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Fixed OleLoadFromStream: Dereference ppvObj and get IPersistStream
[wine.git] / windows / win.c
blob64cf61e7698ec8f68d004b2297fa00b0f4f1d390
1 /*
2 * Window related functions
3 *
4 * Copyright 1993, 1994 Alexandre Julliard
5 */
6
7 #include <stdlib.h>
8 #include <string.h>
9 #include "windef.h"
10 #include "wingdi.h"
11 #include "wine/winbase16.h"
12 #include "wine/winuser16.h"
13 #include "wine/unicode.h"
14 #include "options.h"
15 #include "class.h"
16 #include "win.h"
17 #include "heap.h"
18 #include "user.h"
19 #include "dce.h"
20 #include "cursoricon.h"
21 #include "hook.h"
22 #include "menu.h"
23 #include "message.h"
24 #include "nonclient.h"
25 #include "queue.h"
26 #include "winpos.h"
27 #include "clipboard.h"
28 #include "winproc.h"
29 #include "task.h"
30 #include "thread.h"
31 #include "winerror.h"
32 #include "mdi.h"
33 #include "local.h"
34 #include "syslevel.h"
35 #include "stackframe.h"
36 #include "debugtools.h"
37
38 DEFAULT_DEBUG_CHANNEL(win);
39 DECLARE_DEBUG_CHANNEL(msg);
40
41 /**********************************************************************/
42
43 WND_DRIVER *WND_Driver = NULL;
44
45 /* Desktop window */
46 static WND *pWndDesktop = NULL;
47
48 static HWND hwndSysModal = 0;
49
50 static WORD wDragWidth = 4;
51 static WORD wDragHeight= 3;
52
53 /* thread safeness */
54 static SYSLEVEL WIN_SysLevel;
55
56 /***********************************************************************
57 * WIN_Init
58 */
59 void WIN_Init( void )
60 {
61 /* Initialisation of the critical section for thread safeness */
62 _CreateSysLevel( &WIN_SysLevel, 2 );
63 }
64
65 /***********************************************************************
66 * WIN_LockWnds
67 *
68 * Locks access to all WND structures for thread safeness
69 */
70 void WIN_LockWnds( void )
71 {
72 _EnterSysLevel( &WIN_SysLevel );
73 }
74
75 /***********************************************************************
76 * WIN_UnlockWnds
77 *
78 * Unlocks access to all WND structures
79 */
80 void WIN_UnlockWnds( void )
81 {
82 _LeaveSysLevel( &WIN_SysLevel );
83 }
84
85 /***********************************************************************
86 * WIN_SuspendWndsLock
87 *
88 * Suspend the lock on WND structures.
89 * Returns the number of locks suspended
90 */
91 int WIN_SuspendWndsLock( void )
92 {
93 int isuspendedLocks = _ConfirmSysLevel( &WIN_SysLevel );
94 int count = isuspendedLocks;
95
96 while ( count-- > 0 )
97 _LeaveSysLevel( &WIN_SysLevel );
98
99 return isuspendedLocks;
100 }
101
102 /***********************************************************************
103 * WIN_RestoreWndsLock
104 *
105 * Restore the suspended locks on WND structures
106 */
107 void WIN_RestoreWndsLock( int ipreviousLocks )
108 {
109 while ( ipreviousLocks-- > 0 )
110 _EnterSysLevel( &WIN_SysLevel );
111 }
112
113 /***********************************************************************
114 * WIN_FindWndPtr
115 *
116 * Return a pointer to the WND structure corresponding to a HWND.
117 */
118 WND * WIN_FindWndPtr( HWND hwnd )
119 {
120 WND * ptr;
121
122 if (!hwnd || HIWORD(hwnd)) goto error2;
123 ptr = (WND *) USER_HEAP_LIN_ADDR( hwnd );
124 /* Lock all WND structures for thread safeness*/
125 WIN_LockWnds();
126 /*and increment destruction monitoring*/
127 ptr->irefCount++;
128
129 if (ptr->dwMagic != WND_MAGIC) goto error;
130 if (ptr->hwndSelf != hwnd)
131 {
132 ERR("Can't happen: hwnd %04x self pointer is %04x\n",hwnd, ptr->hwndSelf );
133 goto error;
134 }
135 /* returns a locked pointer */
136 return ptr;
137 error:
138 /* Unlock all WND structures for thread safeness*/
139 WIN_UnlockWnds();
140 /* and decrement destruction monitoring value */
141 ptr->irefCount--;
142
143 error2:
144 if ( hwnd!=0 )
145 SetLastError( ERROR_INVALID_WINDOW_HANDLE );
146 return NULL;
147 }
148
149 /***********************************************************************
150 * WIN_LockWndPtr
151 *
152 * Use in case the wnd ptr is not initialized with WIN_FindWndPtr
153 * but by initWndPtr;
154 * Returns the locked initialisation pointer
155 */
156 WND *WIN_LockWndPtr(WND *initWndPtr)
157 {
158 if(!initWndPtr) return 0;
159
160 /* Lock all WND structures for thread safeness*/
161 WIN_LockWnds();
162 /*and increment destruction monitoring*/
163 initWndPtr->irefCount++;
164
165 return initWndPtr;
166
167 }
168
169 /***********************************************************************
170 * WIN_ReleaseWndPtr
171 *
172 * Release the pointer to the WND structure.
173 */
174 void WIN_ReleaseWndPtr(WND *wndPtr)
175 {
176 if(!wndPtr) return;
177
178 /*Decrement destruction monitoring value*/
179 wndPtr->irefCount--;
180 /* Check if it's time to release the memory*/
181 if(wndPtr->irefCount == 0 && !wndPtr->dwMagic)
182 {
183 /* Release memory */
184 USER_HEAP_FREE( wndPtr->hwndSelf);
185 wndPtr->hwndSelf = 0;
186 }
187 else if(wndPtr->irefCount < 0)
188 {
189 /* This else if is useful to monitor the WIN_ReleaseWndPtr function */
190 ERR("forgot a Lock on %p somewhere\n",wndPtr);
191 }
192 /*unlock all WND structures for thread safeness*/
193 WIN_UnlockWnds();
194 }
195
196 /***********************************************************************
197 * WIN_UpdateWndPtr
198 *
199 * Updates the value of oldPtr to newPtr.
200 */
201 void WIN_UpdateWndPtr(WND **oldPtr, WND *newPtr)
202 {
203 WND *tmpWnd = NULL;
204
205 tmpWnd = WIN_LockWndPtr(newPtr);
206 WIN_ReleaseWndPtr(*oldPtr);
207 *oldPtr = tmpWnd;
208
209 }
210
211 /***********************************************************************
212 * WIN_DumpWindow
213 *
214 * Dump the content of a window structure to stderr.
215 */
216 void WIN_DumpWindow( HWND hwnd )
217 {
218 WND *ptr;
219 char className[80];
220 int i;
221
222 if (!(ptr = WIN_FindWndPtr( hwnd )))
223 {
224 WARN("%04x is not a window handle\n", hwnd );
225 return;
226 }
227
228 if (!GetClassNameA( hwnd, className, sizeof(className ) ))
229 strcpy( className, "#NULL#" );
230
231 TRACE("Window %04x (%p):\n", hwnd, ptr );
232 DPRINTF( "next=%p child=%p parent=%p owner=%p class=%p '%s'\n"
233 "inst=%04x taskQ=%04x updRgn=%04x active=%04x dce=%p idmenu=%08x\n"
234 "style=%08lx exstyle=%08lx wndproc=%08x text='%s'\n"
235 "client=%d,%d-%d,%d window=%d,%d-%d,%d"
236 "sysmenu=%04x flags=%04x props=%p vscroll=%p hscroll=%p\n",
237 ptr->next, ptr->child, ptr->parent, ptr->owner,
238 ptr->class, className, ptr->hInstance, ptr->hmemTaskQ,
239 ptr->hrgnUpdate, ptr->hwndLastActive, ptr->dce, ptr->wIDmenu,
240 ptr->dwStyle, ptr->dwExStyle, (UINT)ptr->winproc,
241 ptr->text ? debugstr_w(ptr->text) : "",
242 ptr->rectClient.left, ptr->rectClient.top, ptr->rectClient.right,
243 ptr->rectClient.bottom, ptr->rectWindow.left, ptr->rectWindow.top,
244 ptr->rectWindow.right, ptr->rectWindow.bottom, ptr->hSysMenu,
245 ptr->flags, ptr->pProp, ptr->pVScroll, ptr->pHScroll );
246
247 if (ptr->class->cbWndExtra)
248 {
249 DPRINTF( "extra bytes:" );
250 for (i = 0; i < ptr->class->cbWndExtra; i++)
251 DPRINTF( " %02x", *((BYTE*)ptr->wExtra+i) );
252 DPRINTF( "\n" );
253 }
254 DPRINTF( "\n" );
255 WIN_ReleaseWndPtr(ptr);
256 }
257
258
259 /***********************************************************************
260 * WIN_WalkWindows
261 *
262 * Walk the windows tree and print each window on stderr.
263 */
264 void WIN_WalkWindows( HWND hwnd, int indent )
265 {
266 WND *ptr;
267 char className[80];
268
269 ptr = hwnd ? WIN_FindWndPtr( hwnd ) : WIN_GetDesktop();
270
271 if (!ptr)
272 {
273 WARN("Invalid window handle %04x\n", hwnd );
274 return;
275 }
276
277 if (!indent) /* first time around */
278 DPRINTF( "%-16.16s %-8.8s %-6.6s %-17.17s %-8.8s %s\n",
279 "hwnd", " wndPtr", "queue", "Class Name", " Style", " WndProc"
280 " Text");
281
282 while (ptr)
283 {
284 DPRINTF( "%*s%04x%*s", indent, "", ptr->hwndSelf, 13-indent,"");
285
286 GlobalGetAtomNameA(ptr->class->atomName,className,sizeof(className));
287
288 DPRINTF( "%08lx %-6.4x %-17.17s %08x %08x %.14s\n",
289 (DWORD)ptr, ptr->hmemTaskQ, className,
290 (UINT)ptr->dwStyle, (UINT)ptr->winproc,
291 ptr->text ? debugstr_w(ptr->text) : "<null>");
292
293 if (ptr->child) WIN_WalkWindows( ptr->child->hwndSelf, indent+1 );
294 WIN_UpdateWndPtr(&ptr,ptr->next);
295
296 }
297
298 }
299
300 /***********************************************************************
301 * WIN_UnlinkWindow
302 *
303 * Remove a window from the siblings linked list.
304 */
305 BOOL WIN_UnlinkWindow( HWND hwnd )
306 {
307 WND *wndPtr, **ppWnd;
308 BOOL ret = FALSE;
309
310 if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
311 else if(!wndPtr->parent)
312 {
313 WIN_ReleaseWndPtr(wndPtr);
314 return FALSE;
315 }
316
317 ppWnd = &wndPtr->parent->child;
318 while (*ppWnd && *ppWnd != wndPtr) ppWnd = &(*ppWnd)->next;
319 if (*ppWnd)
320 {
321 *ppWnd = wndPtr->next;
322 ret = TRUE;
323 }
324 WIN_ReleaseWndPtr(wndPtr);
325 return ret;
326 }
327
328
329 /***********************************************************************
330 * WIN_LinkWindow
331 *
332 * Insert a window into the siblings linked list.
333 * The window is inserted after the specified window, which can also
334 * be specified as HWND_TOP or HWND_BOTTOM.
335 */
336 BOOL WIN_LinkWindow( HWND hwnd, HWND hwndInsertAfter )
337 {
338 WND *wndPtr, **ppWnd;
339
340 if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
341 else if(!wndPtr->parent)
342 {
343 WIN_ReleaseWndPtr(wndPtr);
344 return FALSE;
345 }
346 if ((hwndInsertAfter == HWND_TOP) || (hwndInsertAfter == HWND_BOTTOM))
347 {
348 ppWnd = &wndPtr->parent->child; /* Point to first sibling hwnd */
349 if (hwndInsertAfter == HWND_BOTTOM) /* Find last sibling hwnd */
350 while (*ppWnd) ppWnd = &(*ppWnd)->next;
351 }
352 else /* Normal case */
353 {
354 WND * afterPtr = WIN_FindWndPtr( hwndInsertAfter );
355 if (!afterPtr)
356 {
357 WIN_ReleaseWndPtr(wndPtr);
358 return FALSE;
359 }
360 ppWnd = &afterPtr->next;
361 WIN_ReleaseWndPtr(afterPtr);
362 }
363 wndPtr->next = *ppWnd;
364 *ppWnd = wndPtr;
365 WIN_ReleaseWndPtr(wndPtr);
366 return TRUE;
367 }
368
369
370 /***********************************************************************
371 * WIN_FindWinToRepaint
372 *
373 * Find a window that needs repaint.
374 */
375 HWND WIN_FindWinToRepaint( HWND hwnd, HQUEUE16 hQueue )
376 {
377 HWND hwndRet;
378 WND *pWnd;
379
380 /* Note: the desktop window never gets WM_PAINT messages
381 * The real reason why is because Windows DesktopWndProc
382 * does ValidateRgn inside WM_ERASEBKGND handler.
383 */
384
385 pWnd = hwnd ? WIN_FindWndPtr(hwnd) : WIN_LockWndPtr(pWndDesktop->child);
386
387 for ( ; pWnd ; WIN_UpdateWndPtr(&pWnd,pWnd->next))
388 {
389 if (!(pWnd->dwStyle & WS_VISIBLE))
390 {
391 TRACE("skipping window %04x\n",
392 pWnd->hwndSelf );
393 }
394 else if ((pWnd->hmemTaskQ == hQueue) &&
395 (pWnd->hrgnUpdate || (pWnd->flags & WIN_INTERNAL_PAINT)))
396 break;
397
398 else if (pWnd->child )
399 if ((hwndRet = WIN_FindWinToRepaint( pWnd->child->hwndSelf, hQueue )) )
400 {
401 WIN_ReleaseWndPtr(pWnd);
402 return hwndRet;
403 }
404
405 }
406
407 if(!pWnd)
408 {
409 return 0;
410 }
411
412 hwndRet = pWnd->hwndSelf;
413
414 /* look among siblings if we got a transparent window */
415 while (pWnd && ((pWnd->dwExStyle & WS_EX_TRANSPARENT) ||
416 !(pWnd->hrgnUpdate || (pWnd->flags & WIN_INTERNAL_PAINT))))
417 {
418 WIN_UpdateWndPtr(&pWnd,pWnd->next);
419 }
420 if (pWnd)
421 {
422 hwndRet = pWnd->hwndSelf;
423 WIN_ReleaseWndPtr(pWnd);
424 }
425 TRACE("found %04x\n",hwndRet);
426 return hwndRet;
427 }
428
429
430 /***********************************************************************
431 * WIN_DestroyWindow
432 *
433 * Destroy storage associated to a window. "Internals" p.358
434 * returns a locked wndPtr->next
435 */
436 static WND* WIN_DestroyWindow( WND* wndPtr )
437 {
438 HWND hwnd = wndPtr->hwndSelf;
439 WND *pWnd;
440
441 TRACE("%04x\n", wndPtr->hwndSelf );
442
443 /* free child windows */
444 WIN_LockWndPtr(wndPtr->child);
445 while ((pWnd = wndPtr->child))
446 {
447 wndPtr->child = WIN_DestroyWindow( pWnd );
448 WIN_ReleaseWndPtr(pWnd);
449 }
450
451 /*
452 * Clear the update region to make sure no WM_PAINT messages will be
453 * generated for this window while processing the WM_NCDESTROY.
454 */
455 if ((wndPtr->hrgnUpdate) || (wndPtr->flags & WIN_INTERNAL_PAINT))
456 {
457 if (wndPtr->hrgnUpdate > 1)
458 DeleteObject( wndPtr->hrgnUpdate );
459
460 QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
461
462 wndPtr->hrgnUpdate = 0;
463 }
464
465 /*
466 * Send the WM_NCDESTROY to the window being destroyed.
