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winex11: Remove unnecessary CLIPBOARDINFO structure.
[wine/multimedia.git] / dlls / user32 / class.c
blob531c2e394d32a9388fd21c9224e1b17d1b762456
1 /*
2 * Window classes functions
3 *
4 * Copyright 1993, 1996, 2003 Alexandre Julliard
5 * Copyright 1998 Juergen Schmied (jsch)
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 <assert.h>
26 #include <stdarg.h>
27 #include <stdlib.h>
28 #include <string.h>
29
30 #include "winerror.h"
31 #include "windef.h"
32 #include "winbase.h"
33 #include "wingdi.h"
34 #include "wine/unicode.h"
35 #include "win.h"
36 #include "user_private.h"
37 #include "controls.h"
38 #include "wine/server.h"
39 #include "wine/list.h"
40 #include "wine/debug.h"
41
42 WINE_DEFAULT_DEBUG_CHANNEL(class);
43
44 #define MAX_ATOM_LEN 255 /* from dlls/kernel32/atom.c */
45
46 typedef struct tagCLASS
47 {
48 struct list entry; /* Entry in class list */
49 UINT style; /* Class style */
50 BOOL local; /* Local class? */
51 WNDPROC winproc; /* Window procedure */
52 INT cbClsExtra; /* Class extra bytes */
53 INT cbWndExtra; /* Window extra bytes */
54 LPWSTR menuName; /* Default menu name (Unicode followed by ASCII) */
55 struct dce *dce; /* Opaque pointer to class DCE */
56 HINSTANCE hInstance; /* Module that created the task */
57 HICON hIcon; /* Default icon */
58 HICON hIconSm; /* Default small icon */
59 HICON hIconSmIntern; /* Internal small icon, derived from hIcon */
60 HCURSOR hCursor; /* Default cursor */
61 HBRUSH hbrBackground; /* Default background */
62 ATOM atomName; /* Name of the class */
63 WCHAR name[MAX_ATOM_LEN + 1];
64 } CLASS;
65
66 static struct list class_list = LIST_INIT( class_list );
67 static INIT_ONCE init_once = INIT_ONCE_STATIC_INIT;
68
69 #define CLASS_OTHER_PROCESS ((CLASS *)1)
70
71 /***********************************************************************
72 * get_class_ptr
73 */
74 static CLASS *get_class_ptr( HWND hwnd, BOOL write_access )
75 {
76 WND *ptr = WIN_GetPtr( hwnd );
77
78 if (ptr)
79 {
80 if (ptr != WND_OTHER_PROCESS && ptr != WND_DESKTOP) return ptr->class;
81 if (!write_access) return CLASS_OTHER_PROCESS;
82
83 /* modifying classes in other processes is not allowed */
84 if (ptr == WND_DESKTOP || IsWindow( hwnd ))
85 {
86 SetLastError( ERROR_ACCESS_DENIED );
87 return NULL;
88 }
89 }
90 SetLastError( ERROR_INVALID_WINDOW_HANDLE );
91 return NULL;
92 }
93
94
95 /***********************************************************************
96 * release_class_ptr
97 */
98 static inline void release_class_ptr( CLASS *ptr )
99 {
100 USER_Unlock();
101 }
102
103
104 /***********************************************************************
105 * get_int_atom_value
106 */
107 ATOM get_int_atom_value( LPCWSTR name )
108 {
109 UINT ret = 0;
110
111 if (IS_INTRESOURCE(name)) return LOWORD(name);
112 if (*name++ != '#') return 0;
113 while (*name)
114 {
115 if (*name < '0' || *name > '9') return 0;
116 ret = ret * 10 + *name++ - '0';
117 if (ret > 0xffff) return 0;
118 }
119 return ret;
120 }
121
122
123 /***********************************************************************
124 * is_comctl32_class
125 */
126 static BOOL is_comctl32_class( const WCHAR *name )
127 {
128 static const WCHAR classesW[][20] =
129 {
130 {'C','o','m','b','o','B','o','x','E','x','3','2',0},
131 {'m','s','c','t','l','s','_','h','o','t','k','e','y','3','2',0},
132 {'m','s','c','t','l','s','_','p','r','o','g','r','e','s','s','3','2',0},
133 {'m','s','c','t','l','s','_','s','t','a','t','u','s','b','a','r','3','2',0},
134 {'m','s','c','t','l','s','_','t','r','a','c','k','b','a','r','3','2',0},
135 {'m','s','c','t','l','s','_','u','p','d','o','w','n','3','2',0},
136 {'N','a','t','i','v','e','F','o','n','t','C','t','l',0},
137 {'R','e','B','a','r','W','i','n','d','o','w','3','2',0},
138 {'S','y','s','A','n','i','m','a','t','e','3','2',0},
139 {'S','y','s','D','a','t','e','T','i','m','e','P','i','c','k','3','2',0},
140 {'S','y','s','H','e','a','d','e','r','3','2',0},
141 {'S','y','s','I','P','A','d','d','r','e','s','s','3','2',0},
142 {'S','y','s','L','i','s','t','V','i','e','w','3','2',0},
143 {'S','y','s','M','o','n','t','h','C','a','l','3','2',0},
144 {'S','y','s','P','a','g','e','r',0},
145 {'S','y','s','T','a','b','C','o','n','t','r','o','l','3','2',0},
146 {'S','y','s','T','r','e','e','V','i','e','w','3','2',0},
147 {'T','o','o','l','b','a','r','W','i','n','d','o','w','3','2',0},
148 {'t','o','o','l','t','i','p','s','_','c','l','a','s','s','3','2',0},
149 };
150
151 int min = 0, max = (sizeof(classesW) / sizeof(classesW[0])) - 1;
152
153 while (min <= max)
154 {
155 int res, pos = (min + max) / 2;
156 if (!(res = strcmpiW( name, classesW[pos] ))) return TRUE;
157 if (res < 0) max = pos - 1;
158 else min = pos + 1;
159 }
160 return FALSE;
161 }
162
163
164 /***********************************************************************
165 * set_server_info
166 *
167 * Set class info with the wine server.
