shdocvw/tests: Fix test failures on XP SP2 and higher.
[wine] / dlls / user32 / defwnd.c
1 /*
2  * Default window procedure
3  *
4  * Copyright 1993, 1996 Alexandre Julliard
5  *           1995 Alex Korobka
6  *
7  * This library is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * This library is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with this library; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20  */
21
22 #include "config.h"
23 #include "wine/port.h"
24
25 #include <string.h>
26 #include <stdarg.h>
27
28 #include "windef.h"
29 #include "winbase.h"
30 #include "wingdi.h"
31 #include "winnls.h"
32 #include "win.h"
33 #include "user_private.h"
34 #include "controls.h"
35 #include "wine/unicode.h"
36 #include "wine/winuser16.h"
37 #include "wine/server.h"
38 #include "wine/exception.h"
39 #include "wine/debug.h"
40
41 WINE_DEFAULT_DEBUG_CHANNEL(win);
42
43   /* bits in the dwKeyData */
44 #define KEYDATA_ALT             0x2000
45 #define KEYDATA_PREVSTATE       0x4000
46
47 static short iF10Key = 0;
48 static short iMenuSysKey = 0;
49 static const WCHAR imm32W[] = { 'i','m','m','3','2','\0' };
50
51 /***********************************************************************
52  *           DEFWND_HandleWindowPosChanged
53  *
54  * Handle the WM_WINDOWPOSCHANGED message.
55  */
56 static void DEFWND_HandleWindowPosChanged( HWND hwnd, const WINDOWPOS *winpos )
57 {
58     RECT rect;
59     WND *wndPtr = WIN_GetPtr( hwnd );
60
61     rect = wndPtr->rectClient;
62     WIN_ReleasePtr( wndPtr );
63
64     if (!(winpos->flags & SWP_NOCLIENTMOVE))
65         SendMessageW( hwnd, WM_MOVE, 0, MAKELONG(rect.left, rect.top));
66
67     if (!(winpos->flags & SWP_NOCLIENTSIZE) || (winpos->flags & SWP_STATECHANGED))
68     {
69         WPARAM wp = SIZE_RESTORED;
70         if (IsZoomed(hwnd)) wp = SIZE_MAXIMIZED;
71         else if (IsIconic(hwnd)) wp = SIZE_MINIMIZED;
72
73         SendMessageW( hwnd, WM_SIZE, wp, MAKELONG(rect.right-rect.left, rect.bottom-rect.top) );
74     }
75 }
76
77
78 /***********************************************************************
79  *           DEFWND_SetTextA
80  *
81  * Set the window text.
82  */
83 static void DEFWND_SetTextA( HWND hwnd, LPCSTR text )
84 {
85     int count;
86     WCHAR *textW;
87     WND *wndPtr;
88
89     if (!text) text = "";
90     count = MultiByteToWideChar( CP_ACP, 0, text, -1, NULL, 0 );
91
92     if (!(wndPtr = WIN_GetPtr( hwnd ))) return;
93     if ((textW = HeapAlloc(GetProcessHeap(), 0, count * sizeof(WCHAR))))
94     {
95         HeapFree(GetProcessHeap(), 0, wndPtr->text);
96         wndPtr->text = textW;
97         MultiByteToWideChar( CP_ACP, 0, text, -1, textW, count );
98         SERVER_START_REQ( set_window_text )
99         {
100             req->handle = wine_server_user_handle( hwnd );
101             wine_server_add_data( req, textW, (count-1) * sizeof(WCHAR) );
102             wine_server_call( req );
103         }
104         SERVER_END_REQ;
105     }
106     else
107         ERR("Not enough memory for window text\n");
108     WIN_ReleasePtr( wndPtr );
109
110     USER_Driver->pSetWindowText( hwnd, textW );
111 }
112
113 /***********************************************************************
114  *           DEFWND_SetTextW
115  *
116  * Set the window text.
117  */
118 static void DEFWND_SetTextW( HWND hwnd, LPCWSTR text )
119 {
120     static const WCHAR empty_string[] = {0};
121     WND *wndPtr;
122     int count;
123
124     if (!text) text = empty_string;
125     count = strlenW(text) + 1;
126
127     if (!(wndPtr = WIN_GetPtr( hwnd ))) return;
128     HeapFree(GetProcessHeap(), 0, wndPtr->text);
129     if ((wndPtr->text = HeapAlloc(GetProcessHeap(), 0, count * sizeof(WCHAR))))
130     {
131         strcpyW( wndPtr->text, text );
132         SERVER_START_REQ( set_window_text )
133         {
134             req->handle = wine_server_user_handle( hwnd );
135             wine_server_add_data( req, wndPtr->text, (count-1) * sizeof(WCHAR) );
136             wine_server_call( req );
137         }
138         SERVER_END_REQ;
139     }
140     else
141         ERR("Not enough memory for window text\n");
142     text = wndPtr->text;
143     WIN_ReleasePtr( wndPtr );
144
145     USER_Driver->pSetWindowText( hwnd, text );
146 }
147
148 /***********************************************************************
149  *           DEFWND_ControlColor
150  *
151  * Default colors for control painting.