467 */
468 SendMessageA( wndPtr->hwndSelf, WM_NCDESTROY, 0, 0);
469
470 /* FIXME: do we need to fake QS_MOUSEMOVE wakebit? */
471
472 WINPOS_CheckInternalPos( wndPtr );
473 if( hwnd == GetCapture()) ReleaseCapture();
474
475 /* free resources associated with the window */
476
477 TIMER_RemoveWindowTimers( wndPtr->hwndSelf );
478 PROPERTY_RemoveWindowProps( wndPtr );
479
480 wndPtr->dwMagic = 0; /* Mark it as invalid */
481
482 /* toss stale messages from the queue */
483
484 if( wndPtr->hmemTaskQ )
485 {
486 BOOL bPostQuit = FALSE;
487 WPARAM wQuitParam = 0;
488 MESSAGEQUEUE* msgQ = (MESSAGEQUEUE*) QUEUE_Lock(wndPtr->hmemTaskQ);
489 QMSG *qmsg;
490
491 while( (qmsg = QUEUE_FindMsg(msgQ, hwnd, 0, 0)) != 0 )
492 {
493 if( qmsg->msg.message == WM_QUIT )
494 {
495 bPostQuit = TRUE;
496 wQuitParam = qmsg->msg.wParam;
497 }
498 QUEUE_RemoveMsg(msgQ, qmsg);
499 }
500
501 QUEUE_Unlock(msgQ);
502
503 /* repost WM_QUIT to make sure this app exits its message loop */
504 if( bPostQuit ) PostQuitMessage(wQuitParam);
505 wndPtr->hmemTaskQ = 0;
506 }
507
508 if (!(wndPtr->dwStyle & WS_CHILD))
509 if (wndPtr->wIDmenu)
510 {
511 DestroyMenu( wndPtr->wIDmenu );
512 wndPtr->wIDmenu = 0;
513 }
514 if (wndPtr->hSysMenu)
515 {
516 DestroyMenu( wndPtr->hSysMenu );
517 wndPtr->hSysMenu = 0;
518 }
519 wndPtr->pDriver->pDestroyWindow( wndPtr );
520 DCE_FreeWindowDCE( wndPtr ); /* Always do this to catch orphaned DCs */
521 WINPROC_FreeProc( wndPtr->winproc, WIN_PROC_WINDOW );
522 wndPtr->class->cWindows--;
523 wndPtr->class = NULL;
524
525 WIN_UpdateWndPtr(&pWnd,wndPtr->next);
526
527 wndPtr->pDriver->pFinalize(wndPtr);
528
529 return pWnd;
530 }
531
532 /***********************************************************************
533 * WIN_ResetQueueWindows
534 *
535 * Reset the queue of all the children of a given window.
536 * Return TRUE if something was done.
537 */
538 BOOL WIN_ResetQueueWindows( WND* wnd, HQUEUE16 hQueue, HQUEUE16 hNew )
539 {
540 BOOL ret = FALSE;
541
542 if (hNew) /* Set a new queue */
543 {
544 for (wnd = WIN_LockWndPtr(wnd->child); (wnd);WIN_UpdateWndPtr(&wnd,wnd->next))
545 {
546 if (wnd->hmemTaskQ == hQueue)
547 {
548 wnd->hmemTaskQ = hNew;
549 ret = TRUE;
550 }
551 if (wnd->child)
552 {
553 ret |= WIN_ResetQueueWindows( wnd, hQueue, hNew );
554 }
555 }
556 }
557 else /* Queue is being destroyed */
558 {
559 while (wnd->child)
560 {
561 WND *tmp = WIN_LockWndPtr(wnd->child);
562 WND *tmp2;
563 ret = FALSE;
564 while (tmp)
565 {
566 if (tmp->hmemTaskQ == hQueue)
567 {
568 DestroyWindow( tmp->hwndSelf );
569 ret = TRUE;
570 break;
571 }
572 tmp2 = WIN_LockWndPtr(tmp->child);
573 if (tmp2 && WIN_ResetQueueWindows(tmp2,hQueue,0))
574 ret = TRUE;
575 else
576 {
577 WIN_UpdateWndPtr(&tmp,tmp->next);
578 }
579 WIN_ReleaseWndPtr(tmp2);
580 }
581 WIN_ReleaseWndPtr(tmp);
582 if (!ret) break;
583 }
584 }
585 return ret;
586 }
587
588 /***********************************************************************
589 * WIN_CreateDesktopWindow
590 *
591 * Create the desktop window.
592 */
593 BOOL WIN_CreateDesktopWindow(void)
594 {
595 CLASS *class;
596 HWND hwndDesktop;
597
598 TRACE("Creating desktop window\n");
599
600
601 if (!ICONTITLE_Init() ||
602 !WINPOS_CreateInternalPosAtom() ||
603 !(class = CLASS_FindClassByAtom( DESKTOP_CLASS_ATOM, 0 )))
604 return FALSE;
605
606 hwndDesktop = USER_HEAP_ALLOC( sizeof(WND)+class->cbWndExtra );
607 if (!hwndDesktop) return FALSE;
608 pWndDesktop = (WND *) USER_HEAP_LIN_ADDR( hwndDesktop );
609
610 pWndDesktop->pDriver = WND_Driver;
611 pWndDesktop->pDriver->pInitialize(pWndDesktop);
612
613 pWndDesktop->next = NULL;
614 pWndDesktop->child = NULL;
615 pWndDesktop->parent = NULL;
616 pWndDesktop->owner = NULL;
617 pWndDesktop->class = class;
618 pWndDesktop->dwMagic = WND_MAGIC;
619 pWndDesktop->hwndSelf = hwndDesktop;
620 pWndDesktop->hInstance = 0;
621 pWndDesktop->rectWindow.left = 0;
622 pWndDesktop->rectWindow.top = 0;
623 pWndDesktop->rectWindow.right = GetSystemMetrics(SM_CXSCREEN);
624 pWndDesktop->rectWindow.bottom = GetSystemMetrics(SM_CYSCREEN);
625 pWndDesktop->rectClient = pWndDesktop->rectWindow;
626 pWndDesktop->text = NULL;
627 pWndDesktop->hmemTaskQ = GetFastQueue16();
628 pWndDesktop->hrgnUpdate = 0;
629 pWndDesktop->hwndLastActive = hwndDesktop;
630 pWndDesktop->dwStyle = WS_VISIBLE | WS_CLIPCHILDREN |
631 WS_CLIPSIBLINGS;
632 pWndDesktop->dwExStyle = 0;
633 pWndDesktop->dce = NULL;
634 pWndDesktop->pVScroll = NULL;
635 pWndDesktop->pHScroll = NULL;
636 pWndDesktop->pProp = NULL;
637 pWndDesktop->wIDmenu = 0;
638 pWndDesktop->helpContext = 0;
639 pWndDesktop->flags = Options.desktopGeometry ? WIN_NATIVE : 0;
640 pWndDesktop->hSysMenu = 0;
641 pWndDesktop->userdata = 0;
642 pWndDesktop->winproc = (WNDPROC16)class->winproc;
643 pWndDesktop->irefCount = 0;
644
645 /* FIXME: How do we know if it should be Unicode or not */
646 if(!pWndDesktop->pDriver->pCreateDesktopWindow(pWndDesktop, class, FALSE))
647 return FALSE;
648
649 SendMessageA( hwndDesktop, WM_NCCREATE, 0, 0 );
650 pWndDesktop->flags |= WIN_NEEDS_ERASEBKGND;
651 return TRUE;
652 }
653
654
655 /***********************************************************************
656 * WIN_CreateWindowEx
657 *
658 * Fix the coordinates - Helper for WIN_CreateWindowEx.
659 * returns default show mode in sw.
660 * Note: the feature presented as undocumented *is* in the MSDN since 1993.
661 */
662 static void WIN_FixCoordinates( CREATESTRUCTA *cs, INT *sw)
663 {
664 if (cs->x == CW_USEDEFAULT || cs->x == CW_USEDEFAULT16 ||
665 cs->cx == CW_USEDEFAULT || cs->cx == CW_USEDEFAULT16)
666 {
667 if (cs->style & (WS_CHILD | WS_POPUP))
668 {
669 if (cs->x == CW_USEDEFAULT || cs->x == CW_USEDEFAULT16) cs->x = cs->y = 0;
670 if (cs->cx == CW_USEDEFAULT || cs->cx == CW_USEDEFAULT16) cs->cx = cs->cy = 0;
671 }
672 else /* overlapped window */
673 {
674 STARTUPINFOA info;
675
676 GetStartupInfoA( &info );
677
678 if (cs->x == CW_USEDEFAULT || cs->x == CW_USEDEFAULT16)
679 {
680 /* Never believe Microsoft's documentation... CreateWindowEx doc says
681 * that if an overlapped window is created with WS_VISIBLE style bit
682 * set and the x parameter is set to CW_USEDEFAULT, the system ignores
683 * the y parameter. However, disassembling NT implementation (WIN32K.SYS)
684 * reveals that
685 *
686 * 1) not only it checks for CW_USEDEFAULT but also for CW_USEDEFAULT16
687 * 2) it does not ignore the y parameter as the docs claim; instead, it
688 * uses it as second parameter to ShowWindow() unless y is either
689 * CW_USEDEFAULT or CW_USEDEFAULT16.
690 *
691 * The fact that we didn't do 2) caused bogus windows pop up when wine
692 * was running apps that were using this obscure feature. Example -
693 * calc.exe that comes with Win98 (only Win98, it's different from
694 * the one that comes with Win95 and NT)
695 */
696 if (cs->y != CW_USEDEFAULT && cs->y != CW_USEDEFAULT16) *sw = cs->y;
697 cs->x = (info.dwFlags & STARTF_USEPOSITION) ? info.dwX : 0;
698 cs->y = (info.dwFlags & STARTF_USEPOSITION) ? info.dwY : 0;
699 }
700
701 if (cs->cx == CW_USEDEFAULT || cs->cx == CW_USEDEFAULT16)
702 {
703 if (info.dwFlags & STARTF_USESIZE)
704 {
705 cs->cx = info.dwXSize;
706 cs->cy = info.dwYSize;
707 }
708 else /* if no other hint from the app, pick 3/4 of the screen real estate */
709 {
710 RECT r;
711 SystemParametersInfoA( SPI_GETWORKAREA, 0, &r, 0);
712 cs->cx = (((r.right - r.left) * 3) / 4) - cs->x;
713 cs->cy = (((r.bottom - r.top) * 3) / 4) - cs->y;
714 }
715 }
716 }
717 }
718 }
719
720 /***********************************************************************
721 * WIN_CreateWindowEx
722 *
723 * Implementation of CreateWindowEx().
724 */
725 static HWND WIN_CreateWindowEx( CREATESTRUCTA *cs, ATOM classAtom,
726 BOOL win32, BOOL unicode )
727 {
728 INT sw = SW_SHOW;
729 CLASS *classPtr;
730 WND *wndPtr;
731 HWND retvalue;
732 HWND16 hwnd, hwndLinkAfter;
733 POINT maxSize, maxPos, minTrack, maxTrack;
734 LRESULT (CALLBACK *localSend32)(HWND, UINT, WPARAM, LPARAM);
735
736 TRACE("%s %s %08lx %08lx %d,%d %dx%d %04x %04x %08x %p\n",
737 unicode ? debugres_w((LPWSTR)cs->lpszName) : debugres_a(cs->lpszName),
738 unicode ? debugres_w((LPWSTR)cs->lpszClass) : debugres_a(cs->lpszClass),
739 cs->dwExStyle, cs->style, cs->x, cs->y, cs->cx, cs->cy,
740 cs->hwndParent, cs->hMenu, cs->hInstance, cs->lpCreateParams );
741
742 /* Find the parent window */
743
744 if (cs->hwndParent)
745 {
746 /* Make sure parent is valid */
747 if (!IsWindow( cs->hwndParent ))
748 {
749 WARN("Bad parent %04x\n", cs->hwndParent );
750 return 0;
751 }
752 } else if ((cs->style & WS_CHILD) && !(cs->style & WS_POPUP)) {
753 WARN("No parent for child window\n" );
754 return 0; /* WS_CHILD needs a parent, but WS_POPUP doesn't */
755 }
756
757 /* Find the window class */
758 if (!(classPtr = CLASS_FindClassByAtom( classAtom, win32?cs->hInstance:GetExePtr(cs->hInstance) )))
759 {
760 WARN("Bad class '%s'\n", cs->lpszClass );
761 return 0;
762 }
763
764 WIN_FixCoordinates(cs, &sw); /* fix default coordinates */
765
766 /* Create the window structure */
767
768 if (!(hwnd = USER_HEAP_ALLOC( sizeof(*wndPtr) + classPtr->cbWndExtra
769 - sizeof(wndPtr->wExtra) )))
770 {
771 TRACE("out of memory\n" );
772 return 0;
773 }
774
775 /* Fill the window structure */
776
777 wndPtr = WIN_LockWndPtr((WND *) USER_HEAP_LIN_ADDR( hwnd ));
778 wndPtr->next = NULL;
779 wndPtr->child = NULL;
780
781 if ((cs->style & WS_CHILD) && cs->hwndParent)
782 {
783 wndPtr->parent = WIN_FindWndPtr( cs->hwndParent );
784 wndPtr->owner = NULL;
785 WIN_ReleaseWndPtr(wndPtr->parent);
786 }
787 else
788 {
789 wndPtr->parent = pWndDesktop;
790 if (!cs->hwndParent || (cs->hwndParent == pWndDesktop->hwndSelf))
791 wndPtr->owner = NULL;
792 else
793 {
794 WND *tmpWnd = WIN_FindWndPtr(cs->hwndParent);
795 wndPtr->owner = WIN_GetTopParentPtr(tmpWnd);
796 WIN_ReleaseWndPtr(wndPtr->owner);
797 WIN_ReleaseWndPtr(tmpWnd);
798 }
799 }
800
801
802 wndPtr->pDriver = wndPtr->parent->pDriver;
803 wndPtr->pDriver->pInitialize(wndPtr);
804
805 wndPtr->class = classPtr;
806 wndPtr->winproc = classPtr->winproc;
807 wndPtr->dwMagic = WND_MAGIC;
808 wndPtr->hwndSelf = hwnd;
809 wndPtr->hInstance = cs->hInstance;
810 wndPtr->text = NULL;
811 wndPtr->hmemTaskQ = GetFastQueue16();
812 wndPtr->hrgnUpdate = 0;
813 wndPtr->hrgnWnd = 0;
814 wndPtr->hwndLastActive = hwnd;
815 wndPtr->dwStyle = cs->style & ~WS_VISIBLE;
816 wndPtr->dwExStyle = cs->dwExStyle;
817 wndPtr->wIDmenu = 0;
818 wndPtr->helpContext = 0;
819 wndPtr->flags = win32 ? WIN_ISWIN32 : 0;
820 wndPtr->pVScroll = NULL;
821 wndPtr->pHScroll = NULL;
822 wndPtr->pProp = NULL;
823 wndPtr->userdata = 0;
824 wndPtr->hSysMenu = (wndPtr->dwStyle & WS_SYSMENU)
825 ? MENU_GetSysMenu( hwnd, 0 ) : 0;
826 wndPtr->irefCount = 1;
827
828 if (classPtr->cbWndExtra) memset( wndPtr->wExtra, 0, classPtr->cbWndExtra);
829
830 /* Call the WH_CBT hook */
831
832 hwndLinkAfter = ((cs->style & (WS_CHILD|WS_MAXIMIZE)) == WS_CHILD)
833 ? HWND_BOTTOM : HWND_TOP;
834
835 if (HOOK_IsHooked( WH_CBT ))
836 {
837 CBT_CREATEWNDA cbtc;
838 LRESULT ret;
839
840 cbtc.lpcs = cs;
841 cbtc.hwndInsertAfter = hwndLinkAfter;
842 ret = unicode ? HOOK_CallHooksW(WH_CBT, HCBT_CREATEWND, hwnd, (LPARAM)&cbtc)
843 : HOOK_CallHooksA(WH_CBT, HCBT_CREATEWND, hwnd, (LPARAM)&cbtc);
844 if (ret)
845 {
846 TRACE("CBT-hook returned 0\n");
847 wndPtr->pDriver->pFinalize(wndPtr);
848 USER_HEAP_FREE( hwnd );
849 retvalue = 0;
850 goto end;
851 }
852 }
853
854 /* Increment class window counter */
855
856 classPtr->cWindows++;
857
858 /* Correct the window style */
859
860 if (!(cs->style & WS_CHILD))
861 {
862 wndPtr->dwStyle |= WS_CLIPSIBLINGS;
863 if (!(cs->style & WS_POPUP))
864 {
865 wndPtr->dwStyle |= WS_CAPTION;
866 wndPtr->flags |= WIN_NEED_SIZE;
867 }
868 }
869
870 /* Get class or window DC if needed */
871
872 if (classPtr->style & CS_OWNDC) wndPtr->dce = DCE_AllocDCE(hwnd,DCE_WINDOW_DC);
873 else if (classPtr->style & CS_CLASSDC) wndPtr->dce = classPtr->dce;
874 else wndPtr->dce = NULL;
875
876 /* Initialize the dimensions before sending WM_GETMINMAXINFO */
877
878 wndPtr->rectWindow.left = cs->x;
879 wndPtr->rectWindow.top = cs->y;
880 wndPtr->rectWindow.right = cs->x + cs->cx;
881 wndPtr->rectWindow.bottom = cs->y + cs->cy;
882 wndPtr->rectClient = wndPtr->rectWindow;
883
884 /* Send the WM_GETMINMAXINFO message and fix the size if needed */
885
886 if ((cs->style & WS_THICKFRAME) || !(cs->style & (WS_POPUP | WS_CHILD)))
887 {
888 WINPOS_GetMinMaxInfo( wndPtr, &maxSize, &maxPos, &minTrack, &maxTrack);
889 if (maxSize.x < cs->cx) cs->cx = maxSize.x;
890 if (maxSize.y < cs->cy) cs->cy = maxSize.y;
891 if (cs->cx < minTrack.x ) cs->cx = minTrack.x;
892 if (cs->cy < minTrack.y ) cs->cy = minTrack.y;
893 }
894
895 if (cs->cx < 0) cs->cx = 0;
896 if (cs->cy < 0) cs->cy = 0;
897
898 wndPtr->rectWindow.left = cs->x;
899 wndPtr->rectWindow.top = cs->y;
900 wndPtr->rectWindow.right = cs->x + cs->cx;
901 wndPtr->rectWindow.bottom = cs->y + cs->cy;
902 wndPtr->rectClient = wndPtr->rectWindow;
903
904 if(!wndPtr->pDriver->pCreateWindow(wndPtr, classPtr, cs, unicode))
905 {
906 retvalue = FALSE;
907 goto end;
908 }
909
910 /* Set the window menu */
911
912 if ((wndPtr->dwStyle & (WS_CAPTION | WS_CHILD)) == WS_CAPTION )
913 {
914 if (cs->hMenu) SetMenu(hwnd, cs->hMenu);
915 else
916 {
917 #if 0 /* FIXME: should check if classPtr->menuNameW can be used as is */
918 if (classPtr->menuNameA)
919 cs->hMenu = HIWORD(classPtr->menuNameA) ?