168 */
169 static BOOL set_server_info( HWND hwnd, INT offset, LONG_PTR newval, UINT size )
170 {
171 BOOL ret;
172
173 SERVER_START_REQ( set_class_info )
174 {
175 req->window = wine_server_user_handle( hwnd );
176 req->extra_offset = -1;
177 switch(offset)
178 {
179 case GCW_ATOM:
180 req->flags = SET_CLASS_ATOM;
181 req->atom = LOWORD(newval);
182 break;
183 case GCL_STYLE:
184 req->flags = SET_CLASS_STYLE;
185 req->style = newval;
186 break;
187 case GCL_CBWNDEXTRA:
188 req->flags = SET_CLASS_WINEXTRA;
189 req->win_extra = newval;
190 break;
191 case GCLP_HMODULE:
192 req->flags = SET_CLASS_INSTANCE;
193 req->instance = wine_server_client_ptr( (void *)newval );
194 break;
195 default:
196 assert( offset >= 0 );
197 req->flags = SET_CLASS_EXTRA;
198 req->extra_offset = offset;
199 req->extra_size = size;
200 if ( size == sizeof(LONG) )
201 {
202 LONG newlong = newval;
203 memcpy( &req->extra_value, &newlong, sizeof(LONG) );
204 }
205 else
206 memcpy( &req->extra_value, &newval, sizeof(LONG_PTR) );
207 break;
208 }
209 ret = !wine_server_call_err( req );
210 }
211 SERVER_END_REQ;
212 return ret;
213 }
214
215
216 /***********************************************************************
217 * CLASS_GetMenuNameA
218 *
219 * Get the menu name as a ASCII string.
220 */
221 static inline LPSTR CLASS_GetMenuNameA( CLASS *classPtr )
222 {
223 if (IS_INTRESOURCE(classPtr->menuName)) return (LPSTR)classPtr->menuName;
224 return (LPSTR)(classPtr->menuName + strlenW(classPtr->menuName) + 1);
225 }
226
227
228 /***********************************************************************
229 * CLASS_GetMenuNameW
230 *
231 * Get the menu name as a Unicode string.
232 */
233 static inline LPWSTR CLASS_GetMenuNameW( CLASS *classPtr )
234 {
235 return classPtr->menuName;
236 }
237
238
239 /***********************************************************************
240 * CLASS_SetMenuNameA
241 *
242 * Set the menu name in a class structure by copying the string.
243 */
244 static void CLASS_SetMenuNameA( CLASS *classPtr, LPCSTR name )
245 {
246 if (!IS_INTRESOURCE(classPtr->menuName)) HeapFree( GetProcessHeap(), 0, classPtr->menuName );
247 if (!IS_INTRESOURCE(name))
248 {
249 DWORD lenA = strlen(name) + 1;
250 DWORD lenW = MultiByteToWideChar( CP_ACP, 0, name, lenA, NULL, 0 );
251 classPtr->menuName = HeapAlloc( GetProcessHeap(), 0, lenA + lenW*sizeof(WCHAR) );
252 MultiByteToWideChar( CP_ACP, 0, name, lenA, classPtr->menuName, lenW );
253 memcpy( classPtr->menuName + lenW, name, lenA );
254 }
255 else classPtr->menuName = (LPWSTR)name;
256 }
257
258
259 /***********************************************************************
260 * CLASS_SetMenuNameW
261 *
262 * Set the menu name in a class structure by copying the string.
263 */
264 static void CLASS_SetMenuNameW( CLASS *classPtr, LPCWSTR name )
265 {
266 if (!IS_INTRESOURCE(classPtr->menuName)) HeapFree( GetProcessHeap(), 0, classPtr->menuName );
267 if (!IS_INTRESOURCE(name))
268 {
269 DWORD lenW = strlenW(name) + 1;
270 DWORD lenA = WideCharToMultiByte( CP_ACP, 0, name, lenW, NULL, 0, NULL, NULL );
271 classPtr->menuName = HeapAlloc( GetProcessHeap(), 0, lenA + lenW*sizeof(WCHAR) );
272 memcpy( classPtr->menuName, name, lenW*sizeof(WCHAR) );
273 WideCharToMultiByte( CP_ACP, 0, name, lenW,
274 (char *)(classPtr->menuName + lenW), lenA, NULL, NULL );
275 }
276 else classPtr->menuName = (LPWSTR)name;
277 }
278
279
280 /***********************************************************************
281 * CLASS_FreeClass
282 *
283 * Free a class structure.
284 */
285 static void CLASS_FreeClass( CLASS *classPtr )
286 {
287 TRACE("%p\n", classPtr);
288
289 USER_Lock();
290
291 if (classPtr->dce) free_dce( classPtr->dce, 0 );
292 list_remove( &classPtr->entry );
293 if (classPtr->hbrBackground > (HBRUSH)(COLOR_GRADIENTINACTIVECAPTION + 1))
294 DeleteObject( classPtr->hbrBackground );
295 HeapFree( GetProcessHeap(), 0, classPtr->menuName );
296 HeapFree( GetProcessHeap(), 0, classPtr );
297 USER_Unlock();
298 }
299
300
301 /***********************************************************************
302 * CLASS_FindClass
303 *
304 * Return a pointer to the class.