152  */
153 HBRUSH DEFWND_ControlColor( HDC hDC, UINT ctlType )
154 {
155     if( ctlType == CTLCOLOR_SCROLLBAR)
156     {
157         HBRUSH hb = GetSysColorBrush(COLOR_SCROLLBAR);
158         COLORREF bk = GetSysColor(COLOR_3DHILIGHT);
159         SetTextColor( hDC, GetSysColor(COLOR_3DFACE));
160         SetBkColor( hDC, bk);
161
162         /* if COLOR_WINDOW happens to be the same as COLOR_3DHILIGHT
163          * we better use 0x55aa bitmap brush to make scrollbar's background
164          * look different from the window background.
165          */
166         if (bk == GetSysColor(COLOR_WINDOW))
167             return SYSCOLOR_55AABrush;
168
169         UnrealizeObject( hb );
170         return hb;
171     }
172
173     SetTextColor( hDC, GetSysColor(COLOR_WINDOWTEXT));
174
175     if ((ctlType == CTLCOLOR_EDIT) || (ctlType == CTLCOLOR_LISTBOX))
176         SetBkColor( hDC, GetSysColor(COLOR_WINDOW) );
177     else {
178         SetBkColor( hDC, GetSysColor(COLOR_3DFACE) );
179         return GetSysColorBrush(COLOR_3DFACE);
180     }
181     return GetSysColorBrush(COLOR_WINDOW);
182 }
183
184
185 /***********************************************************************
186  *           DEFWND_Print
187  *
188  * This method handles the default behavior for the WM_PRINT message.
189  */
190 static void DEFWND_Print( HWND hwnd, HDC hdc, ULONG uFlags)
191 {
192   /*
193    * Visibility flag.
194    */
195   if ( (uFlags & PRF_CHECKVISIBLE) &&
196        !IsWindowVisible(hwnd) )
197       return;
198
199   /*
200    * Unimplemented flags.
201    */
202   if ( (uFlags & PRF_CHILDREN) ||
203        (uFlags & PRF_OWNED)    ||
204        (uFlags & PRF_NONCLIENT) )
205   {
206     WARN("WM_PRINT message with unsupported flags\n");
207   }
208
209   /*
210    * Background
211    */
212   if ( uFlags & PRF_ERASEBKGND)
213     SendMessageW(hwnd, WM_ERASEBKGND, (WPARAM)hdc, 0);
214
215   /*
216    * Client area
217    */
218   if ( uFlags & PRF_CLIENT)
219     SendMessageW(hwnd, WM_PRINTCLIENT, (WPARAM)hdc, PRF_CLIENT);
220 }
221
222
223 /*
224  * helpers for calling IMM32
225  *
226  * WM_IME_* messages are generated only by IMM32,
227  * so I assume imm32 is already LoadLibrary-ed.
228  */
229 static HWND DEFWND_ImmGetDefaultIMEWnd( HWND hwnd )
230 {
231     HINSTANCE hInstIMM = GetModuleHandleW( imm32W );
232     HWND (WINAPI *pFunc)(HWND);
233     HWND hwndRet = 0;
234
235     if (!hInstIMM)
236     {
237         ERR( "cannot get IMM32 handle\n" );
238         return 0;
239     }
240
241     pFunc = (void*)GetProcAddress(hInstIMM,"ImmGetDefaultIMEWnd");
242     if ( pFunc != NULL )
243         hwndRet = (*pFunc)( hwnd );
244
245     return hwndRet;
246 }
247
248 static BOOL DEFWND_ImmIsUIMessageA( HWND hwndIME, UINT msg, WPARAM wParam, LPARAM lParam )
249 {
250     HINSTANCE hInstIMM = GetModuleHandleW( imm32W );
251     BOOL (WINAPI *pFunc)(HWND,UINT,WPARAM,LPARAM);
252     BOOL fRet = FALSE;
253
254     if (!hInstIMM)
255     {
256         ERR( "cannot get IMM32 handle\n" );
257         return FALSE;
258     }
259
260     pFunc = (void*)GetProcAddress(hInstIMM,"ImmIsUIMessageA");
261     if ( pFunc != NULL )
262         fRet = (*pFunc)( hwndIME, msg, wParam, lParam );
263
264     return fRet;
265 }
266
267 static BOOL DEFWND_ImmIsUIMessageW( HWND hwndIME, UINT msg, WPARAM wParam, LPARAM lParam )
268 {
269     HINSTANCE hInstIMM = GetModuleHandleW( imm32W );
270     BOOL (WINAPI *pFunc)(HWND,UINT,WPARAM,LPARAM);
271     BOOL fRet = FALSE;
272
273     if (!hInstIMM)
274     {
275         ERR( "cannot get IMM32 handle\n" );
276         return FALSE;
277     }
278
279     pFunc = (void*)GetProcAddress(hInstIMM,"ImmIsUIMessageW");
280     if ( pFunc != NULL )
281         fRet = (*pFunc)( hwndIME, msg, wParam, lParam );
282
283     return fRet;
284 }
285
286
287
288 /***********************************************************************
289  *           DEFWND_DefWinProc
290  *
291  * Default window procedure for messages that are the same in Ansi and Unicode.