920 LoadMenu(cs->hInstance,SEGPTR_GET(classPtr->menuNameA)):
921 LoadMenu(cs->hInstance,(SEGPTR)classPtr->menuNameA);
922 #else
923 SEGPTR menuName = (SEGPTR)GetClassLong16( hwnd, GCL_MENUNAME );
924 if (menuName)
925 {
926 if (HIWORD(cs->hInstance))
927 cs->hMenu = LoadMenuA(cs->hInstance,PTR_SEG_TO_LIN(menuName));
928 else
929 cs->hMenu = LoadMenu16(cs->hInstance,menuName);
930
931 if (cs->hMenu) SetMenu( hwnd, cs->hMenu );
932 }
933 #endif
934 }
935 }
936 else wndPtr->wIDmenu = (UINT)cs->hMenu;
937
938 /* Send the WM_CREATE message
939 * Perhaps we shouldn't allow width/height changes as well.
940 * See p327 in "Internals".
941 */
942
943 maxPos.x = wndPtr->rectWindow.left; maxPos.y = wndPtr->rectWindow.top;
944
945 localSend32 = unicode ? SendMessageW : SendMessageA;
946 if( (*localSend32)( hwnd, WM_NCCREATE, 0, (LPARAM)cs) )
947 {
948 /* Insert the window in the linked list */
949
950 WIN_LinkWindow( hwnd, hwndLinkAfter );
951
952 WINPOS_SendNCCalcSize( hwnd, FALSE, &wndPtr->rectWindow,
953 NULL, NULL, 0, &wndPtr->rectClient );
954 OffsetRect(&wndPtr->rectWindow, maxPos.x - wndPtr->rectWindow.left,
955 maxPos.y - wndPtr->rectWindow.top);
956 if( ((*localSend32)( hwnd, WM_CREATE, 0, (LPARAM)cs )) != -1 )
957 {
958 /* Send the size messages */
959
960 if (!(wndPtr->flags & WIN_NEED_SIZE))
961 {
962 /* send it anyway */
963 if (((wndPtr->rectClient.right-wndPtr->rectClient.left) <0)
964 ||((wndPtr->rectClient.bottom-wndPtr->rectClient.top)<0))
965 WARN("sending bogus WM_SIZE message 0x%08lx\n",
966 MAKELONG(wndPtr->rectClient.right-wndPtr->rectClient.left,
967 wndPtr->rectClient.bottom-wndPtr->rectClient.top));
968 SendMessageA( hwnd, WM_SIZE, SIZE_RESTORED,
969 MAKELONG(wndPtr->rectClient.right-wndPtr->rectClient.left,
970 wndPtr->rectClient.bottom-wndPtr->rectClient.top));
971 SendMessageA( hwnd, WM_MOVE, 0,
972 MAKELONG( wndPtr->rectClient.left,
973 wndPtr->rectClient.top ) );
974 }
975
976 /* Show the window, maximizing or minimizing if needed */
977
978 if (wndPtr->dwStyle & (WS_MINIMIZE | WS_MAXIMIZE))
979 {
980 RECT16 newPos;
981 UINT16 swFlag = (wndPtr->dwStyle & WS_MINIMIZE) ? SW_MINIMIZE : SW_MAXIMIZE;
982 wndPtr->dwStyle &= ~(WS_MAXIMIZE | WS_MINIMIZE);
983 WINPOS_MinMaximize( wndPtr, swFlag, &newPos );
984 swFlag = ((wndPtr->dwStyle & WS_CHILD) || GetActiveWindow())
985 ? SWP_NOACTIVATE | SWP_NOZORDER | SWP_FRAMECHANGED
986 : SWP_NOZORDER | SWP_FRAMECHANGED;
987 SetWindowPos( hwnd, 0, newPos.left, newPos.top,
988 newPos.right, newPos.bottom, swFlag );
989 }
990
991 if( (wndPtr->dwStyle & WS_CHILD) && !(wndPtr->dwExStyle & WS_EX_NOPARENTNOTIFY) )
992 {
993 /* Notify the parent window only */
994
995 SendMessageA( wndPtr->parent->hwndSelf, WM_PARENTNOTIFY,
996 MAKEWPARAM(WM_CREATE, wndPtr->wIDmenu), (LPARAM)hwnd );
997 if( !IsWindow(hwnd) )
998 {
999 retvalue = 0;
1000 goto end;
1001 }
1002 }
1003
1004 if (cs->style & WS_VISIBLE) ShowWindow( hwnd, sw );
1005
1006 /* Call WH_SHELL hook */
1007
1008 if (!(wndPtr->dwStyle & WS_CHILD) && !wndPtr->owner)
1009 HOOK_CallHooks16( WH_SHELL, HSHELL_WINDOWCREATED, hwnd, 0 );
1010
1011 TRACE("created window %04x\n", hwnd);
1012 retvalue = hwnd;
1013 goto end;
1014 }
1015 WIN_UnlinkWindow( hwnd );
1016 }
1017
1018 /* Abort window creation */
1019
1020 WARN("aborted by WM_xxCREATE!\n");
1021 WIN_ReleaseWndPtr(WIN_DestroyWindow( wndPtr ));
1022 retvalue = 0;
1023 end:
1024 WIN_ReleaseWndPtr(wndPtr);
1025
1026 return retvalue;
1027 }
1028
1029
1030 /***********************************************************************
1031 * CreateWindow16 (USER.41)
1032 */
1033 HWND16 WINAPI CreateWindow16( LPCSTR className, LPCSTR windowName,
1034 DWORD style, INT16 x, INT16 y, INT16 width,
1035 INT16 height, HWND16 parent, HMENU16 menu,
1036 HINSTANCE16 instance, LPVOID data )
1037 {
1038 return CreateWindowEx16( 0, className, windowName, style,
1039 x, y, width, height, parent, menu, instance, data );
1040 }
1041
1042
1043 /***********************************************************************
1044 * CreateWindowEx16 (USER.452)
1045 */
1046 HWND16 WINAPI CreateWindowEx16( DWORD exStyle, LPCSTR className,
1047 LPCSTR windowName, DWORD style, INT16 x,
1048 INT16 y, INT16 width, INT16 height,
1049 HWND16 parent, HMENU16 menu,
1050 HINSTANCE16 instance, LPVOID data )
1051 {
1052 ATOM classAtom;
1053 CREATESTRUCTA cs;
1054 char buffer[256];
1055
1056 /* Find the class atom */
1057
1058 if (HIWORD(className))
1059 {
1060 if (!(classAtom = GlobalFindAtomA( className )))
1061 {
1062 ERR( "bad class name %s\n", debugres_a(className) );
1063 return 0;
1064 }
1065 }
1066 else
1067 {
1068 classAtom = LOWORD(className);
1069 if (!GlobalGetAtomNameA( classAtom, buffer, sizeof(buffer) ))
1070 {
1071 ERR( "bad atom %x\n", classAtom);
1072 return 0;
1073 }
1074 className = buffer;
1075 }
1076
1077 /* Fix the coordinates */
1078
1079 cs.x = (x == CW_USEDEFAULT16) ? CW_USEDEFAULT : (INT)x;
1080 cs.y = (y == CW_USEDEFAULT16) ? CW_USEDEFAULT : (INT)y;
1081 cs.cx = (width == CW_USEDEFAULT16) ? CW_USEDEFAULT : (INT)width;
1082 cs.cy = (height == CW_USEDEFAULT16) ? CW_USEDEFAULT : (INT)height;
1083
1084 /* Create the window */
1085
1086 cs.lpCreateParams = data;
1087 cs.hInstance = (HINSTANCE)instance;
1088 cs.hMenu = (HMENU)menu;
1089 cs.hwndParent = (HWND)parent;
1090 cs.style = style;
1091 cs.lpszName = windowName;
1092 cs.lpszClass = className;
1093 cs.dwExStyle = exStyle;
1094
1095 return WIN_CreateWindowEx( &cs, classAtom, FALSE, FALSE );
1096 }
1097
1098
1099 /***********************************************************************
1100 * CreateWindowExA (USER32.83)
1101 */
1102 HWND WINAPI CreateWindowExA( DWORD exStyle, LPCSTR className,
1103 LPCSTR windowName, DWORD style, INT x,
1104 INT y, INT width, INT height,
1105 HWND parent, HMENU menu,
1106 HINSTANCE instance, LPVOID data )
1107 {
1108 ATOM classAtom;
1109 CREATESTRUCTA cs;
1110 char buffer[256];
1111
1112 if(!instance)
1113 instance=GetModuleHandleA(NULL);
1114
1115 if(exStyle & WS_EX_MDICHILD)
1116 return MDI_CreateMDIWindowA(className, windowName, style, x, y, width, height, parent, instance, (LPARAM)data);
1117
1118 /* Find the class atom */
1119
1120 if (HIWORD(className))
1121 {
1122 if (!(classAtom = GlobalFindAtomA( className )))
1123 {
1124 ERR( "bad class name %s\n", debugres_a(className) );
1125 return 0;
1126 }
1127 }
1128 else
1129 {
1130 classAtom = LOWORD(className);
1131 if (!GlobalGetAtomNameA( classAtom, buffer, sizeof(buffer) ))
1132 {
1133 ERR( "bad atom %x\n", classAtom);
1134 return 0;
1135 }
1136 className = buffer;
1137 }
1138
1139 /* Create the window */
1140
1141 cs.lpCreateParams = data;
1142 cs.hInstance = instance;
1143 cs.hMenu = menu;
1144 cs.hwndParent = parent;
1145 cs.x = x;
1146 cs.y = y;
1147 cs.cx = width;
1148 cs.cy = height;
1149 cs.style = style;
1150 cs.lpszName = windowName;
1151 cs.lpszClass = className;
1152 cs.dwExStyle = exStyle;
1153
1154 return WIN_CreateWindowEx( &cs, classAtom, TRUE, FALSE );
1155 }
1156
1157
1158 /***********************************************************************
1159 * CreateWindowExW (USER32.84)
1160 */
1161 HWND WINAPI CreateWindowExW( DWORD exStyle, LPCWSTR className,
1162 LPCWSTR windowName, DWORD style, INT x,
1163 INT y, INT width, INT height,
1164 HWND parent, HMENU menu,
1165 HINSTANCE instance, LPVOID data )
1166 {
1167 ATOM classAtom;
1168 CREATESTRUCTW cs;
1169 WCHAR buffer[256];
1170
1171 if(!instance)
1172 instance=GetModuleHandleA(NULL);
1173
1174 if(exStyle & WS_EX_MDICHILD)
1175 return MDI_CreateMDIWindowW(className, windowName, style, x, y, width, height, parent, instance, (LPARAM)data);
1176
1177 /* Find the class atom */
1178
1179 if (HIWORD(className))
1180 {
1181 if (!(classAtom = GlobalFindAtomW( className )))
1182 {
1183 ERR( "bad class name %s\n", debugres_w(className) );
1184 return 0;
1185 }
1186 }
1187 else
1188 {
1189 classAtom = LOWORD(className);
1190 if (!GlobalGetAtomNameW( classAtom, buffer, sizeof(buffer)/sizeof(WCHAR) ))
1191 {
1192 ERR( "bad atom %x\n", classAtom);
1193 return 0;
1194 }
1195 className = buffer;
1196 }
1197
1198 /* Create the window */
1199
1200 cs.lpCreateParams = data;
1201 cs.hInstance = instance;
1202 cs.hMenu = menu;
1203 cs.hwndParent = parent;
1204 cs.x = x;
1205 cs.y = y;
1206 cs.cx = width;
1207 cs.cy = height;
1208 cs.style = style;
1209 cs.lpszName = windowName;
1210 cs.lpszClass = className;
1211 cs.dwExStyle = exStyle;
1212
1213 /* Note: we rely on the fact that CREATESTRUCTA and */
1214 /* CREATESTRUCTW have the same layout. */
1215 return WIN_CreateWindowEx( (CREATESTRUCTA *)&cs, classAtom, TRUE, TRUE );
1216 }
1217
1218
1219 /***********************************************************************
1220 * WIN_CheckFocus
1221 */
1222 static void WIN_CheckFocus( WND* pWnd )
1223 {
1224 if( GetFocus16() == pWnd->hwndSelf )
1225 SetFocus16( (pWnd->dwStyle & WS_CHILD) ? pWnd->parent->hwndSelf : 0 );
1226 }
1227
1228 /***********************************************************************
1229 * WIN_SendDestroyMsg
1230 */
1231 static void WIN_SendDestroyMsg( WND* pWnd )
1232 {
1233 WIN_CheckFocus(pWnd);
1234
1235 if( CARET_GetHwnd() == pWnd->hwndSelf ) DestroyCaret();
1236 USER_Driver.pResetSelectionOwner( pWnd, TRUE );
1237
1238 /*
1239 * Send the WM_DESTROY to the window.