305 */
306 static CLASS *CLASS_FindClass( LPCWSTR name, HINSTANCE hinstance )
307 {
308 static const WCHAR comctl32W[] = {'c','o','m','c','t','l','3','2','.','d','l','l',0};
309 struct list *ptr;
310 ATOM atom = get_int_atom_value( name );
311
312 GetDesktopWindow(); /* create the desktop window to trigger builtin class registration */
313
314 if (!name) return NULL;
315
316 for (;;)
317 {
318 USER_Lock();
319
320 LIST_FOR_EACH( ptr, &class_list )
321 {
322 CLASS *class = LIST_ENTRY( ptr, CLASS, entry );
323 if (atom)
324 {
325 if (class->atomName != atom) continue;
326 }
327 else
328 {
329 if (strcmpiW( class->name, name )) continue;
330 }
331 if (!class->local || class->hInstance == hinstance)
332 {
333 TRACE("%s %p -> %p\n", debugstr_w(name), hinstance, class);
334 return class;
335 }
336 }
337 USER_Unlock();
338
339 if (atom) break;
340 if (!is_comctl32_class( name )) break;
341 if (GetModuleHandleW( comctl32W )) break;
342 if (!LoadLibraryW( comctl32W )) break;
343 TRACE( "%s retrying after loading comctl32\n", debugstr_w(name) );
344 }
345
346 TRACE("%s %p -> not found\n", debugstr_w(name), hinstance);
347 return NULL;
348 }
349
350
351 /***********************************************************************
352 * CLASS_RegisterClass
353 *
354 * The real RegisterClass() functionality.
355 */
356 static CLASS *CLASS_RegisterClass( LPCWSTR name, HINSTANCE hInstance, BOOL local,
357 DWORD style, INT classExtra, INT winExtra )
358 {
359 CLASS *classPtr;
360 BOOL ret;
361
362 TRACE("name=%s hinst=%p style=0x%x clExtr=0x%x winExtr=0x%x\n",
363 debugstr_w(name), hInstance, style, classExtra, winExtra );
364
365 /* Fix the extra bytes value */
366
367 if (classExtra > 40) /* Extra bytes are limited to 40 in Win32 */
368 WARN("Class extra bytes %d is > 40\n", classExtra);
369 if (winExtra > 40) /* Extra bytes are limited to 40 in Win32 */
370 WARN("Win extra bytes %d is > 40\n", winExtra );
371
372 classPtr = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(CLASS) + classExtra );
373 if (!classPtr) return NULL;
374
375 classPtr->atomName = get_int_atom_value( name );
376 if (!classPtr->atomName && name) strcpyW( classPtr->name, name );
377 else GlobalGetAtomNameW( classPtr->atomName, classPtr->name, sizeof(classPtr->name)/sizeof(WCHAR) );
378
379 SERVER_START_REQ( create_class )
380 {
381 req->local = local;
382 req->style = style;
383 req->instance = wine_server_client_ptr( hInstance );
384 req->extra = classExtra;
385 req->win_extra = winExtra;
386 req->client_ptr = wine_server_client_ptr( classPtr );
387 req->atom = classPtr->atomName;
388 if (!req->atom && name) wine_server_add_data( req, name, strlenW(name) * sizeof(WCHAR) );
389 ret = !wine_server_call_err( req );
390 classPtr->atomName = reply->atom;
391 }
392 SERVER_END_REQ;
393 if (!ret)
394 {
395 HeapFree( GetProcessHeap(), 0, classPtr );
396 return NULL;
397 }
398
399 classPtr->style = style;
400 classPtr->local = local;
401 classPtr->cbWndExtra = winExtra;
402 classPtr->cbClsExtra = classExtra;
403 classPtr->hInstance = hInstance;
404
405 /* Other non-null values must be set by caller */
406
407 USER_Lock();
408 if (local) list_add_head( &class_list, &classPtr->entry );
409 else list_add_tail( &class_list, &classPtr->entry );
410 return classPtr;
411 }
412
413
414 /***********************************************************************
415 * register_builtin
416 *
417 * Register a builtin control class.
418 * This allows having both ASCII and Unicode winprocs for the same class.
419 */
420 static void register_builtin( const struct builtin_class_descr *descr )
421 {
422 CLASS *classPtr;
423
424 if (!(classPtr = CLASS_RegisterClass( descr->name, user32_module, FALSE,
425 descr->style, 0, descr->extra ))) return;
426
427 if (descr->cursor) classPtr->hCursor = LoadCursorA( 0, (LPSTR)descr->cursor );
428 classPtr->hbrBackground = descr->brush;
429 classPtr->winproc = BUILTIN_WINPROC( descr->proc );
430 release_class_ptr( classPtr );
431 }
432
433
434 /***********************************************************************
435 * register_builtins
436 */
437 static BOOL WINAPI register_builtins( INIT_ONCE *once, void *param, void **context )
438 {
439 register_builtin( &BUTTON_builtin_class );
440 register_builtin( &COMBO_builtin_class );
441 register_builtin( &COMBOLBOX_builtin_class );
442 register_builtin( &DIALOG_builtin_class );
443 register_builtin( &EDIT_builtin_class );
444 register_builtin( &ICONTITLE_builtin_class );
445 register_builtin( &LISTBOX_builtin_class );
446 register_builtin( &MDICLIENT_builtin_class );
447 register_builtin( &MENU_builtin_class );
448 register_builtin( &SCROLL_builtin_class );
449 register_builtin( &STATIC_builtin_class );
450 register_builtin( &IME_builtin_class );
451 return TRUE;
452 }
453
454
455 /***********************************************************************
456 * register_builtin_classes
457 */
458 void register_builtin_classes(void)
459 {
460 InitOnceExecuteOnce( &init_once, register_builtins, NULL, NULL );
461 }
462
463
464 /***********************************************************************
465 * register_desktop_class
466 */
467 void register_desktop_class(void)
468 {
469 register_builtin( &DESKTOP_builtin_class );
470 register_builtin( &MESSAGE_builtin_class );
471 }
472
473
474 /***********************************************************************
475 * get_class_winproc
476 */
477 WNDPROC get_class_winproc( CLASS *class )
478 {
479 return class->winproc;
480 }
481
482
483 /***********************************************************************
484 * get_class_dce
485 */
486 struct dce *get_class_dce( CLASS *class )
487 {
488 return class->dce;
489 }
490
491
492 /***********************************************************************
493 * set_class_dce
494 */
495 struct dce *set_class_dce( CLASS *class, struct dce *dce )
496 {
497 if (class->dce) return class->dce; /* already set, don't change it */
498 class->dce = dce;
499 return dce;
500 }
501
502
503 /***********************************************************************
504 * RegisterClassA (USER32.@)
505 *
506 * Register a window class.