292  */
293 static LRESULT DEFWND_DefWinProc( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )
294 {
295     switch(msg)
296     {
297     case WM_NCPAINT:
298         return NC_HandleNCPaint( hwnd, (HRGN)wParam );
299
300     case WM_NCHITTEST:
301         {
302             POINT pt;
303             pt.x = (short)LOWORD(lParam);
304             pt.y = (short)HIWORD(lParam);
305             return NC_HandleNCHitTest( hwnd, pt );
306         }
307
308     case WM_NCCALCSIZE:
309         return NC_HandleNCCalcSize( hwnd, (RECT *)lParam );
310
311     case WM_WINDOWPOSCHANGING:
312         return WINPOS_HandleWindowPosChanging( hwnd, (WINDOWPOS *)lParam );
313
314     case WM_WINDOWPOSCHANGED:
315         DEFWND_HandleWindowPosChanged( hwnd, (const WINDOWPOS *)lParam );
316         break;
317
318     case WM_LBUTTONDOWN:
319     case WM_RBUTTONDOWN:
320     case WM_MBUTTONDOWN:
321         iF10Key = iMenuSysKey = 0;
322         break;
323
324     case WM_NCLBUTTONDOWN:
325         return NC_HandleNCLButtonDown( hwnd, wParam, lParam );
326
327     case WM_LBUTTONDBLCLK:
328         return NC_HandleNCLButtonDblClk( hwnd, HTCLIENT, lParam );
329
330     case WM_NCLBUTTONDBLCLK:
331         return NC_HandleNCLButtonDblClk( hwnd, wParam, lParam );
332
333     case WM_NCRBUTTONDOWN:
334         /* in Windows, capture is taken when right-clicking on the caption bar */
335         if (wParam==HTCAPTION)
336         {
337             SetCapture(hwnd);
338         }
339         break;
340
341     case WM_RBUTTONUP:
342         {
343             POINT pt;
344
345             if (hwnd == GetCapture())
346                 /* release capture if we took it on WM_NCRBUTTONDOWN */
347                 ReleaseCapture();
348
349             pt.x = (short)LOWORD(lParam);
350             pt.y = (short)HIWORD(lParam);
351             ClientToScreen(hwnd, &pt);
352             SendMessageW( hwnd, WM_CONTEXTMENU, (WPARAM)hwnd, MAKELPARAM(pt.x, pt.y) );
353         }
354         break;
355
356     case WM_NCRBUTTONUP:
357         /*
358          * FIXME : we must NOT send WM_CONTEXTMENU on a WM_NCRBUTTONUP (checked
359          * in Windows), but what _should_ we do? According to MSDN :
360          * "If it is appropriate to do so, the system sends the WM_SYSCOMMAND
361          * message to the window". When is it appropriate?
