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Fix the Winelib case.
[wine.git] / windows / win.c
blobbfe006f274d4dede5f0f179bf208c494be6bcb84
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 "wine/winbase16.h"
11 #include "wine/winuser16.h"
12 #include "wine/unicode.h"
13 #include "options.h"
14 #include "class.h"
15 #include "win.h"
16 #include "heap.h"
17 #include "user.h"
18 #include "dce.h"
19 #include "cursoricon.h"
20 #include "hook.h"
21 #include "menu.h"
22 #include "message.h"
23 #include "queue.h"
24 #include "winpos.h"
25 #include "task.h"
26 #include "thread.h"
27 #include "winerror.h"
28 #include "mdi.h"
29 #include "stackframe.h"
30 #include "debugtools.h"
31
32 DEFAULT_DEBUG_CHANNEL(win);
33 DECLARE_DEBUG_CHANNEL(msg);
34
35 /**********************************************************************/
36
37 WND_DRIVER *WND_Driver = NULL;
38
39 /* Desktop window */
40 static WND *pWndDesktop = NULL;
41
42 static HWND hwndSysModal = 0;
43
44 static WORD wDragWidth = 4;
45 static WORD wDragHeight= 3;
46
47 /* thread safeness */
48 static SYSLEVEL WIN_SysLevel = { CRITICAL_SECTION_INIT, 2 };
49
50 /***********************************************************************
51 * WIN_LockWnds
52 *
53 * Locks access to all WND structures for thread safeness
54 */
55 void WIN_LockWnds( void )
56 {
57 _EnterSysLevel( &WIN_SysLevel );
58 }
59
60 /***********************************************************************
61 * WIN_UnlockWnds
62 *
63 * Unlocks access to all WND structures
64 */
65 void WIN_UnlockWnds( void )
66 {
67 _LeaveSysLevel( &WIN_SysLevel );
68 }
69
70 /***********************************************************************
71 * WIN_SuspendWndsLock
72 *
73 * Suspend the lock on WND structures.
74 * Returns the number of locks suspended
75 */
76 int WIN_SuspendWndsLock( void )
77 {
78 int isuspendedLocks = _ConfirmSysLevel( &WIN_SysLevel );
79 int count = isuspendedLocks;
80
81 while ( count-- > 0 )
82 _LeaveSysLevel( &WIN_SysLevel );
83
84 return isuspendedLocks;
85 }
86
87 /***********************************************************************
88 * WIN_RestoreWndsLock
89 *
90 * Restore the suspended locks on WND structures
91 */
92 void WIN_RestoreWndsLock( int ipreviousLocks )
93 {
94 while ( ipreviousLocks-- > 0 )
95 _EnterSysLevel( &WIN_SysLevel );
96 }
97
98 /***********************************************************************
99 * WIN_FindWndPtr
100 *
101 * Return a pointer to the WND structure corresponding to a HWND.
102 */
103 WND * WIN_FindWndPtr( HWND hwnd )
104 {
105 WND * ptr;
106
107 if (!hwnd || HIWORD(hwnd)) goto error2;
108 ptr = (WND *) USER_HEAP_LIN_ADDR( hwnd );
109 /* Lock all WND structures for thread safeness*/
110 WIN_LockWnds();
111 /*and increment destruction monitoring*/
112 ptr->irefCount++;
113
114 if (ptr->dwMagic != WND_MAGIC) goto error;
115 if (ptr->hwndSelf != hwnd)
116 {
117 ERR("Can't happen: hwnd %04x self pointer is %04x\n",hwnd, ptr->hwndSelf );
118 goto error;
119 }
120 /* returns a locked pointer */
121 return ptr;
122 error:
123 /* Unlock all WND structures for thread safeness*/
124 WIN_UnlockWnds();
125 /* and decrement destruction monitoring value */
126 ptr->irefCount--;
127
128 error2:
129 if ( hwnd!=0 )
130 SetLastError( ERROR_INVALID_WINDOW_HANDLE );
131 return NULL;
132 }
133
134 /***********************************************************************
135 * WIN_LockWndPtr
136 *
137 * Use in case the wnd ptr is not initialized with WIN_FindWndPtr
138 * but by initWndPtr;
139 * Returns the locked initialisation pointer
140 */
141 WND *WIN_LockWndPtr(WND *initWndPtr)
142 {
143 if(!initWndPtr) return 0;
144
145 /* Lock all WND structures for thread safeness*/
146 WIN_LockWnds();
147 /*and increment destruction monitoring*/
148 initWndPtr->irefCount++;
149
150 return initWndPtr;
151
152 }
153
154 /***********************************************************************
155 * WIN_ReleaseWndPtr
156 *
157 * Release the pointer to the WND structure.
158 */
159 void WIN_ReleaseWndPtr(WND *wndPtr)
160 {
161 if(!wndPtr) return;
162
163 /*Decrement destruction monitoring value*/
164 wndPtr->irefCount--;
165 /* Check if it's time to release the memory*/
166 if(wndPtr->irefCount == 0 && !wndPtr->dwMagic)
167 {
168 /* Release memory */
169 USER_HEAP_FREE( wndPtr->hwndSelf);
170 wndPtr->hwndSelf = 0;
171 }
172 else if(wndPtr->irefCount < 0)
173 {
174 /* This else if is useful to monitor the WIN_ReleaseWndPtr function */
175 ERR("forgot a Lock on %p somewhere\n",wndPtr);
176 }
177 /*unlock all WND structures for thread safeness*/
178 WIN_UnlockWnds();
179 }
180
181 /***********************************************************************
182 * WIN_UpdateWndPtr
183 *
184 * Updates the value of oldPtr to newPtr.
185 */
186 void WIN_UpdateWndPtr(WND **oldPtr, WND *newPtr)
187 {
188 WND *tmpWnd = NULL;
189
190 tmpWnd = WIN_LockWndPtr(newPtr);
191 WIN_ReleaseWndPtr(*oldPtr);
192 *oldPtr = tmpWnd;
193
194 }
195
196 /***********************************************************************
197 * WIN_DumpWindow
198 *
199 * Dump the content of a window structure to stderr.
200 */
201 void WIN_DumpWindow( HWND hwnd )
202 {
203 WND *ptr;
204 char className[80];
205 int i;
206
207 if (!(ptr = WIN_FindWndPtr( hwnd )))
208 {
209 WARN("%04x is not a window handle\n", hwnd );
210 return;
211 }
212
213 if (!GetClassNameA( hwnd, className, sizeof(className ) ))
214 strcpy( className, "#NULL#" );
215
216 TRACE("Window %04x (%p):\n", hwnd, ptr );
217 DPRINTF( "next=%p child=%p parent=%p owner=%p class=%p '%s'\n"
218 "inst=%04x taskQ=%04x updRgn=%04x active=%04x dce=%p idmenu=%08x\n"
219 "style=%08lx exstyle=%08lx wndproc=%08x text='%s'\n"
220 "client=%d,%d-%d,%d window=%d,%d-%d,%d"
221 "sysmenu=%04x flags=%04x props=%p vscroll=%p hscroll=%p\n",
222 ptr->next, ptr->child, ptr->parent, ptr->owner,
223 ptr->class, className, ptr->hInstance, ptr->hmemTaskQ,
224 ptr->hrgnUpdate, ptr->hwndLastActive, ptr->dce, ptr->wIDmenu,
225 ptr->dwStyle, ptr->dwExStyle, (UINT)ptr->winproc,
226 ptr->text ? debugstr_w(ptr->text) : "",
227 ptr->rectClient.left, ptr->rectClient.top, ptr->rectClient.right,
228 ptr->rectClient.bottom, ptr->rectWindow.left, ptr->rectWindow.top,
229 ptr->rectWindow.right, ptr->rectWindow.bottom, ptr->hSysMenu,
230 ptr->flags, ptr->pProp, ptr->pVScroll, ptr->pHScroll );
231
232 if (ptr->class->cbWndExtra)
233 {
234 DPRINTF( "extra bytes:" );
235 for (i = 0; i < ptr->class->cbWndExtra; i++)
236 DPRINTF( " %02x", *((BYTE*)ptr->wExtra+i) );
237 DPRINTF( "\n" );
238 }
239 DPRINTF( "\n" );
240 WIN_ReleaseWndPtr(ptr);
241 }
242
243
244 /***********************************************************************
245 * WIN_WalkWindows
246 *
247 * Walk the windows tree and print each window on stderr.
248 */
249 void WIN_WalkWindows( HWND hwnd, int indent )
250 {
251 WND *ptr;
252 char className[80];
253
254 ptr = hwnd ? WIN_FindWndPtr( hwnd ) : WIN_GetDesktop();
255
256 if (!ptr)
257 {
258 WARN("Invalid window handle %04x\n", hwnd );
259 return;
260 }
261
262 if (!indent) /* first time around */
263 DPRINTF( "%-16.16s %-8.8s %-6.6s %-17.17s %-8.8s %s\n",
264 "hwnd", " wndPtr", "queue", "Class Name", " Style", " WndProc"
265 " Text");
266
267 while (ptr)
268 {
269 DPRINTF( "%*s%04x%*s", indent, "", ptr->hwndSelf, 13-indent,"");
270
271 GlobalGetAtomNameA(ptr->class->atomName,className,sizeof(className));
272
273 DPRINTF( "%08lx %-6.4x %-17.17s %08x %08x %.14s\n",
274 (DWORD)ptr, ptr->hmemTaskQ, className,
275 (UINT)ptr->dwStyle, (UINT)ptr->winproc,
276 ptr->text ? debugstr_w(ptr->text) : "<null>");
277
278 if (ptr->child) WIN_WalkWindows( ptr->child->hwndSelf, indent+1 );
279 WIN_UpdateWndPtr(&ptr,ptr->next);
280
281 }
282
283 }
284
285 /***********************************************************************
286 * WIN_UnlinkWindow
287 *
288 * Remove a window from the siblings linked list.
289 */
290 BOOL WIN_UnlinkWindow( HWND hwnd )
291 {
292 WND *wndPtr, **ppWnd;
293 BOOL ret = FALSE;
294
295 if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
296 else if(!wndPtr->parent)
297 {
298 WIN_ReleaseWndPtr(wndPtr);
299 return FALSE;
300 }
301
302 ppWnd = &wndPtr->parent->child;
303 while (*ppWnd && *ppWnd != wndPtr) ppWnd = &(*ppWnd)->next;
304 if (*ppWnd)
305 {
306 *ppWnd = wndPtr->next;
307 ret = TRUE;
308 }
309 WIN_ReleaseWndPtr(wndPtr);
310 return ret;
311 }
312
313
314 /***********************************************************************
315 * WIN_LinkWindow
316 *
317 * Insert a window into the siblings linked list.
318 * The window is inserted after the specified window, which can also
319 * be specified as HWND_TOP or HWND_BOTTOM.
320 */
321 BOOL WIN_LinkWindow( HWND hwnd, HWND hwndInsertAfter )
322 {
323 WND *wndPtr, **ppWnd;
324
325 if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
326 else if(!wndPtr->parent)
327 {
328 WIN_ReleaseWndPtr(wndPtr);
329 return FALSE;
330 }
331 if ((hwndInsertAfter == HWND_TOP) || (hwndInsertAfter == HWND_BOTTOM))
332 {
333 ppWnd = &wndPtr->parent->child; /* Point to first sibling hwnd */
334 if (hwndInsertAfter == HWND_BOTTOM) /* Find last sibling hwnd */
335 while (*ppWnd) ppWnd = &(*ppWnd)->next;
336 }
337 else /* Normal case */
338 {
339 WND * afterPtr = WIN_FindWndPtr( hwndInsertAfter );
340 if (!afterPtr)
341 {
342 WIN_ReleaseWndPtr(wndPtr);
343 return FALSE;
344 }
345 ppWnd = &afterPtr->next;
346 WIN_ReleaseWndPtr(afterPtr);
347 }
348 wndPtr->next = *ppWnd;
349 *ppWnd = wndPtr;
350 WIN_ReleaseWndPtr(wndPtr);
351 return TRUE;
352 }
353
354
355 /***********************************************************************
356 * WIN_FindWinToRepaint
357 *
358 * Find a window that needs repaint.
359 */
360 HWND WIN_FindWinToRepaint( HWND hwnd, HQUEUE16 hQueue )
361 {
362 HWND hwndRet;
363 WND *pWnd;
364
365 /* Note: the desktop window never gets WM_PAINT messages
366 * The real reason why is because Windows DesktopWndProc
367 * does ValidateRgn inside WM_ERASEBKGND handler.
368 */
369
370 pWnd = hwnd ? WIN_FindWndPtr(hwnd) : WIN_LockWndPtr(pWndDesktop->child);
371
372 for ( ; pWnd ; WIN_UpdateWndPtr(&pWnd,pWnd->next))
373 {
374 if (!(pWnd->dwStyle & WS_VISIBLE))
375 {
376 TRACE("skipping window %04x\n",
377 pWnd->hwndSelf );
378 }
379 else if ((pWnd->hmemTaskQ == hQueue) &&
380 (pWnd->hrgnUpdate || (pWnd->flags & WIN_INTERNAL_PAINT)))
381 break;
382
383 else if (pWnd->child )
384 if ((hwndRet = WIN_FindWinToRepaint( pWnd->child->hwndSelf, hQueue )) )
385 {
386 WIN_ReleaseWndPtr(pWnd);
387 return hwndRet;
388 }
389
390 }
391
392 if(!pWnd)
393 {
394 return 0;
395 }
396
397 hwndRet = pWnd->hwndSelf;
398
399 /* look among siblings if we got a transparent window */
400 while (pWnd && ((pWnd->dwExStyle & WS_EX_TRANSPARENT) ||
401 !(pWnd->hrgnUpdate || (pWnd->flags & WIN_INTERNAL_PAINT))))
402 {
403 WIN_UpdateWndPtr(&pWnd,pWnd->next);
404 }
405 if (pWnd)
406 {
407 hwndRet = pWnd->hwndSelf;
408 WIN_ReleaseWndPtr(pWnd);
409 }
410 TRACE("found %04x\n",hwndRet);
411 return hwndRet;
412 }
413
414
415 /***********************************************************************
416 * WIN_DestroyWindow
417 *
418 * Destroy storage associated to a window. "Internals" p.358
419 * returns a locked wndPtr->next
420 */
421 static WND* WIN_DestroyWindow( WND* wndPtr )
422 {
423 HWND hwnd = wndPtr->hwndSelf;
424 WND *pWnd;
425
426 TRACE("%04x\n", wndPtr->hwndSelf );
427
428 /* free child windows */
429 WIN_LockWndPtr(wndPtr->child);
430 while ((pWnd = wndPtr->child))
431 {
432 wndPtr->child = WIN_DestroyWindow( pWnd );
433 WIN_ReleaseWndPtr(pWnd);
434 }
435
436 /*
437 * Clear the update region to make sure no WM_PAINT messages will be
438 * generated for this window while processing the WM_NCDESTROY.
439 */
440 if ((wndPtr->hrgnUpdate) || (wndPtr->flags & WIN_INTERNAL_PAINT))
441 {
442 if (wndPtr->hrgnUpdate > 1)
443 DeleteObject( wndPtr->hrgnUpdate );
444
445 QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
446
447 wndPtr->hrgnUpdate = 0;
448 }
449
450 /*
451 * Send the WM_NCDESTROY to the window being destroyed.