507 *
508 * RETURNS
509 * >0: Unique identifier
510 * 0: Failure
511 */
512 ATOM WINAPI RegisterClassA( const WNDCLASSA* wc ) /* [in] Address of structure with class data */
513 {
514 WNDCLASSEXA wcex;
515
516 wcex.cbSize = sizeof(wcex);
517 wcex.style = wc->style;
518 wcex.lpfnWndProc = wc->lpfnWndProc;
519 wcex.cbClsExtra = wc->cbClsExtra;
520 wcex.cbWndExtra = wc->cbWndExtra;
521 wcex.hInstance = wc->hInstance;
522 wcex.hIcon = wc->hIcon;
523 wcex.hCursor = wc->hCursor;
524 wcex.hbrBackground = wc->hbrBackground;
525 wcex.lpszMenuName = wc->lpszMenuName;
526 wcex.lpszClassName = wc->lpszClassName;
527 wcex.hIconSm = 0;
528 return RegisterClassExA( &wcex );
529 }
530
531
532 /***********************************************************************
533 * RegisterClassW (USER32.@)
534 *
535 * See RegisterClassA.
536 */
537 ATOM WINAPI RegisterClassW( const WNDCLASSW* wc )
538 {
539 WNDCLASSEXW wcex;
540
541 wcex.cbSize = sizeof(wcex);
542 wcex.style = wc->style;
543 wcex.lpfnWndProc = wc->lpfnWndProc;
544 wcex.cbClsExtra = wc->cbClsExtra;
545 wcex.cbWndExtra = wc->cbWndExtra;
546 wcex.hInstance = wc->hInstance;
547 wcex.hIcon = wc->hIcon;
548 wcex.hCursor = wc->hCursor;
549 wcex.hbrBackground = wc->hbrBackground;
550 wcex.lpszMenuName = wc->lpszMenuName;
551 wcex.lpszClassName = wc->lpszClassName;
552 wcex.hIconSm = 0;
553 return RegisterClassExW( &wcex );
554 }
555
556
557 /***********************************************************************
558 * RegisterClassExA (USER32.@)
559 */
560 ATOM WINAPI RegisterClassExA( const WNDCLASSEXA* wc )
561 {
562 ATOM atom;
563 CLASS *classPtr;
564 HINSTANCE instance;
565
566 GetDesktopWindow(); /* create the desktop window to trigger builtin class registration */
567
568 if (wc->cbSize != sizeof(*wc) || wc->cbClsExtra < 0 || wc->cbWndExtra < 0 ||
569 wc->hInstance == user32_module) /* we can't register a class for user32 */
570 {
571 SetLastError( ERROR_INVALID_PARAMETER );
572 return 0;
573 }
574 if (!(instance = wc->hInstance)) instance = GetModuleHandleW( NULL );
575
576 if (!IS_INTRESOURCE(wc->lpszClassName))
577 {
578 WCHAR name[MAX_ATOM_LEN + 1];
579
580 if (!MultiByteToWideChar( CP_ACP, 0, wc->lpszClassName, -1, name, MAX_ATOM_LEN + 1 )) return 0;
581 classPtr = CLASS_RegisterClass( name, instance, !(wc->style & CS_GLOBALCLASS),
582 wc->style, wc->cbClsExtra, wc->cbWndExtra );
583 }
584 else
585 {
586 classPtr = CLASS_RegisterClass( (LPCWSTR)wc->lpszClassName, instance,
587 !(wc->style & CS_GLOBALCLASS), wc->style,
588 wc->cbClsExtra, wc->cbWndExtra );
589 }
590 if (!classPtr) return 0;
591 atom = classPtr->atomName;
592
593 TRACE("name=%s atom=%04x wndproc=%p hinst=%p bg=%p style=%08x clsExt=%d winExt=%d class=%p\n",
594 debugstr_a(wc->lpszClassName), atom, wc->lpfnWndProc, instance, wc->hbrBackground,
595 wc->style, wc->cbClsExtra, wc->cbWndExtra, classPtr );
596
597 classPtr->hIcon = wc->hIcon;
598 classPtr->hIconSm = wc->hIconSm;
599 classPtr->hIconSmIntern = wc->hIcon && !wc->hIconSm ?
