2 * Message queues related functions
4 * Copyright 1993, 1994 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 #ifdef HAVE_SYS_TIME_H
27 # include <sys/time.h>
29 #include <sys/types.h>
36 #include "wine/server.h"
45 #include "wine/debug.h"
47 WINE_DEFAULT_DEBUG_CHANNEL(msg);
48 WINE_DECLARE_DEBUG_CHANNEL(key);
50 #define WM_NCMOUSEFIRST WM_NCMOUSEMOVE
51 #define WM_NCMOUSELAST WM_NCMBUTTONDBLCLK
54 /***********************************************************************
57 inline static BOOL is_keyboard_message( UINT message )
59 return (message >= WM_KEYFIRST && message <= WM_KEYLAST);
63 /***********************************************************************
66 inline static BOOL is_mouse_message( UINT message )
68 return ((message >= WM_NCMOUSEFIRST && message <= WM_NCMOUSELAST) ||
69 (message >= WM_MOUSEFIRST && message <= WM_MOUSELAST));
73 /***********************************************************************
74 * check_message_filter
76 inline static BOOL check_message_filter( const MSG *msg, HWND hwnd, UINT first, UINT last )
80 if (msg->hwnd != hwnd && !IsChild( hwnd, msg->hwnd )) return FALSE;
84 return (msg->message >= first && msg->message <= last);
90 /***********************************************************************
91 * process_sent_messages
93 * Process all pending sent messages.
95 inline static void process_sent_messages(void)
98 MSG_peek_message( &msg, 0, 0, 0, GET_MSG_REMOVE | GET_MSG_SENT_ONLY );
102 /***********************************************************************
103 * queue_hardware_message
105 * store a hardware message in the thread queue
108 static void queue_hardware_message( MSG *msg, ULONG_PTR extra_info )
110 SERVER_START_REQ( send_message )
112 req->type = MSG_HARDWARE;
113 req->id = GetWindowThreadProcessId( msg->hwnd, NULL );
114 req->win = msg->hwnd;
115 req->msg = msg->message;
116 req->wparam = msg->wParam;
117 req->lparam = msg->lParam;
120 req->time = msg->time;
121 req->info = extra_info;
123 wine_server_call( req );
130 /***********************************************************************
131 * MSG_SendParentNotify
133 * Send a WM_PARENTNOTIFY to all ancestors of the given window, unless
134 * the window has the WS_EX_NOPARENTNOTIFY style.
136 static void MSG_SendParentNotify( HWND hwnd, WORD event, WORD idChild, POINT pt )
138 /* pt has to be in the client coordinates of the parent window */
139 MapWindowPoints( 0, hwnd, &pt, 1 );
144 if (!(GetWindowLongA( hwnd, GWL_STYLE ) & WS_CHILD)) break;
145 if (GetWindowLongA( hwnd, GWL_EXSTYLE ) & WS_EX_NOPARENTNOTIFY) break;
146 if (!(parent = GetParent(hwnd))) break;
147 MapWindowPoints( hwnd, parent, &pt, 1 );
149 SendMessageA( hwnd, WM_PARENTNOTIFY,
150 MAKEWPARAM( event, idChild ), MAKELPARAM( pt.x, pt.y ) );
155 #if 0 /* this is broken for now, will require proper support in the server */
157 /***********************************************************************
158 * MSG_JournalPlayBackMsg
160 * Get an EVENTMSG struct via call JOURNALPLAYBACK hook function
162 void MSG_JournalPlayBackMsg(void)
169 wtime=HOOK_CallHooks( WH_JOURNALPLAYBACK, HC_GETNEXT, 0, (LPARAM)&tmpMsg, TRUE );
170 /* TRACE(msg,"Playback wait time =%ld\n",wtime); */
174 msg.message = tmpMsg.message;
175 msg.hwnd = tmpMsg.hwnd;
176 msg.time = tmpMsg.time;
177 if ((tmpMsg.message >= WM_KEYFIRST) && (tmpMsg.message <= WM_KEYLAST))
179 msg.wParam = tmpMsg.paramL & 0xFF;
180 msg.lParam = MAKELONG(tmpMsg.paramH&0x7ffff,tmpMsg.paramL>>8);
181 if (tmpMsg.message == WM_KEYDOWN || tmpMsg.message == WM_SYSKEYDOWN)
183 for (keyDown=i=0; i<256 && !keyDown; i++)