452 */
453 SendMessageA( wndPtr->hwndSelf, WM_NCDESTROY, 0, 0);
454
455 /* FIXME: do we need to fake QS_MOUSEMOVE wakebit? */
456
457 WINPOS_CheckInternalPos( wndPtr );
458 if( hwnd == GetCapture()) ReleaseCapture();
459
460 /* free resources associated with the window */
461
462 TIMER_RemoveWindowTimers( wndPtr->hwndSelf );
463 PROPERTY_RemoveWindowProps( wndPtr );
464
465 wndPtr->dwMagic = 0; /* Mark it as invalid */
466
467 /* toss stale messages from the queue */
468
469 if( wndPtr->hmemTaskQ )
470 {
471 BOOL bPostQuit = FALSE;
472 WPARAM wQuitParam = 0;
473 MESSAGEQUEUE* msgQ = (MESSAGEQUEUE*) QUEUE_Lock(wndPtr->hmemTaskQ);
474 QMSG *qmsg;
475
476 while( (qmsg = QUEUE_FindMsg(msgQ, hwnd, 0, 0)) != 0 )
477 {
478 if( qmsg->msg.message == WM_QUIT )
479 {
480 bPostQuit = TRUE;
481 wQuitParam = qmsg->msg.wParam;
482 }
483 QUEUE_RemoveMsg(msgQ, qmsg);
484 }
485
486 QUEUE_Unlock(msgQ);
487
488 /* repost WM_QUIT to make sure this app exits its message loop */
489 if( bPostQuit ) PostQuitMessage(wQuitParam);
490 wndPtr->hmemTaskQ = 0;
491 }
492
493 if (!(wndPtr->dwStyle & WS_CHILD))
494 if (wndPtr->wIDmenu)
495 {
496 DestroyMenu( wndPtr->wIDmenu );
497 wndPtr->wIDmenu = 0;
498 }
499 if (wndPtr->hSysMenu)
500 {
501 DestroyMenu( wndPtr->hSysMenu );
502 wndPtr->hSysMenu = 0;
503 }
504 wndPtr->pDriver->pDestroyWindow( wndPtr );
505 DCE_FreeWindowDCE( wndPtr ); /* Always do this to catch orphaned DCs */
506 WINPROC_FreeProc( wndPtr->winproc, WIN_PROC_WINDOW );
507 wndPtr->class->cWindows--;
508 wndPtr->class = NULL;
509
510 WIN_UpdateWndPtr(&pWnd,wndPtr->next);
511
512 wndPtr->pDriver->pFinalize(wndPtr);
513
514 return pWnd;
515 }
516
517 /***********************************************************************
518 * WIN_ResetQueueWindows
519 *
520 * Reset the queue of all the children of a given window.
521 * Return TRUE if something was done.
522 */
523 BOOL WIN_ResetQueueWindows( WND* wnd, HQUEUE16 hQueue, HQUEUE16 hNew )
524 {
525 BOOL ret = FALSE;
526
527 if (hNew) /* Set a new queue */
528 {
529 for (wnd = WIN_LockWndPtr(wnd->child); (wnd);WIN_UpdateWndPtr(&wnd,wnd->next))
530 {
531 if (wnd->hmemTaskQ == hQueue)
532 {
533 wnd->hmemTaskQ = hNew;
534 ret = TRUE;
535 }
536 if (wnd->child)
537 {
538 ret |= WIN_ResetQueueWindows( wnd, hQueue, hNew );
539 }
540 }
541 }
542 else /* Queue is being destroyed */
543 {
544 while (wnd->child)
545 {
546 WND *tmp = WIN_LockWndPtr(wnd->child);
547 WND *tmp2;
548 ret = FALSE;
549 while (tmp)
550 {
551 if (tmp->hmemTaskQ == hQueue)
552 {
553 DestroyWindow( tmp->hwndSelf );
554 ret = TRUE;
555 break;
556 }
557 tmp2 = WIN_LockWndPtr(tmp->child);
558 if (tmp2 && WIN_ResetQueueWindows(tmp2,hQueue,0))
559 ret = TRUE;
560 else
561 {
562 WIN_UpdateWndPtr(&tmp,tmp->next);
563 }
564 WIN_ReleaseWndPtr(tmp2);
565 }
566 WIN_ReleaseWndPtr(tmp);
567 if (!ret) break;
568 }
569 }
570 return ret;
571 }
572
573 /***********************************************************************
574 * WIN_CreateDesktopWindow
575 *
576 * Create the desktop window.
577 */
578 BOOL WIN_CreateDesktopWindow(void)
579 {
580 CLASS *class;
581 HWND hwndDesktop;
582
583 TRACE("Creating desktop window\n");
584
585
586 if (!ICONTITLE_Init() ||
587 !WINPOS_CreateInternalPosAtom() ||
588 !(class = CLASS_FindClassByAtom( DESKTOP_CLASS_ATOM, 0 )))
589 return FALSE;
590
591 hwndDesktop = USER_HEAP_ALLOC( sizeof(WND)+class->cbWndExtra );
592 if (!hwndDesktop) return FALSE;
593 pWndDesktop = (WND *) USER_HEAP_LIN_ADDR( hwndDesktop );
594
595 pWndDesktop->pDriver = WND_Driver;
596 pWndDesktop->pDriver->pInitialize(pWndDesktop);
597
598 pWndDesktop->next = NULL;
599 pWndDesktop->child = NULL;
600 pWndDesktop->parent = NULL;
601 pWndDesktop->owner = NULL;
602 pWndDesktop->class = class;
603 pWndDesktop->dwMagic = WND_MAGIC;
604 pWndDesktop->hwndSelf = hwndDesktop;
605 pWndDesktop->hInstance = 0;
606 pWndDesktop->rectWindow.left = 0;
607 pWndDesktop->rectWindow.top = 0;
608 pWndDesktop->rectWindow.right = GetSystemMetrics(SM_CXSCREEN);
609 pWndDesktop->rectWindow.bottom = GetSystemMetrics(SM_CYSCREEN);
610 pWndDesktop->rectClient = pWndDesktop->rectWindow;
611 pWndDesktop->text = NULL;
612 pWndDesktop->hmemTaskQ = GetFastQueue16();
613 pWndDesktop->hrgnUpdate = 0;
614 pWndDesktop->hwndLastActive = hwndDesktop;
615 pWndDesktop->dwStyle = WS_VISIBLE | WS_CLIPCHILDREN |
616 WS_CLIPSIBLINGS;
617 pWndDesktop->dwExStyle = 0;
618 pWndDesktop->dce = NULL;
619 pWndDesktop->pVScroll = NULL;
620 pWndDesktop->pHScroll = NULL;
621 pWndDesktop->pProp = NULL;
622 pWndDesktop->wIDmenu = 0;
623 pWndDesktop->helpContext = 0;
624 pWndDesktop->flags = Options.desktopGeometry ? WIN_NATIVE : 0;
625 pWndDesktop->hSysMenu = 0;
626 pWndDesktop->userdata = 0;
627 pWndDesktop->winproc = (WNDPROC16)class->winproc;
628 pWndDesktop->irefCount = 0;
629
630 /* FIXME: How do we know if it should be Unicode or not */
631 if(!pWndDesktop->pDriver->pCreateDesktopWindow(pWndDesktop, class, FALSE))
632 return FALSE;
633
634 SendMessageA( hwndDesktop, WM_NCCREATE, 0, 0 );
635 pWndDesktop->flags |= WIN_NEEDS_ERASEBKGND;
636 return TRUE;
637 }
638
639
640 /***********************************************************************
641 * WIN_FixCoordinates
642 *
643 * Fix the coordinates - Helper for WIN_CreateWindowEx.
644 * returns default show mode in sw.
645 * Note: the feature presented as undocumented *is* in the MSDN since 1993.
646 */
647 static void WIN_FixCoordinates( CREATESTRUCTA *cs, INT *sw)
648 {
649 if (cs->x == CW_USEDEFAULT || cs->x == CW_USEDEFAULT16 ||
650 cs->cx == CW_USEDEFAULT || cs->cx == CW_USEDEFAULT16)
651 {
652 if (cs->style & (WS_CHILD | WS_POPUP))
653 {
654 if (cs->x == CW_USEDEFAULT || cs->x == CW_USEDEFAULT16) cs->x = cs->y = 0;
655 if (cs->cx == CW_USEDEFAULT || cs->cx == CW_USEDEFAULT16) cs->cx = cs->cy = 0;
656 }
657 else /* overlapped window */
658 {
659 STARTUPINFOA info;
660
661 GetStartupInfoA( &info );
662
663 if (cs->x == CW_USEDEFAULT || cs->x == CW_USEDEFAULT16)
664 {
665 /* Never believe Microsoft's documentation... CreateWindowEx doc says
666 * that if an overlapped window is created with WS_VISIBLE style bit
667 * set and the x parameter is set to CW_USEDEFAULT, the system ignores
668 * the y parameter. However, disassembling NT implementation (WIN32K.SYS)
669 * reveals that
670 *
671 * 1) not only it checks for CW_USEDEFAULT but also for CW_USEDEFAULT16
672 * 2) it does not ignore the y parameter as the docs claim; instead, it
673 * uses it as second parameter to ShowWindow() unless y is either
674 * CW_USEDEFAULT or CW_USEDEFAULT16.
675 *
676 * The fact that we didn't do 2) caused bogus windows pop up when wine
677 * was running apps that were using this obscure feature. Example -
678 * calc.exe that comes with Win98 (only Win98, it's different from
679 * the one that comes with Win95 and NT)
680 */
681 if (cs->y != CW_USEDEFAULT && cs->y != CW_USEDEFAULT16) *sw = cs->y;
682 cs->x = (info.dwFlags & STARTF_USEPOSITION) ? info.dwX : 0;
683 cs->y = (info.dwFlags & STARTF_USEPOSITION) ? info.dwY : 0;
684 }
685
686 if (cs->cx == CW_USEDEFAULT || cs->cx == CW_USEDEFAULT16)
687 {
688 if (info.dwFlags & STARTF_USESIZE)
689 {
690 cs->cx = info.dwXSize;
691 cs->cy = info.dwYSize;
692 }
693 else /* if no other hint from the app, pick 3/4 of the screen real estate */
694 {
695 RECT r;
696 SystemParametersInfoA( SPI_GETWORKAREA, 0, &r, 0);
697 cs->cx = (((r.right - r.left) * 3) / 4) - cs->x;
698 cs->cy = (((r.bottom - r.top) * 3) / 4) - cs->y;
699 }
700 }
701 }
702 }
703 }
704
705 /***********************************************************************
706 * WIN_CreateWindowEx
707 *
708 * Implementation of CreateWindowEx().
709 */
710 static HWND WIN_CreateWindowEx( CREATESTRUCTA *cs, ATOM classAtom,
711 WINDOWPROCTYPE type )
712 {
713 INT sw = SW_SHOW;
714 CLASS *classPtr;
715 WND *wndPtr;
716 HWND retvalue;
717 HWND16 hwnd, hwndLinkAfter;
718 POINT maxSize, maxPos, minTrack, maxTrack;
719 LRESULT (CALLBACK *localSend32)(HWND, UINT, WPARAM, LPARAM);
720
721 TRACE("%s %s %08lx %08lx %d,%d %dx%d %04x %04x %08x %p\n",
722 (type == WIN_PROC_32W) ? debugres_w((LPWSTR)cs->lpszName) : debugres_a(cs->lpszName),
723 (type == WIN_PROC_32W) ? debugres_w((LPWSTR)cs->lpszClass) : debugres_a(cs->lpszClass),
724 cs->dwExStyle, cs->style, cs->x, cs->y, cs->cx, cs->cy,
725 cs->hwndParent, cs->hMenu, cs->hInstance, cs->lpCreateParams );
726
727 TRACE("winproc type is %d (%s)\n", type, (type == WIN_PROC_16) ? "WIN_PROC_16" :
728 ((type == WIN_PROC_32A) ? "WIN_PROC_32A" : "WIN_PROC_32W") );
729
730 /* Find the parent window */
731
732 if (cs->hwndParent)
733 {
734 /* Make sure parent is valid */
735 if (!IsWindow( cs->hwndParent ))
736 {
737 WARN("Bad parent %04x\n", cs->hwndParent );
738 return 0;
739 }
740 } else if ((cs->style & WS_CHILD) && !(cs->style & WS_POPUP)) {
741 WARN("No parent for child window\n" );
742 return 0; /* WS_CHILD needs a parent, but WS_POPUP doesn't */
743 }
744
745 /* Find the window class */
746 if (!(classPtr = CLASS_FindClassByAtom( classAtom, (type == WIN_PROC_16) ? GetExePtr(cs->hInstance) : cs->hInstance )))
747 {
748 WARN("Bad class '%s'\n", cs->lpszClass );
749 return 0;
750 }
751
752 WIN_FixCoordinates(cs, &sw); /* fix default coordinates */
753
754 /* Create the window structure */
755
756 if (!(hwnd = USER_HEAP_ALLOC( sizeof(*wndPtr) + classPtr->cbWndExtra
757 - sizeof(wndPtr->wExtra) )))
758 {
759 TRACE("out of memory\n" );
760 return 0;
761 }
762
763 /* Fill the window structure */
764
765 wndPtr = WIN_LockWndPtr((WND *) USER_HEAP_LIN_ADDR( hwnd ));
766 wndPtr->next = NULL;
767 wndPtr->child = NULL;
768
769 if ((cs->style & WS_CHILD) && cs->hwndParent)
770 {
771 wndPtr->parent = WIN_FindWndPtr( cs->hwndParent );
772 wndPtr->owner = NULL;
773 WIN_ReleaseWndPtr(wndPtr->parent);
774 }
775 else
776 {
777 wndPtr->parent = pWndDesktop;
778 if (!cs->hwndParent || (cs->hwndParent == pWndDesktop->hwndSelf))
779 wndPtr->owner = NULL;
780 else
781 {
782 WND *tmpWnd = WIN_FindWndPtr(cs->hwndParent);
783 wndPtr->owner = WIN_GetTopParentPtr(tmpWnd);
784 WIN_ReleaseWndPtr(wndPtr->owner);
785 WIN_ReleaseWndPtr(tmpWnd);
786 }
787 }
788
789
790 wndPtr->pDriver = wndPtr->parent->pDriver;
791 wndPtr->pDriver->pInitialize(wndPtr);
792
793 wndPtr->class = classPtr;
794 wndPtr->winproc = classPtr->winproc;
795 wndPtr->dwMagic = WND_MAGIC;
796 wndPtr->hwndSelf = hwnd;
797 wndPtr->hInstance = cs->hInstance;
798 wndPtr->text = NULL;
799 wndPtr->hmemTaskQ = GetFastQueue16();
800 wndPtr->hrgnUpdate = 0;
801 wndPtr->hrgnWnd = 0;
802 wndPtr->hwndLastActive = hwnd;
803 wndPtr->dwStyle = cs->style & ~WS_VISIBLE;
804 wndPtr->dwExStyle = cs->dwExStyle;
805 wndPtr->wIDmenu = 0;
806 wndPtr->helpContext = 0;
807 wndPtr->flags = (type == WIN_PROC_16) ? 0 : WIN_ISWIN32;
808 wndPtr->pVScroll = NULL;
809 wndPtr->pHScroll = NULL;
810 wndPtr->pProp = NULL;
811 wndPtr->userdata = 0;
812 wndPtr->hSysMenu = (wndPtr->dwStyle & WS_SYSMENU)
813 ? MENU_GetSysMenu( hwnd, 0 ) : 0;
814 wndPtr->irefCount = 1;
815
816 if (classPtr->cbWndExtra) memset( wndPtr->wExtra, 0, classPtr->cbWndExtra);
817
818 /* Call the WH_CBT hook */
819
820 hwndLinkAfter = ((cs->style & (WS_CHILD|WS_MAXIMIZE)) == WS_CHILD)
821 ? HWND_BOTTOM : HWND_TOP;
822
823 if (HOOK_IsHooked( WH_CBT ))
824 {
825 CBT_CREATEWNDA cbtc;
826 LRESULT ret;
827
828 cbtc.lpcs = cs;
829 cbtc.hwndInsertAfter = hwndLinkAfter;
830 ret = (type == WIN_PROC_32W) ? HOOK_CallHooksW(WH_CBT, HCBT_CREATEWND, hwnd, (LPARAM)&cbtc)
831 : HOOK_CallHooksA(WH_CBT, HCBT_CREATEWND, hwnd, (LPARAM)&cbtc);
832 if (ret)
833 {
834 TRACE("CBT-hook returned 0\n");
835 wndPtr->pDriver->pFinalize(wndPtr);
836 USER_HEAP_FREE( hwnd );
837 retvalue = 0;
838 goto end;
839 }
840 }
841
842 /* Increment class window counter */
843
844 classPtr->cWindows++;
845
846 /* Correct the window style */
847
848 if (!(cs->style & WS_CHILD))
849 {
850 wndPtr->dwStyle |= WS_CLIPSIBLINGS;
851 if (!(cs->style & WS_POPUP))
852 {
853 wndPtr->dwStyle |= WS_CAPTION;
854 wndPtr->flags |= WIN_NEED_SIZE;
855 }
856 }
857
858 /* Get class or window DC if needed */
859
860 if (classPtr->style & CS_OWNDC) wndPtr->dce = DCE_AllocDCE(hwnd,DCE_WINDOW_DC);
861 else if (classPtr->style & CS_CLASSDC) wndPtr->dce = classPtr->dce;
862 else wndPtr->dce = NULL;
863
864 /* Initialize the dimensions before sending WM_GETMINMAXINFO */
865
866 wndPtr->rectWindow.left = cs->x;
867 wndPtr->rectWindow.top = cs->y;
868 wndPtr->rectWindow.right = cs->x + cs->cx;
869 wndPtr->rectWindow.bottom = cs->y + cs->cy;
870 wndPtr->rectClient = wndPtr->rectWindow;
871
872 /* Send the WM_GETMINMAXINFO message and fix the size if needed */
873
874 if ((cs->style & WS_THICKFRAME) || !(cs->style & (WS_POPUP | WS_CHILD)))
875 {
876 WINPOS_GetMinMaxInfo( wndPtr, &maxSize, &maxPos, &minTrack, &maxTrack);
877 if (maxSize.x < cs->cx) cs->cx = maxSize.x;
878 if (maxSize.y < cs->cy) cs->cy = maxSize.y;
879 if (cs->cx < minTrack.x ) cs->cx = minTrack.x;
880 if (cs->cy < minTrack.y ) cs->cy = minTrack.y;
881 }
882
883 if (cs->cx < 0) cs->cx = 0;
884 if (cs->cy < 0) cs->cy = 0;
885
886 wndPtr->rectWindow.left = cs->x;
887 wndPtr->rectWindow.top = cs->y;
888 wndPtr->rectWindow.right = cs->x + cs->cx;
889 wndPtr->rectWindow.bottom = cs->y + cs->cy;
890 wndPtr->rectClient = wndPtr->rectWindow;
891
892 if(!wndPtr->pDriver->pCreateWindow(wndPtr, classPtr, cs, type == WIN_PROC_32W))
893 {
894 retvalue = FALSE;
895 goto end;
896 }
897
898 /* Set the window menu */
899
900 if ((wndPtr->dwStyle & (WS_CAPTION | WS_CHILD)) == WS_CAPTION )
901 {
902 if (cs->hMenu) SetMenu(hwnd, cs->hMenu);
903 else
904 {
905 /* FIXME: should check if classPtr->menuNameW can be used as is */
906 LPCSTR menuName = (LPCSTR)GetClassLongA( hwnd, GCL_MENUNAME );
907 if (menuName)
908 {
909 if (HIWORD(cs->hInstance))
910 cs->hMenu = LoadMenuA(cs->hInstance,menuName);
911 else
912 cs->hMenu = LoadMenu16(cs->hInstance,menuName);
913
914 if (cs->hMenu) SetMenu( hwnd, cs->hMenu );
915 }
916 }
917 }
918 else wndPtr->wIDmenu = (UINT)cs->hMenu;
919
920 /* Send the WM_CREATE message
921 * Perhaps we shouldn't allow width/height changes as well.
