2 * Message queues related functions
4 * Copyright 1993, 1994 Alexandre Julliard
14 #include "clipboard.h"
21 #define MAX_QUEUE_SIZE 120 /* Max. size of a message queue */
23 static HQUEUE16 hFirstQueue
= 0;
24 static HQUEUE16 hExitingQueue
= 0;
25 static HQUEUE16 hmemSysMsgQueue
= 0;
26 static MESSAGEQUEUE
*sysMsgQueue
= NULL
;
28 static MESSAGEQUEUE
*pMouseQueue
= NULL
; /* Queue for last mouse message */
29 static MESSAGEQUEUE
*pKbdQueue
= NULL
; /* Queue for last kbd message */
31 MESSAGEQUEUE
*pCursorQueue
= NULL
;
32 MESSAGEQUEUE
*pActiveQueue
= NULL
;
34 /***********************************************************************
37 void QUEUE_DumpQueue( HQUEUE16 hQueue
)
41 if (!(pq
= (MESSAGEQUEUE
*) GlobalLock16( hQueue
)) ||
42 GlobalSize16(hQueue
) < sizeof(MESSAGEQUEUE
)+pq
->queueSize
*sizeof(QMSG
))
44 WARN(msg
, "%04x is not a queue handle\n", hQueue
);
48 DUMP( "next: %12.4x Intertask SendMessage:\n"
49 "hTask: %11.4x ----------------------\n"
50 "msgSize: %9.4x hWnd: %10.4x\n"
51 "msgCount: %8.4x msg: %11.4x\n"
52 "msgNext: %9.4x wParam: %8.4x\n"
53 "msgFree: %9.4x lParam: %8.8x\n"
54 "qSize: %11.4x lRet: %10.8x\n"
55 "wWinVer: %9.4x ISMH: %10.4x\n"
56 "paints: %10.4x hSendTask: %5.4x\n"
57 "timers: %10.4x hPrevSend: %5.4x\n"
61 pq
->next
, pq
->hTask
, pq
->msgSize
, pq
->hWnd
,
62 pq
->msgCount
, pq
->msg
, pq
->nextMessage
, pq
->wParam
,
63 pq
->nextFreeMessage
, (unsigned)pq
->lParam
, pq
->queueSize
,
64 (unsigned)pq
->SendMessageReturn
, pq
->wWinVersion
, pq
->InSendMessageHandle
,
65 pq
->wPaintCount
, pq
->hSendingTask
, pq
->wTimerCount
,
66 pq
->hPrevSendingTask
, pq
->wakeBits
, pq
->wakeMask
, pq
->hCurHook
);
70 /***********************************************************************
73 void QUEUE_WalkQueues(void)
76 HQUEUE16 hQueue
= hFirstQueue
;
78 DUMP( "Queue Size Msgs Task\n" );
81 MESSAGEQUEUE
*queue
= (MESSAGEQUEUE
*)GlobalLock16( hQueue
);
84 WARN( msg
, "Bad queue handle %04x\n", hQueue
);
87 if (!GetModuleName( queue
->hTask
, module
, sizeof(module
)))
88 strcpy( module
, "???" );
89 DUMP( "%04x %5d %4d %04x %s\n", hQueue
, queue
->msgSize
,
90 queue
->msgCount
, queue
->hTask
, module
);
97 /***********************************************************************
98 * QUEUE_IsExitingQueue
100 BOOL32
QUEUE_IsExitingQueue( HQUEUE16 hQueue
)
102 return (hExitingQueue
&& (hQueue
== hExitingQueue
));
106 /***********************************************************************
107 * QUEUE_SetExitingQueue
109 void QUEUE_SetExitingQueue( HQUEUE16 hQueue
)
111 hExitingQueue
= hQueue
;
115 /***********************************************************************
116 * QUEUE_CreateMsgQueue
118 * Creates a message queue. Doesn't link it into queue list!
