WM_NOTIFY cannot be sent across processes (MSDN) */
852 minsize = sizeof(HELPINFO);
854 case WM_STYLECHANGING:
855 case WM_STYLECHANGED:
856 minsize = sizeof(STYLESTRUCT);
859 if (!*wparam) minsize = sizeof(RECT);
862 NCCALCSIZE_PARAMS *nc = *buffer;
863 if (size < sizeof(*nc) + sizeof(*nc->lppos)) return FALSE;
864 nc->lppos = (WINDOWPOS *)(nc + 1);
868 if (!*lparam) return TRUE;
869 minsize = sizeof(MSG);
871 case SBM_SETSCROLLINFO:
872 minsize = sizeof(SCROLLINFO);
874 case SBM_GETSCROLLINFO:
875 if (!get_buffer_space( buffer, sizeof(SCROLLINFO ))) return FALSE;
877 case SBM_GETSCROLLBARINFO:
878 if (!get_buffer_space( buffer, sizeof(SCROLLBARINFO ))) return FALSE;
883 if (*wparam || *lparam)
885 if (!get_buffer_space( buffer, 2*sizeof(DWORD) )) return FALSE;
886 if (*wparam) *wparam = (WPARAM)*buffer;
887 if (*lparam) *lparam = (LPARAM)((DWORD *)*buffer + 1);
892 case CB_GETDROPPEDCONTROLRECT:
893 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
897 minsize = sizeof(RECT);
902 if (size < sizeof(WORD)) return FALSE;
903 len = *(WORD *)*buffer;
904 if (!get_buffer_space( buffer, (len + 1) * sizeof(WCHAR) )) return FALSE;
905 *lparam = (LPARAM)*buffer + sizeof(WORD); /* don't erase WORD at start of buffer */
910 if (!*wparam) return TRUE;
911 minsize = *wparam * sizeof(UINT);
914 case CB_INSERTSTRING:
916 case CB_FINDSTRINGEXACT:
917 case CB_SELECTSTRING:
919 case LB_INSERTSTRING:
921 case LB_FINDSTRINGEXACT:
922 case LB_SELECTSTRING:
923 if (!*buffer) return TRUE;
924 if (!check_string( *buffer, size )) return FALSE;
928 size = sizeof(ULONG_PTR);
929 if (combobox_has_strings( hwnd ))
930 size = (SendMessageW( hwnd, CB_GETLBTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
931 if (!get_buffer_space( buffer, size )) return FALSE;
936 size = sizeof(ULONG_PTR);
937 if (listbox_has_strings( hwnd ))
938 size = (SendMessageW( hwnd, LB_GETTEXTLEN, *wparam, 0 ) + 1) * sizeof(WCHAR);
939 if (!get_buffer_space( buffer, size )) return FALSE;
943 if (!get_buffer_space( buffer, *wparam * sizeof(UINT) )) return FALSE;
946 minsize = sizeof(MDINEXTMENU);
947 if (!get_buffer_space( buffer, sizeof(MDINEXTMENU) )) return FALSE;
951 minsize = sizeof(RECT);
952 if (!get_buffer_space( buffer, sizeof(RECT) )) return FALSE;
956 MDICREATESTRUCTW *cs = *buffer;
957 WCHAR *str = (WCHAR *)(cs + 1);
958 if (size < sizeof(*cs)) return FALSE;
960 if (HIWORD(cs->szTitle))
962 if (!check_string( str, size )) return FALSE;
964 size -= (strlenW(str) + 1) * sizeof(WCHAR);
965 str += strlenW(str) + 1;
967 if (HIWORD(cs->szClass))
969 if (!check_string( str, size )) return FALSE;
974 case WM_MDIGETACTIVE:
975 if (!*lparam) return TRUE;
976 if (!get_buffer_space( buffer, sizeof(BOOL) )) return FALSE;
978 case WM_DEVICECHANGE:
979 minsize = sizeof(DEV_BROADCAST_HDR);
981 case WM_WINE_KEYBOARD_LL_HOOK:
982 case WM_WINE_MOUSE_LL_HOOK:
984 struct hook_extra_info *h_extra = (struct hook_extra_info *)*buffer;
986 minsize = sizeof(struct hook_extra_info) +
987 (message == WM_WINE_KEYBOARD_LL_HOOK ? sizeof(KBDLLHOOKSTRUCT)
988 : sizeof(MSLLHOOKSTRUCT));
989 if (size < minsize) return FALSE;
990 h_extra->lparam = (LPARAM)(h_extra + 1);
994 if (*wparam <= 1) return TRUE;
995 FIXME( "WM_NCPAINT hdc unpacking not supported\n" );
998 if (!*wparam) return TRUE;
1001 /* these contain an HFONT */
1004 /* these contain an HDC */
1006 case WM_ICONERASEBKGND:
1007 case WM_CTLCOLORMSGBOX:
1008 case WM_CTLCOLOREDIT:
1009 case WM_CTLCOLORLISTBOX:
1010 case WM_CTLCOLORBTN:
1011 case WM_CTLCOLORDLG:
1012 case WM_CTLCOLORSCROLLBAR:
1013 case WM_CTLCOLORSTATIC:
1015 case WM_PRINTCLIENT:
1016 /* these contain an HGLOBAL */
1017 case WM_PAINTCLIPBOARD:
1018 case WM_SIZECLIPBOARD:
1019 /* these contain HICON */
1022 case WM_QUERYDRAGICON:
1023 case WM_QUERYPARKICON:
1024 /* these contain pointers */
1026 case WM_QUERYDROPOBJECT:
1030 FIXME( "msg %x (%s) not supported yet\n", message, SPY_GetMsgName(message, hwnd) );
1034 return TRUE; /* message doesn't need any unpacking */
1037 /* default exit for most messages: check minsize and store buffer in lparam */
1038 if (size < minsize) return FALSE;
1039 *lparam = (LPARAM)*buffer;
1044 /***********************************************************************
1047 * Pack a reply to a message for sending to another process.
1049 static void pack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
1050 LRESULT res, struct packed_message *data )
1057 push_data( data, (CREATESTRUCTW *)lparam, sizeof(CREATESTRUCTW) );
1062 push_data( data, (WCHAR *)lparam, (res + 1) * sizeof(WCHAR) );
1064 case WM_GETMINMAXINFO:
1065 push_data( data, (MINMAXINFO *)lparam, sizeof(MINMAXINFO) );
1067 case WM_MEASUREITEM:
1068 push_data( data, (MEASUREITEMSTRUCT *)lparam, sizeof(MEASUREITEMSTRUCT) );
1070 case WM_WINDOWPOSCHANGING:
1071 case WM_WINDOWPOSCHANGED:
1072 push_data( data, (WINDOWPOS *)lparam, sizeof(WINDOWPOS) );
1075 if (lparam) push_data( data, (MSG *)lparam, sizeof(MSG) );
1077 case SBM_GETSCROLLINFO:
1078 push_data( data, (SCROLLINFO *)lparam, sizeof(SCROLLINFO) );
1081 case LB_GETITEMRECT:
1082 case CB_GETDROPPEDCONTROLRECT:
1085 push_data( data, (RECT *)lparam, sizeof(RECT) );
1089 WORD *ptr = (WORD *)lparam;
1090 push_data( data, ptr, ptr[-1] * sizeof(WCHAR) );
1093 case LB_GETSELITEMS:
1094 push_data( data, (UINT *)lparam, wparam * sizeof(UINT) );
1096 case WM_MDIGETACTIVE:
1097 if (lparam) push_data( data, (BOOL *)lparam, sizeof(BOOL) );
1101 push_data( data, (RECT *)lparam, sizeof(RECT) );
1104 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
1105 push_data( data, nc, sizeof(*nc) );
1106 push_data( data, nc->lppos, sizeof(*nc->lppos) );
1112 if (wparam) push_data( data, (DWORD *)wparam, sizeof(DWORD) );
1113 if (lparam) push_data( data, (DWORD *)lparam, sizeof(DWORD) );
1116 push_data( data, (MDINEXTMENU *)lparam, sizeof(MDINEXTMENU) );
1119 push_data( data, (MDICREATESTRUCTW *)lparam, sizeof(MDICREATESTRUCTW) );
1121 case WM_ASKCBFORMATNAME:
1122 push_data( data, (WCHAR *)lparam, (strlenW((WCHAR *)lparam) + 1) * sizeof(WCHAR) );
1128 /***********************************************************************
1131 * Unpack a message reply received from another process.