1240 */
1241 SendMessageA( pWnd->hwndSelf, WM_DESTROY, 0, 0);
1242
1243 /*
1244 * This WM_DESTROY message can trigger re-entrant calls to DestroyWindow
1245 * make sure that the window still exists when we come back.
1246 */
1247 if (IsWindow(pWnd->hwndSelf))
1248 {
1249 HWND* pWndArray = NULL;
1250 WND* pChild = NULL;
1251 int nKidCount = 0;
1252
1253 /*
1254 * Now, if the window has kids, we have to send WM_DESTROY messages
1255 * recursively to it's kids. It seems that those calls can also
1256 * trigger re-entrant calls to DestroyWindow for the kids so we must
1257 * protect against corruption of the list of siblings. We first build
1258 * a list of HWNDs representing all the kids.
1259 */
1260 pChild = WIN_LockWndPtr(pWnd->child);
1261 while( pChild )
1262 {
1263 nKidCount++;
1264 WIN_UpdateWndPtr(&pChild,pChild->next);
1265 }
1266
1267 /*
1268 * If there are no kids, we're done.
1269 */
1270 if (nKidCount==0)
1271 return;
1272
1273 pWndArray = HeapAlloc(GetProcessHeap(), 0, nKidCount*sizeof(HWND));
1274
1275 /*
1276 * Sanity check
1277 */
1278 if (pWndArray==NULL)
1279 return;
1280
1281 /*
1282 * Now, enumerate all the kids in a list, since we wait to make the SendMessage
1283 * call, our linked list of siblings should be safe.
1284 */
1285 nKidCount = 0;
1286 pChild = WIN_LockWndPtr(pWnd->child);
1287 while( pChild )
1288 {
1289 pWndArray[nKidCount] = pChild->hwndSelf;
1290 nKidCount++;
1291 WIN_UpdateWndPtr(&pChild,pChild->next);
1292 }
1293
1294 /*
1295 * Now that we have a list, go through that list again and send the destroy
1296 * message to those windows. We are using the HWND to retrieve the
1297 * WND pointer so we are effectively checking that all the kid windows are
1298 * still valid before sending the message.
1299 */
1300 while (nKidCount>0)
1301 {
1302 pChild = WIN_FindWndPtr(pWndArray[--nKidCount]);
1303
1304 if (pChild!=NULL)
1305 {
1306 WIN_SendDestroyMsg( pChild );
1307 WIN_ReleaseWndPtr(pChild);
1308 }
1309 }
1310
1311 /*
1312 * Cleanup
1313 */
1314 HeapFree(GetProcessHeap(), 0, pWndArray);
1315 WIN_CheckFocus(pWnd);
1316 }
1317 else
1318 WARN("\tdestroyed itself while in WM_DESTROY!\n");
1319 }
1320
1321
1322 /***********************************************************************
1323 * DestroyWindow16 (USER.53)
1324 */
1325 BOOL16 WINAPI DestroyWindow16( HWND16 hwnd )
1326 {
1327 return DestroyWindow(hwnd);
1328 }
1329
1330
1331 /***********************************************************************
1332 * DestroyWindow (USER32.135)
1333 */
1334 BOOL WINAPI DestroyWindow( HWND hwnd )
1335 {
1336 WND * wndPtr;
1337 BOOL retvalue;
1338
1339 TRACE("(%04x)\n", hwnd);
1340
1341 /* Initialization */
1342
1343 if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
1344 if (wndPtr == pWndDesktop)
1345 {
1346 retvalue = FALSE; /* Can't destroy desktop */
1347 goto end;
1348 }
1349
1350 /* Call hooks */
1351
1352 if( HOOK_CallHooks16( WH_CBT, HCBT_DESTROYWND, hwnd, 0L) )
1353 {
1354 retvalue = FALSE;
1355 goto end;
1356 }
1357
1358 if (!(wndPtr->dwStyle & WS_CHILD) && !wndPtr->owner)
1359 {
1360 HOOK_CallHooks16( WH_SHELL, HSHELL_WINDOWDESTROYED, hwnd, 0L );
1361 /* FIXME: clean up palette - see "Internals" p.352 */
1362 }
1363
1364 if( !QUEUE_IsExitingQueue(wndPtr->hmemTaskQ) )
1365 if( wndPtr->dwStyle & WS_CHILD && !(wndPtr->dwExStyle & WS_EX_NOPARENTNOTIFY) )
1366 {
1367 /* Notify the parent window only */
1368 SendMessageA( wndPtr->parent->hwndSelf, WM_PARENTNOTIFY,
1369 MAKEWPARAM(WM_DESTROY, wndPtr->wIDmenu), (LPARAM)hwnd );
1370 if( !IsWindow(hwnd) )
1371 {
1372 retvalue = TRUE;
1373 goto end;
1374 }
1375 }
1376
1377 USER_Driver.pResetSelectionOwner( wndPtr, FALSE ); /* before the window is unmapped */
1378
1379 /* Hide the window */
1380
1381 if (wndPtr->dwStyle & WS_VISIBLE)
1382 {
1383 SetWindowPos( hwnd, 0, 0, 0, 0, 0, SWP_HIDEWINDOW |
1384 SWP_NOACTIVATE|SWP_NOZORDER|SWP_NOMOVE|SWP_NOSIZE|
1385 ((QUEUE_IsExitingQueue(wndPtr->hmemTaskQ))?SWP_DEFERERASE:0) );
1386 if (!IsWindow(hwnd))
1387 {
1388 retvalue = TRUE;
1389 goto end;
1390 }
1391 }
1392
1393 /* Recursively destroy owned windows */
1394
1395 if( !(wndPtr->dwStyle & WS_CHILD) )
1396 {
1397 /* make sure top menu popup doesn't get destroyed */
1398 MENU_PatchResidentPopup( (HQUEUE16)0xFFFF, wndPtr );
1399
1400 for (;;)
1401 {
1402 WND *siblingPtr = WIN_LockWndPtr(wndPtr->parent->child); /* First sibling */
1403 while (siblingPtr)
1404 {
1405 if (siblingPtr->owner == wndPtr)
1406 {
1407 if (siblingPtr->hmemTaskQ == wndPtr->hmemTaskQ)
1408 break;
1409 else
1410 siblingPtr->owner = NULL;
1411 }
1412 WIN_UpdateWndPtr(&siblingPtr,siblingPtr->next);
1413 }
1414 if (siblingPtr)
1415 {
1416 DestroyWindow( siblingPtr->hwndSelf );
1417 WIN_ReleaseWndPtr(siblingPtr);
1418 }
1419 else break;
1420 }
1421
1422 if( !Options.managed || EVENT_CheckFocus() )
1423 WINPOS_ActivateOtherWindow(wndPtr);
1424
1425 if( wndPtr->owner &&
1426 wndPtr->owner->hwndLastActive == wndPtr->hwndSelf )
1427 wndPtr->owner->hwndLastActive = wndPtr->owner->hwndSelf;
1428 }
1429
1430 /* Send destroy messages */
1431
1432 WIN_SendDestroyMsg( wndPtr );
1433 if (!IsWindow(hwnd))
1434 {
1435 retvalue = TRUE;
1436 goto end;
1437 }
1438
1439 /* Unlink now so we won't bother with the children later on */
1440
1441 if( wndPtr->parent ) WIN_UnlinkWindow(hwnd);
1442
1443 /* Destroy the window storage */
1444
1445 WIN_ReleaseWndPtr(WIN_DestroyWindow( wndPtr ));
1446 retvalue = TRUE;
1447 end:
1448 WIN_ReleaseWndPtr(wndPtr);
1449 return retvalue;
1450 }
1451
1452
1453 /***********************************************************************
1454 * CloseWindow16 (USER.43)
1455 */
1456 BOOL16 WINAPI CloseWindow16( HWND16 hwnd )
1457 {
1458 return CloseWindow( hwnd );
1459 }
1460
1461
1462 /***********************************************************************
1463 * CloseWindow (USER32.56)
1464 */
1465 BOOL WINAPI CloseWindow( HWND hwnd )
1466 {
1467 WND * wndPtr = WIN_FindWndPtr( hwnd );
1468 BOOL retvalue;
1469
1470 if (!wndPtr || (wndPtr->dwStyle & WS_CHILD))
1471 {
1472 retvalue = FALSE;
1473 goto end;
1474 }
1475 ShowWindow( hwnd, SW_MINIMIZE );
1476 retvalue = TRUE;
1477 end:
1478 WIN_ReleaseWndPtr(wndPtr);
1479 return retvalue;
1480
1481 }
1482
1483
1484 /***********************************************************************
1485 * OpenIcon16 (USER.44)
1486 */
1487 BOOL16 WINAPI OpenIcon16( HWND16 hwnd )
1488 {
1489 return OpenIcon( hwnd );
1490 }
1491
1492
1493 /***********************************************************************
1494 * OpenIcon (USER32.410)
1495 */
1496 BOOL WINAPI OpenIcon( HWND hwnd )
1497 {
1498 if (!IsIconic( hwnd )) return FALSE;
1499 ShowWindow( hwnd, SW_SHOWNORMAL );
1500 return TRUE;
1501 }
1502
1503
1504 /***********************************************************************
1505 * WIN_FindWindow
1506 *
1507 * Implementation of FindWindow() and FindWindowEx().
1508 */
1509 static HWND WIN_FindWindow( HWND parent, HWND child, ATOM className,
1510 LPCWSTR title )
1511 {
1512 WND *pWnd;
1513 HWND retvalue;
1514
1515 if (child)
1516 {
1517 if (!(pWnd = WIN_FindWndPtr( child ))) return 0;
1518 if (parent)
1519 {
1520 if (!pWnd->parent || (pWnd->parent->hwndSelf != parent))
1521 {
1522 retvalue = 0;
1523 goto end;
1524 }
1525 }
1526 else if (pWnd->parent != pWndDesktop)
1527 {
1528 retvalue = 0;
1529 goto end;
1530 }
1531 WIN_UpdateWndPtr(&pWnd,pWnd->next);
1532 }
1533 else
1534 {
1535 if (!(pWnd = parent ? WIN_FindWndPtr(parent) : WIN_LockWndPtr(pWndDesktop)))
1536 {
1537 retvalue = 0;
1538 goto end;
1539 }
1540 WIN_UpdateWndPtr(&pWnd,pWnd->child);
1541 }
1542 if (!pWnd)
1543 {
1544 retvalue = 0;
1545 goto end;
1546 }
1547
1548 for ( ; pWnd ; WIN_UpdateWndPtr(&pWnd,pWnd->next))
1549 {
1550 if (className && (pWnd->class->atomName != className))
1551 continue; /* Not the right class */
1552
1553 /* Now check the title */
1554
1555 if (!title)
1556 {
1557 retvalue = pWnd->hwndSelf;
1558 goto end;
1559 }
1560 if (pWnd->text && !strcmpW( pWnd->text, title ))
1561 {
1562 retvalue = pWnd->hwndSelf;
1563 goto end;
1564 }
1565 }
1566 retvalue = 0;
1567 end:
1568 WIN_ReleaseWndPtr(pWnd);
1569 return retvalue;
1570 }
1571
1572
1573
1574 /***********************************************************************
1575 * FindWindow16 (USER.50)
1576 */
1577 HWND16 WINAPI FindWindow16( LPCSTR className, LPCSTR title )
1578 {
1579 return FindWindowA( className, title );
1580 }
1581
1582
1583 /***********************************************************************
1584 * FindWindowEx16 (USER.427)
1585 */
1586 HWND16 WINAPI FindWindowEx16( HWND16 parent, HWND16 child, LPCSTR className, LPCSTR title )
1587 {
1588 return FindWindowExA( parent, child, className, title );
1589 }
1590
1591
1592 /***********************************************************************
1593 * FindWindowA (USER32.198)
1594 */
1595 HWND WINAPI FindWindowA( LPCSTR className, LPCSTR title )
1596 {
1597 HWND ret = FindWindowExA( 0, 0, className, title );
1598 if (!ret) SetLastError (ERROR_CANNOT_FIND_WND_CLASS);
1599 return ret;
1600 }
1601
1602
1603 /***********************************************************************
1604 * FindWindowExA (USER32.199)
1605 */
1606 HWND WINAPI FindWindowExA( HWND parent, HWND child,
1607 LPCSTR className, LPCSTR title )
1608 {
1609 ATOM atom = 0;
1610 LPWSTR buffer;
1611 HWND hwnd;
1612
1613 if (className)
1614 {
1615 /* If the atom doesn't exist, then no class */
1616 /* with this name exists either. */
1617 if (!(atom = GlobalFindAtomA( className )))
1618 {
1619 SetLastError (ERROR_CANNOT_FIND_WND_CLASS);
1620 return 0;
1621 }
1622 }
1623
1624 buffer = HEAP_strdupAtoW( GetProcessHeap(), 0, title );
1625 hwnd = WIN_FindWindow( parent, child, atom, buffer );
1626 HeapFree( GetProcessHeap(), 0, buffer );
1627 return hwnd;
1628 }
1629
1630
1631 /***********************************************************************
1632 * FindWindowExW (USER32.200)
1633 */
1634 HWND WINAPI FindWindowExW( HWND parent, HWND child,
1635 LPCWSTR className, LPCWSTR title )
1636 {
1637 ATOM atom = 0;
1638
1639 if (className)
1640 {
1641 /* If the atom doesn't exist, then no class */
1642 /* with this name exists either. */
1643 if (!(atom = GlobalFindAtomW( className )))
1644 {
1645 SetLastError (ERROR_CANNOT_FIND_WND_CLASS);
1646 return 0;
1647 }
1648 }
1649 return WIN_FindWindow( parent, child, atom, title );
1650 }
1651
1652
1653 /***********************************************************************
1654 * FindWindowW (USER32.201)
1655 */
1656 HWND WINAPI FindWindowW( LPCWSTR className, LPCWSTR title )
1657 {
1658 return FindWindowExW( 0, 0, className, title );
1659 }
1660
1661
1662 /**********************************************************************
1663 * WIN_GetDesktop
1664 * returns a locked pointer
1665 */
1666 WND *WIN_GetDesktop(void)
1667 {
1668 return WIN_LockWndPtr(pWndDesktop);
1669 }
1670 /**********************************************************************
1671 * WIN_ReleaseDesktop
1672 * unlock the desktop pointer
1673 */
1674 void WIN_ReleaseDesktop(void)
1675 {
1676 WIN_ReleaseWndPtr(pWndDesktop);
1677 }
1678
1679
1680 /**********************************************************************
1681 * GetDesktopWindow16 (USER.286)
1682 */
1683 HWND16 WINAPI GetDesktopWindow16(void)
1684 {
1685 return (HWND16)pWndDesktop->hwndSelf;
1686 }
1687
1688
1689 /**********************************************************************
1690 * GetDesktopWindow (USER32.232)
1691 */
1692 HWND WINAPI GetDesktopWindow(void)
1693 {
1694 if (pWndDesktop) return pWndDesktop->hwndSelf;
1695 ERR( "You need the -desktop option when running with native USER\n" );
1696 ExitProcess(1);
1697 return 0;
1698 }
1699
1700
1701 /**********************************************************************
1702 * GetDesktopHwnd (USER.278)
1703 *
1704 * Exactly the same thing as GetDesktopWindow(), but not documented.
1705 * Don't ask me why...