184 if (InputKeyStateTable[i] & 0x80)
187 msg.lParam |= 0x40000000;
188 InputKeyStateTable[msg.wParam] |= 0x80;
189 AsyncKeyStateTable[msg.wParam] |= 0x80;
191 else /* WM_KEYUP, WM_SYSKEYUP */
193 msg.lParam |= 0xC0000000;
194 InputKeyStateTable[msg.wParam] &= ~0x80;
196 if (InputKeyStateTable[VK_MENU] & 0x80)
197 msg.lParam |= 0x20000000;
198 if (tmpMsg.paramH & 0x8000) /*special_key bit*/
199 msg.lParam |= 0x01000000;
201 msg.pt.x = msg.pt.y = 0;
202 queue_hardware_message( &msg, 0 );
204 else if ((tmpMsg.message>= WM_MOUSEFIRST) && (tmpMsg.message <= WM_MOUSELAST))
206 switch (tmpMsg.message)
209 InputKeyStateTable[VK_LBUTTON] |= 0x80;
210 AsyncKeyStateTable[VK_LBUTTON] |= 0x80;
213 InputKeyStateTable[VK_LBUTTON] &= ~0x80;
216 InputKeyStateTable[VK_MBUTTON] |= 0x80;
217 AsyncKeyStateTable[VK_MBUTTON] |= 0x80;
220 InputKeyStateTable[VK_MBUTTON] &= ~0x80;
223 InputKeyStateTable[VK_RBUTTON] |= 0x80;
224 AsyncKeyStateTable[VK_RBUTTON] |= 0x80;
227 InputKeyStateTable[VK_RBUTTON] &= ~0x80;
230 SetCursorPos(tmpMsg.paramL,tmpMsg.paramH);
231 msg.lParam=MAKELONG(tmpMsg.paramL,tmpMsg.paramH);
233 if (InputKeyStateTable[VK_LBUTTON] & 0x80) msg.wParam |= MK_LBUTTON;
234 if (InputKeyStateTable[VK_MBUTTON] & 0x80) msg.wParam |= MK_MBUTTON;
235 if (InputKeyStateTable[VK_RBUTTON] & 0x80) msg.wParam |= MK_RBUTTON;
237 msg.pt.x = tmpMsg.paramL;
238 msg.pt.y = tmpMsg.paramH;
239 queue_hardware_message( &msg, 0 );
241 HOOK_CallHooks( WH_JOURNALPLAYBACK, HC_SKIP, 0, (LPARAM)&tmpMsg, TRUE );
245 if( tmpMsg.message == WM_QUEUESYNC ) HOOK_CallHooks( WH_CBT, HCBT_QS, 0, 0, TRUE );
251 /***********************************************************************
252 * process_raw_keyboard_message
254 * returns TRUE if the contents of 'msg' should be passed to the application
256 static void process_raw_keyboard_message( MSG *msg )
260 event.message = msg->message;
261 event.hwnd = msg->hwnd;
262 event.time = msg->time;
263 event.paramL = (msg->wParam & 0xFF) | (HIWORD(msg->lParam) << 8);
264 event.paramH = msg->lParam & 0x7FFF;
265 if (HIWORD(msg->lParam) & 0x0100) event.paramH |= 0x8000; /* special_key - bit */
266 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
270 /***********************************************************************
271 * process_cooked_keyboard_message
273 * returns TRUE if the contents of 'msg' should be passed to the application
275 static BOOL process_cooked_keyboard_message( MSG *msg, BOOL remove )
279 /* Handle F1 key by sending out WM_HELP message */
280 if ((msg->message == WM_KEYUP) &&
281 (msg->wParam == VK_F1) &&
282 (msg->hwnd != GetDesktopWindow()) &&
283 !MENU_IsMenuActive())
286 hi.cbSize = sizeof(HELPINFO);
287 hi.iContextType = HELPINFO_WINDOW;
288 hi.iCtrlId = GetWindowLongA( msg->hwnd, GWL_ID );
289 hi.hItemHandle = msg->hwnd;
290 hi.dwContextId = GetWindowContextHelpId( msg->hwnd );
291 hi.MousePos = msg->pt;
292 SendMessageA(msg->hwnd, WM_HELP, 0, (LPARAM)&hi);
296 if (HOOK_CallHooks( WH_KEYBOARD, remove ? HC_ACTION : HC_NOREMOVE,
297 LOWORD(msg->wParam), msg->lParam, TRUE ))
299 /* skip this message */
300 HOOK_CallHooks( WH_CBT, HCBT_KEYSKIPPED, LOWORD(msg->wParam), msg->lParam, TRUE );
307 /***********************************************************************
308 * process_raw_mouse_message
310 static void process_raw_mouse_message( MSG *msg, BOOL remove )
318 HWND hWndScope = msg->hwnd;
320 /* find the window to dispatch this mouse message to */
323 GetGUIThreadInfo( GetCurrentThreadId(), &info );
324 if (!(msg->hwnd = info.hwndCapture))
326 /* If no capture HWND, find window which contains the mouse position.