120 static HQUEUE16
QUEUE_CreateMsgQueue( int size
)
123 MESSAGEQUEUE
* msgQueue
;
125 TDB
*pTask
= (TDB
*)GlobalLock16( GetCurrentTask() );
127 TRACE(msg
,"Creating message queue...\n");
129 queueSize
= sizeof(MESSAGEQUEUE
) + size
* sizeof(QMSG
);
130 if (!(hQueue
= GlobalAlloc16( GMEM_FIXED
| GMEM_ZEROINIT
, queueSize
)))
132 msgQueue
= (MESSAGEQUEUE
*) GlobalLock16( hQueue
);
133 msgQueue
->self
= hQueue
;
134 msgQueue
->msgSize
= sizeof(QMSG
);
135 msgQueue
->queueSize
= size
;
136 msgQueue
->wakeBits
= msgQueue
->changeBits
= QS_SMPARAMSFREE
;
137 msgQueue
->wWinVersion
= pTask
? pTask
->version
: 0;
138 GlobalUnlock16( hQueue
);
143 /***********************************************************************
144 * QUEUE_DeleteMsgQueue
146 * Unlinks and deletes a message queue.
148 * Note: We need to mask asynchronous events to make sure PostMessage works
149 * even in the signal handler.
151 BOOL32
QUEUE_DeleteMsgQueue( HQUEUE16 hQueue
)
153 MESSAGEQUEUE
* msgQueue
= (MESSAGEQUEUE
*)GlobalLock16(hQueue
);
157 TRACE(msg
,"Deleting message queue %04x\n", hQueue
);
159 if (!hQueue
|| !msgQueue
)
161 WARN(msg
, "invalid argument.\n");
164 if( pCursorQueue
== msgQueue
) pCursorQueue
= NULL
;
165 if( pActiveQueue
== msgQueue
) pActiveQueue
= NULL
;
167 /* flush sent messages */
168 senderQ
= msgQueue
->hSendingTask
;
171 MESSAGEQUEUE
* sq
= (MESSAGEQUEUE
*)GlobalLock16(senderQ
);
173 sq
->SendMessageReturn
= 0L;
174 QUEUE_SetWakeBit( sq
, QS_SMRESULT
);
175 senderQ
= sq
->hPrevSendingTask
;
178 SIGNAL_MaskAsyncEvents( TRUE
);
180 pPrev
= &hFirstQueue
;
181 while (*pPrev
&& (*pPrev
!= hQueue
))
183 MESSAGEQUEUE
*msgQ
= (MESSAGEQUEUE
*)GlobalLock16(*pPrev
);
186 if (*pPrev
) *pPrev
= msgQueue
->next
;
189 SIGNAL_MaskAsyncEvents( FALSE
);
191 GlobalFree16( hQueue
);
196 /***********************************************************************
197 * QUEUE_CreateSysMsgQueue
199 * Create the system message queue, and set the double-click speed.
200 * Must be called only once.