600 CopyImage( wc->hIcon, IMAGE_ICON,
601 GetSystemMetrics( SM_CXSMICON ),
602 GetSystemMetrics( SM_CYSMICON ), 0 ) : NULL;
603 classPtr->hCursor = wc->hCursor;
604 classPtr->hbrBackground = wc->hbrBackground;
605 classPtr->winproc = WINPROC_AllocProc( wc->lpfnWndProc, FALSE );
606 CLASS_SetMenuNameA( classPtr, wc->lpszMenuName );
607 release_class_ptr( classPtr );
608 return atom;
609 }
610
611
612 /***********************************************************************
613 * RegisterClassExW (USER32.@)
614 */
615 ATOM WINAPI RegisterClassExW( const WNDCLASSEXW* wc )
616 {
617 ATOM atom;
618 CLASS *classPtr;
619 HINSTANCE instance;
620
621 GetDesktopWindow(); /* create the desktop window to trigger builtin class registration */
622
623 if (wc->cbSize != sizeof(*wc) || wc->cbClsExtra < 0 || wc->cbWndExtra < 0 ||
624 wc->hInstance == user32_module) /* we can't register a class for user32 */
625 {
626 SetLastError( ERROR_INVALID_PARAMETER );
627 return 0;
628 }
629 if (!(instance = wc->hInstance)) instance = GetModuleHandleW( NULL );
630
631 if (!(classPtr = CLASS_RegisterClass( wc->lpszClassName, instance, !(wc->style & CS_GLOBALCLASS),
632 wc->style, wc->cbClsExtra, wc->cbWndExtra )))
633 return 0;
634
635 atom = classPtr->atomName;
636
637 TRACE("name=%s atom=%04x wndproc=%p hinst=%p bg=%p style=%08x clsExt=%d winExt=%d class=%p\n",
638 debugstr_w(wc->lpszClassName), atom, wc->lpfnWndProc, instance, wc->hbrBackground,
639 wc->style, wc->cbClsExtra, wc->cbWndExtra, classPtr );
640
641 classPtr->hIcon = wc->hIcon;
642 classPtr->hIconSm = wc->hIconSm;
643 classPtr->hIconSmIntern = wc->hIcon && !wc->hIconSm ?
644 CopyImage( wc->hIcon, IMAGE_ICON,
645 GetSystemMetrics( SM_CXSMICON ),
646 GetSystemMetrics( SM_CYSMICON ), 0 ) : NULL;
647 classPtr->hCursor = wc->hCursor;
648 classPtr->hbrBackground = wc->hbrBackground;
649 classPtr->winproc = WINPROC_AllocProc( wc->lpfnWndProc, TRUE );
650 CLASS_SetMenuNameW( classPtr, wc->lpszMenuName );
651 release_class_ptr( classPtr );
652 return atom;
653 }
654
655
656 /***********************************************************************
657 * UnregisterClassA (USER32.@)
658 */
659 BOOL WINAPI UnregisterClassA( LPCSTR className, HINSTANCE hInstance )
660 {
661 if (!IS_INTRESOURCE(className))
662 {
663 WCHAR name[MAX_ATOM_LEN + 1];
664
665 if (!MultiByteToWideChar( CP_ACP, 0, className, -1, name, MAX_ATOM_LEN + 1 ))
666 return FALSE;
667 return UnregisterClassW( name, hInstance );
668 }
669 return UnregisterClassW( (LPCWSTR)className, hInstance );
670 }
671
672 /***********************************************************************
673 * UnregisterClassW (USER32.@)
674 */
675 BOOL WINAPI UnregisterClassW( LPCWSTR className, HINSTANCE hInstance )
676 {
677 CLASS *classPtr = NULL;
678
679 GetDesktopWindow(); /* create the desktop window to trigger builtin class registration */
680
681 SERVER_START_REQ( destroy_class )
682 {
683 req->instance = wine_server_client_ptr( hInstance );
684 if (!(req->atom = get_int_atom_value(className)) && className)
685 wine_server_add_data( req, className, strlenW(className) * sizeof(WCHAR) );
686 if (!wine_server_call_err( req )) classPtr = wine_server_get_ptr( reply->client_ptr );
687 }
688 SERVER_END_REQ;
689
690 if (classPtr) CLASS_FreeClass( classPtr );
691 return (classPtr != NULL);
692 }
693
694
695 /***********************************************************************
696 * GetClassWord (USER32.@)
697 */
698 WORD WINAPI GetClassWord( HWND hwnd, INT offset )
699 {
700 CLASS *class;
701 WORD retvalue = 0;
702
703 if (offset < 0) return GetClassLongA( hwnd, offset );
704
705 if (!(class = get_class_ptr( hwnd, FALSE ))) return 0;
706
707 if (class == CLASS_OTHER_PROCESS)
708 {
709 SERVER_START_REQ( set_class_info )
710 {
711 req->window = wine_server_user_handle( hwnd );
712 req->flags = 0;
713 req->extra_offset = offset;
714 req->extra_size = sizeof(retvalue);
715 if (!wine_server_call_err( req ))
716 memcpy( &retvalue, &reply->old_extra_value, sizeof(retvalue) );
717 }
718 SERVER_END_REQ;
719 return retvalue;
720 }
721
722 if (offset <= class->cbClsExtra - sizeof(WORD))
723 memcpy( &retvalue, (char *)(class + 1) + offset, sizeof(retvalue) );
724 else
725 SetLastError( ERROR_INVALID_INDEX );
726 release_class_ptr( class );
727 return retvalue;
728 }
729
730
731 /***********************************************************************