1133 static void unpack_reply( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam,
1134 void *buffer, size_t size )
1141 CREATESTRUCTW *cs = (CREATESTRUCTW *)lparam;
1142 LPCWSTR name = cs->lpszName, class = cs->lpszClass;
1143 memcpy( cs, buffer, min( sizeof(*cs), size ));
1144 cs->lpszName = name; /* restore the original pointers */
1145 cs->lpszClass = class;
1149 case WM_ASKCBFORMATNAME:
1150 memcpy( (WCHAR *)lparam, buffer, min( wparam*sizeof(WCHAR), size ));
1152 case WM_GETMINMAXINFO:
1153 memcpy( (MINMAXINFO *)lparam, buffer, min( sizeof(MINMAXINFO), size ));
1155 case WM_MEASUREITEM:
1156 memcpy( (MEASUREITEMSTRUCT *)lparam, buffer, min( sizeof(MEASUREITEMSTRUCT), size ));
1158 case WM_WINDOWPOSCHANGING:
1159 case WM_WINDOWPOSCHANGED:
1160 memcpy( (WINDOWPOS *)lparam, buffer, min( sizeof(WINDOWPOS), size ));
1163 if (lparam) memcpy( (MSG *)lparam, buffer, min( sizeof(MSG), size ));
1165 case SBM_GETSCROLLINFO:
1166 memcpy( (SCROLLINFO *)lparam, buffer, min( sizeof(SCROLLINFO), size ));
1168 case SBM_GETSCROLLBARINFO:
1169 memcpy( (SCROLLBARINFO *)lparam, buffer, min( sizeof(SCROLLBARINFO), size ));
1172 case CB_GETDROPPEDCONTROLRECT:
1173 case LB_GETITEMRECT:
1176 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1179 size = min( size, (size_t)*(WORD *)lparam );
1180 memcpy( (WCHAR *)lparam, buffer, size );
1182 case LB_GETSELITEMS:
1183 memcpy( (UINT *)lparam, buffer, min( wparam*sizeof(UINT), size ));
1187 memcpy( (WCHAR *)lparam, buffer, size );
1190 memcpy( (MDINEXTMENU *)lparam, buffer, min( sizeof(MDINEXTMENU), size ));
1192 case WM_MDIGETACTIVE:
1193 if (lparam) memcpy( (BOOL *)lparam, buffer, min( sizeof(BOOL), size ));
1197 memcpy( (RECT *)lparam, buffer, min( sizeof(RECT), size ));
1200 NCCALCSIZE_PARAMS *nc = (NCCALCSIZE_PARAMS *)lparam;
1201 WINDOWPOS *wp = nc->lppos;
1202 memcpy( nc, buffer, min( sizeof(*nc), size ));
1203 if (size > sizeof(*nc))
1205 size -= sizeof(*nc);
1206 memcpy( wp, (NCCALCSIZE_PARAMS*)buffer + 1, min( sizeof(*wp), size ));
1208 nc->lppos = wp; /* restore the original pointer */
1216 memcpy( (DWORD *)wparam, buffer, min( sizeof(DWORD), size ));
1217 if (size <= sizeof(DWORD)) break;
1218 size -= sizeof(DWORD);
1219 buffer = (DWORD *)buffer + 1;
1221 if (lparam) memcpy( (DWORD *)lparam, buffer, min( sizeof(DWORD), size ));
1225 MDICREATESTRUCTW *cs = (MDICREATESTRUCTW *)lparam;
1226 LPCWSTR title = cs->szTitle, class = cs->szClass;
1227 memcpy( cs, buffer, min( sizeof(*cs), size ));
1228 cs->szTitle = title; /* restore the original pointers */
1229 cs->szClass = class;
1233 ERR( "should not happen: unexpected message %x\n", message );
1239 /***********************************************************************
1242 * Send a reply to a sent message.
1244 static void reply_message( struct received_message_info *info, LRESULT result, BOOL remove )
1246 struct packed_message data;
1247 int i, replied = info->flags & ISMEX_REPLIED;
1249 if (info->flags & ISMEX_NOTIFY) return; /* notify messages don't get replies */
1250 if (!remove && replied) return; /* replied already */
1253 info->flags |= ISMEX_REPLIED;
1255 if (info->type == MSG_OTHER_PROCESS && !replied)
1257 pack_reply( info->msg.hwnd, info->msg.message, info->msg.wParam,
1258 info->msg.lParam, result, &data );
1261 SERVER_START_REQ( reply_message )
1263 req->result = result;
1264 req->remove = remove;
1265 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
1266 wine_server_call( req );
1272 /***********************************************************************
1273 * handle_internal_message
1275 * Handle an internal Wine message instead of calling the window proc.
1277 static LRESULT handle_internal_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
1281 case WM_WINE_DESTROYWINDOW:
1282 return WIN_DestroyWindow( hwnd );
1283 case WM_WINE_SETWINDOWPOS:
1284 if (is_desktop_window( hwnd )) return 0;
1285 return USER_SetWindowPos( (WINDOWPOS *)lparam );
1286 case WM_WINE_SHOWWINDOW:
1287 if (is_desktop_window( hwnd )) return 0;
1288 return ShowWindow( hwnd, wparam );
1289 case WM_WINE_SETPARENT:
1290 if (is_desktop_window( hwnd )) return 0;
1291 return (LRESULT)SetParent( hwnd, (HWND)wparam );
1292 case WM_WINE_SETWINDOWLONG:
1293 return WIN_SetWindowLong( hwnd, (short)LOWORD(wparam), HIWORD(wparam), lparam, TRUE );
1294 case WM_WINE_ENABLEWINDOW:
1295 if (is_desktop_window( hwnd )) return 0;
1296 return EnableWindow( hwnd, wparam );
1297 case WM_WINE_SETACTIVEWINDOW:
1298 if (is_desktop_window( hwnd )) return 0;
1299 return (LRESULT)SetActiveWindow( (HWND)wparam );
1300 case WM_WINE_KEYBOARD_LL_HOOK:
1301 case WM_WINE_MOUSE_LL_HOOK:
1303 struct hook_extra_info *h_extra = (struct hook_extra_info *)lparam;
1305 return call_current_hook( h_extra->handle, HC_ACTION, wparam, h_extra->lparam );
1308 if (msg >= WM_WINE_FIRST_DRIVER_MSG && msg <= WM_WINE_LAST_DRIVER_MSG)
1309 return USER_Driver->pWindowMessage( hwnd, msg, wparam, lparam );
1310 FIXME( "unknown internal message %x\n", msg );
1315 /* since the WM_DDE_ACK response to a WM_DDE_EXECUTE message should contain the handle
1316 * to the memory handle, we keep track (in the server side) of all pairs of handle
1317 * used (the client passes its value and the content of the memory handle), and
1318 * the server stored both values (the client, and the local one, created after the
1319 * content). When a ACK message is generated, the list of pair is searched for a
1320 * matching pair, so that the client memory handle can be returned.
1323 HGLOBAL client_hMem;
1324 HGLOBAL server_hMem;
1327 static struct DDE_pair* dde_pairs;
1328 static int dde_num_alloc;
1329 static int dde_num_used;
1331 static CRITICAL_SECTION dde_crst;
1332 static CRITICAL_SECTION_DEBUG critsect_debug =
1335 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
1336 0, 0, { (DWORD_PTR)(__FILE__ ": dde_crst") }
1338 static CRITICAL_SECTION dde_crst = { &critsect_debug, -1, 0, 0, 0, 0 };
1340 static BOOL dde_add_pair(HGLOBAL chm, HGLOBAL shm)
1345 EnterCriticalSection(&dde_crst);
1347 /* now remember the pair of hMem on both sides */
1348 if (dde_num_used == dde_num_alloc)
1350 struct DDE_pair* tmp;
1352 tmp = HeapReAlloc( GetProcessHeap(), 0, dde_pairs,
1353 (dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
1355 tmp = HeapAlloc( GetProcessHeap(), 0,
1356 (dde_num_alloc + GROWBY) * sizeof(struct DDE_pair));
1360 LeaveCriticalSection(&dde_crst);
1364 /* zero out newly allocated part */
1365 memset(&dde_pairs[dde_num_alloc], 0, GROWBY * sizeof(struct DDE_pair));
1366 dde_num_alloc += GROWBY;
1369 for (i = 0; i < dde_num_alloc; i++)
1371 if (dde_pairs[i].server_hMem == 0)
1373 dde_pairs[i].client_hMem = chm;
1374 dde_pairs[i].server_hMem = shm;
1379 LeaveCriticalSection(&dde_crst);
1383 static HGLOBAL dde_get_pair(HGLOBAL shm)
1388 EnterCriticalSection(&dde_crst);
1389 for (i = 0; i < dde_num_alloc; i++)
1391 if (dde_pairs[i].server_hMem == shm)
1393 /* free this pair */
1394 dde_pairs[i].server_hMem = 0;
1396 ret = dde_pairs[i].client_hMem;
1400 LeaveCriticalSection(&dde_crst);
1404 /***********************************************************************
1407 * Post a DDE message
1409 static BOOL post_dde_message( struct packed_message *data, const struct send_message_info *info )
1413 UINT_PTR uiLo, uiHi;
1415 HGLOBAL hunlock = 0;
1419 if (!UnpackDDElParam( info->msg, info->lparam, &uiLo, &uiHi ))
1425 /* DDE messages which don't require packing are:
1434 /* uiHi should contain a hMem from WM_DDE_EXECUTE */
1435 HGLOBAL h = dde_get_pair( (HANDLE)uiHi );
1438 /* send back the value of h on the other side */
1439 push_data( data, &h, sizeof(HGLOBAL) );
1441 TRACE( "send dde-ack %lx %08lx => %p\n", uiLo, uiHi, h );
1446 /* uiHi should contain either an atom or 0 */
1447 TRACE( "send dde-ack %lx atom=%lx\n", uiLo, uiHi );
1448 lp = MAKELONG( uiLo, uiHi );
1457 size = GlobalSize( (HGLOBAL)uiLo ) ;
1458 if ((info->msg == WM_DDE_ADVISE && size < sizeof(DDEADVISE)) ||
1459 (info->msg == WM_DDE_DATA && size < sizeof(DDEDATA)) ||
1460 (info->msg == WM_DDE_POKE && size < sizeof(DDEPOKE))
1464 else if (info->msg != WM_DDE_DATA) return FALSE;
1469 if ((ptr = GlobalLock( (HGLOBAL)uiLo) ))
1471 DDEDATA *dde_data = (DDEDATA *)ptr;
1472 TRACE("unused %d, fResponse %d, fRelease %d, fDeferUpd %d, fAckReq %d, cfFormat %d\n",
1473 dde_data->unused, dde_data->fResponse, dde_data->fRelease,
1474 dde_data->reserved, dde_data->fAckReq, dde_data->cfFormat);
1475 push_data( data, ptr, size );
1476 hunlock = (HGLOBAL)uiLo;
1479 TRACE( "send ddepack %u %lx\n", size, uiHi );
1481 case WM_DDE_EXECUTE:
1484 if ((ptr = GlobalLock( (HGLOBAL)info->lparam) ))
1486 push_data(data, ptr, GlobalSize( (HGLOBAL)info->lparam ));
1487 /* so that the other side can send it back on ACK */
1489 hunlock = (HGLOBAL)info->lparam;
1494 SERVER_START_REQ( send_message )
1496 req->id = info->dest_tid;
1497 req->type = info->type;
1499 req->win = info->hwnd;
1500 req->msg = info->msg;
1501 req->wparam = info->wparam;
1503 req->timeout = TIMEOUT_INFINITE;
1504 for (i = 0; i < data->count; i++)
1505 wine_server_add_data( req, data->data[i], data->size[i] );
1506 if ((res = wine_server_call( req )))
1508 if (res == STATUS_INVALID_PARAMETER)
1509 /* FIXME: find a STATUS_ value for this one */
1510 SetLastError( ERROR_INVALID_THREAD_ID );
1512 SetLastError( RtlNtStatusToDosError(res) );
1515 FreeDDElParam(info->msg, info->lparam);
1518 if (hunlock) GlobalUnlock(hunlock);
1523 /***********************************************************************
1524 * unpack_dde_message
1526 * Unpack a posted DDE message received from another process.