327 * Also find the position of the cursor hot spot (hittest) */
328 if (!IsWindow(hWndScope)) hWndScope = 0;
329 if (!(msg->hwnd = WINPOS_WindowFromPoint( hWndScope, msg->pt, &hittest )))
330 msg->hwnd = GetDesktopWindow();
333 event.message = msg->message;
334 event.time = msg->time;
335 event.hwnd = msg->hwnd;
336 event.paramL = msg->pt.x;
337 event.paramH = msg->pt.y;
338 HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&event, TRUE );
340 /* translate double clicks */
342 if ((msg->message == WM_LBUTTONDOWN) ||
343 (msg->message == WM_RBUTTONDOWN) ||
344 (msg->message == WM_MBUTTONDOWN))
346 BOOL update = remove;
347 /* translate double clicks -
348 * note that ...MOUSEMOVEs can slip in between
349 * ...BUTTONDOWN and ...BUTTONDBLCLK messages */
351 if ((info.flags & (GUI_INMENUMODE|GUI_INMOVESIZE)) ||
352 hittest != HTCLIENT ||
353 (GetClassLongA( msg->hwnd, GCL_STYLE ) & CS_DBLCLKS))
355 if ((msg->message == clk_msg.message) &&
356 (msg->hwnd == clk_msg.hwnd) &&
357 (msg->time - clk_msg.time < GetDoubleClickTime()) &&
358 (abs(msg->pt.x - clk_msg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
359 (abs(msg->pt.y - clk_msg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
361 msg->message += (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
369 /* update static double click conditions */
370 if (update) clk_msg = *msg;
374 /* Note: windows has no concept of a non-client wheel message */
375 if (hittest != HTCLIENT && msg->message != WM_MOUSEWHEEL)
377 msg->message += WM_NCMOUSEMOVE - WM_MOUSEMOVE;
378 msg->wParam = hittest;
382 /* coordinates don't get translated while tracking a menu */
383 /* FIXME: should differentiate popups and top-level menus */
384 if (!(info.flags & GUI_INMENUMODE)) ScreenToClient( msg->hwnd, &pt );
386 msg->lParam = MAKELONG( pt.x, pt.y );
390 /***********************************************************************
391 * process_cooked_mouse_message
393 * returns TRUE if the contents of 'msg' should be passed to the application
395 static BOOL process_cooked_mouse_message( MSG *msg, ULONG_PTR extra_info, BOOL remove )
397 MOUSEHOOKSTRUCT hook;
398 INT hittest = HTCLIENT;
399 UINT raw_message = msg->message;
402 if (msg->message >= WM_NCMOUSEFIRST && msg->message <= WM_NCMOUSELAST)
404 raw_message += WM_MOUSEFIRST - WM_NCMOUSEFIRST;
405 hittest = msg->wParam;
407 if (raw_message == WM_LBUTTONDBLCLK ||
408 raw_message == WM_RBUTTONDBLCLK ||
409 raw_message == WM_MBUTTONDBLCLK)
411 raw_message += WM_LBUTTONDOWN - WM_LBUTTONDBLCLK;
415 hook.hwnd = msg->hwnd;
416 hook.wHitTestCode = hittest;
417 hook.dwExtraInfo = extra_info;
418 if (HOOK_CallHooks( WH_MOUSE, remove ? HC_ACTION : HC_NOREMOVE,
419 msg->message, (LPARAM)&hook, TRUE ))
422 hook.hwnd = msg->hwnd;
423 hook.wHitTestCode = hittest;
424 hook.dwExtraInfo = extra_info;
425 HOOK_CallHooks( WH_CBT, HCBT_CLICKSKIPPED, msg->message, (LPARAM)&hook, TRUE );
429 if ((hittest == HTERROR) || (hittest == HTNOWHERE))
431 SendMessageA( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd,
432 MAKELONG( hittest, raw_message ));
436 if (!remove || GetCapture()) return TRUE;
440 if ((raw_message == WM_LBUTTONDOWN) ||
441 (raw_message == WM_RBUTTONDOWN) ||
442 (raw_message == WM_MBUTTONDOWN))
444 /* Send the WM_PARENTNOTIFY,
445 * note that even for double/nonclient clicks
446 * notification message is still WM_L/M/RBUTTONDOWN.