732 * CLASS_GetClassLong
733 *
734 * Implementation of GetClassLong(Ptr)A/W
735 */
736 static ULONG_PTR CLASS_GetClassLong( HWND hwnd, INT offset, UINT size,
737 BOOL unicode )
738 {
739 CLASS *class;
740 ULONG_PTR retvalue = 0;
741
742 if (!(class = get_class_ptr( hwnd, FALSE ))) return 0;
743
744 if (class == CLASS_OTHER_PROCESS)
745 {
746 SERVER_START_REQ( set_class_info )
747 {
748 req->window = wine_server_user_handle( hwnd );
749 req->flags = 0;
750 req->extra_offset = (offset >= 0) ? offset : -1;
751 req->extra_size = (offset >= 0) ? size : 0;
752 if (!wine_server_call_err( req ))
753 {
754 switch(offset)
755 {
756 case GCLP_HBRBACKGROUND:
757 case GCLP_HCURSOR:
758 case GCLP_HICON:
759 case GCLP_HICONSM:
760 case GCLP_WNDPROC:
761 case GCLP_MENUNAME:
762 FIXME( "offset %d (%s) not supported on other process window %p\n",
763 offset, SPY_GetClassLongOffsetName(offset), hwnd );
764 SetLastError( ERROR_INVALID_HANDLE );
765 break;
766 case GCL_STYLE:
767 retvalue = reply->old_style;
768 break;
769 case GCL_CBWNDEXTRA:
770 retvalue = reply->old_win_extra;
771 break;
772 case GCL_CBCLSEXTRA:
773 retvalue = reply->old_extra;
774 break;
775 case GCLP_HMODULE:
776 retvalue = (ULONG_PTR)wine_server_get_ptr( reply->old_instance );
777 break;
778 case GCW_ATOM:
779 retvalue = reply->old_atom;
780 break;
781 default:
782 if (offset >= 0)
783 {
784 if (size == sizeof(DWORD))
785 {
786 DWORD retdword;
787 memcpy( &retdword, &reply->old_extra_value, sizeof(DWORD) );
788 retvalue = retdword;
789 }
790 else
791 memcpy( &retvalue, &reply->old_extra_value,
792 sizeof(ULONG_PTR) );
793 }
794 else SetLastError( ERROR_INVALID_INDEX );
795 break;
796 }
797 }
798 }
799 SERVER_END_REQ;
800 return retvalue;
801 }
802
803 if (offset >= 0)
804 {
805 if (offset <= class->cbClsExtra - size)
806 {
807 if (size == sizeof(DWORD))
808 {
809 DWORD retdword;
810 memcpy( &retdword, (char *)(class + 1) + offset, sizeof(DWORD) );
811 retvalue = retdword;
812 }
813 else
814 memcpy( &retvalue, (char *)(class + 1) + offset, sizeof(ULONG_PTR) );
815 }
816 else
817 SetLastError( ERROR_INVALID_INDEX );
818 release_class_ptr( class );
819 return retvalue;
820 }
821
822 switch(offset)
823 {
824 case GCLP_HBRBACKGROUND:
825 retvalue = (ULONG_PTR)class->hbrBackground;
826 break;
827 case GCLP_HCURSOR:
828 retvalue = (ULONG_PTR)class->hCursor;
829 break;
830 case GCLP_HICON:
831 retvalue = (ULONG_PTR)class->hIcon;
832 break;
833 case GCLP_HICONSM:
834 retvalue = (ULONG_PTR)(class->hIconSm ? class->hIconSm : class->hIconSmIntern);
835 break;
836 case GCL_STYLE:
837 retvalue = class->style;
838 break;
839 case GCL_CBWNDEXTRA:
840 retvalue = class->cbWndExtra;
841 break;
842 case GCL_CBCLSEXTRA:
843 retvalue = class->cbClsExtra;
844 break;
845 case GCLP_HMODULE:
846 retvalue = (ULONG_PTR)class->hInstance;
847 break;
848 case GCLP_WNDPROC:
849 retvalue = (ULONG_PTR)WINPROC_GetProc( class->winproc, unicode );
850 break;
851 case GCLP_MENUNAME:
852 retvalue = (ULONG_PTR)CLASS_GetMenuNameW( class );
853 if (unicode)
854 retvalue = (ULONG_PTR)CLASS_GetMenuNameW( class );
855 else
856 retvalue = (ULONG_PTR)CLASS_GetMenuNameA( class );
857 break;
858 case GCW_ATOM:
859 retvalue = class->atomName;
860 break;
861 default:
862 SetLastError( ERROR_INVALID_INDEX );
863 break;
864 }
865 release_class_ptr( class );
866 return retvalue;
867 }
868
869
870 /***********************************************************************
871 * GetClassLongW (USER32.@)
872 */
873 DWORD WINAPI GetClassLongW( HWND hwnd, INT offset )
874 {
875 return CLASS_GetClassLong( hwnd, offset, sizeof(DWORD), TRUE );
876 }
877
878
879
880 /***********************************************************************
881 * GetClassLongA (USER32.@)
882 */
883 DWORD WINAPI GetClassLongA( HWND hwnd, INT offset )
884 {
885 return CLASS_GetClassLong( hwnd, offset, sizeof(DWORD), FALSE );
886 }
887
888
889 /***********************************************************************
890 * SetClassWord (USER32.@)
891 */
892 WORD WINAPI SetClassWord( HWND hwnd, INT offset, WORD newval )
893 {
894 CLASS *class;
895 WORD retval = 0;
896
897 if (offset < 0) return SetClassLongA( hwnd, offset, (DWORD)newval );
898
899 if (!(class = get_class_ptr( hwnd, TRUE ))) return 0;
900
901 SERVER_START_REQ( set_class_info )
902 {
903 req->window = wine_server_user_handle( hwnd );
904 req->flags = SET_CLASS_EXTRA;