1706 */
1707 HWND16 WINAPI GetDesktopHwnd16(void)
1708 {
1709 return (HWND16)pWndDesktop->hwndSelf;
1710 }
1711
1712
1713 /*******************************************************************
1714 * EnableWindow16 (USER.34)
1715 */
1716 BOOL16 WINAPI EnableWindow16( HWND16 hwnd, BOOL16 enable )
1717 {
1718 return EnableWindow( hwnd, enable );
1719 }
1720
1721
1722 /*******************************************************************
1723 * EnableWindow (USER32.172)
1724 */
1725 BOOL WINAPI EnableWindow( HWND hwnd, BOOL enable )
1726 {
1727 WND *wndPtr;
1728 BOOL retvalue;
1729
1730 TRACE("EnableWindow32: ( %x, %d )\n", hwnd, enable);
1731
1732 if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
1733 if (enable && (wndPtr->dwStyle & WS_DISABLED))
1734 {
1735 /* Enable window */
1736 wndPtr->dwStyle &= ~WS_DISABLED;
1737
1738 if( wndPtr->flags & WIN_NATIVE )
1739 wndPtr->pDriver->pSetHostAttr( wndPtr, HAK_ACCEPTFOCUS, TRUE );
1740
1741 SendMessageA( hwnd, WM_ENABLE, TRUE, 0 );
1742 retvalue = TRUE;
1743 goto end;
1744 }
1745 else if (!enable && !(wndPtr->dwStyle & WS_DISABLED))
1746 {
1747 SendMessageA( wndPtr->hwndSelf, WM_CANCELMODE, 0, 0);
1748
1749 /* Disable window */
1750 wndPtr->dwStyle |= WS_DISABLED;
1751
1752 if( wndPtr->flags & WIN_NATIVE )
1753 wndPtr->pDriver->pSetHostAttr( wndPtr, HAK_ACCEPTFOCUS, FALSE );
1754
1755 if (hwnd == GetFocus())
1756 {
1757 SetFocus( 0 ); /* A disabled window can't have the focus */
1758 }
1759 if (hwnd == GetCapture())
1760 {
1761 ReleaseCapture(); /* A disabled window can't capture the mouse */
1762 }
1763 SendMessageA( hwnd, WM_ENABLE, FALSE, 0 );
1764 retvalue = FALSE;
1765 goto end;
1766 }
1767 retvalue = ((wndPtr->dwStyle & WS_DISABLED) != 0);
1768 end:
1769 WIN_ReleaseWndPtr(wndPtr);
1770 return retvalue;
1771 }
1772
1773
1774 /***********************************************************************
1775 * IsWindowEnabled16 (USER.35)
1776 */
1777 BOOL16 WINAPI IsWindowEnabled16(HWND16 hWnd)
1778 {
1779 return IsWindowEnabled(hWnd);
1780 }
1781
1782
1783 /***********************************************************************
1784 * IsWindowEnabled (USER32.349)
1785 */
1786 BOOL WINAPI IsWindowEnabled(HWND hWnd)
1787 {
1788 WND * wndPtr;
1789 BOOL retvalue;
1790
1791 if (!(wndPtr = WIN_FindWndPtr(hWnd))) return FALSE;
1792 retvalue = !(wndPtr->dwStyle & WS_DISABLED);
1793 WIN_ReleaseWndPtr(wndPtr);
1794 return retvalue;
1795
1796 }
1797
1798
1799 /***********************************************************************
1800 * IsWindowUnicode (USER32.350)
1801 */
1802 BOOL WINAPI IsWindowUnicode( HWND hwnd )
1803 {
1804 WND * wndPtr;
1805 BOOL retvalue;
1806
1807 if (!(wndPtr = WIN_FindWndPtr(hwnd))) return FALSE;
1808 retvalue = (WINPROC_GetProcType( wndPtr->winproc ) == WIN_PROC_32W);
1809 WIN_ReleaseWndPtr(wndPtr);
1810 return retvalue;
1811 }
1812
1813
1814 /**********************************************************************
1815 * GetWindowWord16 (USER.133)
1816 */
1817 WORD WINAPI GetWindowWord16( HWND16 hwnd, INT16 offset )
1818 {
1819 return GetWindowWord( hwnd, offset );
1820 }
1821
1822
1823 /**********************************************************************
1824 * GetWindowWord (USER32.314)
1825 */
1826 WORD WINAPI GetWindowWord( HWND hwnd, INT offset )
1827 {
1828 WORD retvalue;
1829 WND * wndPtr = WIN_FindWndPtr( hwnd );
1830 if (!wndPtr) return 0;
1831 if (offset >= 0)
1832 {
1833 if (offset + sizeof(WORD) > wndPtr->class->cbWndExtra)
1834 {
1835 WARN("Invalid offset %d\n", offset );
1836 retvalue = 0;
1837 goto end;
1838 }
1839 retvalue = *(WORD *)(((char *)wndPtr->wExtra) + offset);
1840 goto end;
1841 }
1842 switch(offset)
1843 {
1844 case GWW_ID:
1845 if (HIWORD(wndPtr->wIDmenu))
1846 WARN("GWW_ID: discards high bits of 0x%08x!\n",
1847 wndPtr->wIDmenu);
1848 retvalue = (WORD)wndPtr->wIDmenu;
1849 goto end;
1850 case GWW_HWNDPARENT:
1851 retvalue = GetParent(hwnd);
1852 goto end;
1853 case GWW_HINSTANCE:
1854 if (HIWORD(wndPtr->hInstance))
1855 WARN("GWW_HINSTANCE: discards high bits of 0x%08x!\n",
1856 wndPtr->hInstance);
1857 retvalue = (WORD)wndPtr->hInstance;
1858 goto end;
1859 default:
1860 WARN("Invalid offset %d\n", offset );
1861 retvalue = 0;
1862 goto end;
1863 }
1864 end:
1865 WIN_ReleaseWndPtr(wndPtr);
1866 return retvalue;
1867 }
1868
1869 /**********************************************************************
1870 * SetWindowWord16 (USER.134)
1871 */
1872 WORD WINAPI SetWindowWord16( HWND16 hwnd, INT16 offset, WORD newval )
1873 {
1874 return SetWindowWord( hwnd, offset, newval );
1875 }
1876
1877
1878 /**********************************************************************
1879 * SetWindowWord (USER32.524)
1880 */
1881 WORD WINAPI SetWindowWord( HWND hwnd, INT offset, WORD newval )
1882 {
1883 WORD *ptr, retval;
1884 WND * wndPtr = WIN_FindWndPtr( hwnd );
1885 if (!wndPtr) return 0;
1886 if (offset >= 0)
1887 {
1888 if (offset + sizeof(WORD) > wndPtr->class->cbWndExtra)
1889 {
1890 WARN("Invalid offset %d\n", offset );
1891 retval = 0;
1892 goto end;
1893 }
1894 ptr = (WORD *)(((char *)wndPtr->wExtra) + offset);
1895 }
1896 else switch(offset)
1897 {
1898 case GWW_ID: ptr = (WORD *)&wndPtr->wIDmenu; break;
1899 case GWW_HINSTANCE: ptr = (WORD *)&wndPtr->hInstance; break;
1900 case GWW_HWNDPARENT: retval = SetParent( hwnd, newval );
1901 goto end;
1902 default:
1903 WARN("Invalid offset %d\n", offset );
1904 retval = 0;
1905 goto end;
1906 }
1907 retval = *ptr;
1908 *ptr = newval;
1909 end:
1910 WIN_ReleaseWndPtr(wndPtr);
1911 return retval;
1912 }
1913
1914
1915 /**********************************************************************
1916 * WIN_GetWindowLong
1917 *
1918 * Helper function for GetWindowLong().
1919 */
1920 static LONG WIN_GetWindowLong( HWND hwnd, INT offset, WINDOWPROCTYPE type )
1921 {
1922 LONG retvalue;
1923 WND * wndPtr = WIN_FindWndPtr( hwnd );
1924 if (!wndPtr) return 0;
1925 if (offset >= 0)
1926 {
1927 if (offset + sizeof(LONG) > wndPtr->class->cbWndExtra)
1928 {
1929 WARN("Invalid offset %d\n", offset );
1930 retvalue = 0;
1931 goto end;
1932 }
1933 retvalue = *(LONG *)(((char *)wndPtr->wExtra) + offset);
1934 /* Special case for dialog window procedure */
1935 if ((offset == DWL_DLGPROC) && (wndPtr->flags & WIN_ISDIALOG))
1936 {
1937 retvalue = (LONG)WINPROC_GetProc( (HWINDOWPROC)retvalue, type );
1938 goto end;
1939 }
1940 goto end;
1941 }
1942 switch(offset)
1943 {
1944 case GWL_USERDATA: retvalue = wndPtr->userdata;
1945 goto end;
1946 case GWL_STYLE: retvalue = wndPtr->dwStyle;
1947 goto end;
1948 case GWL_EXSTYLE: retvalue = wndPtr->dwExStyle;
1949 goto end;
1950 case GWL_ID: retvalue = (LONG)wndPtr->wIDmenu;
1951 goto end;
1952 case GWL_WNDPROC: retvalue = (LONG)WINPROC_GetProc( wndPtr->winproc,
1953 type );
1954 goto end;
1955 case GWL_HWNDPARENT: retvalue = GetParent(hwnd);
1956 goto end;
1957 case GWL_HINSTANCE: retvalue = wndPtr->hInstance;
1958 goto end;
1959 default:
1960 WARN("Unknown offset %d\n", offset );
1961 }
1962 retvalue = 0;
1963 end:
1964 WIN_ReleaseWndPtr(wndPtr);
1965 return retvalue;
1966 }
1967
1968
1969 /**********************************************************************
1970 * WIN_SetWindowLong
1971 *
1972 * Helper function for SetWindowLong().
1973 *
1974 * 0 is the failure code. However, in the case of failure SetLastError
1975 * must be set to distinguish between a 0 return value and a failure.
1976 *
1977 * FIXME: The error values for SetLastError may not be right. Can
1978 * someone check with the real thing?
1979 */
1980 static LONG WIN_SetWindowLong( HWND hwnd, INT offset, LONG newval,
1981 WINDOWPROCTYPE type )
1982 {
1983 LONG *ptr, retval;
1984 WND * wndPtr = WIN_FindWndPtr( hwnd );
1985 STYLESTRUCT style;
1986
1987 TRACE("%x=%p %x %lx %x\n",hwnd, wndPtr, offset, newval, type);
1988
1989 if (!wndPtr)
1990 {
1991 /* Is this the right error? */
1992 SetLastError( ERROR_INVALID_WINDOW_HANDLE );
1993 return 0;
1994 }
1995
1996 if (offset >= 0)
1997 {
1998 if (offset + sizeof(LONG) > wndPtr->class->cbWndExtra)
1999 {
2000 WARN("Invalid offset %d\n", offset );
2001
2002 /* Is this the right error? */
2003 SetLastError( ERROR_OUTOFMEMORY );
2004
2005 retval = 0;
2006 goto end;
2007 }
2008 ptr = (LONG *)(((char *)wndPtr->wExtra) + offset);
2009 /* Special case for dialog window procedure */
2010 if ((offset == DWL_DLGPROC) && (wndPtr->flags & WIN_ISDIALOG))
2011 {
2012 retval = (LONG)WINPROC_GetProc( (HWINDOWPROC)*ptr, type );
2013 WINPROC_SetProc( (HWINDOWPROC *)ptr, (WNDPROC16)newval,
2014 type, WIN_PROC_WINDOW );
2015 goto end;
2016 }
2017 }
2018 else switch(offset)
2019 {
2020 case GWL_ID:
2021 ptr = (DWORD*)&wndPtr->wIDmenu;
2022 break;
2023 case GWL_HINSTANCE:
2024 retval = SetWindowWord( hwnd, offset, newval );
2025 goto end;
2026 case GWL_WNDPROC:
2027 retval = (LONG)WINPROC_GetProc( wndPtr->winproc, type );
2028 WINPROC_SetProc( &wndPtr->winproc, (WNDPROC16)newval,
2029 type, WIN_PROC_WINDOW );
2030 goto end;
2031 case GWL_STYLE:
2032 style.styleOld = wndPtr->dwStyle;
2033 newval &= ~(WS_CHILD); /* this bit can't be changed this way */
2034 style.styleNew = newval | (style.styleOld & (WS_CHILD));
2035
2036 if (wndPtr->flags & WIN_ISWIN32)
2037 SendMessageA(hwnd,WM_STYLECHANGING,GWL_STYLE,(LPARAM)&style);
2038 wndPtr->dwStyle = style.styleNew;
2039 if (wndPtr->flags & WIN_ISWIN32)
2040 SendMessageA(hwnd,WM_STYLECHANGED,GWL_STYLE,(LPARAM)&style);
2041 retval = style.styleOld;
2042 goto end;
2043
2044 case GWL_USERDATA:
2045 ptr = &wndPtr->userdata;
2046 break;
2047 case GWL_EXSTYLE:
2048 style.styleOld = wndPtr->dwExStyle;
2049 style.styleNew = newval;
2050 if (wndPtr->flags & WIN_ISWIN32)
2051 SendMessageA(hwnd,WM_STYLECHANGING,GWL_EXSTYLE,(LPARAM)&style);
2052 wndPtr->dwExStyle = newval;
2053 if (wndPtr->flags & WIN_ISWIN32)
2054 SendMessageA(hwnd,WM_STYLECHANGED,GWL_EXSTYLE,(LPARAM)&style);
2055 retval = style.styleOld;
2056 goto end;
2057
2058 default:
2059 WARN("Invalid offset %d\n", offset );
2060
2061 /* Don't think this is right error but it should do */
2062 SetLastError( ERROR_OUTOFMEMORY );
2063
2064 retval = 0;
2065 goto end;
2066 }
2067 retval = *ptr;
2068 *ptr = newval;
2069 end:
2070 WIN_ReleaseWndPtr(wndPtr);
2071 return retval;
2072 }
2073
2074
2075 /**********************************************************************
2076 * GetWindowLong16 (USER.135)
2077 */
2078 LONG WINAPI GetWindowLong16( HWND16 hwnd, INT16 offset )
2079 {
2080 return WIN_GetWindowLong( (HWND)hwnd, offset, WIN_PROC_16 );
2081 }
2082
2083
2084 /**********************************************************************
2085 * GetWindowLongA (USER32.305)
2086 */
2087 LONG WINAPI GetWindowLongA( HWND hwnd, INT offset )
2088 {
2089 return WIN_GetWindowLong( hwnd, offset, WIN_PROC_32A );
2090 }
2091
2092
2093 /**********************************************************************
2094 * GetWindowLongW (USER32.306)
2095 */
2096 LONG WINAPI GetWindowLongW( HWND hwnd, INT offset )
2097 {
2098 return WIN_GetWindowLong( hwnd, offset, WIN_PROC_32W );
2099 }
2100
2101
2102 /**********************************************************************
2103 * SetWindowLong16 (USER.136)
2104 */
2105 LONG WINAPI SetWindowLong16( HWND16 hwnd, INT16 offset, LONG newval )
2106 {
2107 return WIN_SetWindowLong( hwnd, offset, newval, WIN_PROC_16 );
2108 }
2109
2110
2111 /**********************************************************************
2112 * SetWindowLongA (USER32.517)
2113 */
2114 LONG WINAPI SetWindowLongA( HWND hwnd, INT offset, LONG newval )
2115 {
2116 return WIN_SetWindowLong( hwnd, offset, newval, WIN_PROC_32A );
2117 }
2118
2119
2120 /**********************************************************************
2121 * SetWindowLongW (USER32.518) Set window attribute
2122 *
2123 * SetWindowLong() alters one of a window's attributes or sets a 32-bit (long)
2124 * value in a window's extra memory.
2125 *
2126 * The _hwnd_ parameter specifies the window. is the handle to a
2127 * window that has extra memory. The _newval_ parameter contains the
2128 * new attribute or extra memory value. If positive, the _offset_
2129 * parameter is the byte-addressed location in the window's extra
2130 * memory to set. If negative, _offset_ specifies the window
2131 * attribute to set, and should be one of the following values:
2132 *
2133 * GWL_EXSTYLE The window's extended window style
2134 *
2135 * GWL_STYLE The window's window style.