448 MSG_SendParentNotify( msg->hwnd, raw_message, 0, msg->pt );
450 /* Activate the window if needed */
452 if (msg->hwnd != GetActiveWindow())
454 HWND hwndTop = msg->hwnd;
457 if ((GetWindowLongW( hwndTop, GWL_STYLE ) & (WS_POPUP|WS_CHILD)) != WS_CHILD) break;
458 hwndTop = GetParent( hwndTop );
461 if (hwndTop && hwndTop != GetDesktopWindow())
463 LONG ret = SendMessageA( msg->hwnd, WM_MOUSEACTIVATE, (WPARAM)hwndTop,
464 MAKELONG( hittest, raw_message ) );
467 case MA_NOACTIVATEANDEAT:
472 case MA_ACTIVATEANDEAT:
477 if (!FOCUS_MouseActivate( hwndTop )) eatMsg = TRUE;
480 WARN( "unknown WM_MOUSEACTIVATE code %ld\n", ret );
487 /* send the WM_SETCURSOR message */
489 /* Windows sends the normal mouse message as the message parameter
490 in the WM_SETCURSOR message even if it's non-client mouse message */
491 SendMessageA( msg->hwnd, WM_SETCURSOR, (WPARAM)msg->hwnd,
492 MAKELONG( hittest, raw_message ));
498 /***********************************************************************
499 * process_hardware_message
501 * returns TRUE if the contents of 'msg' should be passed to the application
503 BOOL MSG_process_raw_hardware_message( MSG *msg, ULONG_PTR extra_info, HWND hwnd_filter,
504 UINT first, UINT last, BOOL remove )
506 if (is_keyboard_message( msg->message ))
508 process_raw_keyboard_message( msg );
510 else if (is_mouse_message( msg->message ))
512 process_raw_mouse_message( msg, remove );
516 ERR( "unknown message type %x\n", msg->message );
519 return check_message_filter( msg, hwnd_filter, first, last );
523 /***********************************************************************
524 * MSG_process_cooked_hardware_message
526 * returns TRUE if the contents of 'msg' should be passed to the application
528 BOOL MSG_process_cooked_hardware_message( MSG *msg, ULONG_PTR extra_info, BOOL remove )
530 if (is_keyboard_message( msg->message ))
531 return process_cooked_keyboard_message( msg, remove );
533 if (is_mouse_message( msg->message ))
534 return process_cooked_mouse_message( msg, extra_info, remove );
536 ERR( "unknown message type %x\n", msg->message );
541 /***********************************************************************
542 * WaitMessage (USER.112) Suspend thread pending messages
543 * WaitMessage (USER32.@) Suspend thread pending messages
545 * WaitMessage() suspends a thread until events appear in the thread's
548 BOOL WINAPI WaitMessage(void)
550 return (MsgWaitForMultipleObjectsEx( 0, NULL, INFINITE, QS_ALLINPUT, 0 ) != WAIT_FAILED);
554 /***********************************************************************
555 * MsgWaitForMultipleObjectsEx (USER32.@)
557 DWORD WINAPI MsgWaitForMultipleObjectsEx( DWORD count, CONST HANDLE *pHandles,
558 DWORD timeout, DWORD mask, DWORD flags )
560 HANDLE handles[MAXIMUM_WAIT_OBJECTS];
562 MESSAGEQUEUE *msgQueue;
564 if (count > MAXIMUM_WAIT_OBJECTS-1)
566 SetLastError( ERROR_INVALID_PARAMETER );
570 if (!(msgQueue = QUEUE_Current())) return WAIT_FAILED;