362          */
363         break;
364
365     case WM_CONTEXTMENU:
366         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
367             SendMessageW( GetParent(hwnd), msg, wParam, lParam );
368         else
369         {
370             LONG hitcode;
371             POINT pt;
372             WND *wndPtr = WIN_GetPtr( hwnd );
373             HMENU hMenu = wndPtr->hSysMenu;
374             WIN_ReleasePtr( wndPtr );
375             if (!hMenu) return 0;
376             pt.x = (short)LOWORD(lParam);
377             pt.y = (short)HIWORD(lParam);
378             hitcode = NC_HandleNCHitTest(hwnd, pt);
379
380             /* Track system popup if click was in the caption area. */
381             if (hitcode==HTCAPTION || hitcode==HTSYSMENU)
382                TrackPopupMenu(GetSystemMenu(hwnd, FALSE),
383                                TPM_LEFTBUTTON | TPM_RIGHTBUTTON,
384                                pt.x, pt.y, 0, hwnd, NULL);
385         }
386         break;
387
388     case WM_POPUPSYSTEMMENU:
389         {
390             /* This is an undocumented message used by the windows taskbar to
391                display the system menu of windows that belong to other processes. */
392             HMENU menu = GetSystemMenu(hwnd, FALSE);
393
394             if (menu)
395                 TrackPopupMenu(menu, TPM_LEFTBUTTON|TPM_RIGHTBUTTON,
396                                LOWORD(lParam), HIWORD(lParam), 0, hwnd, NULL);
397             return 0;
398         }
399
400     case WM_NCACTIVATE:
401         return NC_HandleNCActivate( hwnd, wParam, lParam );
402
403     case WM_NCDESTROY:
404         {
405             WND *wndPtr = WIN_GetPtr( hwnd );
406             if (!wndPtr) return 0;
407             HeapFree( GetProcessHeap(), 0, wndPtr->text );
408             wndPtr->text = NULL;
409             HeapFree( GetProcessHeap(), 0, wndPtr->pVScroll );
410             HeapFree( GetProcessHeap(), 0, wndPtr->pHScroll );
411             wndPtr->pVScroll = wndPtr->pHScroll = NULL;
412             WIN_ReleasePtr( wndPtr );
413             return 0;
414         }
415
416     case WM_PRINT:
417         DEFWND_Print(hwnd, (HDC)wParam, lParam);
418         return 0;
419
420     case WM_PAINTICON:
421     case WM_PAINT:
422         {
423             PAINTSTRUCT ps;
424             HDC hdc = BeginPaint( hwnd, &ps );
425             if( hdc )
426             {
427               HICON hIcon;
428               if (IsIconic(hwnd) && ((hIcon = (HICON)GetClassLongPtrW( hwnd, GCLP_HICON))) )
429               {
430                   RECT rc;
431                   int x, y;
432
433                   GetClientRect( hwnd, &rc );
434                   x = (rc.right - rc.left - GetSystemMetrics(SM_CXICON))/2;
435                   y = (rc.bottom - rc.top - GetSystemMetrics(SM_CYICON))/2;
436                   TRACE("Painting class icon: vis rect=(%s)\n",
437                         wine_dbgstr_rect(&ps.rcPaint));
438                   DrawIcon( hdc, x, y, hIcon );
439               }
440               EndPaint( hwnd, &ps );
441             }
442             return 0;
443         }
444
445     case WM_SYNCPAINT:
446         RedrawWindow ( hwnd, NULL, 0, RDW_ERASENOW | RDW_ERASE | RDW_ALLCHILDREN );
447         return 0;
448
449     case WM_SETREDRAW:
450         if (wParam) WIN_SetStyle( hwnd, WS_VISIBLE, 0 );
451         else
452         {
453             RedrawWindow( hwnd, NULL, 0, RDW_ALLCHILDREN | RDW_VALIDATE );
454             WIN_SetStyle( hwnd, 0, WS_VISIBLE );
455         }
456         return 0;
457
458     case WM_CLOSE:
459         DestroyWindow( hwnd );
460         return 0;
461
462     case WM_MOUSEACTIVATE:
463         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
464         {
465             LONG ret = SendMessageW( GetParent(hwnd), WM_MOUSEACTIVATE, wParam, lParam );
466             if (ret) return ret;
467         }
468
469         /* Caption clicks are handled by NC_HandleNCLButtonDown() */
470         return MA_ACTIVATE;
471
472     case WM_ACTIVATE:
473         /* The default action in Windows is to set the keyboard focus to
474          * the window, if it's being activated and not minimized */
475         if (LOWORD(wParam) != WA_INACTIVE) {
476             if (!IsIconic(hwnd)) SetFocus(hwnd);
477         }
478         break;
479
480     case WM_MOUSEWHEEL:
481         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
482             return SendMessageW( GetParent(hwnd), WM_MOUSEWHEEL, wParam, lParam );
483         break;
484
485     case WM_ERASEBKGND:
486     case WM_ICONERASEBKGND:
487         {
488             RECT rect;
489             HDC hdc = (HDC)wParam;
490             HBRUSH hbr = (HBRUSH)GetClassLongPtrW( hwnd, GCLP_HBRBACKGROUND );
491             if (!hbr) return 0;
492
493             if (GetClassLongW( hwnd, GCL_STYLE ) & CS_PARENTDC)
494             {
495                 /* can't use GetClipBox with a parent DC or we fill the whole parent */
496                 GetClientRect( hwnd, &rect );
497                 DPtoLP( hdc, (LPPOINT)&rect, 2 );
498             }
499             else GetClipBox( hdc, &rect );
500             FillRect( hdc, &rect, hbr );
501             return 1;
502         }
503
504     case WM_GETDLGCODE:
505         return 0;
506
507     case WM_CTLCOLORMSGBOX:
508     case WM_CTLCOLOREDIT:
509     case WM_CTLCOLORLISTBOX:
510     case WM_CTLCOLORBTN:
511     case WM_CTLCOLORDLG:
512     case WM_CTLCOLORSTATIC:
513     case WM_CTLCOLORSCROLLBAR:
514         return (LRESULT)DEFWND_ControlColor( (HDC)wParam, msg - WM_CTLCOLORMSGBOX );
515
516     case WM_CTLCOLOR:
517         return (LRESULT)DEFWND_ControlColor( (HDC)wParam, HIWORD(lParam) );
518
519     case WM_SETCURSOR:
520         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
521         {
522             /* with the exception of the border around a resizable wnd,
523              * give the parent first chance to set the cursor */
524             if ((LOWORD(lParam) < HTSIZEFIRST) || (LOWORD(lParam) > HTSIZELAST))
525             {
526                 if (SendMessageW(GetParent(hwnd), WM_SETCURSOR, wParam, lParam)) return TRUE;
527             }
528         }
529         NC_HandleSetCursor( hwnd, wParam, lParam );
530         break;
531
532     case WM_SYSCOMMAND:
533         return NC_HandleSysCommand( hwnd, wParam, lParam );
534
535     case WM_KEYDOWN:
536         if(wParam == VK_F10) iF10Key = VK_F10;
537         break;
538
539     case WM_SYSKEYDOWN:
540         if( HIWORD(lParam) & KEYDATA_ALT )
541         {
542             /* if( HIWORD(lParam) & ~KEYDATA_PREVSTATE ) */
543               if ( (wParam == VK_MENU || wParam == VK_LMENU
544                     || wParam == VK_RMENU) && !iMenuSysKey )
545                 iMenuSysKey = 1;
546               else
547                 iMenuSysKey = 0;
548
549             iF10Key = 0;
550
551             if( wParam == VK_F4 )       /* try to close the window */
552             {
553                 HWND top = GetAncestor( hwnd, GA_ROOT );
554                 if (!(GetClassLongW( top, GCL_STYLE ) & CS_NOCLOSE))
555                     PostMessageW( top, WM_SYSCOMMAND, SC_CLOSE, 0 );
556             }
557         }
558         else if( wParam == VK_F10 )
559             iF10Key = 1;
560         else if( wParam == VK_ESCAPE && (GetKeyState(VK_SHIFT) & 0x8000))
561             SendMessageW( hwnd, WM_SYSCOMMAND, SC_KEYMENU, ' ' );
562         break;
563
564     case WM_KEYUP:
565     case WM_SYSKEYUP:
566         /* Press and release F10 or ALT */
567         if (((wParam == VK_MENU || wParam == VK_LMENU || wParam == VK_RMENU)
568              && iMenuSysKey) || ((wParam == VK_F10) && iF10Key))
569               SendMessageW( GetAncestor( hwnd, GA_ROOT ), WM_SYSCOMMAND, SC_KEYMENU, 0L );
570         iMenuSysKey = iF10Key = 0;
571         break;
572
573     case WM_SYSCHAR:
574     {
575         iMenuSysKey = 0;
576         if (wParam == '\r' && IsIconic(hwnd))
577         {
578             PostMessageW( hwnd, WM_SYSCOMMAND, SC_RESTORE, 0L );
579             break;
580         }
581         if ((HIWORD(lParam) & KEYDATA_ALT) && wParam)
582         {
583             if (wParam == '\t' || wParam == '\x1b') break;
584             if (wParam == ' ' && (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD))
585                 SendMessageW( GetParent(hwnd), msg, wParam, lParam );
586             else
587                 SendMessageW( hwnd, WM_SYSCOMMAND, SC_KEYMENU, wParam );
588         }
589         else /* check for Ctrl-Esc */
590             if (wParam != '\x1b') MessageBeep(0);
591         break;
592     }
593
594     case WM_SHOWWINDOW:
595         {
596             LONG style = GetWindowLongW( hwnd, GWL_STYLE );
597             WND *pWnd;
598             if (!lParam) return 0; /* sent from ShowWindow */
599             if ((style & WS_VISIBLE) && wParam) return 0;
600             if (!(style & WS_VISIBLE) && !wParam) return 0;
601             if (!GetWindow( hwnd, GW_OWNER )) return 0;
602             if (!(pWnd = WIN_GetPtr( hwnd ))) return 0;
603             if (pWnd == WND_OTHER_PROCESS) return 0;
604             if (wParam)
605             {
606                 if (!(pWnd->flags & WIN_NEEDS_SHOW_OWNEDPOPUP))
607                 {
608                     WIN_ReleasePtr( pWnd );
609                     return 0;
610                 }
611                 pWnd->flags &= ~WIN_NEEDS_SHOW_OWNEDPOPUP;
612             }
613             else pWnd->flags |= WIN_NEEDS_SHOW_OWNEDPOPUP;
614             WIN_ReleasePtr( pWnd );
615             ShowWindow( hwnd, wParam ? SW_SHOWNOACTIVATE : SW_HIDE );
616             break;
617         }
618
619     case WM_CANCELMODE:
620         iMenuSysKey = 0;
621         if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)) EndMenu();
622         if (GetCapture() == hwnd) ReleaseCapture();
623         break;
624
625     case WM_VKEYTOITEM:
626     case WM_CHARTOITEM:
627         return -1;
628
629     case WM_DROPOBJECT:
630         return DRAG_FILE;
631
632     case WM_QUERYDROPOBJECT:
633         return (GetWindowLongA( hwnd, GWL_EXSTYLE ) & WS_EX_ACCEPTFILES) != 0;
634
635     case WM_QUERYDRAGICON:
636         {
637             UINT len;
638
639             HICON hIcon = (HICON)GetClassLongPtrW( hwnd, GCLP_HICON );
640             HINSTANCE instance = (HINSTANCE)GetWindowLongPtrW( hwnd, GWLP_HINSTANCE );
641             if (hIcon) return (LRESULT)hIcon;
642             for(len=1; len<64; len++)