1528 static BOOL unpack_dde_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
1529 void **buffer, size_t size )
1531 UINT_PTR uiLo, uiHi;
1540 /* hMem is being passed */
1541 if (size != sizeof(HGLOBAL)) return FALSE;
1542 if (!buffer || !*buffer) return FALSE;
1544 memcpy( &hMem, *buffer, size );
1545 uiHi = (UINT_PTR)hMem;
1546 TRACE("recv dde-ack %lx mem=%lx[%lx]\n", uiLo, uiHi, GlobalSize( hMem ));
1550 uiLo = LOWORD( *lparam );
1551 uiHi = HIWORD( *lparam );
1552 TRACE("recv dde-ack %lx atom=%lx\n", uiLo, uiHi);
1554 *lparam = PackDDElParam( WM_DDE_ACK, uiLo, uiHi );
1559 if ((!buffer || !*buffer) && message != WM_DDE_DATA) return FALSE;
1563 if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size )))
1565 if ((ptr = GlobalLock( hMem )))
1567 memcpy( ptr, *buffer, size );
1568 GlobalUnlock( hMem );
1576 uiLo = (UINT_PTR)hMem;
1578 *lparam = PackDDElParam( message, uiLo, uiHi );
1580 case WM_DDE_EXECUTE:
1583 if (!buffer || !*buffer) return FALSE;
1584 if (!(hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_DDESHARE, size ))) return FALSE;
1585 if ((ptr = GlobalLock( hMem )))
1587 memcpy( ptr, *buffer, size );
1588 GlobalUnlock( hMem );
1589 TRACE( "exec: pairing c=%08lx s=%p\n", *lparam, hMem );
1590 if (!dde_add_pair( (HGLOBAL)*lparam, hMem ))
1601 } else return FALSE;
1602 *lparam = (LPARAM)hMem;
1608 /***********************************************************************
1611 * Call a window procedure and the corresponding hooks.
1613 static LRESULT call_window_proc( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
1614 BOOL unicode, BOOL same_thread, enum wm_char_mapping mapping )
1616 struct user_thread_info *thread_info = get_user_thread_info();
1619 CWPRETSTRUCT cwpret;
1621 if (thread_info->recursion_count > MAX_SENDMSG_RECURSION) return 0;
1622 thread_info->recursion_count++;
1624 if (msg & 0x80000000)
1626 result = handle_internal_message( hwnd, msg, wparam, lparam );
1630 /* first the WH_CALLWNDPROC hook */
1631 hwnd = WIN_GetFullHandle( hwnd );
1632 cwp.lParam = lparam;
1633 cwp.wParam = wparam;
1636 HOOK_CallHooks( WH_CALLWNDPROC, HC_ACTION, same_thread, (LPARAM)&cwp, unicode );
1638 /* now call the window procedure */
1639 if (!WINPROC_call_window( hwnd, msg, wparam, lparam, &result, unicode, mapping )) goto done;
1641 /* and finally the WH_CALLWNDPROCRET hook */
1642 cwpret.lResult = result;
1643 cwpret.lParam = lparam;
1644 cwpret.wParam = wparam;
1645 cwpret.message = msg;
1647 HOOK_CallHooks( WH_CALLWNDPROCRET, HC_ACTION, same_thread, (LPARAM)&cwpret, unicode );
1649 thread_info->recursion_count--;
1654 /***********************************************************************
1655 * send_parent_notify
1657 * Send a WM_PARENTNOTIFY to all ancestors of the given window, unless
1658 * the window has the WS_EX_NOPARENTNOTIFY style.
1660 static void send_parent_notify( HWND hwnd, WORD event, WORD idChild, POINT pt )
1662 /* pt has to be in the client coordinates of the parent window */
1663 MapWindowPoints( 0, hwnd, &pt, 1 );
1668 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)) break;
1669 if (GetWindowLongW( hwnd, GWL_EXSTYLE ) & WS_EX_NOPARENTNOTIFY) break;
1670 if (!(parent = GetParent(hwnd))) break;
1671 if (parent == GetDesktopWindow()) break;
1672 MapWindowPoints( hwnd, parent, &pt, 1 );
1674 SendMessageW( hwnd, WM_PARENTNOTIFY,
1675 MAKEWPARAM( event, idChild ), MAKELPARAM( pt.x, pt.y ) );
1680 /***********************************************************************
1681 * accept_hardware_message
1683 * Tell the server we have passed the message to the app
1684 * (even though we may end up dropping it later on)
1686 static void accept_hardware_message( UINT hw_id, BOOL remove, HWND new_hwnd )
1688 SERVER_START_REQ( accept_hardware_message )
1691 req->remove = remove;
1692 req->new_win = new_hwnd;
1693 if (wine_server_call( req ))
1694 FIXME("Failed to reply to MSG_HARDWARE message. Message may not be removed from queue.\n");
1700 /***********************************************************************
1701 * process_keyboard_message
1703 * returns TRUE if the contents of 'msg' should be passed to the application
1705 static BOOL process_keyboard_message( MSG *msg, UINT hw_id, HWND hwnd_filter,
1706 UINT first, UINT last, BOOL remove )
1710 if (msg->message == WM_KEYDOWN || msg->message == WM_SYSKEYDOWN ||
1711 msg->message == WM_KEYUP || msg->message == WM_SYSKEYUP)
1712 switch (msg->wParam)
1714 case VK_LSHIFT: case VK_RSHIFT:
1715 msg->wParam = VK_SHIFT;
1717 case VK_LCONTROL: case VK_RCONTROL:
1718 msg->wParam = VK_CONTROL;
1720 case VK_LMENU: case VK_RMENU:
1721 msg->wParam = VK_MENU;
1725 /* FIXME: is this really the right place for this hook? */
1726 event.message = msg->message;
1727 event.hwnd = msg->hwnd;
1728 event.time = msg->time;
1729 event.paramL = (msg->wParam & 0xFF) | (HIWORD(msg->lParam) << 8);
1730 event.paramH = msg->lParam & 0x7FFF;
1731 if (HIWORD(msg->lParam) & 0x0100) event.paramH |= 0x8000; /* special_key - bit */
1732 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
1734 /* check message filters */
1735 if (msg->message < first || msg->message > last) return FALSE;
1736 if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
1740 if((msg->message == WM_KEYDOWN) &&
1741 (msg->hwnd != GetDesktopWindow()))
1743 /* Handle F1 key by sending out WM_HELP message */
1744 if (msg->wParam == VK_F1)
1746 PostMessageW( msg->hwnd, WM_KEYF1, 0, 0 );
1748 else if(msg->wParam >= VK_BROWSER_BACK &&
1749 msg->wParam <= VK_LAUNCH_APP2)
1751 /* FIXME: Process keystate */
1752 SendMessageW(msg->hwnd, WM_APPCOMMAND, (WPARAM)msg->hwnd, MAKELPARAM(0, (FAPPCOMMAND_KEY | (msg->wParam - VK_BROWSER_BACK + 1))));
1755 else if (msg->message == WM_KEYUP)
1757 /* Handle VK_APPS key by posting a WM_CONTEXTMENU message */
1758 if (msg->wParam == VK_APPS && !MENU_IsMenuActive())
1759 PostMessageW(msg->hwnd, WM_CONTEXTMENU, (WPARAM)msg->hwnd, (LPARAM)-1);
1763 if (HOOK_CallHooks( WH_KEYBOARD, remove ? HC_ACTION : HC_NOREMOVE,
1764 LOWORD(msg->wParam), msg->lParam, TRUE ))
1766 /* skip this message */
1767 HOOK_CallHooks( WH_CBT, HCBT_KEYSKIPPED, LOWORD(msg->wParam), msg->lParam, TRUE );
1768 accept_hardware_message( hw_id, TRUE, 0 );
1771 accept_hardware_message( hw_id, remove, 0 );
1773 if ( msg->message == WM_KEYDOWN || msg->message == WM_KEYUP )
1774 if ( ImmProcessKey(msg->hwnd, GetKeyboardLayout(0), msg->wParam, msg->lParam, 0) )
1775 msg->wParam = VK_PROCESSKEY;