905 req->extra_offset = offset;
906 req->extra_size = sizeof(newval);
907 memcpy( &req->extra_value, &newval, sizeof(newval) );
908 if (!wine_server_call_err( req ))
909 {
910 void *ptr = (char *)(class + 1) + offset;
911 memcpy( &retval, ptr, sizeof(retval) );
912 memcpy( ptr, &newval, sizeof(newval) );
913 }
914 }
915 SERVER_END_REQ;
916 release_class_ptr( class );
917 return retval;
918 }
919
920
921 /***********************************************************************
922 * CLASS_SetClassLong
923 *
924 * Implementation of SetClassLong(Ptr)A/W
925 */
926 static ULONG_PTR CLASS_SetClassLong( HWND hwnd, INT offset, LONG_PTR newval,
927 UINT size, BOOL unicode )
928 {
929 CLASS *class;
930 ULONG_PTR retval = 0;
931
932 if (!(class = get_class_ptr( hwnd, TRUE ))) return 0;
933
934 if (offset >= 0)
935 {
936 if (set_server_info( hwnd, offset, newval, size ))
937 {
938 void *ptr = (char *)(class + 1) + offset;
939 if ( size == sizeof(LONG) )
940 {
941 DWORD retdword;
942 LONG newlong = newval;
943 memcpy( &retdword, ptr, sizeof(DWORD) );
944 memcpy( ptr, &newlong, sizeof(LONG) );
945 retval = retdword;
946 }
947 else
948 {
949 memcpy( &retval, ptr, sizeof(ULONG_PTR) );
950 memcpy( ptr, &newval, sizeof(LONG_PTR) );
951 }
952 }
953 }
954 else switch(offset)
955 {
956 case GCLP_MENUNAME:
957 if ( unicode )
958 CLASS_SetMenuNameW( class, (LPCWSTR)newval );
959 else
960 CLASS_SetMenuNameA( class, (LPCSTR)newval );
961 retval = 0; /* Old value is now meaningless anyway */
962 break;
963 case GCLP_WNDPROC:
964 retval = (ULONG_PTR)WINPROC_GetProc( class->winproc, unicode );
965 class->winproc = WINPROC_AllocProc( (WNDPROC)newval, unicode );
966 break;
967 case GCLP_HBRBACKGROUND:
968 retval = (ULONG_PTR)class->hbrBackground;
969 class->hbrBackground = (HBRUSH)newval;
970 break;
971 case GCLP_HCURSOR:
972 retval = (ULONG_PTR)class->hCursor;
973 class->hCursor = (HCURSOR)newval;
974 break;
975 case GCLP_HICON:
976 retval = (ULONG_PTR)class->hIcon;
977 if (retval && class->hIconSmIntern)
978 {
979 DestroyIcon(class->hIconSmIntern);
980 class->hIconSmIntern = NULL;
981 }
982 if (newval && !class->hIconSm)
983 class->hIconSmIntern = CopyImage( (HICON)newval, IMAGE_ICON,
984 GetSystemMetrics( SM_CXSMICON ), GetSystemMetrics( SM_CYSMICON ), 0 );
985 class->hIcon = (HICON)newval;
986 break;
987 case GCLP_HICONSM:
988 retval = (ULONG_PTR)class->hIconSm;
989 if (retval && !newval)
990 class->hIconSmIntern = class->hIcon ? CopyImage( class->hIcon, IMAGE_ICON,
991 GetSystemMetrics( SM_CXSMICON ),
992 GetSystemMetrics( SM_CYSMICON ), 0 ) : NULL;
993 else if (!retval && newval && class->hIconSmIntern)
994 {
995 DestroyIcon(class->hIconSmIntern);
996 class->hIconSmIntern = NULL;
997 }
998 class->hIconSm = (HICON)newval;
999 break;
1000 case GCL_STYLE:
1001 if (!set_server_info( hwnd, offset, newval, size )) break;
1002 retval = class->style;
1003 class->style = newval;
1004 break;
1005 case GCL_CBWNDEXTRA:
1006 if (!set_server_info( hwnd, offset, newval, size )) break;
1007 retval = class->cbWndExtra;
1008 class->cbWndExtra = newval;
1009 break;
1010 case GCLP_HMODULE:
1011 if (!set_server_info( hwnd, offset, newval, size )) break;
1012 retval = (ULONG_PTR)class->hInstance;
1013 class->hInstance = (HINSTANCE)newval;
1014 break;
1015 case GCW_ATOM:
1016 if (!set_server_info( hwnd, offset, newval, size )) break;
1017 retval = class->atomName;
1018 class->atomName = newval;
1019 GlobalGetAtomNameW( newval, class->name, sizeof(class->name)/sizeof(WCHAR) );
1020 break;
1021 case GCL_CBCLSEXTRA: /* cannot change this one */
1022 SetLastError( ERROR_INVALID_PARAMETER );
1023 break;
1024 default:
1025 SetLastError( ERROR_INVALID_INDEX );
1026 break;
1027 }
1028 release_class_ptr( class );
1029 return retval;
1030 }
1031
1032
1033 /***********************************************************************
1034 * SetClassLongW (USER32.@)
1035 */
1036 DWORD WINAPI SetClassLongW( HWND hwnd, INT offset, LONG newval )
1037 {
1038 return CLASS_SetClassLong( hwnd, offset, newval, sizeof(LONG), TRUE );
1039 }
1040
1041
1042 /***********************************************************************
1043 * SetClassLongA (USER32.@)
1044 */
1045 DWORD WINAPI SetClassLongA( HWND hwnd, INT offset, LONG newval )
1046 {
1047 return CLASS_SetClassLong( hwnd, offset, newval, sizeof(LONG), FALSE );
1048 }
1049
1050
1051 /***********************************************************************