2136 *
2137 * GWL_WNDPROC Pointer to the window's window procedure.
2138 *
2139 * GWL_HINSTANCE The window's pplication instance handle.
2140 *
2141 * GWL_ID The window's identifier.
2142 *
2143 * GWL_USERDATA The window's user-specified data.
2144 *
2145 * If the window is a dialog box, the _offset_ parameter can be one of
2146 * the following values:
2147 *
2148 * DWL_DLGPROC The address of the window's dialog box procedure.
2149 *
2150 * DWL_MSGRESULT The return value of a message
2151 * that the dialog box procedure processed.
2152 *
2153 * DWL_USER Application specific information.
2154 *
2155 * RETURNS
2156 *
2157 * If successful, returns the previous value located at _offset_. Otherwise,
2158 * returns 0.
2159 *
2160 * NOTES
2161 *
2162 * Extra memory for a window class is specified by a nonzero cbWndExtra
2163 * parameter of the WNDCLASS structure passed to RegisterClass() at the
2164 * time of class creation.
2165 *
2166 * Using GWL_WNDPROC to set a new window procedure effectively creates
2167 * a window subclass. Use CallWindowProc() in the new windows procedure
2168 * to pass messages to the superclass's window procedure.
2169 *
2170 * The user data is reserved for use by the application which created
2171 * the window.
2172 *
2173 * Do not use GWL_STYLE to change the window's WS_DISABLE style;
2174 * instead, call the EnableWindow() function to change the window's
2175 * disabled state.
2176 *
2177 * Do not use GWL_HWNDPARENT to reset the window's parent, use
2178 * SetParent() instead.
2179 *
2180 * Win95:
2181 * When offset is GWL_STYLE and the calling app's ver is 4.0,
2182 * it sends WM_STYLECHANGING before changing the settings
2183 * and WM_STYLECHANGED afterwards.
2184 * App ver 4.0 can't use SetWindowLong to change WS_EX_TOPMOST.
2185 *
2186 * BUGS
2187 *
2188 * GWL_STYLE does not dispatch WM_STYLE... messages.
2189 *
2190 * CONFORMANCE
2191 *
2192 * ECMA-234, Win32
2193 *
2194 */
2195 LONG WINAPI SetWindowLongW(
2196 HWND hwnd, /* window to alter */
2197 INT offset, /* offset, in bytes, of location to alter */
2198 LONG newval /* new value of location */
2199 ) {
2200 return WIN_SetWindowLong( hwnd, offset, newval, WIN_PROC_32W );
2201 }
2202
2203
2204 /*******************************************************************
2205 * GetWindowText16 (USER.36)
2206 */
2207 INT16 WINAPI GetWindowText16( HWND16 hwnd, SEGPTR lpString, INT16 nMaxCount )
2208 {
2209 return (INT16)SendMessage16(hwnd, WM_GETTEXT, nMaxCount, (LPARAM)lpString);
2210 }
2211
2212
2213 /*******************************************************************
2214 * GetWindowTextA (USER32.309)
2215 */
2216 INT WINAPI GetWindowTextA( HWND hwnd, LPSTR lpString, INT nMaxCount )
2217 {
2218 return (INT)SendMessageA( hwnd, WM_GETTEXT, nMaxCount,
2219 (LPARAM)lpString );
2220 }
2221
2222 /*******************************************************************
2223 * InternalGetWindowText (USER32.326)
2224 */
2225 INT WINAPI InternalGetWindowText(HWND hwnd,LPWSTR lpString,INT nMaxCount )
2226 {
2227 FIXME("(0x%08x,%p,0x%x),stub!\n",hwnd,lpString,nMaxCount);
2228 return GetWindowTextW(hwnd,lpString,nMaxCount);
2229 }
2230
2231
2232 /*******************************************************************
2233 * GetWindowTextW (USER32.312)
2234 */
2235 INT WINAPI GetWindowTextW( HWND hwnd, LPWSTR lpString, INT nMaxCount )
2236 {
2237 return (INT)SendMessageW( hwnd, WM_GETTEXT, nMaxCount,
2238 (LPARAM)lpString );
2239 }
2240
2241
2242 /*******************************************************************
2243 * SetWindowText16 (USER.37)
2244 */
2245 BOOL16 WINAPI SetWindowText16( HWND16 hwnd, SEGPTR lpString )
2246 {
2247 return (BOOL16)SendMessage16( hwnd, WM_SETTEXT, 0, (LPARAM)lpString );
2248 }
2249
2250
2251 /*******************************************************************
2252 * SetWindowTextA (USER32.521)
2253 */
2254 BOOL WINAPI SetWindowTextA( HWND hwnd, LPCSTR lpString )
2255 {
2256 return (BOOL)SendMessageA( hwnd, WM_SETTEXT, 0, (LPARAM)lpString );
2257 }
2258
2259
2260 /*******************************************************************
2261 * SetWindowTextW (USER32.523)
2262 */
2263 BOOL WINAPI SetWindowTextW( HWND hwnd, LPCWSTR lpString )
2264 {
2265 return (BOOL)SendMessageW( hwnd, WM_SETTEXT, 0, (LPARAM)lpString );
2266 }
2267
2268
2269 /*******************************************************************
2270 * GetWindowTextLength16 (USER.38)
2271 */
2272 INT16 WINAPI GetWindowTextLength16( HWND16 hwnd )
2273 {
2274 return (INT16)SendMessage16( hwnd, WM_GETTEXTLENGTH, 0, 0 );
2275 }
2276
2277
2278 /*******************************************************************
2279 * GetWindowTextLengthA (USER32.310)
2280 */
2281 INT WINAPI GetWindowTextLengthA( HWND hwnd )
2282 {
2283 return SendMessageA( hwnd, WM_GETTEXTLENGTH, 0, 0 );
2284 }
2285
2286 /*******************************************************************
2287 * GetWindowTextLengthW (USER32.311)
2288 */
2289 INT WINAPI GetWindowTextLengthW( HWND hwnd )
2290 {
2291 return SendMessageW( hwnd, WM_GETTEXTLENGTH, 0, 0 );
2292 }
2293
2294
2295 /*******************************************************************
2296 * IsWindow16 (USER.47)
2297 */
2298 BOOL16 WINAPI IsWindow16( HWND16 hwnd )
2299 {
2300 CURRENT_STACK16->es = USER_HeapSel;
2301 return IsWindow( hwnd );
2302 }
2303
2304
2305 /*******************************************************************
2306 * IsWindow (USER32.348)
2307 */
2308 BOOL WINAPI IsWindow( HWND hwnd )
2309 {
2310 WND * wndPtr;
2311 BOOL retvalue;
2312
2313 if(!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
2314 retvalue = (wndPtr->dwMagic == WND_MAGIC);
2315 WIN_ReleaseWndPtr(wndPtr);
2316 return retvalue;
2317
2318 }
2319
2320
2321 /*****************************************************************
2322 * GetParent16 (USER.46)
2323 */
2324 HWND16 WINAPI GetParent16( HWND16 hwnd )
2325 {
2326 return (HWND16)GetParent( hwnd );
2327 }
2328
2329
2330 /*****************************************************************
2331 * GetParent (USER32.278)
2332 */
2333 HWND WINAPI GetParent( HWND hwnd )
2334 {
2335 WND *wndPtr;
2336 HWND retvalue = 0;
2337
2338 if(!(wndPtr = WIN_FindWndPtr(hwnd))) return 0;
2339 if ((!(wndPtr->dwStyle & (WS_POPUP|WS_CHILD))))
2340 goto end;
2341
2342 WIN_UpdateWndPtr(&wndPtr,((wndPtr->dwStyle & WS_CHILD) ? wndPtr->parent : wndPtr->owner));
2343 if (wndPtr)
2344 retvalue = wndPtr->hwndSelf;
2345
2346 end:
2347 WIN_ReleaseWndPtr(wndPtr);
2348 return retvalue;
2349
2350 }
2351
2352 /*****************************************************************
2353 * WIN_GetTopParent
2354 *
2355 * Get the top-level parent for a child window.
2356 * returns a locked pointer
2357 */
2358 WND* WIN_GetTopParentPtr( WND* pWnd )
2359 {
2360 WND *tmpWnd = WIN_LockWndPtr(pWnd);
2361
2362 while( tmpWnd && (tmpWnd->dwStyle & WS_CHILD))
2363 {
2364 WIN_UpdateWndPtr(&tmpWnd,tmpWnd->parent);
2365 }
2366 return tmpWnd;
2367 }
2368
2369 /*****************************************************************
2370 * WIN_GetTopParent
2371 *
2372 * Get the top-level parent for a child window.
2373 */
2374 HWND WIN_GetTopParent( HWND hwnd )
2375 {
2376 HWND retvalue;
2377 WND *tmpPtr = WIN_FindWndPtr(hwnd);
2378 WND *wndPtr = WIN_GetTopParentPtr (tmpPtr );
2379
2380 retvalue = wndPtr ? wndPtr->hwndSelf : 0;
2381 WIN_ReleaseWndPtr(tmpPtr);
2382 WIN_ReleaseWndPtr(wndPtr);
2383 return retvalue;
2384 }
2385
2386
2387 /*****************************************************************
2388 * SetParent16 (USER.233)
2389 */
2390 HWND16 WINAPI SetParent16( HWND16 hwndChild, HWND16 hwndNewParent )
2391 {
2392 return SetParent( hwndChild, hwndNewParent );
2393 }
2394
2395
2396 /*****************************************************************
2397 * SetParent (USER32.495)
2398 */
2399 HWND WINAPI SetParent( HWND hwndChild, HWND hwndNewParent )
2400 {
2401 WND *wndPtr;
2402 DWORD dwStyle;
2403 WND *pWndNewParent;
2404 WND *pWndOldParent;
2405 HWND retvalue;
2406
2407
2408 if(!(wndPtr = WIN_FindWndPtr(hwndChild))) return 0;
2409
2410 dwStyle = wndPtr->dwStyle;
2411
2412 pWndNewParent = hwndNewParent ? WIN_FindWndPtr(hwndNewParent)
2413 : WIN_LockWndPtr(pWndDesktop);
2414
2415 /* Windows hides the window first, then shows it again
2416 * including the WM_SHOWWINDOW messages and all */
2417 if (dwStyle & WS_VISIBLE)
2418 ShowWindow( hwndChild, SW_HIDE );
2419
2420 pWndOldParent = WIN_LockWndPtr((*wndPtr->pDriver->pSetParent)(wndPtr, pWndNewParent));
2421
2422 /* SetParent additionally needs to make hwndChild the topmost window
2423 in the x-order and send the expected WM_WINDOWPOSCHANGING and
2424 WM_WINDOWPOSCHANGED notification messages.
2425 */
2426 SetWindowPos( hwndChild, HWND_TOPMOST, 0, 0, 0, 0,
2427 SWP_NOACTIVATE|SWP_NOMOVE|SWP_NOSIZE|((dwStyle & WS_VISIBLE)?SWP_SHOWWINDOW:0));
2428 /* FIXME: a WM_MOVE is also generated (in the DefWindowProc handler
2429 * for WM_WINDOWPOSCHANGED) in Windows, should probably remove SWP_NOMOVE */
2430
2431 retvalue = pWndOldParent?pWndOldParent->hwndSelf:0;
2432
2433 WIN_ReleaseWndPtr(pWndOldParent);
2434 WIN_ReleaseWndPtr(pWndNewParent);
2435 WIN_ReleaseWndPtr(wndPtr);
2436
2437 return retvalue;
2438
2439 }
2440
2441 /*******************************************************************
2442 * IsChild16 (USER.48)
2443 */
2444 BOOL16 WINAPI IsChild16( HWND16 parent, HWND16 child )
2445 {
2446 return IsChild(parent,child);
2447 }
2448
2449
2450 /*******************************************************************
2451 * IsChild (USER32.339)
2452 */
2453 BOOL WINAPI IsChild( HWND parent, HWND child )
2454 {
2455 WND * wndPtr = WIN_FindWndPtr( child );
2456 while (wndPtr && (wndPtr->dwStyle & WS_CHILD))
2457 {
2458 WIN_UpdateWndPtr(&wndPtr,wndPtr->parent);
2459 if (wndPtr->hwndSelf == parent)
2460 {
2461 WIN_ReleaseWndPtr(wndPtr);
2462 return TRUE;
2463 }
2464 }
2465 WIN_ReleaseWndPtr(wndPtr);
2466 return FALSE;
2467 }
2468
2469
2470 /***********************************************************************
2471 * IsWindowVisible16 (USER.49)
2472 */
2473 BOOL16 WINAPI IsWindowVisible16( HWND16 hwnd )
2474 {
2475 return IsWindowVisible(hwnd);
2476 }
2477
2478
2479 /***********************************************************************
2480 * IsWindowVisible (USER32.351)
2481 */
2482 BOOL WINAPI IsWindowVisible( HWND hwnd )
2483 {
2484 BOOL retval;
2485 WND *wndPtr = WIN_FindWndPtr( hwnd );
2486 while (wndPtr && (wndPtr->dwStyle & WS_CHILD))
2487 {
2488 if (!(wndPtr->dwStyle & WS_VISIBLE))
2489 {
2490 WIN_ReleaseWndPtr(wndPtr);
2491 return FALSE;
2492 }
2493 WIN_UpdateWndPtr(&wndPtr,wndPtr->parent);
2494 }
2495 retval = (wndPtr && (wndPtr->dwStyle & WS_VISIBLE));
2496 WIN_ReleaseWndPtr(wndPtr);
2497 return retval;
2498
2499 }
2500
2501
2502 /***********************************************************************
2503 * WIN_IsWindowDrawable
2504 *
2505 * hwnd is drawable when it is visible, all parents are not
2506 * minimized, and it is itself not minimized unless we are
2507 * trying to draw its default class icon.