572 /* set the queue mask */
573 SERVER_START_REQ( set_queue_mask )
575 req->wake_mask = (flags & MWMO_INPUTAVAILABLE) ? mask : 0;
576 req->changed_mask = mask;
578 wine_server_call( req );
582 /* Add the thread event to the handle list */
583 for (i = 0; i < count; i++) handles[i] = pHandles[i];
584 handles[count] = msgQueue->server_queue;
586 ReleaseThunkLock( &lock );
587 if (USER_Driver.pMsgWaitForMultipleObjectsEx)
589 ret = USER_Driver.pMsgWaitForMultipleObjectsEx( count+1, handles, timeout, mask, flags );
590 if (ret == count+1) ret = count; /* pretend the msg queue is ready */
593 ret = WaitForMultipleObjectsEx( count+1, handles, flags & MWMO_WAITALL,
594 timeout, flags & MWMO_ALERTABLE );
595 if (lock) RestoreThunkLock( lock );
600 /***********************************************************************
601 * MsgWaitForMultipleObjects (USER32.@)
603 DWORD WINAPI MsgWaitForMultipleObjects( DWORD count, CONST HANDLE *handles,
604 BOOL wait_all, DWORD timeout, DWORD mask )
606 return MsgWaitForMultipleObjectsEx( count, handles, timeout, mask,
607 wait_all ? MWMO_WAITALL : 0 );
611 /***********************************************************************
612 * WaitForInputIdle (USER32.@)
614 DWORD WINAPI WaitForInputIdle( HANDLE hProcess, DWORD dwTimeOut )
616 DWORD start_time, elapsed, ret;
617 HANDLE idle_event = (HANDLE)-1;
619 SERVER_START_REQ( wait_input_idle )
621 req->handle = hProcess;
622 req->timeout = dwTimeOut;
623 if (!(ret = wine_server_call_err( req ))) idle_event = reply->event;
626 if (ret) return WAIT_FAILED; /* error */
627 if (!idle_event) return 0; /* no event to wait on */
629 start_time = GetTickCount();
632 TRACE("waiting for %p\n", idle_event );
635 ret = MsgWaitForMultipleObjects ( 1, &idle_event, FALSE, dwTimeOut - elapsed, QS_SENDMESSAGE );
638 case WAIT_OBJECT_0+1:
639 process_sent_messages();
643 TRACE("timeout or error\n");
649 if (dwTimeOut != INFINITE)
651 elapsed = GetTickCount() - start_time;
652 if (elapsed > dwTimeOut)
662 /***********************************************************************
663 * UserYield (USER.332)
665 void WINAPI UserYield16(void)
669 /* Handle sent messages */
670 process_sent_messages();
673 ReleaseThunkLock(&count);
676 RestoreThunkLock(count);
677 /* Handle sent messages again */
678 process_sent_messages();
683 /***********************************************************************
684 * TranslateMessage (USER32.@)
686 * Implementation of TranslateMessage.
688 * TranslateMessage translates virtual-key messages into character-messages,
690 * WM_KEYDOWN/WM_KEYUP combinations produce a WM_CHAR or WM_DEADCHAR message.
691 * ditto replacing WM_* with WM_SYS*
692 * This produces WM_CHAR messages only for keys mapped to ASCII characters
693 * by the keyboard driver.
695 * If the message is WM_KEYDOWN, WM_KEYUP, WM_SYSKEYDOWN, or WM_SYSKEYUP, the
696 * return value is nonzero, regardless of the translation.