202 BOOL32
QUEUE_CreateSysMsgQueue( int size
)
204 if (size
> MAX_QUEUE_SIZE
) size
= MAX_QUEUE_SIZE
;
205 else if (size
<= 0) size
= 1;
206 if (!(hmemSysMsgQueue
= QUEUE_CreateMsgQueue( size
))) return FALSE
;
207 sysMsgQueue
= (MESSAGEQUEUE
*) GlobalLock16( hmemSysMsgQueue
);
212 /***********************************************************************
215 MESSAGEQUEUE
*QUEUE_GetSysQueue(void)
220 /***********************************************************************
223 void QUEUE_Signal( HTASK16 hTask
)
229 TDB
*pTask
= (TDB
*)GlobalLock16( hTask
);
230 if ( !pTask
) return;
232 TRACE(msg
, "calling SYNC_MsgWakeUp\n");
234 /* Wake up thread waiting for message */
235 /* NOTE: This should really wake up *the* thread that owns
236 the queue. Since we dont't have thread-local message
237 queues yet, we wake up all waiting threads ... */
239 pdb
= pTask
->thdb
->process
;
240 entry
= pdb
? pdb
->thread_list
->next
: NULL
;
245 if (entry
->thread
->wait_struct
.wait_msg
)
247 SYNC_MsgWakeUp( entry
->thread
);
250 if (entry
== pdb
->thread_list
) break;
255 if ( !wakeup
&& THREAD_IsWin16( THREAD_Current() ) )
259 /***********************************************************************
262 void QUEUE_Wait( void )
264 if ( THREAD_IsWin16( THREAD_Current() ) )
268 TRACE(msg
, "current task is 32-bit, calling SYNC_DoWait\n");
269 SYNC_DoWait( 0, NULL
, FALSE
, INFINITE32
, FALSE
, TRUE
);
274 /***********************************************************************
277 * See "Windows Internals", p.449
279 void QUEUE_SetWakeBit( MESSAGEQUEUE
*queue
, WORD bit
)
281 TRACE(msg
,"queue = %04x (wm=%04x), bit = %04x\n",
282 queue
->self
, queue
->wakeMask
, bit
);
284 if (bit
& QS_MOUSE
) pMouseQueue
= queue
;
285 if (bit
& QS_KEY
) pKbdQueue
= queue
;
286 queue
->changeBits
|= bit
;
287 queue
->wakeBits
|= bit
;
288 if (queue
->wakeMask
& bit
)
291 QUEUE_Signal( queue
->hTask
);
296 /***********************************************************************
299 void QUEUE_ClearWakeBit( MESSAGEQUEUE
*queue
, WORD bit
)
301 queue
->changeBits
&= ~bit
;
302 queue
->wakeBits
&= ~bit
;
306 /***********************************************************************
309 * See "Windows Internals", p.447
311 void QUEUE_WaitBits( WORD bits
)
315 TRACE(msg
,"q %04x waiting for %04x\n", GetTaskQueue(0), bits
);
319 if (!(queue
= (MESSAGEQUEUE
*)GlobalLock16( GetTaskQueue(0) ))) return;
321 if (queue
->changeBits
& bits
)
323 /* One of the bits is set; we can return */
327 if (queue
->wakeBits
& QS_SENDMESSAGE
)
329 /* Process the sent message immediately */
332 QUEUE_ReceiveMessage( queue
);
333 continue; /* nested sm crux */
336 queue
->wakeMask
= bits
| QS_SENDMESSAGE
;
337 if(queue
->changeBits
& bits
) continue;
339 TRACE(msg
,"%04x) wakeMask is %04x, waiting\n", queue
->self
, queue
->wakeMask
);
346 /***********************************************************************
347 * QUEUE_ReceiveMessage
349 * This routine is called when a sent message is waiting for the queue.