1781 /***********************************************************************
1782 * process_mouse_message
1784 * returns TRUE if the contents of 'msg' should be passed to the application
1786 static BOOL process_mouse_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
1787 UINT first, UINT last, BOOL remove )
1796 MOUSEHOOKSTRUCT hook;
1799 /* find the window to dispatch this mouse message to */
1801 GetGUIThreadInfo( GetCurrentThreadId(), &info );
1802 if (info.hwndCapture)
1805 msg->hwnd = info.hwndCapture;
1809 msg->hwnd = WINPOS_WindowFromPoint( msg->hwnd, msg->pt, &hittest );
1812 if (!msg->hwnd || !WIN_IsCurrentThread( msg->hwnd ))
1814 accept_hardware_message( hw_id, TRUE, msg->hwnd );
1818 /* FIXME: is this really the right place for this hook? */
1819 event.message = msg->message;
1820 event.time = msg->time;
1821 event.hwnd = msg->hwnd;
1822 event.paramL = msg->pt.x;
1823 event.paramH = msg->pt.y;
1824 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
1826 if (!check_hwnd_filter( msg, hwnd_filter )) return FALSE;
1829 message = msg->message;
1830 /* Note: windows has no concept of a non-client wheel message */
1831 if (message != WM_MOUSEWHEEL)
1833 if (hittest != HTCLIENT)
1835 message += WM_NCMOUSEMOVE - WM_MOUSEMOVE;
1836 msg->wParam = hittest;
1840 /* coordinates don't get translated while tracking a menu */
1841 /* FIXME: should differentiate popups and top-level menus */
1842 if (!(info.flags & GUI_INMENUMODE))
1843 ScreenToClient( msg->hwnd, &pt );
1846 msg->lParam = MAKELONG( pt.x, pt.y );
1848 /* translate double clicks */
1850 if ((msg->message == WM_LBUTTONDOWN) ||
1851 (msg->message == WM_RBUTTONDOWN) ||
1852 (msg->message == WM_MBUTTONDOWN) ||
1853 (msg->message == WM_XBUTTONDOWN))
1855 BOOL update = remove;
1857 /* translate double clicks -
1858 * note that ...MOUSEMOVEs can slip in between
1859 * ...BUTTONDOWN and ...BUTTONDBLCLK messages */
1861 if ((info.flags & (GUI_INMENUMODE|GUI_INMOVESIZE)) ||
1862 hittest != HTCLIENT ||
1863 (GetClassLongA( msg->hwnd, GCL_STYLE ) & CS_DBLCLKS))
1865 if ((msg->message == clk_msg.message) &&
1866 (msg->hwnd == clk_msg.hwnd) &&
1867 (msg->wParam == clk_msg.wParam) &&
1868 (msg->time - clk_msg.time < GetDoubleClickTime()) &&
1869 (abs(msg->pt.x - clk_msg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
1870 (abs(msg->pt.y - clk_msg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
1872 message += (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
1875 clk_msg.message = 0; /* clear the double click conditions */
1880 if (message < first || message > last) return FALSE;
1881 /* update static double click conditions */
1882 if (update) clk_msg = *msg;
1886 if (message < first || message > last) return FALSE;
1889 /* message is accepted now (but may still get dropped) */
1892 hook.hwnd = msg->hwnd;
1893 hook.wHitTestCode = hittest;
1894 hook.dwExtraInfo = extra_info;
1895 if (HOOK_CallHooks( WH_MOUSE, remove ? HC_ACTION : HC_NOREMOVE,
1896 message, (LPARAM)&hook, TRUE ))
1899 hook.hwnd = msg->hwnd;
1900 hook.wHitTestCode = hittest;
1901 hook.dwExtraInfo = extra_info;
1902 HOOK_CallHooks( WH_CBT, HCBT_CLICKSKIPPED, message, (LPARAM)&hook, TRUE );
1903 accept_hardware_message( hw_id, TRUE, 0 );
1907 if ((hittest == HTERROR) || (hittest == HTNOWHERE))
1909 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd,
1910 MAKELONG( hittest, msg->message ));
1911 accept_hardware_message( hw_id, TRUE, 0 );
1915 accept_hardware_message( hw_id, remove, 0 );
1917 if (!remove || info.hwndCapture)
1919 msg->message = message;
1925 if ((msg->message == WM_LBUTTONDOWN) ||
1926 (msg->message == WM_RBUTTONDOWN) ||
1927 (msg->message == WM_MBUTTONDOWN) ||
1928 (msg->message == WM_XBUTTONDOWN))
1930 /* Send the WM_PARENTNOTIFY,
1931 * note that even for double/nonclient clicks
1932 * notification message is still WM_L/M/RBUTTONDOWN.
1934 send_parent_notify( msg->hwnd, msg->message, 0, msg->pt );
1936 /* Activate the window if needed */
1938 if (msg->hwnd != info.hwndActive)
1940 HWND hwndTop = msg->hwnd;
1943 if ((GetWindowLongW( hwndTop, GWL_STYLE ) & (WS_POPUP|WS_CHILD)) != WS_CHILD) break;
1944 hwndTop = GetParent( hwndTop );
1947 if (hwndTop && hwndTop != GetDesktopWindow())
1949 LONG ret = SendMessageW( msg->hwnd, WM_MOUSEACTIVATE, (WPARAM)hwndTop,
1950 MAKELONG( hittest, msg->message ) );
1953 case MA_NOACTIVATEANDEAT:
1958 case MA_ACTIVATEANDEAT:
1963 if (!FOCUS_MouseActivate( hwndTop )) eatMsg = TRUE;
1966 WARN( "unknown WM_MOUSEACTIVATE code %d\n", ret );
1973 /* send the WM_SETCURSOR message */
1975 /* Windows sends the normal mouse message as the message parameter
1976 in the WM_SETCURSOR message even if it's non-client mouse message */
1977 SendMessageW( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd, MAKELONG( hittest, msg->message ));
1979 msg->message = message;
1984 /***********************************************************************
1985 * process_hardware_message
1987 * Process a hardware message; return TRUE if message should be passed on to the app
1989 static BOOL process_hardware_message( MSG *msg, UINT hw_id, ULONG_PTR extra_info, HWND hwnd_filter,
1990 UINT first, UINT last, BOOL remove )
1992 if (is_keyboard_message( msg->message ))
1993 return process_keyboard_message( msg, hw_id, hwnd_filter, first, last, remove );
1995 if (is_mouse_message( msg->message ))
1996 return process_mouse_message( msg, hw_id, extra_info, hwnd_filter, first, last, remove );
1998 ERR( "unknown message type %x\n", msg->message );
2003 /***********************************************************************
2004 * call_sendmsg_callback
2006 * Call the callback function of SendMessageCallback.
2008 static inline void call_sendmsg_callback( SENDASYNCPROC callback, HWND hwnd, UINT msg,
2009 ULONG_PTR data, LRESULT result )
2011 if (!callback) return;
2013 if (TRACE_ON(relay))
2014 DPRINTF( "%04x:Call message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
2015 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
2017 callback( hwnd, msg, data, result );
2018 if (TRACE_ON(relay))
2019 DPRINTF( "%04x:Ret message callback %p (hwnd=%p,msg=%s,data=%08lx,result=%08lx)\n",
2020 GetCurrentThreadId(), callback, hwnd, SPY_GetMsgName( msg, hwnd ),
2025 /***********************************************************************
2028 * Peek for a message matching the given parameters. Return FALSE if none available.
2029 * All pending sent messages are processed before returning.