643                 if((hIcon = LoadIconW(instance, MAKEINTRESOURCEW(len))))
644                     return (LRESULT)hIcon;
645             return (LRESULT)LoadIconW(0, (LPWSTR)IDI_APPLICATION);
646         }
647         break;
648
649     case WM_ISACTIVEICON:
650         {
651             WND *wndPtr = WIN_GetPtr( hwnd );
652             BOOL ret = (wndPtr->flags & WIN_NCACTIVATED) != 0;
653             WIN_ReleasePtr( wndPtr );
654             return ret;
655         }
656
657     case WM_NOTIFYFORMAT:
658       if (IsWindowUnicode(hwnd)) return NFR_UNICODE;
659       else return NFR_ANSI;
660
661     case WM_QUERYOPEN:
662     case WM_QUERYENDSESSION:
663         return 1;
664
665     case WM_ENDSESSION:
666         if (wParam)
667             PostQuitMessage(0);
668         return 0;
669
670     case WM_SETICON:
671         {
672             HICON ret;
673             WND *wndPtr = WIN_GetPtr( hwnd );
674
675             switch(wParam)
676             {
677             case ICON_SMALL:
678                 ret = wndPtr->hIconSmall;
679                 wndPtr->hIconSmall = (HICON)lParam;
680                 break;
681             case ICON_BIG:
682                 ret = wndPtr->hIcon;
683                 wndPtr->hIcon = (HICON)lParam;
684                 break;
685             default:
686                 ret = 0;
687                 break;
688             }
689             WIN_ReleasePtr( wndPtr );
690
691             USER_Driver->pSetWindowIcon( hwnd, wParam, (HICON)lParam );
692
693             if( (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CAPTION) == WS_CAPTION )
694                 NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
695
696             return (LRESULT)ret;
697         }
698
699     case WM_GETICON:
700         {
701             HICON ret;
702             WND *wndPtr = WIN_GetPtr( hwnd );
703
704             switch(wParam)
705             {
706             case ICON_SMALL:
707                 ret = wndPtr->hIconSmall;
708                 break;
709             case ICON_BIG:
710                 ret = wndPtr->hIcon;
711                 break;
712             case ICON_SMALL2:
713                 ret = wndPtr->hIconSmall;
714                 if (!ret) ret = (HICON)GetClassLongPtrW( hwnd, GCLP_HICONSM );
715                 /* FIXME: should have a default here if class icon is null */
716                 break;
717             default:
718                 ret = 0;
719                 break;
720             }
721             WIN_ReleasePtr( wndPtr );
722             return (LRESULT)ret;
723         }
724
725     case WM_HELP:
726         SendMessageW( GetParent(hwnd), msg, wParam, lParam );
727         break;
728
729     case WM_APPCOMMAND:
730         {
731             HWND parent = GetParent(hwnd);
732             if(!parent)
733                 HOOK_CallHooks(WH_SHELL, HSHELL_APPCOMMAND, wParam, lParam, TRUE);
734             else
735                 SendMessageW( parent, msg, wParam, lParam );
736             break;
737         }
738     case WM_KEYF1:
739         {
740             HELPINFO hi;
741
742             hi.cbSize = sizeof(HELPINFO);
743             GetCursorPos( &hi.MousePos );
744             if (MENU_IsMenuActive())
745             {
746                 hi.iContextType = HELPINFO_MENUITEM;
747                 hi.hItemHandle = MENU_IsMenuActive();
748                 hi.iCtrlId = MenuItemFromPoint( hwnd, hi.hItemHandle, hi.MousePos );
749                 hi.dwContextId = GetMenuContextHelpId( hi.hItemHandle );
750             }
751             else
752             {
753                 hi.iContextType = HELPINFO_WINDOW;
754                 hi.hItemHandle = hwnd;
755                 hi.iCtrlId = GetWindowLongPtrA( hwnd, GWLP_ID );
756                 hi.dwContextId = GetWindowContextHelpId( hwnd );
757             }
758             SendMessageW( hwnd, WM_HELP, 0, (LPARAM)&hi );
759             break;
760         }
761
762     case WM_INPUTLANGCHANGEREQUEST:
763         ActivateKeyboardLayout( (HKL)lParam, 0 );
764         break;
765
766     case WM_INPUTLANGCHANGE:
767         {
768             int count = 0;
769             HWND *win_array = WIN_ListChildren( hwnd );
770
771             if (!win_array)
772                 break;
773             while (win_array[count])
774                 SendMessageW( win_array[count++], WM_INPUTLANGCHANGE, wParam, lParam);
775             HeapFree(GetProcessHeap(),0,win_array);
776             break;
777         }
778
779     }
780
781     return 0;
782 }
783
784 static LPARAM DEFWND_GetTextA( WND *wndPtr, LPSTR dest, WPARAM wParam )
785 {
786     LPARAM result = 0;
787
788     __TRY
789     {
790         if (wndPtr->text)
791         {
792             if (!WideCharToMultiByte( CP_ACP, 0, wndPtr->text, -1,
793                                       dest, wParam, NULL, NULL )) dest[wParam-1] = 0;
794             result = strlen( dest );
795         }
796         else dest[0] = '\0';
797     }
798     __EXCEPT_PAGE_FAULT
799     {
800         return 0;
801     }
802     __ENDTRY
803     return result;
804 }
805
806 /***********************************************************************
807  *              DefWindowProcA (USER32.@)
808  *
809  * See DefWindowProcW.