699 BOOL WINAPI TranslateMessage( const MSG *msg )
706 if (msg->message >= WM_KEYFIRST && msg->message <= WM_KEYLAST)
708 TRACE_(key)("(%s, %04X, %08lX)\n",
709 SPY_GetMsgName(msg->message, msg->hwnd), msg->wParam, msg->lParam );
711 /* Return code must be TRUE no matter what! */
715 if ((msg->message != WM_KEYDOWN) && (msg->message != WM_SYSKEYDOWN)) return rc;
717 TRACE_(key)("Translating key %s (%04x), scancode %02x\n",
718 SPY_GetVKeyName(msg->wParam), msg->wParam, LOBYTE(HIWORD(msg->lParam)));
720 GetKeyboardState( state );
721 /* FIXME : should handle ToUnicode yielding 2 */
722 switch (ToUnicode(msg->wParam, HIWORD(msg->lParam), state, wp, 2, 0))
725 message = (msg->message == WM_KEYDOWN) ? WM_CHAR : WM_SYSCHAR;
726 TRACE_(key)("1 -> PostMessage(%s)\n", SPY_GetMsgName(message, msg->hwnd));
727 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
731 message = (msg->message == WM_KEYDOWN) ? WM_DEADCHAR : WM_SYSDEADCHAR;
732 TRACE_(key)("-1 -> PostMessage(%s)\n", SPY_GetMsgName(message, msg->hwnd));
733 PostMessageW( msg->hwnd, message, wp[0], msg->lParam );
740 /***********************************************************************
741 * DispatchMessageA (USER32.@)
743 LONG WINAPI DispatchMessageA( const MSG* msg )
750 /* Process timer messages */
751 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
755 /* HOOK_CallHooks32A( WH_CALLWNDPROC, HC_ACTION, 0, FIXME ); */
757 /* before calling window proc, verify whether timer is still valid;
758 there's a slim chance that the application kills the timer
759 between GetMessage and DispatchMessage API calls */
760 if (!TIMER_IsTimerValid(msg->hwnd, (UINT) msg->wParam, (WNDPROC)msg->lParam))
761 return 0; /* invalid winproc */
763 return CallWindowProcA( (WNDPROC)msg->lParam, msg->hwnd,
764 msg->message, msg->wParam, GetTickCount() );
768 if (!(wndPtr = WIN_GetPtr( msg->hwnd )))
770 if (msg->hwnd) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
773 if (wndPtr == WND_OTHER_PROCESS)
775 if (IsWindow( msg->hwnd ))
776 ERR( "cannot dispatch msg to other process window %p\n", msg->hwnd );
777 SetLastError( ERROR_INVALID_WINDOW_HANDLE );
780 if (!(winproc = wndPtr->winproc))
782 WIN_ReleasePtr( wndPtr );
785 painting = (msg->message == WM_PAINT);
786 if (painting) wndPtr->flags |= WIN_NEEDS_BEGINPAINT;
787 WIN_ReleasePtr( wndPtr );
788 /* hook_CallHooks32A( WH_CALLWNDPROC, HC_ACTION, 0, FIXME ); */
790 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
791 msg->wParam, msg->lParam );
792 retval = CallWindowProcA( winproc, msg->hwnd, msg->message,
793 msg->wParam, msg->lParam );
794 SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
795 msg->wParam, msg->lParam );
797 if (painting && (wndPtr = WIN_GetPtr( msg->hwnd )) && (wndPtr != WND_OTHER_PROCESS))
799 BOOL validate = ((wndPtr->flags & WIN_NEEDS_BEGINPAINT) && wndPtr->hrgnUpdate);
800 wndPtr->flags &= ~WIN_NEEDS_BEGINPAINT;
801 WIN_ReleasePtr( wndPtr );
804 ERR( "BeginPaint not called on WM_PAINT for hwnd %p!\n", msg->hwnd );
805 /* Validate the update region to avoid infinite WM_PAINT loop */
806 RedrawWindow( msg->hwnd, NULL, 0,
807 RDW_NOFRAME | RDW_VALIDATE | RDW_NOCHILDREN | RDW_NOINTERNALPAINT );
814 /***********************************************************************
815 * DispatchMessageW (USER32.@) Process Message
817 * Process the message specified in the structure *_msg_.
819 * If the lpMsg parameter points to a WM_TIMER message and the
820 * parameter of the WM_TIMER message is not NULL, the lParam parameter
821 * points to the function that is called instead of the window
824 * The message must be valid.