2031 static BOOL peek_message( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags )
2034 ULONG_PTR extra_info = 0;
2035 struct user_thread_info *thread_info = get_user_thread_info();
2036 struct received_message_info info, *old_info;
2037 unsigned int wake_mask, changed_mask = HIWORD(flags);
2038 unsigned int hw_id = 0; /* id of previous hardware message */
2040 if (!first && !last) last = ~0;
2041 if (!changed_mask) changed_mask = QS_ALLINPUT;
2042 wake_mask = changed_mask & (QS_SENDMESSAGE | QS_SMRESULT);
2047 void *buffer = NULL;
2048 size_t size = 0, buffer_size = 0;
2050 do /* loop while buffer is too small */
2052 if (buffer_size && !(buffer = HeapAlloc( GetProcessHeap(), 0, buffer_size )))
2054 SERVER_START_REQ( get_message )
2057 req->get_win = hwnd;
2058 req->get_first = first;
2059 req->get_last = last;
2061 req->wake_mask = wake_mask;
2062 req->changed_mask = changed_mask;
2063 if (buffer_size) wine_server_set_reply( req, buffer, buffer_size );
2064 if (!(res = wine_server_call( req )))
2066 size = wine_server_reply_size( reply );
2067 info.type = reply->type;
2068 info.msg.hwnd = reply->win;
2069 info.msg.message = reply->msg;
2070 info.msg.wParam = reply->wparam;
2071 info.msg.lParam = reply->lparam;
2072 info.msg.time = reply->time;
2073 info.msg.pt.x = reply->x;
2074 info.msg.pt.y = reply->y;
2075 hw_id = reply->hw_id;
2076 extra_info = reply->info;
2077 thread_info->active_hooks = reply->active_hooks;
2081 HeapFree( GetProcessHeap(), 0, buffer );
2082 buffer_size = reply->total;
2086 } while (res == STATUS_BUFFER_OVERFLOW);
2088 if (res) return FALSE;
2090 TRACE( "got type %d msg %x (%s) hwnd %p wp %lx lp %lx\n",
2091 info.type, info.msg.message,
2092 (info.type == MSG_WINEVENT) ? "MSG_WINEVENT" : SPY_GetMsgName(info.msg.message, info.msg.hwnd),
2093 info.msg.hwnd, info.msg.wParam, info.msg.lParam );
2099 info.flags = ISMEX_SEND;
2102 info.flags = ISMEX_NOTIFY;
2105 info.flags = ISMEX_CALLBACK;
2107 case MSG_CALLBACK_RESULT:
2108 if (size >= sizeof(struct callback_msg_data))
2110 const struct callback_msg_data *data = (const struct callback_msg_data *)buffer;
2111 call_sendmsg_callback( data->callback, info.msg.hwnd,
2112 info.msg.message, data->data, data->result );
2116 if (size >= sizeof(struct winevent_msg_data))
2118 WINEVENTPROC hook_proc;
2119 const struct winevent_msg_data *data = (const struct winevent_msg_data *)buffer;
2121 hook_proc = data->hook_proc;
2122 size -= sizeof(*data);
2125 WCHAR module[MAX_PATH];
2127 size = min( size, (MAX_PATH - 1) * sizeof(WCHAR) );
2128 memcpy( module, buffer, size );
2129 module[size / sizeof(WCHAR)] = 0;
2130 if (!(hook_proc = get_hook_proc( hook_proc, module )))
2132 ERR( "invalid winevent hook module name %s\n", debugstr_w(module) );
2137 if (TRACE_ON(relay))
2138 DPRINTF( "%04x:Call winevent proc %p (hook=%p,event=%x,hwnd=%p,object_id=%lx,child_id=%lx,tid=%04x,time=%x)\n",
2139 GetCurrentThreadId(), hook_proc,
2140 data->hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2141 info.msg.lParam, data->tid, info.msg.time);
2143 hook_proc( data->hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2144 info.msg.lParam, data->tid, info.msg.time );
2146 if (TRACE_ON(relay))
2147 DPRINTF( "%04x:Ret winevent proc %p (hook=%p,event=%x,hwnd=%p,object_id=%lx,child_id=%lx,tid=%04x,time=%x)\n",
2148 GetCurrentThreadId(), hook_proc,
2149 data->hook, info.msg.message, info.msg.hwnd, info.msg.wParam,
2150 info.msg.lParam, data->tid, info.msg.time);
2153 case MSG_OTHER_PROCESS:
2154 info.flags = ISMEX_SEND;
2155 if (!unpack_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
2156 &info.msg.lParam, &buffer, size ))
2159 reply_message( &info, 0, TRUE );
2164 if (!process_hardware_message( &info.msg, hw_id, extra_info,
2165 hwnd, first, last, flags & PM_REMOVE ))
2167 TRACE("dropping msg %x\n", info.msg.message );
2168 goto next; /* ignore it */
2170 thread_info->GetMessagePosVal = MAKELONG( info.msg.pt.x, info.msg.pt.y );
2173 thread_info->GetMessageExtraInfoVal = extra_info;
2174 if (info.msg.message >= WM_DDE_FIRST && info.msg.message <= WM_DDE_LAST)
2176 if (!unpack_dde_message( info.msg.hwnd, info.msg.message, &info.msg.wParam,
2177 &info.msg.lParam, &buffer, size ))
2178 goto next; /* ignore it */
2181 HeapFree( GetProcessHeap(), 0, buffer );
2185 /* if we get here, we have a sent message; call the window procedure */
2186 old_info = thread_info->receive_info;
2187 thread_info->receive_info = &info;
2188 result = call_window_proc( info.msg.hwnd, info.msg.message, info.msg.wParam,
2189 info.msg.lParam, (info.type != MSG_ASCII), FALSE,
2190 WMCHAR_MAP_RECVMESSAGE );
2191 reply_message( &info, result, TRUE );
2192 thread_info->receive_info = old_info;
2194 /* if some PM_QS* flags were specified, only handle sent messages from now on */
2195 if (HIWORD(flags)) flags = PM_QS_SENDMESSAGE | LOWORD(flags);
2197 HeapFree( GetProcessHeap(), 0, buffer );
2202 /***********************************************************************
2203 * process_sent_messages
2205 * Process all pending sent messages.
2207 static inline void process_sent_messages(void)
2210 peek_message( &msg, 0, 0, 0, PM_REMOVE | PM_QS_SENDMESSAGE );
2214 /***********************************************************************
2215 * get_server_queue_handle
2217 * Get a handle to the server message queue for the current thread.
2219 static HANDLE get_server_queue_handle(void)
2221 struct user_thread_info *thread_info = get_user_thread_info();
2224 if (!(ret = thread_info->server_queue))
2226 SERVER_START_REQ( get_msg_queue )
2228 wine_server_call( req );
2229 ret = reply->handle;
2232 thread_info->server_queue = ret;
2233 if (!ret) ERR( "Cannot get server thread queue\n" );
2239 /***********************************************************************
2240 * wait_message_reply
2242 * Wait until a sent message gets replied to.
2244 static void wait_message_reply( UINT flags )
2246 HANDLE server_queue = get_server_queue_handle();
2250 unsigned int wake_bits = 0;
2253 SERVER_START_REQ( set_queue_mask )
2255 req->wake_mask = QS_SMRESULT | ((flags & SMTO_BLOCK) ? 0 : QS_SENDMESSAGE);
2256 req->changed_mask = req->wake_mask;
2258 if (!wine_server_call( req ))
2259 wake_bits = reply->wake_bits;
2263 if (wake_bits & QS_SMRESULT) return; /* got a result */
2264 if (wake_bits & QS_SENDMESSAGE)
2266 /* Process the sent message immediately */
2267 process_sent_messages();
2271 /* now wait for it */
2273 ReleaseThunkLock( &dwlc );
2274 res = USER_Driver->pMsgWaitForMultipleObjectsEx( 1, &server_queue,
2275 INFINITE, QS_SENDMESSAGE, 0 );
2276 if (dwlc) RestoreThunkLock( dwlc );
2280 /***********************************************************************
2281 * put_message_in_queue
2283 * Put a sent message into the destination queue.
2284 * For inter-process message, reply_size is set to expected size of reply data.
2286 static BOOL put_message_in_queue( const struct send_message_info *info, size_t *reply_size )
2288 struct packed_message data;
2289 message_data_t msg_data;
2292 timeout_t timeout = TIMEOUT_INFINITE;
2294 /* Check for INFINITE timeout for compatibility with Win9x,
2295 * although Windows >= NT does not do so
2297 if (info->type != MSG_NOTIFY &&
2298 info->type != MSG_CALLBACK &&
2299 info->type != MSG_POSTED &&
2301 info->timeout != INFINITE)
2303 /* timeout is signed despite the prototype */
2304 timeout = (timeout_t)max( 0, (int)info->timeout ) * -10000;
2308 if (info->type == MSG_OTHER_PROCESS)
2310 *reply_size = pack_message( info->hwnd, info->msg, info->wparam, info->lparam, &data );
2311 if (data.count == -1)
2313 WARN( "cannot pack message %x\n", info->msg );
2317 else if (info->type == MSG_CALLBACK)
2319 msg_data.callback.callback = info->callback;
2320 msg_data.callback.data = info->data;
2321 msg_data.callback.result = 0;
2322 data.data[0] = &msg_data;
2323 data.size[0] = sizeof(msg_data.callback);
2326 else if (info->type == MSG_POSTED && info->msg >= WM_DDE_FIRST && info->msg <= WM_DDE_LAST)
2328 return post_dde_message( &data, info );
2331 SERVER_START_REQ( send_message )
2333 req->id = info->dest_tid;
2334 req->type = info->type;
2336 req->win = info->hwnd;
2337 req->msg = info->msg;
2338 req->wparam = info->wparam;
2339 req->lparam = info->lparam;
2340 req->timeout = timeout;
2342 if (info->flags & SMTO_ABORTIFHUNG) req->flags |= SEND_MSG_ABORT_IF_HUNG;
2343 for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
2344 if ((res = wine_server_call( req )))
2346 if (res == STATUS_INVALID_PARAMETER)
2347 /* FIXME: find a STATUS_ value for this one */
2348 SetLastError( ERROR_INVALID_THREAD_ID );
2350 SetLastError( RtlNtStatusToDosError(res) );
2358 /***********************************************************************
2361 * Retrieve a message reply from the server.