2508 */
2509 BOOL WIN_IsWindowDrawable( WND* wnd, BOOL icon )
2510 {
2511 if( (wnd->dwStyle & WS_MINIMIZE &&
2512 icon && wnd->class->hIcon) ||
2513 !(wnd->dwStyle & WS_VISIBLE) ) return FALSE;
2514 for(wnd = wnd->parent; wnd; wnd = wnd->parent)
2515 if( wnd->dwStyle & WS_MINIMIZE ||
2516 !(wnd->dwStyle & WS_VISIBLE) ) break;
2517 return (wnd == NULL);
2518 }
2519
2520
2521 /*******************************************************************
2522 * GetTopWindow16 (USER.229)
2523 */
2524 HWND16 WINAPI GetTopWindow16( HWND16 hwnd )
2525 {
2526 return GetTopWindow(hwnd);
2527 }
2528
2529
2530 /*******************************************************************
2531 * GetTopWindow (USER.229)
2532 */
2533 HWND WINAPI GetTopWindow( HWND hwnd )
2534 {
2535 HWND retval = 0;
2536 WND * wndPtr = (hwnd) ?
2537 WIN_FindWndPtr( hwnd ) : WIN_GetDesktop();
2538
2539 if (wndPtr && wndPtr->child)
2540 retval = wndPtr->child->hwndSelf;
2541
2542 WIN_ReleaseWndPtr(wndPtr);
2543 return retval;
2544 }
2545
2546
2547 /*******************************************************************
2548 * GetWindow16 (USER.262)
2549 */
2550 HWND16 WINAPI GetWindow16( HWND16 hwnd, WORD rel )
2551 {
2552 return GetWindow( hwnd,rel );
2553 }
2554
2555
2556 /*******************************************************************
2557 * GetWindow (USER32.302)
2558 */
2559 HWND WINAPI GetWindow( HWND hwnd, WORD rel )
2560 {
2561 HWND retval;
2562
2563 WND * wndPtr = WIN_FindWndPtr( hwnd );
2564 if (!wndPtr) return 0;
2565 switch(rel)
2566 {
2567 case GW_HWNDFIRST:
2568 retval = wndPtr->parent ? wndPtr->parent->child->hwndSelf : 0;
2569 goto end;
2570
2571 case GW_HWNDLAST:
2572 if (!wndPtr->parent)
2573 {
2574 retval = 0; /* Desktop window */
2575 goto end;
2576 }
2577 while (wndPtr->next)
2578 {
2579 WIN_UpdateWndPtr(&wndPtr,wndPtr->next);
2580 }
2581 retval = wndPtr->hwndSelf;
2582 goto end;
2583
2584 case GW_HWNDNEXT:
2585 retval = wndPtr->next ? wndPtr->next->hwndSelf : 0;
2586 goto end;
2587
2588 case GW_HWNDPREV:
2589 if (!wndPtr->parent)
2590 {
2591 retval = 0; /* Desktop window */
2592 goto end;
2593 }
2594 WIN_UpdateWndPtr(&wndPtr,wndPtr->parent->child); /* First sibling */
2595 if (wndPtr->hwndSelf == hwnd)
2596 {
2597 retval = 0; /* First in list */
2598 goto end;
2599 }
2600 while (wndPtr->next)
2601 {
2602 if (wndPtr->next->hwndSelf == hwnd)
2603 {
2604 retval = wndPtr->hwndSelf;
2605 goto end;
2606 }
2607 WIN_UpdateWndPtr(&wndPtr,wndPtr->next);
2608 }
2609 retval = 0;
2610 goto end;
2611
2612 case GW_OWNER:
2613 retval = wndPtr->owner ? wndPtr->owner->hwndSelf : 0;
2614 goto end;
2615
2616 case GW_CHILD:
2617 retval = wndPtr->child ? wndPtr->child->hwndSelf : 0;
2618 goto end;
2619 }
2620 retval = 0;
2621 end:
2622 WIN_ReleaseWndPtr(wndPtr);
2623 return retval;
2624 }
2625
2626
2627 /*******************************************************************
2628 * GetNextWindow16 (USER.230)
2629 */
2630 HWND16 WINAPI GetNextWindow16( HWND16 hwnd, WORD flag )
2631 {
2632 if ((flag != GW_HWNDNEXT) && (flag != GW_HWNDPREV)) return 0;
2633 return GetWindow16( hwnd, flag );
2634 }
2635
2636 /***********************************************************************
2637 * WIN_InternalShowOwnedPopups
2638 *
2639 * Internal version of ShowOwnedPopups; Wine functions should use this
2640 * to avoid interfering with application calls to ShowOwnedPopups
2641 * and to make sure the application can't prevent showing/hiding.
2642 *
2643 * Set unmanagedOnly to TRUE to show/hide unmanaged windows only.
2644 *
2645 */
2646
2647 BOOL WIN_InternalShowOwnedPopups( HWND owner, BOOL fShow, BOOL unmanagedOnly )
2648 {
2649 INT totalChild=0, count=0;
2650
2651 WND **pWnd = WIN_BuildWinArray(WIN_GetDesktop(), 0, &totalChild);
2652
2653 if (!pWnd) return TRUE;
2654
2655 /*
2656 * Show windows Lowest first, Highest last to preserve Z-Order
2657 */
2658 for (count = totalChild-1 ; count >=0; count--)
2659 {
2660 if (pWnd[count]->owner && (pWnd[count]->owner->hwndSelf == owner) && (pWnd[count]->dwStyle & WS_POPUP))
2661 {
2662 if (fShow)
2663 {
2664 /* check in window was flagged for showing in previous WIN_InternalShowOwnedPopups call */
2665 if (pWnd[count]->flags & WIN_NEEDS_INTERNALSOP)
2666 {
2667 /*
2668 * Call ShowWindow directly because an application can intercept WM_SHOWWINDOW messages
2669 */
2670 ShowWindow(pWnd[count]->hwndSelf,SW_SHOW);
2671 pWnd[count]->flags &= ~WIN_NEEDS_INTERNALSOP; /* remove the flag */
2672 }
2673 }
2674 else
2675 {
2676 if ( IsWindowVisible(pWnd[count]->hwndSelf) && /* hide only if window is visible */
2677 !( pWnd[count]->flags & WIN_NEEDS_INTERNALSOP ) && /* don't hide if previous call already did it */
2678 !( unmanagedOnly && (pWnd[count]->dwExStyle & WS_EX_MANAGED) ) ) /* don't hide managed windows if unmanagedOnly is TRUE */
2679 {
2680 /*
2681 * Call ShowWindow directly because an application can intercept WM_SHOWWINDOW messages
2682 */
2683 ShowWindow(pWnd[count]->hwndSelf,SW_HIDE);
2684 /* flag the window for showing on next WIN_InternalShowOwnedPopups call */
2685 pWnd[count]->flags |= WIN_NEEDS_INTERNALSOP;
2686 }
2687 }
2688 }
2689 }
2690 WIN_ReleaseDesktop();
2691 WIN_ReleaseWinArray(pWnd);
2692
2693 return TRUE;
2694 }
2695
2696 /*******************************************************************
2697 * ShowOwnedPopups16 (USER.265)
2698 */
2699 void WINAPI ShowOwnedPopups16( HWND16 owner, BOOL16 fShow )
2700 {
2701 ShowOwnedPopups( owner, fShow );
2702 }
2703
2704
2705 /*******************************************************************
2706 * ShowOwnedPopups (USER32.531)
2707 */
2708 BOOL WINAPI ShowOwnedPopups( HWND owner, BOOL fShow )
2709 {
2710 UINT totalChild=0, count=0;
2711
2712 WND **pWnd = WIN_BuildWinArray(WIN_GetDesktop(), 0, &totalChild);
2713
2714 if (!pWnd) return TRUE;
2715
2716 for (; count < totalChild; count++)
2717 {
2718 if (pWnd[count]->owner && (pWnd[count]->owner->hwndSelf == owner) && (pWnd[count]->dwStyle & WS_POPUP))
2719 {
2720 if (fShow)
2721 {
2722 if (pWnd[count]->flags & WIN_NEEDS_SHOW_OWNEDPOPUP)
2723 {
2724 /*
2725 * In Windows, ShowOwnedPopups(TRUE) generates WM_SHOWWINDOW messages with SW_PARENTOPENING,
2726 * regardless of the state of the owner
2727 */
2728 SendMessageA(pWnd[count]->hwndSelf, WM_SHOWWINDOW, SW_SHOW, SW_PARENTOPENING);
2729 pWnd[count]->flags &= ~WIN_NEEDS_SHOW_OWNEDPOPUP;
2730 }
2731 }
2732 else
2733 {
2734 if (IsWindowVisible(pWnd[count]->hwndSelf))
2735 {
2736 /*
2737 * In Windows, ShowOwnedPopups(FALSE) generates WM_SHOWWINDOW messages with SW_PARENTCLOSING,
2738 * regardless of the state of the owner
2739 */
2740 SendMessageA(pWnd[count]->hwndSelf, WM_SHOWWINDOW, SW_HIDE, SW_PARENTCLOSING);
2741 pWnd[count]->flags |= WIN_NEEDS_SHOW_OWNEDPOPUP;
2742 }
2743 }
2744 }
2745 }
2746
2747 WIN_ReleaseDesktop();
2748 WIN_ReleaseWinArray(pWnd);
2749 return TRUE;
2750 }
2751
2752
2753 /*******************************************************************
2754 * GetLastActivePopup16 (USER.287)
2755 */
2756 HWND16 WINAPI GetLastActivePopup16( HWND16 hwnd )
2757 {
2758 return GetLastActivePopup( hwnd );
2759 }
2760
2761 /*******************************************************************
2762 * GetLastActivePopup (USER32.256)
2763 */
2764 HWND WINAPI GetLastActivePopup( HWND hwnd )
2765 {
2766 HWND retval;
2767 WND *wndPtr =WIN_FindWndPtr(hwnd);
2768 if (!wndPtr) return hwnd;
2769 retval = wndPtr->hwndLastActive;
2770 WIN_ReleaseWndPtr(wndPtr);
2771 return retval;
2772 }
2773
2774
2775 /*******************************************************************
2776 * WIN_BuildWinArray
2777 *
2778 * Build an array of pointers to the children of a given window.
2779 * The array must be freed with WIN_ReleaseWinArray. Return NULL
2780 * when no windows are found.
2781 */
2782 WND **WIN_BuildWinArray( WND *wndPtr, UINT bwaFlags, UINT* pTotal )
2783 {
2784 /* Future: this function will lock all windows associated with this array */
2785
2786 WND **list, **ppWnd;
2787 WND *pWnd;
2788 UINT count = 0, skipOwned, skipHidden;
2789 DWORD skipFlags;
2790
2791 skipHidden = bwaFlags & BWA_SKIPHIDDEN;
2792 skipOwned = bwaFlags & BWA_SKIPOWNED;
2793 skipFlags = (bwaFlags & BWA_SKIPDISABLED) ? WS_DISABLED : 0;
2794 if( bwaFlags & BWA_SKIPICONIC ) skipFlags |= WS_MINIMIZE;
2795
2796 /* First count the windows */
2797
2798 if (!wndPtr)
2799 wndPtr = WIN_GetDesktop();
2800
2801 pWnd = WIN_LockWndPtr(wndPtr->child);
2802 while (pWnd)
2803 {
2804 if( !(pWnd->dwStyle & skipFlags) && !(skipOwned && pWnd->owner) &&
2805 (!skipHidden || (pWnd->dwStyle & WS_VISIBLE)) )
2806 count++;
2807 WIN_UpdateWndPtr(&pWnd,pWnd->next);
2808 }
2809
2810 if( count )
2811 {
2812 /* Now build the list of all windows */
2813
2814 if ((list = (WND **)HeapAlloc( GetProcessHeap(), 0, sizeof(WND *) * (count + 1))))
2815 {
2816 for (pWnd = WIN_LockWndPtr(wndPtr->child), ppWnd = list, count = 0; pWnd; WIN_UpdateWndPtr(&pWnd,pWnd->next))
2817 {
2818 if( (pWnd->dwStyle & skipFlags) || (skipOwned && pWnd->owner) );
2819 else if( !skipHidden || pWnd->dwStyle & WS_VISIBLE )
2820 {
2821 *ppWnd++ = pWnd;
2822 count++;
2823 }
2824 }
2825 WIN_ReleaseWndPtr(pWnd);
2826 *ppWnd = NULL;
2827 }
2828 else count = 0;
2829 } else list = NULL;
2830
2831 if( pTotal ) *pTotal = count;
2832 return list;
2833 }
2834 /*******************************************************************
2835 * WIN_ReleaseWinArray
2836 */
2837 void WIN_ReleaseWinArray(WND **wndArray)
2838 {
2839 /* Future: this function will also unlock all windows associated with wndArray */
2840 HeapFree( GetProcessHeap(), 0, wndArray );
2841
2842 }
2843
2844 /*******************************************************************
2845 * EnumWindows (USER32.193)
2846 */
2847 BOOL WINAPI EnumWindows( WNDENUMPROC lpEnumFunc, LPARAM lParam )
2848 {
2849 WND **list, **ppWnd;
2850
2851 /* We have to build a list of all windows first, to avoid */
2852 /* unpleasant side-effects, for instance if the callback */
2853 /* function changes the Z-order of the windows. */
2854
2855 if (!(list = WIN_BuildWinArray(WIN_GetDesktop(), 0, NULL )))
2856 {
2857 WIN_ReleaseDesktop();
2858 return FALSE;
2859 }
2860
2861 /* Now call the callback function for every window */
2862
2863 for (ppWnd = list; *ppWnd; ppWnd++)
2864 {
2865 LRESULT lpEnumFuncRetval;
2866 int iWndsLocks = 0;
2867 /* Make sure that the window still exists */
2868 if (!IsWindow((*ppWnd)->hwndSelf)) continue;
2869
2870 /* To avoid any deadlocks, all the locks on the windows
2871 structures must be suspended before the control
2872 is passed to the application */
2873 iWndsLocks = WIN_SuspendWndsLock();
2874 lpEnumFuncRetval = lpEnumFunc( (*ppWnd)->hwndSelf, lParam);
2875 WIN_RestoreWndsLock(iWndsLocks);
2876
2877 if (!lpEnumFuncRetval) break;
2878 }
2879 WIN_ReleaseWinArray(list);
2880 WIN_ReleaseDesktop();
2881 return TRUE;
2882 }
2883
2884
2885 /**********************************************************************
2886 * EnumTaskWindows16 (USER.225)
2887 */
2888 BOOL16 WINAPI EnumTaskWindows16( HTASK16 hTask, WNDENUMPROC16 func,
2889 LPARAM lParam )
2890 {
2891 WND **list, **ppWnd;
2892
2893 /* This function is the same as EnumWindows(), */
2894 /* except for an added check on the window's task. */
2895
2896 if (!(list = WIN_BuildWinArray( WIN_GetDesktop(), 0, NULL )))
2897 {
2898 WIN_ReleaseDesktop();
2899 return FALSE;
2900 }
2901
2902 /* Now call the callback function for every window */
2903
2904 for (ppWnd = list; *ppWnd; ppWnd++)
2905 {
2906 LRESULT funcRetval;
2907 int iWndsLocks = 0;
2908 /* Make sure that the window still exists */
2909 if (!IsWindow((*ppWnd)->hwndSelf)) continue;
2910 if (QUEUE_GetQueueTask((*ppWnd)->hmemTaskQ) != hTask) continue;
2911
2912 /* To avoid any deadlocks, all the locks on the windows
2913 structures must be suspended before the control
2914 is passed to the application */
2915 iWndsLocks = WIN_SuspendWndsLock();
2916 funcRetval = func( (*ppWnd)->hwndSelf, lParam );
2917 WIN_RestoreWndsLock(iWndsLocks);
2918
2919 if (!funcRetval) break;
2920 }
2921 WIN_ReleaseWinArray(list);
2922 WIN_ReleaseDesktop();
2923 return TRUE;
2924 }
2925
2926
2927 /**********************************************************************
2928 * EnumThreadWindows (USER32.190)
2929 */
2930 BOOL WINAPI EnumThreadWindows( DWORD id, WNDENUMPROC func, LPARAM lParam )
2931 {
2932 TEB *teb = THREAD_IdToTEB(id);
2933
2934 return (BOOL16)EnumTaskWindows16(teb->htask16, (WNDENUMPROC16)func, lParam);
2935 }
2936
2937
2938 /**********************************************************************
2939 * WIN_EnumChildWindows
2940 *
2941 * Helper function for EnumChildWindows().