922 * See p327 in "Internals".
923 */
924
925 maxPos.x = wndPtr->rectWindow.left; maxPos.y = wndPtr->rectWindow.top;
926
927 localSend32 = (type == WIN_PROC_32W) ? SendMessageW : SendMessageA;
928 if( (*localSend32)( hwnd, WM_NCCREATE, 0, (LPARAM)cs) )
929 {
930 /* Insert the window in the linked list */
931
932 WIN_LinkWindow( hwnd, hwndLinkAfter );
933
934 WINPOS_SendNCCalcSize( hwnd, FALSE, &wndPtr->rectWindow,
935 NULL, NULL, 0, &wndPtr->rectClient );
936 OffsetRect(&wndPtr->rectWindow, maxPos.x - wndPtr->rectWindow.left,
937 maxPos.y - wndPtr->rectWindow.top);
938 if( ((*localSend32)( hwnd, WM_CREATE, 0, (LPARAM)cs )) != -1 )
939 {
940 /* Send the size messages */
941
942 if (!(wndPtr->flags & WIN_NEED_SIZE))
943 {
944 /* send it anyway */
945 if (((wndPtr->rectClient.right-wndPtr->rectClient.left) <0)
946 ||((wndPtr->rectClient.bottom-wndPtr->rectClient.top)<0))
947 WARN("sending bogus WM_SIZE message 0x%08lx\n",
948 MAKELONG(wndPtr->rectClient.right-wndPtr->rectClient.left,
949 wndPtr->rectClient.bottom-wndPtr->rectClient.top));
950 (*localSend32)( hwnd, WM_SIZE, SIZE_RESTORED,
951 MAKELONG(wndPtr->rectClient.right-wndPtr->rectClient.left,
952 wndPtr->rectClient.bottom-wndPtr->rectClient.top));
953 (*localSend32)( hwnd, WM_MOVE, 0,
954 MAKELONG( wndPtr->rectClient.left,
955 wndPtr->rectClient.top ) );
956 }
957
958 /* Show the window, maximizing or minimizing if needed */
959
960 if (wndPtr->dwStyle & (WS_MINIMIZE | WS_MAXIMIZE))
961 {
962 RECT16 newPos;
963 UINT16 swFlag = (wndPtr->dwStyle & WS_MINIMIZE) ? SW_MINIMIZE : SW_MAXIMIZE;
964 wndPtr->dwStyle &= ~(WS_MAXIMIZE | WS_MINIMIZE);
965 WINPOS_MinMaximize( wndPtr, swFlag, &newPos );
966 swFlag = ((wndPtr->dwStyle & WS_CHILD) || GetActiveWindow())
967 ? SWP_NOACTIVATE | SWP_NOZORDER | SWP_FRAMECHANGED
968 : SWP_NOZORDER | SWP_FRAMECHANGED;
969 SetWindowPos( hwnd, 0, newPos.left, newPos.top,
970 newPos.right, newPos.bottom, swFlag );
971 }
972
973 if( (wndPtr->dwStyle & WS_CHILD) && !(wndPtr->dwExStyle & WS_EX_NOPARENTNOTIFY) )
974 {
975 /* Notify the parent window only */
976
977 SendMessageA( wndPtr->parent->hwndSelf, WM_PARENTNOTIFY,
978 MAKEWPARAM(WM_CREATE, wndPtr->wIDmenu), (LPARAM)hwnd );
979 if( !IsWindow(hwnd) )
980 {
981 retvalue = 0;
982 goto end;
983 }
984 }
985
986 if (cs->style & WS_VISIBLE) ShowWindow( hwnd, sw );
987
988 /* Call WH_SHELL hook */
989
990 if (!(wndPtr->dwStyle & WS_CHILD) && !wndPtr->owner)
991 HOOK_CallHooks16( WH_SHELL, HSHELL_WINDOWCREATED, hwnd, 0 );
992
993 TRACE("created window %04x\n", hwnd);
994 retvalue = hwnd;
995 goto end;
996 }
997 WIN_UnlinkWindow( hwnd );
998 }
999
1000 /* Abort window creation */
1001
1002 WARN("aborted by WM_xxCREATE!\n");
1003 WIN_ReleaseWndPtr(WIN_DestroyWindow( wndPtr ));
1004 retvalue = 0;
1005 end:
1006 WIN_ReleaseWndPtr(wndPtr);
1007
1008 return retvalue;
1009 }
1010
1011
1012 /***********************************************************************
1013 * CreateWindow16 (USER.41)
1014 */
1015 HWND16 WINAPI CreateWindow16( LPCSTR className, LPCSTR windowName,
1016 DWORD style, INT16 x, INT16 y, INT16 width,
1017 INT16 height, HWND16 parent, HMENU16 menu,
1018 HINSTANCE16 instance, LPVOID data )
1019 {
1020 return CreateWindowEx16( 0, className, windowName, style,
1021 x, y, width, height, parent, menu, instance, data );
1022 }
1023
1024
1025 /***********************************************************************
1026 * CreateWindowEx16 (USER.452)
1027 */
1028 HWND16 WINAPI CreateWindowEx16( DWORD exStyle, LPCSTR className,
1029 LPCSTR windowName, DWORD style, INT16 x,
1030 INT16 y, INT16 width, INT16 height,
1031 HWND16 parent, HMENU16 menu,
1032 HINSTANCE16 instance, LPVOID data )
1033 {
1034 ATOM classAtom;
1035 CREATESTRUCTA cs;
1036 char buffer[256];
1037
1038 /* Find the class atom */
1039
1040 if (HIWORD(className))
1041 {
1042 if (!(classAtom = GlobalFindAtomA( className )))
1043 {
1044 ERR( "bad class name %s\n", debugres_a(className) );
1045 return 0;
1046 }
1047 }
1048 else
1049 {
1050 classAtom = LOWORD(className);
1051 if (!GlobalGetAtomNameA( classAtom, buffer, sizeof(buffer) ))
1052 {
1053 ERR( "bad atom %x\n", classAtom);
1054 return 0;
1055 }
1056 className = buffer;
1057 }
1058
1059 /* Fix the coordinates */
1060
1061 cs.x = (x == CW_USEDEFAULT16) ? CW_USEDEFAULT : (INT)x;
1062 cs.y = (y == CW_USEDEFAULT16) ? CW_USEDEFAULT : (INT)y;
1063 cs.cx = (width == CW_USEDEFAULT16) ? CW_USEDEFAULT : (INT)width;
1064 cs.cy = (height == CW_USEDEFAULT16) ? CW_USEDEFAULT : (INT)height;
1065
1066 /* Create the window */
1067
1068 cs.lpCreateParams = data;
1069 cs.hInstance = (HINSTANCE)instance;
1070 cs.hMenu = (HMENU)menu;
1071 cs.hwndParent = (HWND)parent;
1072 cs.style = style;
1073 cs.lpszName = windowName;
1074 cs.lpszClass = className;
1075 cs.dwExStyle = exStyle;
1076
1077 return WIN_CreateWindowEx( &cs, classAtom, WIN_PROC_16 );
1078 }
1079
1080
1081 /***********************************************************************
1082 * CreateWindowExA (USER32.83)
1083 */
1084 HWND WINAPI CreateWindowExA( DWORD exStyle, LPCSTR className,
1085 LPCSTR windowName, DWORD style, INT x,
1086 INT y, INT width, INT height,
1087 HWND parent, HMENU menu,
1088 HINSTANCE instance, LPVOID data )
1089 {
1090 ATOM classAtom;
1091 CREATESTRUCTA cs;
1092 char buffer[256];
1093
1094 if(!instance)
1095 instance=GetModuleHandleA(NULL);
1096
1097 if(exStyle & WS_EX_MDICHILD)
1098 return MDI_CreateMDIWindowA(className, windowName, style, x, y, width, height, parent, instance, (LPARAM)data);
1099
1100 /* Find the class atom */
1101
1102 if (HIWORD(className))
1103 {
1104 if (!(classAtom = GlobalFindAtomA( className )))
1105 {
1106 ERR( "bad class name %s\n", debugres_a(className) );
1107 return 0;
1108 }
1109 }
1110 else
1111 {
1112 classAtom = LOWORD(className);
1113 if (!GlobalGetAtomNameA( classAtom, buffer, sizeof(buffer) ))
1114 {
1115 ERR( "bad atom %x\n", classAtom);
1116 return 0;
1117 }
1118 className = buffer;
1119 }
1120
1121 /* Create the window */
1122
1123 cs.lpCreateParams = data;
1124 cs.hInstance = instance;
1125 cs.hMenu = menu;
1126 cs.hwndParent = parent;
1127 cs.x = x;
1128 cs.y = y;
1129 cs.cx = width;
1130 cs.cy = height;
1131 cs.style = style;
1132 cs.lpszName = windowName;
1133 cs.lpszClass = className;
1134 cs.dwExStyle = exStyle;
1135
1136 return WIN_CreateWindowEx( &cs, classAtom, WIN_PROC_32A );
1137 }
1138
1139
1140 /***********************************************************************
1141 * CreateWindowExW (USER32.84)
1142 */
1143 HWND WINAPI CreateWindowExW( DWORD exStyle, LPCWSTR className,
1144 LPCWSTR windowName, DWORD style, INT x,
1145 INT y, INT width, INT height,
1146 HWND parent, HMENU menu,
1147 HINSTANCE instance, LPVOID data )
1148 {
1149 ATOM classAtom;
1150 CREATESTRUCTW cs;
1151 WCHAR buffer[256];
1152
1153 if(!instance)
1154 instance=GetModuleHandleA(NULL);
1155
1156 if(exStyle & WS_EX_MDICHILD)
1157 return MDI_CreateMDIWindowW(className, windowName, style, x, y, width, height, parent, instance, (LPARAM)data);
1158
1159 /* Find the class atom */
1160
1161 if (HIWORD(className))
1162 {
1163 if (!(classAtom = GlobalFindAtomW( className )))
1164 {
1165 ERR( "bad class name %s\n", debugres_w(className) );
1166 return 0;
1167 }
1168 }
1169 else
1170 {
1171 classAtom = LOWORD(className);
1172 if (!GlobalGetAtomNameW( classAtom, buffer, sizeof(buffer)/sizeof(WCHAR) ))
1173 {
1174 ERR( "bad atom %x\n", classAtom);
1175 return 0;
1176 }
1177 className = buffer;
1178 }
1179
1180 /* Create the window */
1181
1182 cs.lpCreateParams = data;
1183 cs.hInstance = instance;
1184 cs.hMenu = menu;
1185 cs.hwndParent = parent;
1186 cs.x = x;
1187 cs.y = y;
1188 cs.cx = width;
1189 cs.cy = height;
1190 cs.style = style;
1191 cs.lpszName = windowName;
1192 cs.lpszClass = className;
1193 cs.dwExStyle = exStyle;
1194
1195 /* Note: we rely on the fact that CREATESTRUCTA and */
1196 /* CREATESTRUCTW have the same layout. */
1197 return WIN_CreateWindowEx( (CREATESTRUCTA *)&cs, classAtom, WIN_PROC_32W );
1198 }
1199
1200 /***********************************************************************
1201 * WIN_SendDestroyMsg
1202 */
1203 static void WIN_SendDestroyMsg( WND* pWnd )
1204 {
1205 if( CARET_GetHwnd() == pWnd->hwndSelf ) DestroyCaret();
1206 USER_Driver.pResetSelectionOwner( pWnd, TRUE );
1207
1208 /*
1209 * Send the WM_DESTROY to the window.
1210 */
1211 SendMessageA( pWnd->hwndSelf, WM_DESTROY, 0, 0);
1212
1213 /*
1214 * This WM_DESTROY message can trigger re-entrant calls to DestroyWindow
1215 * make sure that the window still exists when we come back.
1216 */
1217 if (IsWindow(pWnd->hwndSelf))
1218 {
1219 HWND* pWndArray = NULL;
1220 WND* pChild = NULL;
1221 int nKidCount = 0;
1222
1223 /*
1224 * Now, if the window has kids, we have to send WM_DESTROY messages
1225 * recursively to it's kids. It seems that those calls can also
1226 * trigger re-entrant calls to DestroyWindow for the kids so we must
1227 * protect against corruption of the list of siblings. We first build
1228 * a list of HWNDs representing all the kids.