351 void QUEUE_ReceiveMessage( MESSAGEQUEUE
*queue
)
353 MESSAGEQUEUE
*senderQ
= NULL
;
354 HQUEUE16 prevSender
= 0;
355 QSMCTRL
* prevCtrlPtr
= NULL
;
358 TRACE(msg
, "ReceiveMessage, queue %04x\n", queue
->self
);
359 if (!(queue
->wakeBits
& QS_SENDMESSAGE
) ||
360 !(senderQ
= (MESSAGEQUEUE
*)GlobalLock16( queue
->hSendingTask
)))
361 { TRACE(msg
,"\trcm: nothing to do\n"); return; }
363 if( !senderQ
->hPrevSendingTask
)
365 queue
->wakeBits
&= ~QS_SENDMESSAGE
; /* no more sent messages */
366 queue
->changeBits
&= ~QS_SENDMESSAGE
;
369 /* Save current state on stack */
370 prevSender
= queue
->InSendMessageHandle
;
371 prevCtrlPtr
= queue
->smResultCurrent
;
373 /* Remove sending queue from the list */
374 queue
->InSendMessageHandle
= queue
->hSendingTask
;
375 queue
->smResultCurrent
= senderQ
->smResultInit
;
376 queue
->hSendingTask
= senderQ
->hPrevSendingTask
;
378 TRACE(msg
, "\trcm: smResultCurrent = %08x, prevCtrl = %08x\n",
379 (unsigned)queue
->smResultCurrent
, (unsigned)prevCtrlPtr
);
380 QUEUE_SetWakeBit( senderQ
, QS_SMPARAMSFREE
);
382 TRACE(msg
, "\trcm: calling wndproc - %04x %04x %04x%04x %08x\n",
383 senderQ
->hWnd
, senderQ
->msg
, senderQ
->wParamHigh
,
384 senderQ
->wParam
, (unsigned)senderQ
->lParam
);
386 if (IsWindow32( senderQ
->hWnd
))
388 WND
*wndPtr
= WIN_FindWndPtr( senderQ
->hWnd
);
389 DWORD extraInfo
= queue
->GetMessageExtraInfoVal
;
390 queue
->GetMessageExtraInfoVal
= senderQ
->GetMessageExtraInfoVal
;
392 if (senderQ
->flags
& QUEUE_SM_WIN32
)
394 WPARAM32 wParam
= MAKELONG( senderQ
->wParam
, senderQ
->wParamHigh
);
395 TRACE(msg
, "\trcm: msg is Win32\n" );
396 if (senderQ
->flags
& QUEUE_SM_UNICODE
)
397 result
= CallWindowProc32W( wndPtr
->winproc
,
398 senderQ
->hWnd
, senderQ
->msg
,
399 wParam
, senderQ
->lParam
);
401 result
= CallWindowProc32A( wndPtr
->winproc
,
402 senderQ
->hWnd
, senderQ
->msg
,
403 wParam
, senderQ
->lParam
);
405 else /* Win16 message */
406 result
= CallWindowProc16( (WNDPROC16
)wndPtr
->winproc
,
407 senderQ
->hWnd
, senderQ
->msg
,
408 senderQ
->wParam
, senderQ
->lParam
);
410 queue
->GetMessageExtraInfoVal
= extraInfo
; /* Restore extra info */
411 TRACE(msg
,"\trcm: result = %08x\n", (unsigned)result
);
413 else WARN(msg
, "\trcm: bad hWnd\n");
415 /* Return the result to the sender task */
416 ReplyMessage16( result
);
418 queue
->InSendMessageHandle
= prevSender
;
419 queue
->smResultCurrent
= prevCtrlPtr
;
421 TRACE(msg
,"done!\n");
424 /***********************************************************************
427 * Try to reply to all pending sent messages on exit.
429 void QUEUE_FlushMessages( HQUEUE16 hQueue
)
431 MESSAGEQUEUE
*queue
= (MESSAGEQUEUE
*)GlobalLock16( hQueue
);
435 MESSAGEQUEUE
*senderQ
= (MESSAGEQUEUE
*)GlobalLock16( queue
->hSendingTask
);
436 QSMCTRL
* CtrlPtr
= queue
->smResultCurrent
;
440 if( !(queue
->hSendingTask
= senderQ
->hPrevSendingTask
) )
441 queue
->wakeBits
&= ~QS_SENDMESSAGE
;
442 QUEUE_SetWakeBit( senderQ
, QS_SMPARAMSFREE
);
444 queue
->smResultCurrent
= CtrlPtr
;
445 while( senderQ
->wakeBits
& QS_SMRESULT
) OldYield();
447 senderQ
->SendMessageReturn
= 0;
448 senderQ
->smResult
= queue
->smResultCurrent
;
449 QUEUE_SetWakeBit( senderQ
, QS_SMRESULT
);
451 if( (senderQ
= (MESSAGEQUEUE
*)GlobalLock16( queue
->hSendingTask
)) )
452 CtrlPtr
= senderQ
->smResultInit
;
454 queue
->InSendMessageHandle
= 0;
458 /***********************************************************************
461 * Add a message to the queue. Return FALSE if queue is full.