810  */
811 LRESULT WINAPI DefWindowProcA( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )
812 {
813     LRESULT result = 0;
814     HWND full_handle;
815
816     if (!(full_handle = WIN_IsCurrentProcess( hwnd )))
817     {
818         if (!IsWindow( hwnd )) return 0;
819         ERR( "called for other process window %p\n", hwnd );
820         return 0;
821     }
822     hwnd = full_handle;
823
824     SPY_EnterMessage( SPY_DEFWNDPROC, hwnd, msg, wParam, lParam );
825
826     switch(msg)
827     {
828     case WM_NCCREATE:
829         if (lParam)
830         {
831             CREATESTRUCTA *cs = (CREATESTRUCTA *)lParam;
832             /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
833              * may have child window IDs instead of window name */
834             if (HIWORD(cs->lpszName))
835                 DEFWND_SetTextA( hwnd, cs->lpszName );
836             result = 1;
837         }
838         break;
839
840     case WM_GETTEXTLENGTH:
841         {
842             WND *wndPtr = WIN_GetPtr( hwnd );
843             if (wndPtr && wndPtr->text)
844                 result = WideCharToMultiByte( CP_ACP, 0, wndPtr->text, strlenW(wndPtr->text),
845                                               NULL, 0, NULL, NULL );
846             WIN_ReleasePtr( wndPtr );
847         }
848         break;
849
850     case WM_GETTEXT:
851         if (wParam)
852         {
853             LPSTR dest = (LPSTR)lParam;
854             WND *wndPtr = WIN_GetPtr( hwnd );
855
856             if (!wndPtr) break;
857             result = DEFWND_GetTextA( wndPtr, dest, wParam );
858
859             WIN_ReleasePtr( wndPtr );
860         }
861         break;
862
863     case WM_SETTEXT:
864         DEFWND_SetTextA( hwnd, (LPCSTR)lParam );
865         if( (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CAPTION) == WS_CAPTION )
866             NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
867         result = 1; /* success. FIXME: check text length */
868         break;
869
870     case WM_IME_CHAR:
871         if (HIBYTE(wParam)) PostMessageA( hwnd, WM_CHAR, HIBYTE(wParam), lParam );
872         PostMessageA( hwnd, WM_CHAR, LOBYTE(wParam), lParam );
873         break;
874
875     case WM_IME_KEYDOWN:
876         result = PostMessageA( hwnd, WM_KEYDOWN, wParam, lParam );
877         break;
878
879     case WM_IME_KEYUP:
880         result = PostMessageA( hwnd, WM_KEYUP, wParam, lParam );
881         break;
882
883     case WM_IME_STARTCOMPOSITION:
884     case WM_IME_COMPOSITION:
885     case WM_IME_ENDCOMPOSITION:
886     case WM_IME_SELECT:
887     case WM_IME_NOTIFY:
888         {
889             HWND hwndIME;
890
891             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
892             if (hwndIME)
893                 result = SendMessageA( hwndIME, msg, wParam, lParam );
894         }
895         break;
896     case WM_IME_SETCONTEXT:
897         {
898             HWND hwndIME;
899
900             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
901             if (hwndIME)
902                 result = DEFWND_ImmIsUIMessageA( hwndIME, msg, wParam, lParam );
903         }
904         break;
905
906     case WM_SYSCHAR:
907     {
908         CHAR ch = LOWORD(wParam);
909         WCHAR wch;
910         MultiByteToWideChar(CP_ACP, 0, &ch, 1, &wch, 1);
911         wParam = MAKEWPARAM( wch, HIWORD(wParam) );
912     }
913     /* fall through */
914     default:
915         result = DEFWND_DefWinProc( hwnd, msg, wParam, lParam );
916         break;
917     }
918
919     SPY_ExitMessage( SPY_RESULT_DEFWND, hwnd, msg, result, wParam, lParam );
920     return result;
921 }
922
923
924 static LPARAM DEFWND_GetTextW( WND *wndPtr, LPWSTR dest, WPARAM wParam )
925 {
926     LPARAM result = 0;
927
928     __TRY
929     {
930         if (wndPtr->text)
931         {
932             lstrcpynW( dest, wndPtr->text, wParam );
933             result = strlenW( dest );
934         }
935         else dest[0] = '\0';
936     }
937     __EXCEPT_PAGE_FAULT
938     {
939         return 0;
940     }
941     __ENDTRY
942
943     return result;
944 }
945
946 /***********************************************************************
947  *              DefWindowProcW (USER32.@) Calls default window message handler
948  *
949  * Calls default window procedure for messages not processed
950  *  by application.