1229 */
1230 pChild = WIN_LockWndPtr(pWnd->child);
1231 while( pChild )
1232 {
1233 nKidCount++;
1234 WIN_UpdateWndPtr(&pChild,pChild->next);
1235 }
1236
1237 /*
1238 * If there are no kids, we're done.
1239 */
1240 if (nKidCount==0)
1241 return;
1242
1243 pWndArray = HeapAlloc(GetProcessHeap(), 0, nKidCount*sizeof(HWND));
1244
1245 /*
1246 * Sanity check
1247 */
1248 if (pWndArray==NULL)
1249 return;
1250
1251 /*
1252 * Now, enumerate all the kids in a list, since we wait to make the SendMessage
1253 * call, our linked list of siblings should be safe.
1254 */
1255 nKidCount = 0;
1256 pChild = WIN_LockWndPtr(pWnd->child);
1257 while( pChild )
1258 {
1259 pWndArray[nKidCount] = pChild->hwndSelf;
1260 nKidCount++;
1261 WIN_UpdateWndPtr(&pChild,pChild->next);
1262 }
1263
1264 /*
1265 * Now that we have a list, go through that list again and send the destroy
1266 * message to those windows. We are using the HWND to retrieve the
1267 * WND pointer so we are effectively checking that all the kid windows are
1268 * still valid before sending the message.
1269 */
1270 while (nKidCount>0)
1271 {
1272 pChild = WIN_FindWndPtr(pWndArray[--nKidCount]);
1273
1274 if (pChild!=NULL)
1275 {
1276 WIN_SendDestroyMsg( pChild );
1277 WIN_ReleaseWndPtr(pChild);
1278 }
1279 }
1280
1281 /*
1282 * Cleanup
1283 */
1284 HeapFree(GetProcessHeap(), 0, pWndArray);
1285 }
1286 else
1287 WARN("\tdestroyed itself while in WM_DESTROY!\n");
1288 }
1289
1290
1291 /***********************************************************************
1292 * DestroyWindow16 (USER.53)
1293 */
1294 BOOL16 WINAPI DestroyWindow16( HWND16 hwnd )
1295 {
1296 return DestroyWindow(hwnd);
1297 }
1298
1299
1300 /***********************************************************************
1301 * DestroyWindow (USER32.135)
1302 */
1303 BOOL WINAPI DestroyWindow( HWND hwnd )
1304 {
1305 WND * wndPtr;
1306 BOOL retvalue;
1307 HWND h;
1308 BOOL bFocusSet = FALSE;
1309
1310 TRACE("(%04x)\n", hwnd);
1311
1312 /* Initialization */
1313
1314 if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
1315 if (wndPtr == pWndDesktop)
1316 {
1317 retvalue = FALSE; /* Can't destroy desktop */
1318 goto end;
1319 }
1320
1321 /* Look whether the focus is within the tree of windows we will
1322 * be destroying.
1323 */
1324 h = GetFocus16();
1325 while (h && (GetWindowLongA(h,GWL_STYLE) & WS_CHILD))
1326 {
1327 if (h == hwnd)
1328 {
1329 SetFocus(GetWindowLongA(hwnd,GWL_HWNDPARENT));
1330 bFocusSet = TRUE;
1331 break;
1332 }
1333 h = GetWindowLongA(h,GWL_HWNDPARENT);
1334 }
1335 /* If the focus is on the window we will destroy and it has no parent,
1336 * set the focus to 0.
1337 */
1338 if (! bFocusSet && (h == hwnd))
1339 {
1340 if (!(GetWindowLongA(h,GWL_STYLE) & WS_CHILD))
1341 SetFocus(0);
1342 }
1343
1344 /* Call hooks */
1345
1346 if( HOOK_CallHooks16( WH_CBT, HCBT_DESTROYWND, hwnd, 0L) )
1347 {
1348 retvalue = FALSE;
1349 goto end;
1350 }
1351
1352 if (!(wndPtr->dwStyle & WS_CHILD) && !wndPtr->owner)
1353 {
1354 HOOK_CallHooks16( WH_SHELL, HSHELL_WINDOWDESTROYED, hwnd, 0L );
1355 /* FIXME: clean up palette - see "Internals" p.352 */
1356 }
1357
1358 if( !QUEUE_IsExitingQueue(wndPtr->hmemTaskQ) )
1359 if( wndPtr->dwStyle & WS_CHILD && !(wndPtr->dwExStyle & WS_EX_NOPARENTNOTIFY) )
1360 {
1361 /* Notify the parent window only */
1362 SendMessageA( wndPtr->parent->hwndSelf, WM_PARENTNOTIFY,
1363 MAKEWPARAM(WM_DESTROY, wndPtr->wIDmenu), (LPARAM)hwnd );
1364 if( !IsWindow(hwnd) )
1365 {
1366 retvalue = TRUE;
1367 goto end;
1368 }
1369 }
1370
1371 USER_Driver.pResetSelectionOwner( wndPtr, FALSE ); /* before the window is unmapped */
1372
1373 /* Hide the window */
1374
1375 if (wndPtr->dwStyle & WS_VISIBLE)
1376 {
1377 SetWindowPos( hwnd, 0, 0, 0, 0, 0, SWP_HIDEWINDOW |
1378 SWP_NOACTIVATE|SWP_NOZORDER|SWP_NOMOVE|SWP_NOSIZE|
1379 ((QUEUE_IsExitingQueue(wndPtr->hmemTaskQ))?SWP_DEFERERASE:0) );
1380 if (!IsWindow(hwnd))
1381 {
1382 retvalue = TRUE;
1383 goto end;
1384 }
1385 }
1386
1387 /* Recursively destroy owned windows */
1388
1389 if( !(wndPtr->dwStyle & WS_CHILD) )
1390 {
1391 /* make sure top menu popup doesn't get destroyed */
1392 MENU_PatchResidentPopup( (HQUEUE16)0xFFFF, wndPtr );
1393
1394 for (;;)
1395 {
1396 WND *siblingPtr = WIN_LockWndPtr(wndPtr->parent->child); /* First sibling */
1397 while (siblingPtr)
1398 {
1399 if (siblingPtr->owner == wndPtr)
1400 {
1401 if (siblingPtr->hmemTaskQ == wndPtr->hmemTaskQ)
1402 break;
1403 else
1404 siblingPtr->owner = NULL;
1405 }
1406 WIN_UpdateWndPtr(&siblingPtr,siblingPtr->next);
1407 }
1408 if (siblingPtr)
1409 {
1410 DestroyWindow( siblingPtr->hwndSelf );
1411 WIN_ReleaseWndPtr(siblingPtr);
1412 }
1413 else break;
1414 }
1415
1416 if( !Options.managed || EVENT_CheckFocus() )
1417 WINPOS_ActivateOtherWindow(wndPtr);
1418
1419 if( wndPtr->owner &&
1420 wndPtr->owner->hwndLastActive == wndPtr->hwndSelf )
1421 wndPtr->owner->hwndLastActive = wndPtr->owner->hwndSelf;
1422 }
1423
1424 /* Send destroy messages */
1425
1426 WIN_SendDestroyMsg( wndPtr );
1427 if (!IsWindow(hwnd))
1428 {
1429 retvalue = TRUE;
1430 goto end;
1431 }
1432
1433 /* Unlink now so we won't bother with the children later on */
1434
1435 if( wndPtr->parent ) WIN_UnlinkWindow(hwnd);
1436
1437 /* Destroy the window storage */
1438
1439 WIN_ReleaseWndPtr(WIN_DestroyWindow( wndPtr ));
1440 retvalue = TRUE;
1441 end:
1442 WIN_ReleaseWndPtr(wndPtr);
1443 return retvalue;
1444 }
1445
1446
1447 /***********************************************************************
1448 * CloseWindow16 (USER.43)
1449 */
1450 BOOL16 WINAPI CloseWindow16( HWND16 hwnd )
1451 {
1452 return CloseWindow( hwnd );
1453 }
1454
1455
1456 /***********************************************************************
1457 * CloseWindow (USER32.56)
1458 */
1459 BOOL WINAPI CloseWindow( HWND hwnd )
1460 {
1461 WND * wndPtr = WIN_FindWndPtr( hwnd );
1462 BOOL retvalue;
1463
1464 if (!wndPtr || (wndPtr->dwStyle & WS_CHILD))
1465 {
1466 retvalue = FALSE;
1467 goto end;
1468 }
1469 ShowWindow( hwnd, SW_MINIMIZE );
1470 retvalue = TRUE;
1471 end:
1472 WIN_ReleaseWndPtr(wndPtr);
1473 return retvalue;
1474
1475 }
1476
1477
1478 /***********************************************************************
1479 * OpenIcon16 (USER.44)
1480 */
1481 BOOL16 WINAPI OpenIcon16( HWND16 hwnd )
1482 {
1483 return OpenIcon( hwnd );
1484 }
1485
1486
1487 /***********************************************************************
1488 * OpenIcon (USER32.410)
1489 */
1490 BOOL WINAPI OpenIcon( HWND hwnd )
1491 {
1492 if (!IsIconic( hwnd )) return FALSE;
1493 ShowWindow( hwnd, SW_SHOWNORMAL );
1494 return TRUE;
1495 }
1496
1497
1498 /***********************************************************************
1499 * WIN_FindWindow
1500 *
1501 * Implementation of FindWindow() and FindWindowEx().
1502 */
1503 static HWND WIN_FindWindow( HWND parent, HWND child, ATOM className,
1504 LPCWSTR title )
1505 {
1506 WND *pWnd;
1507 HWND retvalue;
1508
1509 if (child)
1510 {
1511 if (!(pWnd = WIN_FindWndPtr( child ))) return 0;
1512 if (parent)
1513 {
1514 if (!pWnd->parent || (pWnd->parent->hwndSelf != parent))
1515 {
1516 retvalue = 0;
1517 goto end;
1518 }
1519 }
1520 else if (pWnd->parent != pWndDesktop)
1521 {
1522 retvalue = 0;
1523 goto end;
1524 }
1525 WIN_UpdateWndPtr(&pWnd,pWnd->next);
1526 }
1527 else
1528 {
1529 if (!(pWnd = parent ? WIN_FindWndPtr(parent) : WIN_LockWndPtr(pWndDesktop)))
1530 {
1531 retvalue = 0;
1532 goto end;
1533 }
1534 WIN_UpdateWndPtr(&pWnd,pWnd->child);
1535 }
1536 if (!pWnd)
1537 {
1538 retvalue = 0;
1539 goto end;
1540 }
1541
1542 for ( ; pWnd ; WIN_UpdateWndPtr(&pWnd,pWnd->next))
1543 {
1544 if (className && (pWnd->class->atomName != className))
1545 continue; /* Not the right class */
1546
1547 /* Now check the title */
1548
1549 if (!title)
1550 {
1551 retvalue = pWnd->hwndSelf;
1552 goto end;
1553 }
1554 if (pWnd->text && !strcmpW( pWnd->text, title ))
1555 {
1556 retvalue = pWnd->hwndSelf;
1557 goto end;
1558 }
1559 }
1560 retvalue = 0;
1561 end:
1562 WIN_ReleaseWndPtr(pWnd);
1563 return retvalue;
1564 }
1565
1566
1567
1568 /***********************************************************************
1569 * FindWindow16 (USER.50)
1570 */
1571 HWND16 WINAPI FindWindow16( LPCSTR className, LPCSTR title )
1572 {
1573 return FindWindowA( className, title );
1574 }
1575
1576
1577 /***********************************************************************
1578 * FindWindowEx16 (USER.427)
1579 */
1580 HWND16 WINAPI FindWindowEx16( HWND16 parent, HWND16 child, LPCSTR className, LPCSTR title )
1581 {
1582 return FindWindowExA( parent, child, className, title );
1583 }
1584
1585
1586 /***********************************************************************
1587 * FindWindowA (USER32.198)
1588 */
1589 HWND WINAPI FindWindowA( LPCSTR className, LPCSTR title )
1590 {
1591 HWND ret = FindWindowExA( 0, 0, className, title );
1592 if (!ret) SetLastError (ERROR_CANNOT_FIND_WND_CLASS);
1593 return ret;
1594 }
1595
1596
1597 /***********************************************************************
1598 * FindWindowExA (USER32.199)
1599 */
1600 HWND WINAPI FindWindowExA( HWND parent, HWND child,
1601 LPCSTR className, LPCSTR title )
1602 {
1603 ATOM atom = 0;
1604 LPWSTR buffer;
1605 HWND hwnd;
1606
1607 if (className)
1608 {
1609 /* If the atom doesn't exist, then no class */
1610 /* with this name exists either. */
1611 if (!(atom = GlobalFindAtomA( className )))
1612 {
1613 SetLastError (ERROR_CANNOT_FIND_WND_CLASS);
1614 return 0;
1615 }
1616 }
1617
1618 buffer = HEAP_strdupAtoW( GetProcessHeap(), 0, title );
1619 hwnd = WIN_FindWindow( parent, child, atom, buffer );
1620 HeapFree( GetProcessHeap(), 0, buffer );
1621 return hwnd;
1622 }
1623
1624
1625 /***********************************************************************
1626 * FindWindowExW (USER32.200)
1627 */
1628 HWND WINAPI FindWindowExW( HWND parent, HWND child,
1629 LPCWSTR className, LPCWSTR title )
1630 {
1631 ATOM atom = 0;
1632
1633 if (className)
1634 {
1635 /* If the atom doesn't exist, then no class */
1636 /* with this name exists either. */
1637 if (!(atom = GlobalFindAtomW( className )))
1638 {
1639 SetLastError (ERROR_CANNOT_FIND_WND_CLASS);
1640 return 0;
1641 }
1642 }
1643 return WIN_FindWindow( parent, child, atom, title );
1644 }
1645
1646
1647 /***********************************************************************
1648 * FindWindowW (USER32.201)
1649 */
1650 HWND WINAPI FindWindowW( LPCWSTR className, LPCWSTR title )
1651 {
1652 return FindWindowExW( 0, 0, className, title );
1653 }
1654
1655
1656 /**********************************************************************
1657 * WIN_GetDesktop
1658 * returns a locked pointer
1659 */
1660 WND *WIN_GetDesktop(void)
1661 {
1662 return WIN_LockWndPtr(pWndDesktop);
1663 }
1664 /**********************************************************************
1665 * WIN_ReleaseDesktop
1666 * unlock the desktop pointer
1667 */
1668 void WIN_ReleaseDesktop(void)
1669 {
1670 WIN_ReleaseWndPtr(pWndDesktop);
1671 }
1672
1673
1674 /**********************************************************************
1675 * GetDesktopWindow16 (USER.286)
1676 */
1677 HWND16 WINAPI GetDesktopWindow16(void)
1678 {
1679 return (HWND16)pWndDesktop->hwndSelf;
1680 }
1681
1682
1683 /**********************************************************************
1684 * GetDesktopWindow (USER32.232)
1685 */
1686 HWND WINAPI GetDesktopWindow(void)
1687 {
1688 if (pWndDesktop) return pWndDesktop->hwndSelf;
1689 ERR( "You need the -desktop option when running with native USER\n" );
1690 ExitProcess(1);
1691 return 0;
1692 }
1693
1694
1695 /**********************************************************************
1696 * GetDesktopHwnd (USER.278)
1697 *
1698 * Exactly the same thing as GetDesktopWindow(), but not documented.
1699 * Don't ask me why...