463 BOOL32
QUEUE_AddMsg( HQUEUE16 hQueue
, MSG16
* msg
, DWORD extraInfo
)
466 MESSAGEQUEUE
*msgQueue
;
468 SIGNAL_MaskAsyncEvents( TRUE
);
470 if (!(msgQueue
= (MESSAGEQUEUE
*)GlobalLock16( hQueue
))) return FALSE
;
471 pos
= msgQueue
->nextFreeMessage
;
473 /* Check if queue is full */
474 if ((pos
== msgQueue
->nextMessage
) && (msgQueue
->msgCount
> 0))
476 SIGNAL_MaskAsyncEvents( FALSE
);
477 WARN( msg
,"Queue is full!\n" );
482 msgQueue
->messages
[pos
].msg
= *msg
;
483 msgQueue
->messages
[pos
].extraInfo
= extraInfo
;
484 if (pos
< msgQueue
->queueSize
-1) pos
++;
486 msgQueue
->nextFreeMessage
= pos
;
487 msgQueue
->msgCount
++;
489 SIGNAL_MaskAsyncEvents( FALSE
);
491 QUEUE_SetWakeBit( msgQueue
, QS_POSTMESSAGE
);
496 /***********************************************************************
499 * Find a message matching the given parameters. Return -1 if none available.
501 int QUEUE_FindMsg( MESSAGEQUEUE
* msgQueue
, HWND32 hwnd
, int first
, int last
)
503 int i
, pos
= msgQueue
->nextMessage
;
505 TRACE(msg
,"hwnd=%04x pos=%d\n", hwnd
, pos
);
507 if (!msgQueue
->msgCount
) return -1;
508 if (!hwnd
&& !first
&& !last
) return pos
;
510 for (i
= 0; i
< msgQueue
->msgCount
; i
++)
512 MSG16
* msg
= &msgQueue
->messages
[pos
].msg
;
514 if (!hwnd
|| (msg
->hwnd
== hwnd
))
516 if (!first
&& !last
) return pos
;
517 if ((msg
->message
>= first
) && (msg
->message
<= last
)) return pos
;
519 if (pos
< msgQueue
->queueSize
-1) pos
++;
526 /***********************************************************************
529 * Remove a message from the queue (pos must be a valid position).
531 void QUEUE_RemoveMsg( MESSAGEQUEUE
* msgQueue
, int pos
)
533 SIGNAL_MaskAsyncEvents( TRUE
);
535 if (pos
>= msgQueue
->nextMessage
)
537 for ( ; pos
> msgQueue
->nextMessage
; pos
--)
538 msgQueue
->messages
[pos
] = msgQueue
->messages
[pos
-1];
539 msgQueue
->nextMessage
++;
540 if (msgQueue
->nextMessage
>= msgQueue
->queueSize
)
541 msgQueue
->nextMessage
= 0;
545 for ( ; pos
< msgQueue
->nextFreeMessage
; pos
++)
546 msgQueue
->messages
[pos
] = msgQueue
->messages
[pos
+1];
547 if (msgQueue
->nextFreeMessage
) msgQueue
->nextFreeMessage
--;
548 else msgQueue
->nextFreeMessage
= msgQueue
->queueSize
-1;
550 msgQueue
->msgCount
--;
551 if (!msgQueue
->msgCount
) msgQueue
->wakeBits
&= ~QS_POSTMESSAGE
;
553 SIGNAL_MaskAsyncEvents( FALSE
);
557 /***********************************************************************
560 * Wake a queue upon reception of a hardware event.