2942 */
2943 static BOOL16 WIN_EnumChildWindows( WND **ppWnd, WNDENUMPROC func, LPARAM lParam )
2944 {
2945 WND **childList;
2946 BOOL16 ret = FALSE;
2947
2948 for ( ; *ppWnd; ppWnd++)
2949 {
2950 int iWndsLocks = 0;
2951
2952 /* Make sure that the window still exists */
2953 if (!IsWindow((*ppWnd)->hwndSelf)) continue;
2954 /* Build children list first */
2955 childList = WIN_BuildWinArray( *ppWnd, BWA_SKIPOWNED, NULL );
2956
2957 /* To avoid any deadlocks, all the locks on the windows
2958 structures must be suspended before the control
2959 is passed to the application */
2960 iWndsLocks = WIN_SuspendWndsLock();
2961 ret = func( (*ppWnd)->hwndSelf, lParam );
2962 WIN_RestoreWndsLock(iWndsLocks);
2963
2964 if (childList)
2965 {
2966 if (ret) ret = WIN_EnumChildWindows( childList, func, lParam );
2967 WIN_ReleaseWinArray(childList);
2968 }
2969 if (!ret) return FALSE;
2970 }
2971 return TRUE;
2972 }
2973
2974
2975 /**********************************************************************
2976 * EnumChildWindows (USER32.178)
2977 */
2978 BOOL WINAPI EnumChildWindows( HWND parent, WNDENUMPROC func,
2979 LPARAM lParam )
2980 {
2981 WND **list, *pParent;
2982
2983 if (!(pParent = WIN_FindWndPtr( parent ))) return FALSE;
2984 if (!(list = WIN_BuildWinArray( pParent, BWA_SKIPOWNED, NULL )))
2985 {
2986 WIN_ReleaseWndPtr(pParent);
2987 return FALSE;
2988 }
2989 WIN_EnumChildWindows( list, func, lParam );
2990 WIN_ReleaseWinArray(list);
2991 WIN_ReleaseWndPtr(pParent);
2992 return TRUE;
2993 }
2994
2995
2996 /*******************************************************************
2997 * AnyPopup16 (USER.52)
2998 */
2999 BOOL16 WINAPI AnyPopup16(void)
3000 {
3001 return AnyPopup();
3002 }
3003
3004
3005 /*******************************************************************
3006 * AnyPopup (USER32.4)
3007 */
3008 BOOL WINAPI AnyPopup(void)
3009 {
3010 WND *wndPtr = WIN_LockWndPtr(pWndDesktop->child);
3011 BOOL retvalue;
3012
3013 while (wndPtr)
3014 {
3015 if (wndPtr->owner && (wndPtr->dwStyle & WS_VISIBLE))
3016 {
3017 retvalue = TRUE;
3018 goto end;
3019 }
3020 WIN_UpdateWndPtr(&wndPtr,wndPtr->next);
3021 }
3022 retvalue = FALSE;
3023 end:
3024 WIN_ReleaseWndPtr(wndPtr);
3025 return retvalue;
3026 }
3027
3028
3029 /*******************************************************************
3030 * FlashWindow16 (USER.105)
3031 */
3032 BOOL16 WINAPI FlashWindow16( HWND16 hWnd, BOOL16 bInvert )
3033 {
3034 return FlashWindow( hWnd, bInvert );
3035 }
3036
3037
3038 /*******************************************************************
3039 * FlashWindow (USER32.202)
3040 */
3041 BOOL WINAPI FlashWindow( HWND hWnd, BOOL bInvert )
3042 {
3043 WND *wndPtr = WIN_FindWndPtr(hWnd);
3044
3045 TRACE("%04x\n", hWnd);
3046
3047 if (!wndPtr) return FALSE;
3048
3049 if (wndPtr->dwStyle & WS_MINIMIZE)
3050 {
3051 if (bInvert && !(wndPtr->flags & WIN_NCACTIVATED))
3052 {
3053 HDC hDC = GetDC(hWnd);
3054
3055 if (!SendMessage16( hWnd, WM_ERASEBKGND, (WPARAM16)hDC, 0 ))
3056 wndPtr->flags |= WIN_NEEDS_ERASEBKGND;
3057
3058 ReleaseDC( hWnd, hDC );
3059 wndPtr->flags |= WIN_NCACTIVATED;
3060 }
3061 else
3062 {
3063 PAINT_RedrawWindow( hWnd, 0, 0, RDW_INVALIDATE | RDW_ERASE |
3064 RDW_UPDATENOW | RDW_FRAME, 0 );
3065 wndPtr->flags &= ~WIN_NCACTIVATED;
3066 }
3067 WIN_ReleaseWndPtr(wndPtr);
3068 return TRUE;
3069 }
3070 else
3071 {
3072 WPARAM16 wparam;
3073 if (bInvert) wparam = !(wndPtr->flags & WIN_NCACTIVATED);
3074 else wparam = (hWnd == GetActiveWindow());
3075
3076 SendMessage16( hWnd, WM_NCACTIVATE, wparam, (LPARAM)0 );
3077 WIN_ReleaseWndPtr(wndPtr);
3078 return wparam;
3079 }
3080 }
3081
3082
3083 /*******************************************************************
3084 * SetSysModalWindow16 (USER.188)
3085 */
3086 HWND16 WINAPI SetSysModalWindow16( HWND16 hWnd )
3087 {
3088 HWND hWndOldModal = hwndSysModal;
3089 hwndSysModal = hWnd;
3090 FIXME("EMPTY STUB !! SetSysModalWindow(%04x) !\n", hWnd);
3091 return hWndOldModal;
3092 }
3093
3094
3095 /*******************************************************************
3096 * GetSysModalWindow16 (USER.52)
3097 */
3098 HWND16 WINAPI GetSysModalWindow16(void)
3099 {
3100 return hwndSysModal;
3101 }
3102
3103
3104 /*******************************************************************
3105 * GetWindowContextHelpId (USER32.303)
3106 */
3107 DWORD WINAPI GetWindowContextHelpId( HWND hwnd )
3108 {
3109 DWORD retval;
3110 WND *wnd = WIN_FindWndPtr( hwnd );
3111 if (!wnd) return 0;
3112 retval = wnd->helpContext;
3113 WIN_ReleaseWndPtr(wnd);
3114 return retval;
3115 }
3116
3117
3118 /*******************************************************************
3119 * SetWindowContextHelpId (USER32.515)
3120 */
3121 BOOL WINAPI SetWindowContextHelpId( HWND hwnd, DWORD id )
3122 {
3123 WND *wnd = WIN_FindWndPtr( hwnd );
3124 if (!wnd) return FALSE;
3125 wnd->helpContext = id;
3126 WIN_ReleaseWndPtr(wnd);
3127 return TRUE;
3128 }
3129
3130
3131 /*******************************************************************
3132 * DRAG_QueryUpdate
3133 *
3134 * recursively find a child that contains spDragInfo->pt point
3135 * and send WM_QUERYDROPOBJECT
3136 */
3137 BOOL16 DRAG_QueryUpdate( HWND hQueryWnd, SEGPTR spDragInfo, BOOL bNoSend )
3138 {
3139 BOOL16 wParam, bResult = 0;
3140 POINT pt;
3141 LPDRAGINFO16 ptrDragInfo = (LPDRAGINFO16) PTR_SEG_TO_LIN(spDragInfo);
3142 WND *ptrQueryWnd = WIN_FindWndPtr(hQueryWnd),*ptrWnd;
3143 RECT tempRect;
3144
3145 if( !ptrQueryWnd || !ptrDragInfo )
3146 goto end;
3147
3148 CONV_POINT16TO32( &ptrDragInfo->pt, &pt );
3149
3150 GetWindowRect(hQueryWnd,&tempRect);
3151
3152 if( !PtInRect(&tempRect,pt) ||
3153 (ptrQueryWnd->dwStyle & WS_DISABLED) )
3154 goto end;
3155
3156 if( !(ptrQueryWnd->dwStyle & WS_MINIMIZE) )
3157 {
3158 tempRect = ptrQueryWnd->rectClient;
3159 if(ptrQueryWnd->dwStyle & WS_CHILD)
3160 MapWindowPoints( ptrQueryWnd->parent->hwndSelf, 0,
3161 (LPPOINT)&tempRect, 2 );
3162
3163 if (PtInRect( &tempRect, pt))
3164 {
3165 wParam = 0;
3166
3167 for (ptrWnd = WIN_LockWndPtr(ptrQueryWnd->child); ptrWnd ;WIN_UpdateWndPtr(&ptrWnd,ptrWnd->next))
3168 {
3169 if( ptrWnd->dwStyle & WS_VISIBLE )
3170 {
3171 GetWindowRect( ptrWnd->hwndSelf, &tempRect );
3172 if (PtInRect( &tempRect, pt )) break;
3173 }
3174 }
3175
3176 if(ptrWnd)
3177 {
3178 TRACE_(msg)("hwnd = %04x, %d %d - %d %d\n",
3179 ptrWnd->hwndSelf, ptrWnd->rectWindow.left, ptrWnd->rectWindow.top,
3180 ptrWnd->rectWindow.right, ptrWnd->rectWindow.bottom );
3181 if( !(ptrWnd->dwStyle & WS_DISABLED) )
3182 bResult = DRAG_QueryUpdate(ptrWnd->hwndSelf, spDragInfo, bNoSend);
3183
3184 WIN_ReleaseWndPtr(ptrWnd);
3185 }
3186
3187 if(bResult)
3188 goto end;
3189 }
3190 else wParam = 1;
3191 }
3192 else wParam = 1;
3193
3194 ScreenToClient16(hQueryWnd,&ptrDragInfo->pt);
3195
3196 ptrDragInfo->hScope = hQueryWnd;
3197
3198 bResult = ( bNoSend )
3199 ? ptrQueryWnd->dwExStyle & WS_EX_ACCEPTFILES
3200 : SendMessage16( hQueryWnd ,WM_QUERYDROPOBJECT ,
3201 (WPARAM16)wParam ,(LPARAM) spDragInfo );
3202 if( !bResult )
3203 CONV_POINT32TO16( &pt, &ptrDragInfo->pt );
3204
3205 end:
3206 WIN_ReleaseWndPtr(ptrQueryWnd);
3207 return bResult;
3208 }
3209
3210
3211 /*******************************************************************
3212 * DragDetect (USER.465)
3213 */
3214 BOOL16 WINAPI DragDetect16( HWND16 hWnd, POINT16 pt )
3215 {
3216 POINT pt32;
3217 CONV_POINT16TO32( &pt, &pt32 );
3218 return DragDetect( hWnd, pt32 );
3219 }
3220
3221 /*******************************************************************
3222 * DragDetect (USER32.151)
3223 */
3224 BOOL WINAPI DragDetect( HWND hWnd, POINT pt )
3225 {
3226 MSG msg;
3227 RECT rect;
3228
3229 rect.left = pt.x - wDragWidth;
3230 rect.right = pt.x + wDragWidth;
3231
3232 rect.top = pt.y - wDragHeight;
3233 rect.bottom = pt.y + wDragHeight;
3234
3235 SetCapture(hWnd);
3236
3237 while(1)
3238 {
3239 while(PeekMessageA(&msg ,0 ,WM_MOUSEFIRST ,WM_MOUSELAST ,PM_REMOVE))
3240 {
3241 if( msg.message == WM_LBUTTONUP )
3242 {
3243 ReleaseCapture();
3244 return 0;
3245 }
3246 if( msg.message == WM_MOUSEMOVE )
3247 {
3248 POINT tmp;
3249 tmp.x = LOWORD(msg.lParam);
3250 tmp.y = HIWORD(msg.lParam);
3251 if( !PtInRect( &rect, tmp ))
3252 {
3253 ReleaseCapture();
3254 return 1;
3255 }
3256 }
3257 }
3258 WaitMessage();
3259 }
3260 return 0;
3261 }
3262
3263 /******************************************************************************
3264 * DragObject16 (USER.464)
3265 */
3266 DWORD WINAPI DragObject16( HWND16 hwndScope, HWND16 hWnd, UINT16 wObj,
3267 HANDLE16 hOfStruct, WORD szList, HCURSOR16 hCursor )
3268 {
3269 MSG msg;
3270 LPDRAGINFO16 lpDragInfo;
3271 SEGPTR spDragInfo;
3272 HCURSOR16 hDragCursor=0, hOldCursor=0, hBummer=0;
3273 HGLOBAL16 hDragInfo = GlobalAlloc16( GMEM_SHARE | GMEM_ZEROINIT, 2*sizeof(DRAGINFO16));
3274 WND *wndPtr = WIN_FindWndPtr(hWnd);
3275 HCURSOR16 hCurrentCursor = 0;
3276 HWND16 hCurrentWnd = 0;
3277
3278 lpDragInfo = (LPDRAGINFO16) GlobalLock16(hDragInfo);
3279 spDragInfo = (SEGPTR) WIN16_GlobalLock16(hDragInfo);
3280
3281 if( !lpDragInfo || !spDragInfo )
3282 {
3283 WIN_ReleaseWndPtr(wndPtr);
3284 return 0L;
3285 }
3286
3287 hBummer = LoadCursor16(0, IDC_BUMMER16);
3288
3289 if( !hBummer || !wndPtr )
3290 {
3291 GlobalFree16(hDragInfo);
3292 WIN_ReleaseWndPtr(wndPtr);
3293 return 0L;
3294 }
3295
3296 if(hCursor)
3297 {
3298 if( !(hDragCursor = CURSORICON_IconToCursor(hCursor, FALSE)) )
3299 {
3300 GlobalFree16(hDragInfo);
3301 WIN_ReleaseWndPtr(wndPtr);
3302 return 0L;
3303 }
3304
3305 if( hDragCursor == hCursor ) hDragCursor = 0;
3306 else hCursor = hDragCursor;
3307
3308 hOldCursor = SetCursor(hDragCursor);
3309 }
3310
3311 lpDragInfo->hWnd = hWnd;
3312 lpDragInfo->hScope = 0;
3313 lpDragInfo->wFlags = wObj;
3314 lpDragInfo->hList = szList; /* near pointer! */
3315 lpDragInfo->hOfStruct = hOfStruct;
3316 lpDragInfo->l = 0L;
3317
3318 SetCapture(hWnd);
3319 ShowCursor( TRUE );
3320
3321 do
3322 {
3323 do{ WaitMessage(); }
3324 while( !PeekMessageA(&msg,0,WM_MOUSEFIRST,WM_MOUSELAST,PM_REMOVE) );
3325
3326 *(lpDragInfo+1) = *lpDragInfo;
3327
3328 lpDragInfo->pt.x = msg.pt.x;
3329 lpDragInfo->pt.y = msg.pt.y;
3330
3331 /* update DRAGINFO struct */
3332 TRACE_(msg)("lpDI->hScope = %04x\n",lpDragInfo->hScope);
3333
3334 if( DRAG_QueryUpdate(hwndScope, spDragInfo, FALSE) > 0 )
3335 hCurrentCursor = hCursor;
3336 else
3337 {
3338 hCurrentCursor = hBummer;
3339 lpDragInfo->hScope = 0;
3340 }
3341 if( hCurrentCursor )
3342 SetCursor(hCurrentCursor);
3343
3344 /* send WM_DRAGLOOP */
3345 SendMessage16( hWnd, WM_DRAGLOOP, (WPARAM16)(hCurrentCursor != hBummer),
3346 (LPARAM) spDragInfo );
3347 /* send WM_DRAGSELECT or WM_DRAGMOVE */
3348 if( hCurrentWnd != lpDragInfo->hScope )
3349 {
3350 if( hCurrentWnd )
3351 SendMessage16( hCurrentWnd, WM_DRAGSELECT, 0,
3352 (LPARAM)MAKELONG(LOWORD(spDragInfo)+sizeof(DRAGINFO16),
3353 HIWORD(spDragInfo)) );
3354 hCurrentWnd = lpDragInfo->hScope;
3355 if( hCurrentWnd )
3356 SendMessage16( hCurrentWnd, WM_DRAGSELECT, 1, (LPARAM)spDragInfo);
3357 }
3358 else
3359 if( hCurrentWnd )
3360 SendMessage16( hCurrentWnd, WM_DRAGMOVE, 0, (LPARAM)spDragInfo);
3361
3362 } while( msg.message != WM_LBUTTONUP && msg.message != WM_NCLBUTTONUP );
3363
3364 ReleaseCapture();
3365 ShowCursor( FALSE );
3366
3367 if( hCursor )
3368 {
3369 SetCursor( hOldCursor );
3370 if (hDragCursor) DestroyCursor( hDragCursor );
3371 }
3372
3373 if( hCurrentCursor != hBummer )
3374 msg.lParam = SendMessage16( lpDragInfo->hScope, WM_DROPOBJECT,
3375 (WPARAM16)hWnd, (LPARAM)spDragInfo );
3376 else
3377 msg.lParam = 0;
3378 GlobalFree16(hDragInfo);
3379 WIN_ReleaseWndPtr(wndPtr);
3380
3381 return (DWORD)(msg.lParam);
3382 }
Windows API implementation