1700 */
1701 HWND16 WINAPI GetDesktopHwnd16(void)
1702 {
1703 return (HWND16)pWndDesktop->hwndSelf;
1704 }
1705
1706
1707 /*******************************************************************
1708 * EnableWindow16 (USER.34)
1709 */
1710 BOOL16 WINAPI EnableWindow16( HWND16 hwnd, BOOL16 enable )
1711 {
1712 return EnableWindow( hwnd, enable );
1713 }
1714
1715
1716 /*******************************************************************
1717 * EnableWindow (USER32.172)
1718 */
1719 BOOL WINAPI EnableWindow( HWND hwnd, BOOL enable )
1720 {
1721 WND *wndPtr;
1722 BOOL retvalue;
1723
1724 TRACE("EnableWindow32: ( %x, %d )\n", hwnd, enable);
1725
1726 if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
1727 if (enable && (wndPtr->dwStyle & WS_DISABLED))
1728 {
1729 /* Enable window */
1730 wndPtr->dwStyle &= ~WS_DISABLED;
1731
1732 if( wndPtr->flags & WIN_NATIVE )
1733 wndPtr->pDriver->pSetHostAttr( wndPtr, HAK_ACCEPTFOCUS, TRUE );
1734
1735 SendMessageA( hwnd, WM_ENABLE, TRUE, 0 );
1736 retvalue = TRUE;
1737 goto end;
1738 }
1739 else if (!enable && !(wndPtr->dwStyle & WS_DISABLED))
1740 {
1741 SendMessageA( wndPtr->hwndSelf, WM_CANCELMODE, 0, 0);
1742
1743 /* Disable window */
1744 wndPtr->dwStyle |= WS_DISABLED;
1745
1746 if( wndPtr->flags & WIN_NATIVE )
1747 wndPtr->pDriver->pSetHostAttr( wndPtr, HAK_ACCEPTFOCUS, FALSE );
1748
1749 if (hwnd == GetFocus())
1750 {
1751 SetFocus( 0 ); /* A disabled window can't have the focus */
1752 }
1753 if (hwnd == GetCapture())
1754 {
1755 ReleaseCapture(); /* A disabled window can't capture the mouse */
1756 }
1757 SendMessageA( hwnd, WM_ENABLE, FALSE, 0 );
1758 retvalue = FALSE;
1759 goto end;
1760 }
1761 retvalue = ((wndPtr->dwStyle & WS_DISABLED) != 0);
1762 end:
1763 WIN_ReleaseWndPtr(wndPtr);
1764 return retvalue;
1765 }
1766
1767
1768 /***********************************************************************
1769 * IsWindowEnabled16 (USER.35)
1770 */
1771 BOOL16 WINAPI IsWindowEnabled16(HWND16 hWnd)
1772 {
1773 return IsWindowEnabled(hWnd);
1774 }
1775
1776
1777 /***********************************************************************
1778 * IsWindowEnabled (USER32.349)
1779 */
1780 BOOL WINAPI IsWindowEnabled(HWND hWnd)
1781 {
1782 WND * wndPtr;
1783 BOOL retvalue;
1784
1785 if (!(wndPtr = WIN_FindWndPtr(hWnd))) return FALSE;
1786 retvalue = !(wndPtr->dwStyle & WS_DISABLED);
1787 WIN_ReleaseWndPtr(wndPtr);
1788 return retvalue;
1789
1790 }
1791
1792
1793 /***********************************************************************
1794 * IsWindowUnicode (USER32.350)
1795 */
1796 BOOL WINAPI IsWindowUnicode( HWND hwnd )
1797 {
1798 WND * wndPtr;
1799 BOOL retvalue;
1800
1801 if (!(wndPtr = WIN_FindWndPtr(hwnd))) return FALSE;
1802 retvalue = (WINPROC_GetProcType( wndPtr->winproc ) == WIN_PROC_32W);
1803 WIN_ReleaseWndPtr(wndPtr);
1804 return retvalue;
1805 }
1806
1807
1808 /**********************************************************************
1809 * GetWindowWord16 (USER.133)
1810 */
1811 WORD WINAPI GetWindowWord16( HWND16 hwnd, INT16 offset )
1812 {
1813 return GetWindowWord( hwnd, offset );
1814 }
1815
1816
1817 /**********************************************************************
1818 * GetWindowWord (USER32.314)
1819 */
1820 WORD WINAPI GetWindowWord( HWND hwnd, INT offset )
1821 {
1822 WORD retvalue;
1823 WND * wndPtr = WIN_FindWndPtr( hwnd );
1824 if (!wndPtr) return 0;
1825 if (offset >= 0)
1826 {
1827 if (offset + sizeof(WORD) > wndPtr->class->cbWndExtra)
1828 {
1829 WARN("Invalid offset %d\n", offset );
1830 retvalue = 0;
1831 goto end;
1832 }
1833 retvalue = *(WORD *)(((char *)wndPtr->wExtra) + offset);
1834 goto end;
1835 }
1836 switch(offset)
1837 {
1838 case GWW_ID:
1839 if (HIWORD(wndPtr->wIDmenu))
1840 WARN("GWW_ID: discards high bits of 0x%08x!\n",
1841 wndPtr->wIDmenu);
1842 retvalue = (WORD)wndPtr->wIDmenu;
1843 goto end;
1844 case GWW_HWNDPARENT:
1845 retvalue = GetParent(hwnd);
1846 goto end;
1847 case GWW_HINSTANCE:
1848 if (HIWORD(wndPtr->hInstance))
1849 WARN("GWW_HINSTANCE: discards high bits of 0x%08x!\n",
1850 wndPtr->hInstance);
1851 retvalue = (WORD)wndPtr->hInstance;
1852 goto end;
1853 default:
1854 WARN("Invalid offset %d\n", offset );
1855 retvalue = 0;
1856 goto end;
1857 }
1858 end:
1859 WIN_ReleaseWndPtr(wndPtr);
1860 return retvalue;
1861 }
1862
1863 /**********************************************************************
1864 * SetWindowWord16 (USER.134)
1865 */
1866 WORD WINAPI SetWindowWord16( HWND16 hwnd, INT16 offset, WORD newval )
1867 {
1868 return SetWindowWord( hwnd, offset, newval );
1869 }
1870
1871
1872 /**********************************************************************
1873 * SetWindowWord (USER32.524)
1874 */
1875 WORD WINAPI SetWindowWord( HWND hwnd, INT offset, WORD newval )
1876 {
1877 WORD *ptr, retval;
1878 WND * wndPtr = WIN_FindWndPtr( hwnd );
1879 if (!wndPtr) return 0;
1880 if (offset >= 0)
1881 {
1882 if (offset + sizeof(WORD) > wndPtr->class->cbWndExtra)
1883 {
1884 WARN("Invalid offset %d\n", offset );
1885 retval = 0;
1886 goto end;
1887 }
1888 ptr = (WORD *)(((char *)wndPtr->wExtra) + offset);
1889 }
1890 else switch(offset)
1891 {
1892 case GWW_ID: ptr = (WORD *)&wndPtr->wIDmenu; break;
1893 case GWW_HINSTANCE: ptr = (WORD *)&wndPtr->hInstance; break;
1894 case GWW_HWNDPARENT: retval = SetParent( hwnd, newval );
1895 goto end;
1896 default:
1897 WARN("Invalid offset %d\n", offset );
1898 retval = 0;
1899 goto end;
1900 }
1901 retval = *ptr;
1902 *ptr = newval;
1903 end:
1904 WIN_ReleaseWndPtr(wndPtr);
1905 return retval;
1906 }
1907
1908
1909 /**********************************************************************
1910 * WIN_GetWindowLong
1911 *
1912 * Helper function for GetWindowLong().
1913 */
1914 static LONG WIN_GetWindowLong( HWND hwnd, INT offset, WINDOWPROCTYPE type )
1915 {
1916 LONG retvalue;
1917 WND * wndPtr = WIN_FindWndPtr( hwnd );
1918 if (!wndPtr) return 0;
1919 if (offset >= 0)
1920 {
1921 if (offset + sizeof(LONG) > wndPtr->class->cbWndExtra)
1922 {
1923 WARN("Invalid offset %d\n", offset );
1924 retvalue = 0;
1925 goto end;
1926 }
1927 retvalue = *(LONG *)(((char *)wndPtr->wExtra) + offset);
1928 /* Special case for dialog window procedure */
1929 if ((offset == DWL_DLGPROC) && (wndPtr->flags & WIN_ISDIALOG))
1930 {
1931 retvalue = (LONG)WINPROC_GetProc( (HWINDOWPROC)retvalue, type );
1932 goto end;
1933 }
1934 goto end;
1935 }
1936 switch(offset)
1937 {
1938 case GWL_USERDATA: retvalue = wndPtr->userdata;
1939 goto end;
1940 case GWL_STYLE: retvalue = wndPtr->dwStyle;
1941 goto end;
1942 case GWL_EXSTYLE: retvalue = wndPtr->dwExStyle;
1943 goto end;
1944 case GWL_ID: retvalue = (LONG)wndPtr->wIDmenu;
1945 goto end;
1946 case GWL_WNDPROC: retvalue = (LONG)WINPROC_GetProc( wndPtr->winproc,
1947 type );
1948 goto end;
1949 case GWL_HWNDPARENT: retvalue = GetParent(hwnd);
1950 goto end;
1951 case GWL_HINSTANCE: retvalue = wndPtr->hInstance;
1952 goto end;
1953 default:
1954 WARN("Unknown offset %d\n", offset );
1955 }
1956 retvalue = 0;
1957 end:
1958 WIN_ReleaseWndPtr(wndPtr);
1959 return retvalue;
1960 }
1961
1962
1963 /**********************************************************************
1964 * WIN_SetWindowLong
1965 *
1966 * Helper function for SetWindowLong().
1967 *
1968 * 0 is the failure code. However, in the case of failure SetLastError
1969 * must be set to distinguish between a 0 return value and a failure.
1970 *
1971 * FIXME: The error values for SetLastError may not be right. Can
1972 * someone check with the real thing?
1973 */
1974 static LONG WIN_SetWindowLong( HWND hwnd, INT offset, LONG newval,
1975 WINDOWPROCTYPE type )
1976 {
1977 LONG *ptr, retval;
1978 WND * wndPtr = WIN_FindWndPtr( hwnd );
1979 STYLESTRUCT style;
1980
1981 TRACE("%x=%p %x %lx %x\n",hwnd, wndPtr, offset, newval, type);
1982
1983 if (!wndPtr)
1984 {
1985 /* Is this the right error? */
1986 SetLastError( ERROR_INVALID_WINDOW_HANDLE );
1987 return 0;
1988 }
1989
1990 if (offset >= 0)
1991 {
1992 if (offset + sizeof(LONG) > wndPtr->class->cbWndExtra)
1993 {
1994 WARN("Invalid offset %d\n", offset );
1995
1996 /* Is this the right error? */
1997 SetLastError( ERROR_OUTOFMEMORY );
1998
1999 retval = 0;
2000 goto end;
2001 }
2002 ptr = (LONG *)(((char *)wndPtr->wExtra) + offset);
2003 /* Special case for dialog window procedure */
2004 if ((offset == DWL_DLGPROC) && (wndPtr->flags & WIN_ISDIALOG))
2005 {
2006 retval = (LONG)WINPROC_GetProc( (HWINDOWPROC)*ptr, type );
2007 WINPROC_SetProc( (HWINDOWPROC *)ptr, (WNDPROC16)newval,
2008 type, WIN_PROC_WINDOW );
2009 goto end;
2010 }
2011 }
2012 else switch(offset)
2013 {
2014 case GWL_ID:
2015 ptr = (DWORD*)&wndPtr->wIDmenu;
2016 break;
2017 case GWL_HINSTANCE:
2018 retval = SetWindowWord( hwnd, offset, newval );
2019 goto end;
2020 case GWL_WNDPROC:
2021 retval = (LONG)WINPROC_GetProc( wndPtr->winproc, type );
2022 WINPROC_SetProc( &wndPtr->winproc, (WNDPROC16)newval,
2023 type, WIN_PROC_WINDOW );
2024 goto end;
2025 case GWL_STYLE:
2026 style.styleOld = wndPtr->dwStyle;
2027 newval &= ~(WS_CHILD); /* this bit can't be changed this way */
2028 style.styleNew = newval | (style.styleOld & (WS_CHILD));
2029
2030 if (wndPtr->flags & WIN_ISWIN32)
2031 SendMessageA(hwnd,WM_STYLECHANGING,GWL_STYLE,(LPARAM)&style);
2032 wndPtr->dwStyle = style.styleNew;
2033 if (wndPtr->flags & WIN_ISWIN32)
2034 SendMessageA(hwnd,WM_STYLECHANGED,GWL_STYLE,(LPARAM)&style);
2035 retval = style.styleOld;
2036 goto end;
2037
2038 case GWL_USERDATA:
2039 ptr = &wndPtr->userdata;
2040 break;
2041 case GWL_EXSTYLE:
2042 style.styleOld = wndPtr->dwExStyle;
2043 style.styleNew = newval;
2044 if (wndPtr->flags & WIN_ISWIN32)
2045 SendMessageA(hwnd,WM_STYLECHANGING,GWL_EXSTYLE,(LPARAM)&style);
2046 wndPtr->dwExStyle = newval;
2047 if (wndPtr->flags & WIN_ISWIN32)
2048 SendMessageA(hwnd,WM_STYLECHANGED,GWL_EXSTYLE,(LPARAM)&style);
2049 retval = style.styleOld;
2050 goto end;
2051
2052 default:
2053 WARN("Invalid offset %d\n", offset );
2054
2055 /* Don't think this is right error but it should do */
2056 SetLastError( ERROR_OUTOFMEMORY );
2057
2058 retval = 0;
2059 goto end;
2060 }
2061 retval = *ptr;
2062 *ptr = newval;
2063 end:
2064 WIN_ReleaseWndPtr(wndPtr);
2065 return retval;
2066 }
2067
2068
2069 /**********************************************************************
2070 * GetWindowLong16 (USER.135)
2071 */
2072 LONG WINAPI GetWindowLong16( HWND16 hwnd, INT16 offset )
2073 {
2074 return WIN_GetWindowLong( (HWND)hwnd, offset, WIN_PROC_16 );
2075 }
2076
2077
2078 /**********************************************************************
2079 * GetWindowLongA (USER32.305)
2080 */
2081 LONG WINAPI GetWindowLongA( HWND hwnd, INT offset )
2082 {
2083 return WIN_GetWindowLong( hwnd, offset, WIN_PROC_32A );
2084 }
2085
2086
2087 /**********************************************************************
2088 * GetWindowLongW (USER32.306)
2089 */
2090 LONG WINAPI GetWindowLongW( HWND hwnd, INT offset )
2091 {
2092 return WIN_GetWindowLong( hwnd, offset, WIN_PROC_32W );
2093 }
2094
2095
2096 /**********************************************************************
2097 * SetWindowLong16 (USER.136)
2098 */
2099 LONG WINAPI SetWindowLong16( HWND16 hwnd, INT16 offset, LONG newval )
2100 {
2101 return WIN_SetWindowLong( hwnd, offset, newval, WIN_PROC_16 );
2102 }
2103
2104
2105 /**********************************************************************
2106 * SetWindowLongA (USER32.517)
2107 */
2108 LONG WINAPI SetWindowLongA( HWND hwnd, INT offset, LONG newval )
2109 {
2110 return WIN_SetWindowLong( hwnd, offset, newval, WIN_PROC_32A );
2111 }
2112
2113
2114 /**********************************************************************
2115 * SetWindowLongW (USER32.518) Set window attribute
2116 *
2117 * SetWindowLong() alters one of a window's attributes or sets a 32-bit (long)
2118 * value in a window's extra memory.
2119 *
2120 * The _hwnd_ parameter specifies the window. is the handle to a
2121 * window that has extra memory. The _newval_ parameter contains the
2122 * new attribute or extra memory value. If positive, the _offset_
2123 * parameter is the byte-addressed location in the window's extra
2124 * memory to set. If negative, _offset_ specifies the window
2125 * attribute to set, and should be one of the following values:
2126 *
2127 * GWL_EXSTYLE The window's extended window style
2128 *
2129 * GWL_STYLE The window's window style.