2363 static LRESULT retrieve_reply( const struct send_message_info *info,
2364 size_t reply_size, LRESULT *result )
2367 void *reply_data = NULL;
2371 if (!(reply_data = HeapAlloc( GetProcessHeap(), 0, reply_size )))
2373 WARN( "no memory for reply, will be truncated\n" );
2377 SERVER_START_REQ( get_message_reply )
2380 if (reply_size) wine_server_set_reply( req, reply_data, reply_size );
2381 if (!(status = wine_server_call( req ))) *result = reply->result;
2382 reply_size = wine_server_reply_size( reply );
2385 if (!status && reply_size)
2386 unpack_reply( info->hwnd, info->msg, info->wparam, info->lparam, reply_data, reply_size );
2388 HeapFree( GetProcessHeap(), 0, reply_data );
2390 TRACE( "hwnd %p msg %x (%s) wp %lx lp %lx got reply %lx (err=%d)\n",
2391 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam,
2392 info->lparam, *result, status );
2394 /* MSDN states that last error is 0 on timeout, but at least NT4 returns ERROR_TIMEOUT */
2395 if (status) SetLastError( RtlNtStatusToDosError(status) );
2400 /***********************************************************************
2401 * send_inter_thread_message
2403 static LRESULT send_inter_thread_message( const struct send_message_info *info, LRESULT *res_ptr )
2405 size_t reply_size = 0;
2407 TRACE( "hwnd %p msg %x (%s) wp %lx lp %lx\n",
2408 info->hwnd, info->msg, SPY_GetMsgName(info->msg, info->hwnd), info->wparam, info->lparam );
2410 USER_CheckNotLock();
2412 if (!put_message_in_queue( info, &reply_size )) return 0;
2414 /* there's no reply to wait for on notify/callback messages */
2415 if (info->type == MSG_NOTIFY || info->type == MSG_CALLBACK) return 1;
2417 wait_message_reply( info->flags );
2418 return retrieve_reply( info, reply_size, res_ptr );
2422 /***********************************************************************
2423 * send_inter_thread_callback
2425 static LRESULT send_inter_thread_callback( HWND hwnd, UINT msg, WPARAM wp, LPARAM lp,
2426 LRESULT *result, void *arg )
2428 struct send_message_info *info = arg;
2433 return send_inter_thread_message( info, result );
2437 /***********************************************************************
2440 * Backend implementation of the various SendMessage functions.
2442 static BOOL send_message( struct send_message_info *info, DWORD_PTR *res_ptr, BOOL unicode )
2448 if (is_broadcast(info->hwnd))
2450 EnumWindows( broadcast_message_callback, (LPARAM)info );
2451 if (res_ptr) *res_ptr = 1;
2455 if (!(info->dest_tid = GetWindowThreadProcessId( info->hwnd, &dest_pid ))) return FALSE;
2457 if (USER_IsExitingThread( info->dest_tid )) return FALSE;
2459 SPY_EnterMessage( SPY_SENDMESSAGE, info->hwnd, info->msg, info->wparam, info->lparam );
2461 if (info->dest_tid == GetCurrentThreadId())
2463 result = call_window_proc( info->hwnd, info->msg, info->wparam, info->lparam,
2464 unicode, TRUE, info->wm_char );
2465 if (info->type == MSG_CALLBACK)
2466 call_sendmsg_callback( info->callback, info->hwnd, info->msg, info->data, result );
2471 if (dest_pid != GetCurrentProcessId() && (info->type == MSG_ASCII || info->type == MSG_UNICODE))
2472 info->type = MSG_OTHER_PROCESS;
2474 /* MSG_ASCII can be sent unconverted except for WM_CHAR; everything else needs to be Unicode */
2475 if (!unicode && is_unicode_message( info->msg ) &&
2476 (info->type != MSG_ASCII || info->msg == WM_CHAR))
2477 ret = WINPROC_CallProcAtoW( send_inter_thread_callback, info->hwnd, info->msg,
2478 info->wparam, info->lparam, &result, info, info->wm_char );
2480 ret = send_inter_thread_message( info, &result );
2483 SPY_ExitMessage( SPY_RESULT_OK, info->hwnd, info->msg, result, info->wparam, info->lparam );
2484 if (ret && res_ptr) *res_ptr = result;
2489 /***********************************************************************
2490 * MSG_SendInternalMessageTimeout
2492 * Same as SendMessageTimeoutW but sends the message to a specific thread
2493 * without requiring a window handle. Only works for internal Wine messages.
2495 LRESULT MSG_SendInternalMessageTimeout( DWORD dest_pid, DWORD dest_tid,
2496 UINT msg, WPARAM wparam, LPARAM lparam,
2497 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2499 struct send_message_info info;
2500 LRESULT ret, result;
2502 assert( msg & 0x80000000 ); /* must be an internal Wine message */
2504 info.type = MSG_UNICODE;
2505 info.dest_tid = dest_tid;
2508 info.wparam = wparam;
2509 info.lparam = lparam;
2511 info.timeout = timeout;
2513 if (USER_IsExitingThread( dest_tid )) return 0;
2515 if (dest_tid == GetCurrentThreadId())
2517 result = handle_internal_message( 0, msg, wparam, lparam );
2522 if (dest_pid != GetCurrentProcessId()) info.type = MSG_OTHER_PROCESS;
2523 ret = send_inter_thread_message( &info, &result );
2525 if (ret && res_ptr) *res_ptr = result;
2530 /***********************************************************************
2531 * SendMessageTimeoutW (USER32.@)
2533 LRESULT WINAPI SendMessageTimeoutW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2534 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2536 struct send_message_info info;
2538 info.type = MSG_UNICODE;
2541 info.wparam = wparam;
2542 info.lparam = lparam;
2544 info.timeout = timeout;
2546 return send_message( &info, res_ptr, TRUE );
2549 /***********************************************************************
2550 * SendMessageTimeoutA (USER32.@)
2552 LRESULT WINAPI SendMessageTimeoutA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2553 UINT flags, UINT timeout, PDWORD_PTR res_ptr )
2555 struct send_message_info info;
2557 info.type = MSG_ASCII;
2560 info.wparam = wparam;
2561 info.lparam = lparam;
2563 info.timeout = timeout;
2564 info.wm_char = WMCHAR_MAP_SENDMESSAGETIMEOUT;
2566 return send_message( &info, res_ptr, FALSE );
2570 /***********************************************************************
2571 * SendMessageW (USER32.@)
2573 LRESULT WINAPI SendMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2576 struct send_message_info info;
2578 info.type = MSG_UNICODE;
2581 info.wparam = wparam;
2582 info.lparam = lparam;
2583 info.flags = SMTO_NORMAL;
2586 send_message( &info, &res, TRUE );
2591 /***********************************************************************
2592 * SendMessageA (USER32.@)
2594 LRESULT WINAPI SendMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2597 struct send_message_info info;
2599 info.type = MSG_ASCII;
2602 info.wparam = wparam;
2603 info.lparam = lparam;
2604 info.flags = SMTO_NORMAL;
2606 info.wm_char = WMCHAR_MAP_SENDMESSAGE;
2608 send_message( &info, &res, FALSE );
2613 /***********************************************************************
2614 * SendNotifyMessageA (USER32.@)
2616 BOOL WINAPI SendNotifyMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2618 struct send_message_info info;
2620 if (is_pointer_message(msg))
2622 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2626 info.type = MSG_NOTIFY;
2629 info.wparam = wparam;
2630 info.lparam = lparam;
2632 info.wm_char = WMCHAR_MAP_SENDMESSAGETIMEOUT;
2634 return send_message( &info, NULL, FALSE );
2638 /***********************************************************************
2639 * SendNotifyMessageW (USER32.@)
2641 BOOL WINAPI SendNotifyMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2643 struct send_message_info info;
2645 if (is_pointer_message(msg))
2647 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2651 info.type = MSG_NOTIFY;
2654 info.wparam = wparam;
2655 info.lparam = lparam;
2658 return send_message( &info, NULL, TRUE );
2662 /***********************************************************************
2663 * SendMessageCallbackA (USER32.@)
2665 BOOL WINAPI SendMessageCallbackA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2666 SENDASYNCPROC callback, ULONG_PTR data )
2668 struct send_message_info info;
2670 if (is_pointer_message(msg))
2672 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2676 info.type = MSG_CALLBACK;
2679 info.wparam = wparam;
2680 info.lparam = lparam;
2681 info.callback = callback;
2684 info.wm_char = WMCHAR_MAP_SENDMESSAGETIMEOUT;
2686 return send_message( &info, NULL, FALSE );
2690 /***********************************************************************
2691 * SendMessageCallbackW (USER32.@)
2693 BOOL WINAPI SendMessageCallbackW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