828 * DispatchMessage() returns the result of the window procedure invoked.
835 LONG WINAPI DispatchMessageW( const MSG* msg )
842 /* Process timer messages */
843 if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
847 /* HOOK_CallHooks32W( WH_CALLWNDPROC, HC_ACTION, 0, FIXME ); */
849 /* before calling window proc, verify whether timer is still valid;
850 there's a slim chance that the application kills the timer
851 between GetMessage and DispatchMessage API calls */
852 if (!TIMER_IsTimerValid(msg->hwnd, (UINT) msg->wParam, (WNDPROC)msg->lParam))
853 return 0; /* invalid winproc */
855 return CallWindowProcW( (WNDPROC)msg->lParam, msg->hwnd,
856 msg->message, msg->wParam, GetTickCount() );
860 if (!(wndPtr = WIN_GetPtr( msg->hwnd )))
862 if (msg->hwnd) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
865 if (wndPtr == WND_OTHER_PROCESS)
867 if (IsWindow( msg->hwnd ))
868 ERR( "cannot dispatch msg to other process window %p\n", msg->hwnd );
869 SetLastError( ERROR_INVALID_WINDOW_HANDLE );
872 if (!(winproc = wndPtr->winproc))
874 WIN_ReleasePtr( wndPtr );
877 painting = (msg->message == WM_PAINT);
878 if (painting) wndPtr->flags |= WIN_NEEDS_BEGINPAINT;
879 WIN_ReleasePtr( wndPtr );
880 /* HOOK_CallHooks32W( WH_CALLWNDPROC, HC_ACTION, 0, FIXME ); */
882 SPY_EnterMessage( SPY_DISPATCHMESSAGE, msg->hwnd, msg->message,
883 msg->wParam, msg->lParam );
884 retval = CallWindowProcW( winproc, msg->hwnd, msg->message,
885 msg->wParam, msg->lParam );
886 SPY_ExitMessage( SPY_RESULT_OK, msg->hwnd, msg->message, retval,
887 msg->wParam, msg->lParam );
889 if (painting && (wndPtr = WIN_GetPtr( msg->hwnd )) && (wndPtr != WND_OTHER_PROCESS))
891 BOOL validate = ((wndPtr->flags & WIN_NEEDS_BEGINPAINT) && wndPtr->hrgnUpdate);
892 wndPtr->flags &= ~WIN_NEEDS_BEGINPAINT;
893 WIN_ReleasePtr( wndPtr );
896 ERR( "BeginPaint not called on WM_PAINT for hwnd %p!\n", msg->hwnd );
897 /* Validate the update region to avoid infinite WM_PAINT loop */
898 RedrawWindow( msg->hwnd, NULL, 0,
899 RDW_NOFRAME | RDW_VALIDATE | RDW_NOCHILDREN | RDW_NOINTERNALPAINT );
906 /***********************************************************************
907 * RegisterWindowMessage (USER.118)
908 * RegisterWindowMessageA (USER32.@)
910 WORD WINAPI RegisterWindowMessageA( LPCSTR str )
913 return GlobalAddAtomA( str );
917 /***********************************************************************
918 * RegisterWindowMessageW (USER32.@)
920 WORD WINAPI RegisterWindowMessageW( LPCWSTR str )
923 return GlobalAddAtomW( str );
927 /***********************************************************************
928 * BroadcastSystemMessage (USER32.@)
929 * BroadcastSystemMessageA (USER32.@)
931 LONG WINAPI BroadcastSystemMessage(
932 DWORD dwFlags,LPDWORD recipients,UINT uMessage,WPARAM wParam,
935 if ((*recipients & BSM_APPLICATIONS)||
936 (*recipients == BSM_ALLCOMPONENTS))
938 FIXME("(%08lx,%08lx,%08x,%08x,%08lx): semi-stub!\n",
939 dwFlags,*recipients,uMessage,wParam,lParam);
940 PostMessageA(HWND_BROADCAST,uMessage,wParam,lParam);
945 FIXME("(%08lx,%08lx,%08x,%08x,%08lx): stub!\n",
946 dwFlags,*recipients,uMessage,wParam,lParam);