2130 *
2131 * GWL_WNDPROC Pointer to the window's window procedure.
2132 *
2133 * GWL_HINSTANCE The window's pplication instance handle.
2134 *
2135 * GWL_ID The window's identifier.
2136 *
2137 * GWL_USERDATA The window's user-specified data.
2138 *
2139 * If the window is a dialog box, the _offset_ parameter can be one of
2140 * the following values:
2141 *
2142 * DWL_DLGPROC The address of the window's dialog box procedure.
2143 *
2144 * DWL_MSGRESULT The return value of a message
2145 * that the dialog box procedure processed.
2146 *
2147 * DWL_USER Application specific information.
2148 *
2149 * RETURNS
2150 *
2151 * If successful, returns the previous value located at _offset_. Otherwise,
2152 * returns 0.
2153 *
2154 * NOTES
2155 *
2156 * Extra memory for a window class is specified by a nonzero cbWndExtra
2157 * parameter of the WNDCLASS structure passed to RegisterClass() at the
2158 * time of class creation.
2159 *
2160 * Using GWL_WNDPROC to set a new window procedure effectively creates
2161 * a window subclass. Use CallWindowProc() in the new windows procedure
2162 * to pass messages to the superclass's window procedure.
2163 *
2164 * The user data is reserved for use by the application which created
2165 * the window.
2166 *
2167 * Do not use GWL_STYLE to change the window's WS_DISABLE style;
2168 * instead, call the EnableWindow() function to change the window's
2169 * disabled state.
2170 *
2171 * Do not use GWL_HWNDPARENT to reset the window's parent, use
2172 * SetParent() instead.
2173 *
2174 * Win95:
2175 * When offset is GWL_STYLE and the calling app's ver is 4.0,
2176 * it sends WM_STYLECHANGING before changing the settings
2177 * and WM_STYLECHANGED afterwards.
2178 * App ver 4.0 can't use SetWindowLong to change WS_EX_TOPMOST.
2179 *
2180 * BUGS
2181 *
2182 * GWL_STYLE does not dispatch WM_STYLE... messages.
2183 *
2184 * CONFORMANCE
2185 *
2186 * ECMA-234, Win32
2187 *
2188 */
2189 LONG WINAPI SetWindowLongW(
2190 HWND hwnd, /* [in] window to alter */
2191 INT offset, /* [in] offset, in bytes, of location to alter */
2192 LONG newval /* [in] new value of location */
2193 ) {
2194 return WIN_SetWindowLong( hwnd, offset, newval, WIN_PROC_32W );
2195 }
2196
2197
2198 /*******************************************************************
2199 * GetWindowText16 (USER.36)
2200 */
2201 INT16 WINAPI GetWindowText16( HWND16 hwnd, SEGPTR lpString, INT16 nMaxCount )
2202 {
2203 return (INT16)SendMessage16(hwnd, WM_GETTEXT, nMaxCount, (LPARAM)lpString);
2204 }
2205
2206
2207 /*******************************************************************
2208 * GetWindowTextA (USER32.309)
2209 */
2210 INT WINAPI GetWindowTextA( HWND hwnd, LPSTR lpString, INT nMaxCount )
2211 {
2212 return (INT)SendMessageA( hwnd, WM_GETTEXT, nMaxCount,
2213 (LPARAM)lpString );
2214 }
2215
2216 /*******************************************************************
2217 * InternalGetWindowText (USER32.326)
2218 */
2219 INT WINAPI InternalGetWindowText(HWND hwnd,LPWSTR lpString,INT nMaxCount )
2220 {
2221 FIXME("(0x%08x,%p,0x%x),stub!\n",hwnd,lpString,nMaxCount);
2222 return GetWindowTextW(hwnd,lpString,nMaxCount);
2223 }
2224
2225
2226 /*******************************************************************
2227 * GetWindowTextW (USER32.312)
2228 */
2229 INT WINAPI GetWindowTextW( HWND hwnd, LPWSTR lpString, INT nMaxCount )
2230 {
2231 return (INT)SendMessageW( hwnd, WM_GETTEXT, nMaxCount,
2232 (LPARAM)lpString );
2233 }
2234
2235
2236 /*******************************************************************
2237 * SetWindowText16 (USER.37)
2238 */
2239 BOOL16 WINAPI SetWindowText16( HWND16 hwnd, SEGPTR lpString )
2240 {
2241 return (BOOL16)SendMessage16( hwnd, WM_SETTEXT, 0, (LPARAM)lpString );
2242 }
2243
2244
2245 /*******************************************************************
2246 * SetWindowTextA (USER32.521)
2247 */
2248 BOOL WINAPI SetWindowTextA( HWND hwnd, LPCSTR lpString )
2249 {
2250 return (BOOL)SendMessageA( hwnd, WM_SETTEXT, 0, (LPARAM)lpString );
2251 }
2252
2253
2254 /*******************************************************************
2255 * SetWindowTextW (USER32.523)
2256 */
2257 BOOL WINAPI SetWindowTextW( HWND hwnd, LPCWSTR lpString )
2258 {
2259 return (BOOL)SendMessageW( hwnd, WM_SETTEXT, 0, (LPARAM)lpString );
2260 }
2261
2262
2263 /*******************************************************************
2264 * GetWindowTextLength16 (USER.38)
2265 */
2266 INT16 WINAPI GetWindowTextLength16( HWND16 hwnd )
2267 {
2268 return (INT16)SendMessage16( hwnd, WM_GETTEXTLENGTH, 0, 0 );
2269 }
2270
2271
2272 /*******************************************************************
2273 * GetWindowTextLengthA (USER32.310)
2274 */
2275 INT WINAPI GetWindowTextLengthA( HWND hwnd )
2276 {
2277 return SendMessageA( hwnd, WM_GETTEXTLENGTH, 0, 0 );
2278 }
2279
2280 /*******************************************************************
2281 * GetWindowTextLengthW (USER32.311)
2282 */
2283 INT WINAPI GetWindowTextLengthW( HWND hwnd )
2284 {
2285 return SendMessageW( hwnd, WM_GETTEXTLENGTH, 0, 0 );
2286 }
2287
2288
2289 /*******************************************************************
2290 * IsWindow16 (USER.47)
2291 */
2292 BOOL16 WINAPI IsWindow16( HWND16 hwnd )
2293 {
2294 CURRENT_STACK16->es = USER_HeapSel;
2295 return IsWindow( hwnd );
2296 }
2297
2298
2299 /*******************************************************************
2300 * IsWindow (USER32.348)
2301 */
2302 BOOL WINAPI IsWindow( HWND hwnd )
2303 {
2304 WND * wndPtr;
2305 BOOL retvalue;
2306
2307 if(!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
2308 retvalue = (wndPtr->dwMagic == WND_MAGIC);
2309 WIN_ReleaseWndPtr(wndPtr);
2310 return retvalue;
2311
2312 }
2313
2314
2315 /*****************************************************************
2316 * GetParent16 (USER.46)
2317 */
2318 HWND16 WINAPI GetParent16( HWND16 hwnd )
2319 {
2320 return (HWND16)GetParent( hwnd );
2321 }
2322
2323
2324 /*****************************************************************
2325 * GetParent (USER32.278)
2326 */
2327 HWND WINAPI GetParent( HWND hwnd )
2328 {
2329 WND *wndPtr;
2330 HWND retvalue = 0;
2331
2332 if(!(wndPtr = WIN_FindWndPtr(hwnd))) return 0;
2333 if ((!(wndPtr->dwStyle & (WS_POPUP|WS_CHILD))))
2334 goto end;
2335
2336 WIN_UpdateWndPtr(&wndPtr,((wndPtr->dwStyle & WS_CHILD) ? wndPtr->parent : wndPtr->owner));
2337 if (wndPtr)
2338 retvalue = wndPtr->hwndSelf;
2339
2340 end:
2341 WIN_ReleaseWndPtr(wndPtr);
2342 return retvalue;
2343
2344 }
2345
2346 /*****************************************************************
2347 * WIN_GetTopParent
2348 *
2349 * Get the top-level parent for a child window.
2350 * returns a locked pointer
2351 */
2352 WND* WIN_GetTopParentPtr( WND* pWnd )
2353 {
2354 WND *tmpWnd = WIN_LockWndPtr(pWnd);
2355
2356 while( tmpWnd && (tmpWnd->dwStyle & WS_CHILD))
2357 {
2358 WIN_UpdateWndPtr(&tmpWnd,tmpWnd->parent);
2359 }
2360 return tmpWnd;
2361 }
2362
2363 /*****************************************************************
2364 * WIN_GetTopParent
2365 *
2366 * Get the top-level parent for a child window.
2367 */
2368 HWND WIN_GetTopParent( HWND hwnd )
2369 {
2370 HWND retvalue;
2371 WND *tmpPtr = WIN_FindWndPtr(hwnd);
2372 WND *wndPtr = WIN_GetTopParentPtr (tmpPtr );
2373
2374 retvalue = wndPtr ? wndPtr->hwndSelf : 0;
2375 WIN_ReleaseWndPtr(tmpPtr);
2376 WIN_ReleaseWndPtr(wndPtr);
2377 return retvalue;
2378 }
2379
2380
2381 /*****************************************************************
2382 * SetParent16 (USER.233)
2383 */
2384 HWND16 WINAPI SetParent16( HWND16 hwndChild, HWND16 hwndNewParent )
2385 {
2386 return SetParent( hwndChild, hwndNewParent );
2387 }
2388
2389
2390 /*****************************************************************
2391 * SetParent (USER32.495)
2392 */
2393 HWND WINAPI SetParent( HWND hwndChild, HWND hwndNewParent )
2394 {
2395 WND *wndPtr;
2396 DWORD dwStyle;
2397 WND *pWndNewParent;
2398 WND *pWndOldParent;
2399 HWND retvalue;
2400
2401
2402 if(!(wndPtr = WIN_FindWndPtr(hwndChild))) return 0;
2403
2404 dwStyle = wndPtr->dwStyle;
2405
2406 pWndNewParent = hwndNewParent ? WIN_FindWndPtr(hwndNewParent)
2407 : WIN_LockWndPtr(pWndDesktop);
2408
2409 /* Windows hides the window first, then shows it again
2410 * including the WM_SHOWWINDOW messages and all */
2411 if (dwStyle & WS_VISIBLE)
2412 ShowWindow( hwndChild, SW_HIDE );
2413
2414 pWndOldParent = WIN_LockWndPtr((*wndPtr->pDriver->pSetParent)(wndPtr, pWndNewParent));
2415
2416 /* SetParent additionally needs to make hwndChild the topmost window
2417 in the x-order and send the expected WM_WINDOWPOSCHANGING and
2418 WM_WINDOWPOSCHANGED notification messages.
2419 */
2420 SetWindowPos( hwndChild, HWND_TOPMOST, 0, 0, 0, 0,
2421 SWP_NOACTIVATE|SWP_NOMOVE|SWP_NOSIZE|((dwStyle & WS_VISIBLE)?SWP_SHOWWINDOW:0));
2422 /* FIXME: a WM_MOVE is also generated (in the DefWindowProc handler
2423 * for WM_WINDOWPOSCHANGED) in Windows, should probably remove SWP_NOMOVE */
2424
2425 retvalue = pWndOldParent?pWndOldParent->hwndSelf:0;
2426
2427 WIN_ReleaseWndPtr(pWndOldParent);
2428 WIN_ReleaseWndPtr(pWndNewParent);
2429 WIN_ReleaseWndPtr(wndPtr);
2430
2431 return retvalue;
2432
2433 }
2434
2435 /*******************************************************************
2436 * IsChild16 (USER.48)
2437 */
2438 BOOL16 WINAPI IsChild16( HWND16 parent, HWND16 child )
2439 {
2440 return IsChild(parent,child);
2441 }
2442
2443
2444 /*******************************************************************
2445 * IsChild (USER32.339)
2446 */
2447 BOOL WINAPI IsChild( HWND parent, HWND child )
2448 {
2449 WND * wndPtr = WIN_FindWndPtr( child );
2450 while (wndPtr && (wndPtr->dwStyle & WS_CHILD))
2451 {
2452 WIN_UpdateWndPtr(&wndPtr,wndPtr->parent);
2453 if (wndPtr->hwndSelf == parent)
2454 {
2455 WIN_ReleaseWndPtr(wndPtr);
2456 return TRUE;
2457 }
2458 }
2459 WIN_ReleaseWndPtr(wndPtr);
2460 return FALSE;
2461 }
2462
2463
2464 /***********************************************************************
2465 * IsWindowVisible16 (USER.49)
2466 */
2467 BOOL16 WINAPI IsWindowVisible16( HWND16 hwnd )
2468 {
2469 return IsWindowVisible(hwnd);
2470 }
2471
2472
2473 /***********************************************************************
2474 * IsWindowVisible (USER32.351)
2475 */
2476 BOOL WINAPI IsWindowVisible( HWND hwnd )
2477 {
2478 BOOL retval;
2479 WND *wndPtr = WIN_FindWndPtr( hwnd );
2480 while (wndPtr && (wndPtr->dwStyle & WS_CHILD))
2481 {
2482 if (!(wndPtr->dwStyle & WS_VISIBLE))
2483 {
2484 WIN_ReleaseWndPtr(wndPtr);
2485 return FALSE;
2486 }
2487 WIN_UpdateWndPtr(&wndPtr,wndPtr->parent);
2488 }
2489 retval = (wndPtr && (wndPtr->dwStyle & WS_VISIBLE));
2490 WIN_ReleaseWndPtr(wndPtr);
2491 return retval;
2492
2493 }
2494
2495
2496 /***********************************************************************
2497 * WIN_IsWindowDrawable
2498 *
2499 * hwnd is drawable when it is visible, all parents are not
2500 * minimized, and it is itself not minimized unless we are
2501 * trying to draw its default class icon.