2694 SENDASYNCPROC callback, ULONG_PTR data )
2696 struct send_message_info info;
2698 if (is_pointer_message(msg))
2700 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2704 info.type = MSG_CALLBACK;
2707 info.wparam = wparam;
2708 info.lparam = lparam;
2709 info.callback = callback;
2713 return send_message( &info, NULL, TRUE );
2717 /***********************************************************************
2718 * ReplyMessage (USER32.@)
2720 BOOL WINAPI ReplyMessage( LRESULT result )
2722 struct received_message_info *info = get_user_thread_info()->receive_info;
2724 if (!info) return FALSE;
2725 reply_message( info, result, FALSE );
2730 /***********************************************************************
2731 * InSendMessage (USER32.@)
2733 BOOL WINAPI InSendMessage(void)
2735 return (InSendMessageEx(NULL) & (ISMEX_SEND|ISMEX_REPLIED)) == ISMEX_SEND;
2739 /***********************************************************************
2740 * InSendMessageEx (USER32.@)
2742 DWORD WINAPI InSendMessageEx( LPVOID reserved )
2744 struct received_message_info *info = get_user_thread_info()->receive_info;
2746 if (info) return info->flags;
2747 return ISMEX_NOSEND;
2751 /***********************************************************************
2752 * PostMessageA (USER32.@)
2754 BOOL WINAPI PostMessageA( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2756 if (!map_wparam_AtoW( msg, &wparam, WMCHAR_MAP_POSTMESSAGE )) return TRUE;
2757 return PostMessageW( hwnd, msg, wparam, lparam );
2761 /***********************************************************************
2762 * PostMessageW (USER32.@)
2764 BOOL WINAPI PostMessageW( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
2766 struct send_message_info info;
2768 if (is_pointer_message( msg ))
2770 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2774 TRACE( "hwnd %p msg %x (%s) wp %lx lp %lx\n",
2775 hwnd, msg, SPY_GetMsgName(msg, hwnd), wparam, lparam );
2777 info.type = MSG_POSTED;
2780 info.wparam = wparam;
2781 info.lparam = lparam;
2784 if (is_broadcast(hwnd))
2786 EnumWindows( broadcast_message_callback, (LPARAM)&info );
2790 if (!hwnd) return PostThreadMessageW( GetCurrentThreadId(), msg, wparam, lparam );
2792 if (!(info.dest_tid = GetWindowThreadProcessId( hwnd, NULL ))) return FALSE;
2794 if (USER_IsExitingThread( info.dest_tid )) return TRUE;
2796 return put_message_in_queue( &info, NULL );
2800 /**********************************************************************
2801 * PostThreadMessageA (USER32.@)
2803 BOOL WINAPI PostThreadMessageA( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2805 if (!map_wparam_AtoW( msg, &wparam, WMCHAR_MAP_POSTMESSAGE )) return TRUE;
2806 return PostThreadMessageW( thread, msg, wparam, lparam );
2810 /**********************************************************************
2811 * PostThreadMessageW (USER32.@)
2813 BOOL WINAPI PostThreadMessageW( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam )
2815 struct send_message_info info;
2817 if (is_pointer_message( msg ))
2819 SetLastError( ERROR_MESSAGE_SYNC_ONLY );
2822 if (USER_IsExitingThread( thread )) return TRUE;
2824 info.type = MSG_POSTED;
2825 info.dest_tid = thread;
2828 info.wparam = wparam;
2829 info.lparam = lparam;
2831 return put_message_in_queue( &info, NULL );
2835 /***********************************************************************
2836 * PostQuitMessage (USER32.@)
2838 * Posts a quit message to the current thread's message queue.
2841 * exit_code [I] Exit code to return from message loop.
2847 * This function is not the same as calling:
2848 *|PostThreadMessage(GetCurrentThreadId(), WM_QUIT, exit_code, 0);
2849 * It instead sets a flag in the message queue that signals it to generate
2850 * a WM_QUIT message when there are no other pending sent or posted messages
2853 void WINAPI PostQuitMessage( INT exit_code )
2855 SERVER_START_REQ( post_quit_message )
2857 req->exit_code = exit_code;
2858 wine_server_call( req );
2864 /***********************************************************************
2865 * PeekMessageW (USER32.@)
2867 BOOL WINAPI PeekMessageW( MSG *msg_out, HWND hwnd, UINT first, UINT last, UINT flags )
2869 struct user_thread_info *thread_info = get_user_thread_info();
2872 USER_CheckNotLock();
2874 /* check for graphics events */
2875 USER_Driver->pMsgWaitForMultipleObjectsEx( 0, NULL, 0, QS_ALLINPUT, 0 );
2877 hwnd = WIN_GetFullHandle( hwnd );
2881 if (!peek_message( &msg, hwnd, first, last, flags ))
2883 if (!(flags & PM_NOYIELD))
2886 ReleaseThunkLock(&count);
2888 if (count) RestoreThunkLock(count);
2892 if (msg.message & 0x80000000)
2894 if (!(flags & PM_REMOVE))
2896 /* Have to remove the message explicitly.
2897 Do this before handling it, because the message handler may
2898 call PeekMessage again */
2899 peek_message( &msg, msg.hwnd, msg.message, msg.message, flags | PM_REMOVE );
2901 handle_internal_message( msg.hwnd, msg.message, msg.wParam, msg.lParam );
2906 thread_info->GetMessageTimeVal = msg.time;
2907 msg.pt.x = (short)LOWORD( thread_info->GetMessagePosVal );
2908 msg.pt.y = (short)HIWORD( thread_info->GetMessagePosVal );
2910 HOOK_CallHooks( WH_GETMESSAGE, HC_ACTION, flags & PM_REMOVE, (LPARAM)&msg, TRUE );
2912 /* copy back our internal safe copy of message data to msg_out.
2913 * msg_out is a variable from the *program*, so it can't be used
2914 * internally as it can get "corrupted" by our use of SendMessage()
2915 * (back to the program) inside the message handling itself. */
2918 SetLastError( ERROR_NOACCESS );
2926 /***********************************************************************
2927 * PeekMessageA (USER32.@)
2929 BOOL WINAPI PeekMessageA( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags )
2931 if (get_pending_wmchar( msg, first, last, (flags & PM_REMOVE) )) return TRUE;
2932 if (!PeekMessageW( msg, hwnd, first, last, flags )) return FALSE;
2933 map_wparam_WtoA( msg, (flags & PM_REMOVE) );
2938 /***********************************************************************
2939 * GetMessageW (USER32.@)
2941 BOOL WINAPI GetMessageW( MSG *msg, HWND hwnd, UINT first, UINT last )
2943 HANDLE server_queue = get_server_queue_handle();
2944 int mask = QS_POSTMESSAGE | QS_SENDMESSAGE; /* Always selected */
2948 if ((first <= WM_KEYLAST) && (last >= WM_KEYFIRST)) mask |= QS_KEY;
2949 if ( ((first <= WM_MOUSELAST) && (last >= WM_MOUSEFIRST)) ||
2950 ((first <= WM_NCMOUSELAST) && (last >= WM_NCMOUSEFIRST)) ) mask |= QS_MOUSE;
2951 if ((first <= WM_TIMER) && (last >= WM_TIMER)) mask |= QS_TIMER;
2952 if ((first <= WM_SYSTIMER) && (last >= WM_SYSTIMER)) mask |= QS_TIMER;
2953 if ((first <= WM_PAINT) && (last >= WM_PAINT)) mask |= QS_PAINT;
2955 else mask = QS_ALLINPUT;
2957 while (!PeekMessageW( msg, hwnd, first, last, PM_REMOVE | PM_NOYIELD | (mask << 16) ))
2961 ReleaseThunkLock( &dwlc );
2962 USER_Driver->pMsgWaitForMultipleObjectsEx( 1, &server_queue, INFINITE, mask, 0 );
2963 if (dwlc) RestoreThunkLock( dwlc );
2966 return (msg->message != WM_QUIT);
2970 /***********************************************************************
2971 * GetMessageA (USER32.@)
2973 BOOL WINAPI GetMessageA( MSG *msg, HWND hwnd, UINT first, UINT last )
2975 if (get_pending_wmchar( msg, first, last, TRUE )) return TRUE;
2976 GetMessageW( msg, hwnd, first, last );
2977 map_wparam_WtoA( msg, TRUE );
2978 return (msg->message != WM_QUIT);
2982 /***********************************************************************
2983 * IsDialogMessageA (USER32.@)
2984 * IsDialogMessage (USER32.@)
2986 BOOL WINAPI IsDialogMessageA( HWND hwndDlg, LPMSG pmsg )
2989 map_wparam_AtoW( msg.message, &msg.wParam, WMCHAR_MAP_NOMAPPING );
2990 return IsDialogMessageW( hwndDlg, &msg );
2994 /***********************************************************************
2995 * TranslateMessage (USER32.@)
2997 * Implementation of TranslateMessage.
2999 * TranslateMessage translates virtual-key messages into character-messages,
3001 * WM_KEYDOWN/WM_KEYUP combinations produce a WM_CHAR or WM_DEADCHAR message.
3002 * ditto replacing WM_* with WM_SYS*
3003 * This produces WM_CHAR messages only for keys mapped to ASCII characters
3004 * by the keyboard driver.
3006 * If the message is WM_KEYDOWN, WM_KEYUP, WM_SYSKEYDOWN, or WM_SYSKEYUP, the
3007 * return value is nonzero, regardless of the translation.