951  *
952  *  RETURNS
953  *     Return value is dependent upon the message.
954 */
955 LRESULT WINAPI DefWindowProcW(
956     HWND hwnd,      /* [in] window procedure receiving message */
957     UINT msg,       /* [in] message identifier */
958     WPARAM wParam,  /* [in] first message parameter */
959     LPARAM lParam )   /* [in] second message parameter */
960 {
961     LRESULT result = 0;
962     HWND full_handle;
963
964     if (!(full_handle = WIN_IsCurrentProcess( hwnd )))
965     {
966         if (!IsWindow( hwnd )) return 0;
967         ERR( "called for other process window %p\n", hwnd );
968         return 0;
969     }
970     hwnd = full_handle;
971     SPY_EnterMessage( SPY_DEFWNDPROC, hwnd, msg, wParam, lParam );
972
973     switch(msg)
974     {
975     case WM_NCCREATE:
976         if (lParam)
977         {
978             CREATESTRUCTW *cs = (CREATESTRUCTW *)lParam;
979             /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
980              * may have child window IDs instead of window name */
981             if (HIWORD(cs->lpszName))
982                 DEFWND_SetTextW( hwnd, cs->lpszName );
983             result = 1;
984         }
985         break;
986
987     case WM_GETTEXTLENGTH:
988         {
989             WND *wndPtr = WIN_GetPtr( hwnd );
990             if (wndPtr && wndPtr->text) result = (LRESULT)strlenW(wndPtr->text);
991             WIN_ReleasePtr( wndPtr );
992         }
993         break;
994
995     case WM_GETTEXT:
996         if (wParam)
997         {
998             LPWSTR dest = (LPWSTR)lParam;
999             WND *wndPtr = WIN_GetPtr( hwnd );
1000
1001             if (!wndPtr) break;
1002             result = DEFWND_GetTextW( wndPtr, dest, wParam );
1003             WIN_ReleasePtr( wndPtr );
1004         }
1005         break;
1006
1007     case WM_SETTEXT:
1008         DEFWND_SetTextW( hwnd, (LPCWSTR)lParam );
1009         if( (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CAPTION) == WS_CAPTION )
1010             NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
1011         result = 1; /* success. FIXME: check text length */
1012         break;
1013
1014     case WM_IME_CHAR:
1015         PostMessageW( hwnd, WM_CHAR, wParam, lParam );
1016         break;
1017
1018     case WM_IME_KEYDOWN:
1019         result = PostMessageW( hwnd, WM_KEYDOWN, wParam, lParam );
1020         break;
1021
1022     case WM_IME_KEYUP:
1023         result = PostMessageW( hwnd, WM_KEYUP, wParam, lParam );
1024         break;
1025
1026     case WM_IME_SETCONTEXT:
1027         {
1028             HWND hwndIME;
1029
1030             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
1031             if (hwndIME)
1032                 result = DEFWND_ImmIsUIMessageW( hwndIME, msg, wParam, lParam );
1033         }
1034         break;
1035
1036     case WM_IME_STARTCOMPOSITION:
1037     case WM_IME_COMPOSITION:
1038     case WM_IME_ENDCOMPOSITION:
1039     case WM_IME_SELECT:
1040     case WM_IME_NOTIFY:
1041         {
1042             HWND hwndIME;
1043
1044             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
1045             if (hwndIME)
1046                 result = SendMessageW( hwndIME, msg, wParam, lParam );
1047         }
1048         break;
1049
1050     default:
1051         result = DEFWND_DefWinProc( hwnd, msg, wParam, lParam );
1052         break;
1053     }
1054     SPY_ExitMessage( SPY_RESULT_DEFWND, hwnd, msg, result, wParam, lParam );
1055     return result;
1056 }