2502 */
2503 BOOL WIN_IsWindowDrawable( WND* wnd, BOOL icon )
2504 {
2505 if( (wnd->dwStyle & WS_MINIMIZE &&
2506 icon && wnd->class->hIcon) ||
2507 !(wnd->dwStyle & WS_VISIBLE) ) return FALSE;
2508 for(wnd = wnd->parent; wnd; wnd = wnd->parent)
2509 if( wnd->dwStyle & WS_MINIMIZE ||
2510 !(wnd->dwStyle & WS_VISIBLE) ) break;
2511 return (wnd == NULL);
2512 }
2513
2514
2515 /*******************************************************************
2516 * GetTopWindow16 (USER.229)
2517 */
2518 HWND16 WINAPI GetTopWindow16( HWND16 hwnd )
2519 {
2520 return GetTopWindow(hwnd);
2521 }
2522
2523
2524 /*******************************************************************
2525 * GetTopWindow (USER.229)
2526 */
2527 HWND WINAPI GetTopWindow( HWND hwnd )
2528 {
2529 HWND retval = 0;
2530 WND * wndPtr = (hwnd) ?
2531 WIN_FindWndPtr( hwnd ) : WIN_GetDesktop();
2532
2533 if (wndPtr && wndPtr->child)
2534 retval = wndPtr->child->hwndSelf;
2535
2536 WIN_ReleaseWndPtr(wndPtr);
2537 return retval;
2538 }
2539
2540
2541 /*******************************************************************
2542 * GetWindow16 (USER.262)
2543 */
2544 HWND16 WINAPI GetWindow16( HWND16 hwnd, WORD rel )
2545 {
2546 return GetWindow( hwnd,rel );
2547 }
2548
2549
2550 /*******************************************************************
2551 * GetWindow (USER32.302)
2552 */
2553 HWND WINAPI GetWindow( HWND hwnd, WORD rel )
2554 {
2555 HWND retval;
2556
2557 WND * wndPtr = WIN_FindWndPtr( hwnd );
2558 if (!wndPtr) return 0;
2559 switch(rel)
2560 {
2561 case GW_HWNDFIRST:
2562 retval = wndPtr->parent ? wndPtr->parent->child->hwndSelf : 0;
2563 goto end;
2564
2565 case GW_HWNDLAST:
2566 if (!wndPtr->parent)
2567 {
2568 retval = 0; /* Desktop window */
2569 goto end;
2570 }
2571 while (wndPtr->next)
2572 {
2573 WIN_UpdateWndPtr(&wndPtr,wndPtr->next);
2574 }
2575 retval = wndPtr->hwndSelf;
2576 goto end;
2577
2578 case GW_HWNDNEXT:
2579 retval = wndPtr->next ? wndPtr->next->hwndSelf : 0;
2580 goto end;
2581
2582 case GW_HWNDPREV:
2583 if (!wndPtr->parent)
2584 {
2585 retval = 0; /* Desktop window */
2586 goto end;
2587 }
2588 WIN_UpdateWndPtr(&wndPtr,wndPtr->parent->child); /* First sibling */
2589 if (wndPtr->hwndSelf == hwnd)
2590 {
2591 retval = 0; /* First in list */
2592 goto end;
2593 }
2594 while (wndPtr->next)
2595 {
2596 if (wndPtr->next->hwndSelf == hwnd)
2597 {
2598 retval = wndPtr->hwndSelf;
2599 goto end;
2600 }
2601 WIN_UpdateWndPtr(&wndPtr,wndPtr->next);
2602 }
2603 retval = 0;
2604 goto end;
2605
2606 case GW_OWNER:
2607 retval = wndPtr->owner ? wndPtr->owner->hwndSelf : 0;
2608 goto end;
2609
2610 case GW_CHILD:
2611 retval = wndPtr->child ? wndPtr->child->hwndSelf : 0;
2612 goto end;
2613 }
2614 retval = 0;
2615 end:
2616 WIN_ReleaseWndPtr(wndPtr);
2617 return retval;
2618 }
2619
2620
2621 /*******************************************************************
2622 * GetNextWindow16 (USER.230)
2623 */
2624 HWND16 WINAPI GetNextWindow16( HWND16 hwnd, WORD flag )
2625 {
2626 if ((flag != GW_HWNDNEXT) && (flag != GW_HWNDPREV)) return 0;
2627 return GetWindow16( hwnd, flag );
2628 }
2629
2630 /***********************************************************************
2631 * WIN_InternalShowOwnedPopups
2632 *
2633 * Internal version of ShowOwnedPopups; Wine functions should use this
2634 * to avoid interfering with application calls to ShowOwnedPopups
2635 * and to make sure the application can't prevent showing/hiding.
2636 *
2637 * Set unmanagedOnly to TRUE to show/hide unmanaged windows only.
2638 *
2639 */
2640
2641 BOOL WIN_InternalShowOwnedPopups( HWND owner, BOOL fShow, BOOL unmanagedOnly )
2642 {
2643 INT totalChild=0, count=0;
2644
2645 WND **pWnd = WIN_BuildWinArray(WIN_GetDesktop(), 0, &totalChild);
2646
2647 if (!pWnd) return TRUE;
2648
2649 /*
2650 * Show windows Lowest first, Highest last to preserve Z-Order
2651 */
2652 for (count = totalChild-1 ; count >=0; count--)
2653 {
2654 if (pWnd[count]->owner && (pWnd[count]->owner->hwndSelf == owner) && (pWnd[count]->dwStyle & WS_POPUP))
2655 {
2656 if (fShow)
2657 {
2658 /* check in window was flagged for showing in previous WIN_InternalShowOwnedPopups call */
2659 if (pWnd[count]->flags & WIN_NEEDS_INTERNALSOP)
2660 {
2661 /*
2662 * Call ShowWindow directly because an application can intercept WM_SHOWWINDOW messages
2663 */
2664 ShowWindow(pWnd[count]->hwndSelf,SW_SHOW);
2665 pWnd[count]->flags &= ~WIN_NEEDS_INTERNALSOP; /* remove the flag */
2666 }
2667 }
2668 else
2669 {
2670 if ( IsWindowVisible(pWnd[count]->hwndSelf) && /* hide only if window is visible */
2671 !( pWnd[count]->flags & WIN_NEEDS_INTERNALSOP ) && /* don't hide if previous call already did it */
2672 !( unmanagedOnly && (pWnd[count]->dwExStyle & WS_EX_MANAGED) ) ) /* don't hide managed windows if unmanagedOnly is TRUE */
2673 {
2674 /*
2675 * Call ShowWindow directly because an application can intercept WM_SHOWWINDOW messages
2676 */
2677 ShowWindow(pWnd[count]->hwndSelf,SW_HIDE);
2678 /* flag the window for showing on next WIN_InternalShowOwnedPopups call */
2679 pWnd[count]->flags |= WIN_NEEDS_INTERNALSOP;
2680 }
2681 }
2682 }
2683 }
2684 WIN_ReleaseDesktop();
2685 WIN_ReleaseWinArray(pWnd);
2686
2687 return TRUE;
2688 }
2689
2690 /*******************************************************************
2691 * ShowOwnedPopups16 (USER.265)
2692 */
2693 void WINAPI ShowOwnedPopups16( HWND16 owner, BOOL16 fShow )
2694 {
2695 ShowOwnedPopups( owner, fShow );
2696 }
2697
2698
2699 /*******************************************************************
2700 * ShowOwnedPopups (USER32.531)
2701 */
2702 BOOL WINAPI ShowOwnedPopups( HWND owner, BOOL fShow )
2703 {
2704 UINT totalChild=0, count=0;
2705
2706 WND **pWnd = WIN_BuildWinArray(WIN_GetDesktop(), 0, &totalChild);
2707
2708 if (!pWnd) return TRUE;
2709
2710 for (; count < totalChild; count++)
2711 {
2712 if (pWnd[count]->owner && (pWnd[count]->owner->hwndSelf == owner) && (pWnd[count]->dwStyle & WS_POPUP))
2713 {
2714 if (fShow)
2715 {
2716 if (pWnd[count]->flags & WIN_NEEDS_SHOW_OWNEDPOPUP)
2717 {
2718 /*
2719 * In Windows, ShowOwnedPopups(TRUE) generates WM_SHOWWINDOW messages with SW_PARENTOPENING,
2720 * regardless of the state of the owner
2721 */
2722 SendMessageA(pWnd[count]->hwndSelf, WM_SHOWWINDOW, SW_SHOW, SW_PARENTOPENING);
2723 pWnd[count]->flags &= ~WIN_NEEDS_SHOW_OWNEDPOPUP;
2724 }
2725 }
2726 else
2727 {
2728 if (IsWindowVisible(pWnd[count]->hwndSelf))
2729 {
2730 /*
2731 * In Windows, ShowOwnedPopups(FALSE) generates WM_SHOWWINDOW messages with SW_PARENTCLOSING,
2732 * regardless of the state of the owner
2733 */
2734 SendMessageA(pWnd[count]->hwndSelf, WM_SHOWWINDOW, SW_HIDE, SW_PARENTCLOSING);
2735 pWnd[count]->flags |= WIN_NEEDS_SHOW_OWNEDPOPUP;
2736 }
2737 }
2738 }
2739 }
2740
2741 WIN_ReleaseDesktop();
2742 WIN_ReleaseWinArray(pWnd);
2743 return TRUE;
2744 }
2745
2746
2747 /*******************************************************************
2748 * GetLastActivePopup16 (USER.287)
2749 */
2750 HWND16 WINAPI GetLastActivePopup16( HWND16 hwnd )
2751 {
2752 return GetLastActivePopup( hwnd );
2753 }
2754
2755 /*******************************************************************
2756 * GetLastActivePopup (USER32.256)
2757 */
2758 HWND WINAPI GetLastActivePopup( HWND hwnd )
2759 {
2760 HWND retval;
2761 WND *wndPtr =WIN_FindWndPtr(hwnd);
2762 if (!wndPtr) return hwnd;
2763 retval = wndPtr->hwndLastActive;
2764 WIN_ReleaseWndPtr(wndPtr);
2765 return retval;
2766 }
2767
2768
2769 /*******************************************************************
2770 * WIN_BuildWinArray
2771 *
2772 * Build an array of pointers to the children of a given window.
2773 * The array must be freed with WIN_ReleaseWinArray. Return NULL
2774 * when no windows are found.
2775 */
2776 WND **WIN_BuildWinArray( WND *wndPtr, UINT bwaFlags, UINT* pTotal )
2777 {
2778 /* Future: this function will lock all windows associated with this array */
2779
2780 WND **list, **ppWnd;
2781 WND *pWnd;
2782 UINT count = 0, skipOwned, skipHidden;
2783 DWORD skipFlags;
2784
2785 skipHidden = bwaFlags & BWA_SKIPHIDDEN;
2786 skipOwned = bwaFlags & BWA_SKIPOWNED;
2787 skipFlags = (bwaFlags & BWA_SKIPDISABLED) ? WS_DISABLED : 0;
2788 if( bwaFlags & BWA_SKIPICONIC ) skipFlags |= WS_MINIMIZE;
2789
2790 /* First count the windows */
2791
2792 if (!wndPtr)
2793 wndPtr = WIN_GetDesktop();
2794
2795 pWnd = WIN_LockWndPtr(wndPtr->child);
2796 while (pWnd)
2797 {
2798 if( !(pWnd->dwStyle & skipFlags) && !(skipOwned && pWnd->owner) &&
2799 (!skipHidden || (pWnd->dwStyle & WS_VISIBLE)) )
2800 count++;
2801 WIN_UpdateWndPtr(&pWnd,pWnd->next);
2802 }
2803
2804 if( count )
2805 {
2806 /* Now build the list of all windows */
2807
2808 if ((list = (WND **)HeapAlloc( GetProcessHeap(), 0, sizeof(WND *) * (count + 1))))
2809 {
2810 for (pWnd = WIN_LockWndPtr(wndPtr->child), ppWnd = list, count = 0; pWnd; WIN_UpdateWndPtr(&pWnd,pWnd->next))
2811 {
2812 if( (pWnd->dwStyle & skipFlags) || (skipOwned && pWnd->owner) );
2813 else if( !skipHidden || pWnd->dwStyle & WS_VISIBLE )
2814 {
2815 *ppWnd++ = pWnd;
2816 count++;
2817 }
2818 }
2819 WIN_ReleaseWndPtr(pWnd);
2820 *ppWnd = NULL;
2821 }
2822 else count = 0;
2823 } else list = NULL;
2824
2825 if( pTotal ) *pTotal = count;
2826 return list;
2827 }
2828 /*******************************************************************
2829 * WIN_ReleaseWinArray
2830 */
2831 void WIN_ReleaseWinArray(WND **wndArray)
2832 {
2833 /* Future: this function will also unlock all windows associated with wndArray */
2834 HeapFree( GetProcessHeap(), 0, wndArray );
2835
2836 }
2837
2838 /*******************************************************************
2839 * EnumWindows (USER32.193)
2840 */
2841 BOOL WINAPI EnumWindows( WNDENUMPROC lpEnumFunc, LPARAM lParam )
2842 {
2843 WND **list, **ppWnd;
2844
2845 /* We have to build a list of all windows first, to avoid */
2846 /* unpleasant side-effects, for instance if the callback */
2847 /* function changes the Z-order of the windows. */
2848
2849 if (!(list = WIN_BuildWinArray(WIN_GetDesktop(), 0, NULL )))
2850 {
2851 WIN_ReleaseDesktop();
2852 return FALSE;
2853 }
2854
2855 /* Now call the callback function for every window */
2856
2857 for (ppWnd = list; *ppWnd; ppWnd++)
2858 {
2859 LRESULT lpEnumFuncRetval;
2860 int iWndsLocks = 0;
2861 /* Make sure that the window still exists */
2862 if (!IsWindow((*ppWnd)->hwndSelf)) continue;
2863
2864 /* To avoid any deadlocks, all the locks on the windows
2865 structures must be suspended before the control
2866 is passed to the application */
2867 iWndsLocks = WIN_SuspendWndsLock();
2868 lpEnumFuncRetval = lpEnumFunc( (*ppWnd)->hwndSelf, lParam);
2869 WIN_RestoreWndsLock(iWndsLocks);
2870
2871 if (!lpEnumFuncRetval) break;
2872 }
2873 WIN_ReleaseWinArray(list);
2874 WIN_ReleaseDesktop();
2875 return TRUE;
2876 }
2877
2878
2879 /**********************************************************************
2880 * EnumTaskWindows16 (USER.225)
2881 */
2882 BOOL16 WINAPI EnumTaskWindows16( HTASK16 hTask, WNDENUMPROC16 func,
2883 LPARAM lParam )
2884 {
2885 WND **list, **ppWnd;
2886
2887 /* This function is the same as EnumWindows(), */
2888 /* except for an added check on the window's task. */
2889
2890 if (!(list = WIN_BuildWinArray( WIN_GetDesktop(), 0, NULL )))
2891 {
2892 WIN_ReleaseDesktop();
2893 return FALSE;
2894 }
2895
2896 /* Now call the callback function for every window */
2897
2898 for (ppWnd = list; *ppWnd; ppWnd++)
2899 {
2900 LRESULT funcRetval;
2901 int iWndsLocks = 0;
2902 /* Make sure that the window still exists */
2903 if (!IsWindow((*ppWnd)->hwndSelf)) continue;
2904 if (QUEUE_GetQueueTask((*ppWnd)->hmemTaskQ) != hTask) continue;
2905
2906 /* To avoid any deadlocks, all the locks on the windows
2907 structures must be suspended before the control
2908 is passed to the application */
2909 iWndsLocks = WIN_SuspendWndsLock();
2910 funcRetval = func( (*ppWnd)->hwndSelf, lParam );
2911 WIN_RestoreWndsLock(iWndsLocks);
2912
2913 if (!funcRetval) break;
2914 }
2915 WIN_ReleaseWinArray(list);
2916 WIN_ReleaseDesktop();
2917 return TRUE;
2918 }
2919
2920
2921 /**********************************************************************
2922 * EnumThreadWindows (USER32.190)
2923 */
2924 BOOL WINAPI EnumThreadWindows( DWORD id, WNDENUMPROC func, LPARAM lParam )
2925 {
2926 TEB *teb = THREAD_IdToTEB(id);
2927
2928 return (BOOL16)EnumTaskWindows16(teb->htask16, (WNDENUMPROC16)func, lParam);
2929 }
2930
2931
2932 /**********************************************************************
2933 * WIN_EnumChildWindows
2934 *
2935 * Helper function for EnumChildWindows().