562 static void QUEUE_WakeSomeone( UINT32 message
)
567 MESSAGEQUEUE
*queue
= pCursorQueue
;
569 if( (message
>= WM_KEYFIRST
) && (message
<= WM_KEYLAST
) )
572 if( pActiveQueue
) queue
= pActiveQueue
;
576 wakeBit
= (message
== WM_MOUSEMOVE
) ? QS_MOUSEMOVE
: QS_MOUSEBUTTON
;
577 if( (hwnd
= GetCapture32()) )
578 if( (wndPtr
= WIN_FindWndPtr( hwnd
)) )
579 queue
= (MESSAGEQUEUE
*)GlobalLock16( wndPtr
->hmemTaskQ
);
582 if( (hwnd
= GetSysModalWindow16()) )
583 if( (wndPtr
= WIN_FindWndPtr( hwnd
)) )
584 queue
= (MESSAGEQUEUE
*)GlobalLock16( wndPtr
->hmemTaskQ
);
588 queue
= GlobalLock16( hFirstQueue
);
591 if (queue
->wakeMask
& wakeBit
) break;
592 queue
= GlobalLock16( queue
->next
);
596 WARN(msg
, "couldn't find queue\n");
601 QUEUE_SetWakeBit( queue
, wakeBit
);
605 /***********************************************************************
608 * Add an event to the system message queue.
609 * Note: the position is relative to the desktop window.
611 void hardware_event( WORD message
, WORD wParam
, LONG lParam
,
612 int xPos
, int yPos
, DWORD time
, DWORD extraInfo
)
617 if (!sysMsgQueue
) return;
618 pos
= sysMsgQueue
->nextFreeMessage
;
620 /* Merge with previous event if possible */
622 if ((message
== WM_MOUSEMOVE
) && sysMsgQueue
->msgCount
)
625 else pos
= sysMsgQueue
->queueSize
- 1;
626 msg
= &sysMsgQueue
->messages
[pos
].msg
;
627 if ((msg
->message
== message
) && (msg
->wParam
== wParam
))
628 sysMsgQueue
->msgCount
--; /* Merge events */
630 pos
= sysMsgQueue
->nextFreeMessage
; /* Don't merge */
633 /* Check if queue is full */
635 if ((pos
== sysMsgQueue
->nextMessage
) && sysMsgQueue
->msgCount
)
637 /* Queue is full, beep (but not on every mouse motion...) */
638 if (message
!= WM_MOUSEMOVE
) MessageBeep32(0);
644 msg
= &sysMsgQueue
->messages
[pos
].msg
;
646 msg
->message
= message
;
647 msg
->wParam
= wParam
;
648 msg
->lParam
= lParam
;
650 msg
->pt
.x
= xPos
& 0xffff;
651 msg
->pt
.y
= yPos
& 0xffff;
652 sysMsgQueue
->messages
[pos
].extraInfo
= extraInfo
;
653 if (pos
< sysMsgQueue
->queueSize
- 1) pos
++;
655 sysMsgQueue
->nextFreeMessage
= pos
;
656 sysMsgQueue
->msgCount
++;
657 QUEUE_WakeSomeone( message
);
661 /***********************************************************************
664 HTASK16
QUEUE_GetQueueTask( HQUEUE16 hQueue
)
666 MESSAGEQUEUE
*queue
= GlobalLock16( hQueue
);
667 return (queue
) ? queue
->hTask
: 0 ;
671 /***********************************************************************
672 * QUEUE_IncPaintCount
674 void QUEUE_IncPaintCount( HQUEUE16 hQueue
)
678 if (!(queue
= (MESSAGEQUEUE
*)GlobalLock16( hQueue
))) return;
679 queue
->wPaintCount
++;
680 QUEUE_SetWakeBit( queue
, QS_PAINT
);
684 /***********************************************************************
685 * QUEUE_DecPaintCount
687 void QUEUE_DecPaintCount( HQUEUE16 hQueue
)
691 if (!(queue
= (MESSAGEQUEUE
*)GlobalLock16( hQueue
))) return;
692 queue
->wPaintCount