3010 BOOL WINAPI TranslateMessage( const MSG *msg )
3016 if (msg->message < WM_KEYFIRST || msg->message > WM_KEYLAST) return FALSE;
3017 if (msg->message != WM_KEYDOWN && msg->message != WM_SYSKEYDOWN) return TRUE;
3019 TRACE_(key)("Translating key %s (%04lx), scancode %02x\n",
3020 SPY_GetVKeyName(msg->wParam), msg->wParam, LOBYTE(HIWORD(msg->lParam)));
3022 if ( msg->wParam == VK_PROCESSKEY )
3023 return ImmTranslateMessage(msg->hwnd, msg->message, msg->wParam, msg->lParam);
3025 GetKeyboardState( state );
3026 /* FIXME : should handle ToUnicode yielding 2 */
3027 switch (ToUnicode(msg->wParam, HIWORD(msg->lParam), state, wp, 2, 0))
3030 message = (msg->message == WM_KEYDOWN) ? WM_CHAR : WM_SYSCHAR;
3031 TRACE_(key)("1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
3032 msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
3033 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
3037 message = (msg->message == WM_KEYDOWN) ? WM_DEADCHAR : WM_SYSDEADCHAR;
3038 TRACE_(key)("-1 -> PostMessageW(%p,%s,%04x,%08lx)\n",
3039 msg->hwnd, SPY_GetMsgName(message, msg->hwnd), wp[0], msg->lParam);
3040 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
3047 /***********************************************************************
3048 * DispatchMessageA (USER32.@)
3050 * See DispatchMessageW.
3052 LRESULT WINAPI DispatchMessageA( const MSG* msg )
3056 /* Process timer messages */
3057 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
3059 if (msg->lParam) return CallWindowProcA( (WNDPROC)msg->lParam, msg->hwnd,
3060 msg->message, msg->wParam, GetTickCount() );
3062 if (!msg->hwnd) return 0;
3064 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
3065 msg->wParam, msg->lParam );
3067 if (!WINPROC_call_window( msg->hwnd, msg->message, msg->wParam, msg->lParam,
3068 &retval, FALSE, WMCHAR_MAP_DISPATCHMESSAGE ))
3070 if (!IsWindow( msg->hwnd )) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
3071 else SetLastError( ERROR_MESSAGE_SYNC_ONLY );
3075 SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
3076 msg->wParam, msg->lParam );
3078 if (msg->message == WM_PAINT)
3080 /* send a WM_NCPAINT and WM_ERASEBKGND if the non-client area is still invalid */
3081 HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
3082 GetUpdateRgn( msg->hwnd, hrgn, TRUE );
3083 DeleteObject( hrgn );
3089 /***********************************************************************
3090 * DispatchMessageW (USER32.@) Process a message
3092 * Process the message specified in the structure *_msg_.
3094 * If the lpMsg parameter points to a WM_TIMER message and the
3095 * parameter of the WM_TIMER message is not NULL, the lParam parameter
3096 * points to the function that is called instead of the window
3099 * The message must be valid.
3103 * DispatchMessage() returns the result of the window procedure invoked.
3110 LRESULT WINAPI DispatchMessageW( const MSG* msg )
3114 /* Process timer messages */
3115 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
3117 if (msg->lParam) return CallWindowProcW( (WNDPROC)msg->lParam, msg->hwnd,
3118 msg->message, msg->wParam, GetTickCount() );
3120 if (!msg->hwnd) return 0;
3122 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
3123 msg->wParam, msg->lParam );
3125 if (!WINPROC_call_window( msg->hwnd, msg->message, msg->wParam, msg->lParam,
3126 &retval, TRUE, WMCHAR_MAP_DISPATCHMESSAGE ))
3128 if (!IsWindow( msg->hwnd )) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
3129 else SetLastError( ERROR_MESSAGE_SYNC_ONLY );
3133 SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
3134 msg->wParam, msg->lParam );
3136 if (msg->message == WM_PAINT)
3138 /* send a WM_NCPAINT and WM_ERASEBKGND if the non-client area is still invalid */
3139 HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
3140 GetUpdateRgn( msg->hwnd, hrgn, TRUE );
3141 DeleteObject( hrgn );
3147 /***********************************************************************
3148 * GetMessagePos (USER.119)
3149 * GetMessagePos (USER32.@)
3151 * The GetMessagePos() function returns a long value representing a
3152 * cursor position, in screen coordinates, when the last message
3153 * retrieved by the GetMessage() function occurs. The x-coordinate is
3154 * in the low-order word of the return value, the y-coordinate is in
3155 * the high-order word. The application can use the MAKEPOINT()
3156 * macro to obtain a POINT structure from the return value.
3158 * For the current cursor position, use GetCursorPos().
3162 * Cursor position of last message on success, zero on failure.
3169 DWORD WINAPI GetMessagePos(void)
3171 return get_user_thread_info()->GetMessagePosVal;
3175 /***********************************************************************
3176 * GetMessageTime (USER.120)
3177 * GetMessageTime (USER32.@)
3179 * GetMessageTime() returns the message time for the last message
3180 * retrieved by the function. The time is measured in milliseconds with
3181 * the same offset as GetTickCount().
3183 * Since the tick count wraps, this is only useful for moderately short
3184 * relative time comparisons.
3188 * Time of last message on success, zero on failure.
3190 LONG WINAPI GetMessageTime(void)
3192 return get_user_thread_info()->GetMessageTimeVal;
3196 /***********************************************************************
3197 * GetMessageExtraInfo (USER.288)
3198 * GetMessageExtraInfo (USER32.@)
3200 LPARAM WINAPI GetMessageExtraInfo(void)
3202 return get_user_thread_info()->GetMessageExtraInfoVal;
3206 /***********************************************************************
3207 * SetMessageExtraInfo (USER32.@)
3209 LPARAM WINAPI SetMessageExtraInfo(LPARAM lParam)
3211 struct user_thread_info *thread_info = get_user_thread_info();
3212 LONG old_value = thread_info->GetMessageExtraInfoVal;
3213 thread_info->GetMessageExtraInfoVal = lParam;
3218 /***********************************************************************
3219 * WaitMessage (USER.112) Suspend thread pending messages
3220 * WaitMessage (USER32.@) Suspend thread pending messages
3222 * WaitMessage() suspends a thread until events appear in the thread's
3225 BOOL WINAPI WaitMessage(void)
3227 return (MsgWaitForMultipleObjectsEx( 0, NULL, INFINITE, QS_ALLINPUT, 0 ) != WAIT_FAILED);
3231 /***********************************************************************
3232 * MsgWaitForMultipleObjectsEx (USER32.@)
3234 DWORD WINAPI MsgWaitForMultipleObjectsEx( DWORD count, CONST HANDLE *pHandles,
3235 DWORD timeout, DWORD mask, DWORD flags )
3237 HANDLE handles[MAXIMUM_WAIT_OBJECTS];
3240 if (count > MAXIMUM_WAIT_OBJECTS-1)
3242 SetLastError( ERROR_INVALID_PARAMETER );
3246 /* set the queue mask */
3247 SERVER_START_REQ( set_queue_mask )
3249 req->wake_mask = (flags & MWMO_INPUTAVAILABLE) ? mask : 0;
3250 req->changed_mask = mask;
3252 wine_server_call( req );
3256 /* add the queue to the handle list */
3257 for (i = 0; i < count; i++) handles[i] = pHandles[i];
3258 handles[count] = get_server_queue_handle();
3260 ReleaseThunkLock( &lock );
3261 ret = USER_Driver->pMsgWaitForMultipleObjectsEx( count+1, handles, timeout, mask, flags );
3262 if (lock) RestoreThunkLock( lock );
3267 /***********************************************************************
3268 * MsgWaitForMultipleObjects (USER32.@)
3270 DWORD WINAPI MsgWaitForMultipleObjects( DWORD count, CONST HANDLE *handles,
3271 BOOL wait_all, DWORD timeout, DWORD mask )
3273 return MsgWaitForMultipleObjectsEx( count, handles, timeout, mask,
3274 wait_all ? MWMO_WAITALL : 0 );
3278 /***********************************************************************
3279 * WaitForInputIdle (USER32.@)
3281 DWORD WINAPI WaitForInputIdle( HANDLE hProcess, DWORD dwTimeOut )
3283 DWORD start_time, elapsed, ret;
3286 handles[0] = hProcess;
3287 SERVER_START_REQ( get_process_idle_event )
3289 req->handle = hProcess;
3290 if (!(ret = wine_server_call_err( req ))) handles[1] = 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 )
3585 req->msg = WM_TIMER;
3587 req->rate = max( timeout, SYS_TIMER_RATE );
3588 req->lparam = (unsigned long)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 )
3616 req->msg = WM_SYSTIMER;
3618 req->rate = max( timeout, SYS_TIMER_RATE );
3619 req->lparam = (unsigned long)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 )
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 )
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 = reply->active;
3686 info->hwndFocus = reply->focus;
3687 info->hwndCapture = reply->capture;
3688 info->hwndMenuOwner = reply->menu_owner;
3689 info->hwndMoveSize = reply->move_size;
3690 info->hwndCaret = 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 )
3716 ret = !wine_server_call_err( req ) && reply->is_hung;