2936 */
2937 static BOOL16 WIN_EnumChildWindows( WND **ppWnd, WNDENUMPROC func, LPARAM lParam )
2938 {
2939 WND **childList;
2940 BOOL16 ret = FALSE;
2941
2942 for ( ; *ppWnd; ppWnd++)
2943 {
2944 int iWndsLocks = 0;
2945
2946 /* Make sure that the window still exists */
2947 if (!IsWindow((*ppWnd)->hwndSelf)) continue;
2948 /* Build children list first */
2949 childList = WIN_BuildWinArray( *ppWnd, BWA_SKIPOWNED, NULL );
2950
2951 /* To avoid any deadlocks, all the locks on the windows
2952 structures must be suspended before the control
2953 is passed to the application */
2954 iWndsLocks = WIN_SuspendWndsLock();
2955 ret = func( (*ppWnd)->hwndSelf, lParam );
2956 WIN_RestoreWndsLock(iWndsLocks);
2957
2958 if (childList)
2959 {
2960 if (ret) ret = WIN_EnumChildWindows( childList, func, lParam );
2961 WIN_ReleaseWinArray(childList);
2962 }
2963 if (!ret) return FALSE;
2964 }
2965 return TRUE;
2966 }
2967
2968
2969 /**********************************************************************
2970 * EnumChildWindows (USER32.178)
2971 */
2972 BOOL WINAPI EnumChildWindows( HWND parent, WNDENUMPROC func,
2973 LPARAM lParam )
2974 {
2975 WND **list, *pParent;
2976
2977 if (!(pParent = WIN_FindWndPtr( parent ))) return FALSE;
2978 if (!(list = WIN_BuildWinArray( pParent, BWA_SKIPOWNED, NULL )))
2979 {
2980 WIN_ReleaseWndPtr(pParent);
2981 return FALSE;
2982 }
2983 WIN_EnumChildWindows( list, func, lParam );
2984 WIN_ReleaseWinArray(list);
2985 WIN_ReleaseWndPtr(pParent);
2986 return TRUE;
2987 }
2988
2989
2990 /*******************************************************************
2991 * AnyPopup16 (USER.52)
2992 */
2993 BOOL16 WINAPI AnyPopup16(void)
2994 {
2995 return AnyPopup();
2996 }
2997
2998
2999 /*******************************************************************
3000 * AnyPopup (USER32.4)
3001 */
3002 BOOL WINAPI AnyPopup(void)
3003 {
3004 WND *wndPtr = WIN_LockWndPtr(pWndDesktop->child);
3005 BOOL retvalue;
3006
3007 while (wndPtr)
3008 {
3009 if (wndPtr->owner && (wndPtr->dwStyle & WS_VISIBLE))
3010 {
3011 retvalue = TRUE;
3012 goto end;
3013 }
3014 WIN_UpdateWndPtr(&wndPtr,wndPtr->next);
3015 }
3016 retvalue = FALSE;
3017 end:
3018 WIN_ReleaseWndPtr(wndPtr);
3019 return retvalue;
3020 }
3021
3022
3023 /*******************************************************************
3024 * FlashWindow16 (USER.105)
3025 */
3026 BOOL16 WINAPI FlashWindow16( HWND16 hWnd, BOOL16 bInvert )
3027 {
3028 return FlashWindow( hWnd, bInvert );
3029 }
3030
3031
3032 /*******************************************************************
3033 * FlashWindow (USER32.202)
3034 */
3035 BOOL WINAPI FlashWindow( HWND hWnd, BOOL bInvert )
3036 {
3037 WND *wndPtr = WIN_FindWndPtr(hWnd);
3038
3039 TRACE("%04x\n", hWnd);
3040
3041 if (!wndPtr) return FALSE;
3042
3043 if (wndPtr->dwStyle & WS_MINIMIZE)
3044 {
3045 if (bInvert && !(wndPtr->flags & WIN_NCACTIVATED))
3046 {
3047 HDC hDC = GetDC(hWnd);
3048
3049 if (!SendMessage16( hWnd, WM_ERASEBKGND, (WPARAM16)hDC, 0 ))
3050 wndPtr->flags |= WIN_NEEDS_ERASEBKGND;
3051
3052 ReleaseDC( hWnd, hDC );
3053 wndPtr->flags |= WIN_NCACTIVATED;
3054 }
3055 else
3056 {
3057 PAINT_RedrawWindow( hWnd, 0, 0, RDW_INVALIDATE | RDW_ERASE |
3058 RDW_UPDATENOW | RDW_FRAME, 0 );
3059 wndPtr->flags &= ~WIN_NCACTIVATED;
3060 }
3061 WIN_ReleaseWndPtr(wndPtr);
3062 return TRUE;
3063 }
3064 else
3065 {
3066 WPARAM16 wparam;
3067 if (bInvert) wparam = !(wndPtr->flags & WIN_NCACTIVATED);
3068 else wparam = (hWnd == GetActiveWindow());
3069
3070 SendMessage16( hWnd, WM_NCACTIVATE, wparam, (LPARAM)0 );
3071 WIN_ReleaseWndPtr(wndPtr);
3072 return wparam;
3073 }
3074 }
3075
3076
3077 /*******************************************************************
3078 * SetSysModalWindow16 (USER.188)
3079 */
3080 HWND16 WINAPI SetSysModalWindow16( HWND16 hWnd )
3081 {
3082 HWND hWndOldModal = hwndSysModal;
3083 hwndSysModal = hWnd;
3084 FIXME("EMPTY STUB !! SetSysModalWindow(%04x) !\n", hWnd);
3085 return hWndOldModal;
3086 }
3087
3088
3089 /*******************************************************************
3090 * GetSysModalWindow16 (USER.52)
3091 */
3092 HWND16 WINAPI GetSysModalWindow16(void)
3093 {
3094 return hwndSysModal;
3095 }
3096
3097
3098 /*******************************************************************
3099 * GetWindowContextHelpId (USER32.303)
3100 */
3101 DWORD WINAPI GetWindowContextHelpId( HWND hwnd )
3102 {
3103 DWORD retval;
3104 WND *wnd = WIN_FindWndPtr( hwnd );
3105 if (!wnd) return 0;
3106 retval = wnd->helpContext;
3107 WIN_ReleaseWndPtr(wnd);
3108 return retval;
3109 }
3110
3111
3112 /*******************************************************************
3113 * SetWindowContextHelpId (USER32.515)
3114 */
3115 BOOL WINAPI SetWindowContextHelpId( HWND hwnd, DWORD id )
3116 {
3117 WND *wnd = WIN_FindWndPtr( hwnd );
3118 if (!wnd) return FALSE;
3119 wnd->helpContext = id;
3120 WIN_ReleaseWndPtr(wnd);
3121 return TRUE;
3122 }
3123
3124
3125 /*******************************************************************
3126 * DRAG_QueryUpdate
3127 *
3128 * recursively find a child that contains spDragInfo->pt point
3129 * and send WM_QUERYDROPOBJECT
3130 */
3131 BOOL16 DRAG_QueryUpdate( HWND hQueryWnd, SEGPTR spDragInfo, BOOL bNoSend )
3132 {
3133 BOOL16 wParam, bResult = 0;
3134 POINT pt;
3135 LPDRAGINFO16 ptrDragInfo = (LPDRAGINFO16) PTR_SEG_TO_LIN(spDragInfo);
3136 WND *ptrQueryWnd = WIN_FindWndPtr(hQueryWnd),*ptrWnd;
3137 RECT tempRect;
3138
3139 if( !ptrQueryWnd || !ptrDragInfo )
3140 goto end;
3141
3142 CONV_POINT16TO32( &ptrDragInfo->pt, &pt );
3143
3144 GetWindowRect(hQueryWnd,&tempRect);
3145
3146 if( !PtInRect(&tempRect,pt) ||
3147 (ptrQueryWnd->dwStyle & WS_DISABLED) )
3148 goto end;
3149
3150 if( !(ptrQueryWnd->dwStyle & WS_MINIMIZE) )
3151 {
3152 tempRect = ptrQueryWnd->rectClient;
3153 if(ptrQueryWnd->dwStyle & WS_CHILD)
3154 MapWindowPoints( ptrQueryWnd->parent->hwndSelf, 0,
3155 (LPPOINT)&tempRect, 2 );
3156
3157 if (PtInRect( &tempRect, pt))
3158 {
3159 wParam = 0;
3160
3161 for (ptrWnd = WIN_LockWndPtr(ptrQueryWnd->child); ptrWnd ;WIN_UpdateWndPtr(&ptrWnd,ptrWnd->next))
3162 {
3163 if( ptrWnd->dwStyle & WS_VISIBLE )
3164 {
3165 GetWindowRect( ptrWnd->hwndSelf, &tempRect );
3166 if (PtInRect( &tempRect, pt )) break;
3167 }
3168 }
3169
3170 if(ptrWnd)
3171 {
3172 TRACE_(msg)("hwnd = %04x, %d %d - %d %d\n",
3173 ptrWnd->hwndSelf, ptrWnd->rectWindow.left, ptrWnd->rectWindow.top,
3174 ptrWnd->rectWindow.right, ptrWnd->rectWindow.bottom );
3175 if( !(ptrWnd->dwStyle & WS_DISABLED) )
3176 bResult = DRAG_QueryUpdate(ptrWnd->hwndSelf, spDragInfo, bNoSend);
3177
3178 WIN_ReleaseWndPtr(ptrWnd);
3179 }
3180
3181 if(bResult)
3182 goto end;
3183 }
3184 else wParam = 1;
3185 }
3186 else wParam = 1;
3187
3188 ScreenToClient16(hQueryWnd,&ptrDragInfo->pt);
3189
3190 ptrDragInfo->hScope = hQueryWnd;
3191
3192 bResult = ( bNoSend )
3193 ? ptrQueryWnd->dwExStyle & WS_EX_ACCEPTFILES
3194 : SendMessage16( hQueryWnd ,WM_QUERYDROPOBJECT ,
3195 (WPARAM16)wParam ,(LPARAM) spDragInfo );
3196 if( !bResult )
3197 CONV_POINT32TO16( &pt, &ptrDragInfo->pt );
3198
3199 end:
3200 WIN_ReleaseWndPtr(ptrQueryWnd);
3201 return bResult;
3202 }
3203
3204
3205 /*******************************************************************
3206 * DragDetect (USER.465)
3207 */
3208 BOOL16 WINAPI DragDetect16( HWND16 hWnd, POINT16 pt )
3209 {
3210 POINT pt32;
3211 CONV_POINT16TO32( &pt, &pt32 );
3212 return DragDetect( hWnd, pt32 );
3213 }
3214
3215 /*******************************************************************
3216 * DragDetect (USER32.151)
3217 */
3218 BOOL WINAPI DragDetect( HWND hWnd, POINT pt )
3219 {
3220 MSG msg;
3221 RECT rect;
3222
3223 rect.left = pt.x - wDragWidth;
3224 rect.right = pt.x + wDragWidth;
3225
3226 rect.top = pt.y - wDragHeight;
3227 rect.bottom = pt.y + wDragHeight;
3228
3229 SetCapture(hWnd);
3230
3231 while(1)
3232 {
3233 while(PeekMessageA(&msg ,0 ,WM_MOUSEFIRST ,WM_MOUSELAST ,PM_REMOVE))
3234 {
3235 if( msg.message == WM_LBUTTONUP )
3236 {
3237 ReleaseCapture();
3238 return 0;
3239 }
3240 if( msg.message == WM_MOUSEMOVE )
3241 {
3242 POINT tmp;
3243 tmp.x = LOWORD(msg.lParam);
3244 tmp.y = HIWORD(msg.lParam);
3245 if( !PtInRect( &rect, tmp ))
3246 {
3247 ReleaseCapture();
3248 return 1;
3249 }
3250 }
3251 }
3252 WaitMessage();
3253 }
3254 return 0;
3255 }
3256
3257 /******************************************************************************
3258 * DragObject16 (USER.464)
3259 */
3260 DWORD WINAPI DragObject16( HWND16 hwndScope, HWND16 hWnd, UINT16 wObj,
3261 HANDLE16 hOfStruct, WORD szList, HCURSOR16 hCursor )
3262 {
3263 MSG msg;
3264 LPDRAGINFO16 lpDragInfo;
3265 SEGPTR spDragInfo;
3266 HCURSOR16 hDragCursor=0, hOldCursor=0, hBummer=0;
3267 HGLOBAL16 hDragInfo = GlobalAlloc16( GMEM_SHARE | GMEM_ZEROINIT, 2*sizeof(DRAGINFO16));
3268 WND *wndPtr = WIN_FindWndPtr(hWnd);
3269 HCURSOR16 hCurrentCursor = 0;
3270 HWND16 hCurrentWnd = 0;
3271
3272 lpDragInfo = (LPDRAGINFO16) GlobalLock16(hDragInfo);
3273 spDragInfo = (SEGPTR) WIN16_GlobalLock16(hDragInfo);
3274
3275 if( !lpDragInfo || !spDragInfo )
3276 {
3277 WIN_ReleaseWndPtr(wndPtr);
3278 return 0L;
3279 }
3280
3281 hBummer = LoadCursorA(0, IDC_BUMMERA);
3282
3283 if( !hBummer || !wndPtr )
3284 {
3285 GlobalFree16(hDragInfo);
3286 WIN_ReleaseWndPtr(wndPtr);
3287 return 0L;
3288 }
3289
3290 if(hCursor)
3291 {
3292 if( !(hDragCursor = CURSORICON_IconToCursor(hCursor, FALSE)) )
3293 {
3294 GlobalFree16(hDragInfo);
3295 WIN_ReleaseWndPtr(wndPtr);
3296 return 0L;
3297 }
3298
3299 if( hDragCursor == hCursor ) hDragCursor = 0;
3300 else hCursor = hDragCursor;
3301
3302 hOldCursor = SetCursor(hDragCursor);
3303 }
3304
3305 lpDragInfo->hWnd = hWnd;
3306 lpDragInfo->hScope = 0;
3307 lpDragInfo->wFlags = wObj;
3308 lpDragInfo->hList = szList; /* near pointer! */
3309 lpDragInfo->hOfStruct = hOfStruct;
3310 lpDragInfo->l = 0L;
3311
3312 SetCapture(hWnd);
3313 ShowCursor( TRUE );
3314
3315 do
3316 {
3317 do{ WaitMessage(); }
3318 while( !PeekMessageA(&msg,0,WM_MOUSEFIRST,WM_MOUSELAST,PM_REMOVE) );
3319
3320 *(lpDragInfo+1) = *lpDragInfo;
3321
3322 lpDragInfo->pt.x = msg.pt.x;
3323 lpDragInfo->pt.y = msg.pt.y;
3324
3325 /* update DRAGINFO struct */
3326 TRACE_(msg)("lpDI->hScope = %04x\n",lpDragInfo->hScope);
3327
3328 if( DRAG_QueryUpdate(hwndScope, spDragInfo, FALSE) > 0 )
3329 hCurrentCursor = hCursor;
3330 else
3331 {
3332 hCurrentCursor = hBummer;
3333 lpDragInfo->hScope = 0;
3334 }
3335 if( hCurrentCursor )
3336 SetCursor(hCurrentCursor);
3337
3338 /* send WM_DRAGLOOP */
3339 SendMessage16( hWnd, WM_DRAGLOOP, (WPARAM16)(hCurrentCursor != hBummer),
3340 (LPARAM) spDragInfo );
3341 /* send WM_DRAGSELECT or WM_DRAGMOVE */
3342 if( hCurrentWnd != lpDragInfo->hScope )
3343 {
3344 if( hCurrentWnd )
3345 SendMessage16( hCurrentWnd, WM_DRAGSELECT, 0,
3346 (LPARAM)MAKELONG(LOWORD(spDragInfo)+sizeof(DRAGINFO16),
3347 HIWORD(spDragInfo)) );
3348 hCurrentWnd = lpDragInfo->hScope;
3349 if( hCurrentWnd )
3350 SendMessage16( hCurrentWnd, WM_DRAGSELECT, 1, (LPARAM)spDragInfo);
3351 }
3352 else
3353 if( hCurrentWnd )
3354 SendMessage16( hCurrentWnd, WM_DRAGMOVE, 0, (LPARAM)spDragInfo);
3355
3356 } while( msg.message != WM_LBUTTONUP && msg.message != WM_NCLBUTTONUP );
3357
3358 ReleaseCapture();
3359 ShowCursor( FALSE );
3360
3361 if( hCursor )
3362 {
3363 SetCursor( hOldCursor );
3364 if (hDragCursor) DestroyCursor( hDragCursor );
3365 }
3366
3367 if( hCurrentCursor != hBummer )
3368 msg.lParam = SendMessage16( lpDragInfo->hScope, WM_DROPOBJECT,
3369 (WPARAM16)hWnd, (LPARAM)spDragInfo );
3370 else
3371 msg.lParam = 0;
3372 GlobalFree16(hDragInfo);
3373 WIN_ReleaseWndPtr(wndPtr);
3374
3375 return (DWORD)(msg.lParam);
3376 }
Windows API implementation