--;
693 if (!queue
->wPaintCount
) queue
->wakeBits
&= ~QS_PAINT
;
697 /***********************************************************************
698 * QUEUE_IncTimerCount
700 void QUEUE_IncTimerCount( HQUEUE16 hQueue
)
704 if (!(queue
= (MESSAGEQUEUE
*)GlobalLock16( hQueue
))) return;
705 queue
->wTimerCount
++;
706 QUEUE_SetWakeBit( queue
, QS_TIMER
);
710 /***********************************************************************
711 * QUEUE_DecTimerCount
713 void QUEUE_DecTimerCount( HQUEUE16 hQueue
)
717 if (!(queue
= (MESSAGEQUEUE
*)GlobalLock16( hQueue
))) return;
718 queue
->wTimerCount
--;
719 if (!queue
->wTimerCount
) queue
->wakeBits
&= ~QS_TIMER
;
723 /***********************************************************************
724 * PostQuitMessage16 (USER.6)
726 void WINAPI
PostQuitMessage16( INT16 exitCode
)
728 PostQuitMessage32( exitCode
);
732 /***********************************************************************
733 * PostQuitMessage32 (USER32.421)
735 void WINAPI
PostQuitMessage32( INT32 exitCode
)
739 if (!(queue
= (MESSAGEQUEUE
*)GlobalLock16( GetTaskQueue(0) ))) return;
740 queue
->wPostQMsg
= TRUE
;
741 queue
->wExitCode
= (WORD
)exitCode
;
745 /***********************************************************************
746 * GetWindowTask16 (USER.224)
748 HTASK16 WINAPI
GetWindowTask16( HWND16 hwnd
)
750 WND
*wndPtr
= WIN_FindWndPtr( hwnd
);
752 if (!wndPtr
) return 0;
753 return QUEUE_GetQueueTask( wndPtr
->hmemTaskQ
);
756 /***********************************************************************
757 * GetWindowThreadProcessId (USER32.313)
759 DWORD WINAPI
GetWindowThreadProcessId( HWND32 hwnd
, LPDWORD process
)
764 WND
*wndPtr
= WIN_FindWndPtr( hwnd
);
766 if (!wndPtr
) return 0;
767 htask
=QUEUE_GetQueueTask( wndPtr
->hmemTaskQ
);
768 tdb
= (TDB
*)GlobalLock16(htask
);
769 if (!tdb
|| !tdb
->thdb
) return 0;
770 if (process
) *process
= PDB_TO_PROCESS_ID( tdb
->thdb
->process
);
771 return THDB_TO_THREAD_ID( tdb
->thdb
);
775 /***********************************************************************
776 * SetMessageQueue16 (USER.266)
778 BOOL16 WINAPI
SetMessageQueue16( INT16 size
)
780 return SetMessageQueue32( size
);
784 /***********************************************************************
785 * SetMessageQueue32 (USER32.494)
787 BOOL32 WINAPI
SetMessageQueue32( INT32 size
)
789 HQUEUE16 hQueue
, hNewQueue
;
790 MESSAGEQUEUE
*queuePtr
;
792 TRACE(msg
,"task %04x size %i\n", GetCurrentTask(), size
);
794 if ((size
> MAX_QUEUE_SIZE
) || (size
<= 0)) return TRUE
;
796 if( !(hNewQueue
= QUEUE_CreateMsgQueue( size
)))
798 WARN(msg
, "failed!\n");
801 queuePtr
= (MESSAGEQUEUE
*)GlobalLock16( hNewQueue
);
803 SIGNAL_MaskAsyncEvents( TRUE
);
805 /* Copy data and free the old message queue */
806 if ((hQueue
= GetTaskQueue(0)) != 0)
808 MESSAGEQUEUE
*oldQ
= (MESSAGEQUEUE
*)GlobalLock16( hQueue
);
809 memcpy( &queuePtr
->wParamHigh
, &oldQ
->wParamHigh
,
810 (int)oldQ
->messages
- (int)(&oldQ
->wParamHigh
) );
811 HOOK_ResetQueueHooks( hNewQueue
);
812 if( WIN_GetDesktop()->hmemTaskQ
== hQueue
)
813 WIN_GetDesktop()->hmemTaskQ
= hNewQueue
;
814 WIN_ResetQueueWindows( WIN_GetDesktop(), hQueue
, hNewQueue
);
815 CLIPBOARD_ResetLock( hQueue
, hNewQueue
);
816 QUEUE_DeleteMsgQueue( hQueue
);
819 /* Link new queue into list */
820 queuePtr
->hTask
= GetCurrentTask();
821 queuePtr
->next
= hFirstQueue
;
822 hFirstQueue
= hNewQueue
;
824 if( !queuePtr
->next
) pCursorQueue
= queuePtr
;
825 SetTaskQueue( 0, hNewQueue
);
827 SIGNAL_MaskAsyncEvents( FALSE
);
832 /***********************************************************************
833 * GetQueueStatus16 (USER.334)
835 DWORD WINAPI
GetQueueStatus16( UINT16 flags
)
840 if (!(queue
= (MESSAGEQUEUE
*)GlobalLock16( GetTaskQueue(0) ))) return 0;
841 ret
= MAKELONG( queue
->changeBits
, queue
->wakeBits
);
842 queue
->changeBits
= 0;
843 return ret
& MAKELONG( flags
, flags
);
846 /***********************************************************************
847 * GetQueueStatus32 (USER32.283)
849 DWORD WINAPI
GetQueueStatus32( UINT32 flags
)
854 if (!(queue
= (MESSAGEQUEUE
*)GlobalLock16( GetTaskQueue(0) ))) return 0;
855 ret
= MAKELONG( queue
->changeBits
, queue
->wakeBits
);
856 queue
->changeBits
= 0;
857 return ret
& MAKELONG( flags
, flags
);
861 /***********************************************************************
862 * GetInputState16 (USER.335)
864 BOOL16 WINAPI
GetInputState16(void)
866 return GetInputState32();
869 /***********************************************************************
870 * WaitForInputIdle (USER32.577)
872 DWORD WINAPI
WaitForInputIdle (HANDLE32 hProcess
, DWORD dwTimeOut
)
874 FIXME (msg
, "(hProcess=%d, dwTimeOut=%ld): stub\n", hProcess
, dwTimeOut
);
880 /***********************************************************************
881 * GetInputState32 (USER32.244)
883 BOOL32 WINAPI
GetInputState32(void)
887 if (!(queue
= (MESSAGEQUEUE
*)GlobalLock16( GetTaskQueue(0) )))
889 return queue
->wakeBits
& (QS_KEY
| QS_MOUSEBUTTON
);
893 /***********************************************************************
894 * GetMessagePos (USER.119) (USER32.272)
896 DWORD WINAPI
GetMessagePos(void)
900 if (!(queue
= (MESSAGEQUEUE
*)GlobalLock16( GetTaskQueue(0) ))) return 0;
901 return queue
->GetMessagePosVal
;
905 /***********************************************************************
906 * GetMessageTime (USER.120) (USER32.273)
908 LONG WINAPI
GetMessageTime(void)
912 if (!(queue
= (MESSAGEQUEUE
*)GlobalLock16( GetTaskQueue(0) ))) return 0;
913 return queue
->GetMessageTimeVal
;
917 /***********************************************************************
918 * GetMessageExtraInfo (USER.288) (USER32.271)
920 LONG WINAPI
GetMessageExtraInfo(void)
924 if (!(queue
= (MESSAGEQUEUE
*)GlobalLock16( GetTaskQueue(0) ))) return 0;
925 return queue
->GetMessageExtraInfoVal
;