1052 * GetClassNameA (USER32.@)
1053 */
1054 INT WINAPI GetClassNameA( HWND hwnd, LPSTR buffer, INT count )
1055 {
1056 WCHAR tmpbuf[MAX_ATOM_LEN + 1];
1057 DWORD len;
1058
1059 if (count <= 0) return 0;
1060 if (!GetClassNameW( hwnd, tmpbuf, sizeof(tmpbuf)/sizeof(WCHAR) )) return 0;
1061 RtlUnicodeToMultiByteN( buffer, count - 1, &len, tmpbuf, strlenW(tmpbuf) * sizeof(WCHAR) );
1062 buffer[len] = 0;
1063 return len;
1064 }
1065
1066
1067 /***********************************************************************
1068 * GetClassNameW (USER32.@)
1069 */
1070 INT WINAPI GetClassNameW( HWND hwnd, LPWSTR buffer, INT count )
1071 {
1072 CLASS *class;
1073 INT ret;
1074
1075 TRACE("%p %p %d\n", hwnd, buffer, count);
1076
1077 if (count <= 0) return 0;
1078
1079 if (!(class = get_class_ptr( hwnd, FALSE ))) return 0;
1080
1081 if (class == CLASS_OTHER_PROCESS)
1082 {
1083 WCHAR tmpbuf[MAX_ATOM_LEN + 1];
1084
1085 ret = GlobalGetAtomNameW( GetClassLongW( hwnd, GCW_ATOM ), tmpbuf, MAX_ATOM_LEN + 1 );
1086 if (ret)
1087 {
1088 ret = min(count - 1, ret);
1089 memcpy(buffer, tmpbuf, ret * sizeof(WCHAR));
1090 buffer[ret] = 0;
1091 }
1092 }
1093 else
1094 {
1095 lstrcpynW( buffer, class->name, count );
1096 release_class_ptr( class );
1097 ret = strlenW( buffer );
1098 }
1099 return ret;
1100 }
1101
1102
1103 /***********************************************************************
1104 * RealGetWindowClassA (USER32.@)
1105 */
1106 UINT WINAPI RealGetWindowClassA( HWND hwnd, LPSTR buffer, UINT count )
1107 {
1108 return GetClassNameA( hwnd, buffer, count );
1109 }
1110
1111
1112 /***********************************************************************
1113 * RealGetWindowClassW (USER32.@)
1114 */
1115 UINT WINAPI RealGetWindowClassW( HWND hwnd, LPWSTR buffer, UINT count )
1116 {
1117 return GetClassNameW( hwnd, buffer, count );
1118 }
1119
1120
1121 /***********************************************************************
1122 * GetClassInfoA (USER32.@)
1123 */
1124 BOOL WINAPI GetClassInfoA( HINSTANCE hInstance, LPCSTR name, WNDCLASSA *wc )
1125 {
1126 WNDCLASSEXA wcex;
1127 UINT ret = GetClassInfoExA( hInstance, name, &wcex );
1128
1129 if (ret)
1130 {
1131 wc->style = wcex.style;
1132 wc->lpfnWndProc = wcex.lpfnWndProc;
1133 wc->cbClsExtra = wcex.cbClsExtra;
1134 wc->cbWndExtra = wcex.cbWndExtra;
1135 wc->hInstance = wcex.hInstance;
1136 wc->hIcon = wcex.hIcon;
1137 wc->hCursor = wcex.hCursor;
1138 wc->hbrBackground = wcex.hbrBackground;
1139 wc->lpszMenuName = wcex.lpszMenuName;
1140 wc->lpszClassName = wcex.lpszClassName;
1141 }
1142 return ret;
1143 }
1144
1145
1146 /***********************************************************************
1147 * GetClassInfoW (USER32.@)
1148 */
1149 BOOL WINAPI GetClassInfoW( HINSTANCE hInstance, LPCWSTR name, WNDCLASSW *wc )
1150 {
1151 WNDCLASSEXW wcex;
1152 UINT ret = GetClassInfoExW( hInstance, name, &wcex );
1153
1154 if (ret)
1155 {
1156 wc->style = wcex.style;
1157 wc->lpfnWndProc = wcex.lpfnWndProc;
1158 wc->cbClsExtra = wcex.cbClsExtra;
1159 wc->cbWndExtra = wcex.cbWndExtra;
1160 wc->hInstance = wcex.hInstance;
1161 wc->hIcon = wcex.hIcon;
1162 wc->hCursor = wcex.hCursor;
1163 wc->hbrBackground = wcex.hbrBackground;
1164 wc->lpszMenuName = wcex.lpszMenuName;
1165 wc->lpszClassName = wcex.lpszClassName;
1166 }
1167 return ret;
1168 }
1169
1170
1171 /***********************************************************************
1172 * GetClassInfoExA (USER32.@)
1173 */
1174 BOOL WINAPI GetClassInfoExA( HINSTANCE hInstance, LPCSTR name, WNDCLASSEXA *wc )
1175 {
1176 ATOM atom;
1177 CLASS *classPtr;
1178
1179 TRACE("%p %s %p\n", hInstance, debugstr_a(name), wc);
1180
1181 if (!wc)
1182 {
1183 SetLastError( ERROR_NOACCESS );
1184 return FALSE;
1185 }
1186
1187 if (!hInstance) hInstance = user32_module;
1188
1189 if (!IS_INTRESOURCE(name))
1190 {
1191 WCHAR nameW[MAX_ATOM_LEN + 1];
1192 if (!MultiByteToWideChar( CP_ACP, 0, name, -1, nameW, sizeof(nameW)/sizeof(WCHAR) ))
1193 return FALSE;
1194 classPtr = CLASS_FindClass( nameW, hInstance );
1195 }
1196 else classPtr = CLASS_FindClass( (LPCWSTR)name, hInstance );
1197
1198 if (!classPtr)
1199 {
1200 SetLastError( ERROR_CLASS_DOES_NOT_EXIST );
1201 return FALSE;
1202 }
1203 wc->style = classPtr->style;
1204 wc->lpfnWndProc = WINPROC_GetProc( classPtr->winproc, FALSE );
1205 wc->cbClsExtra = classPtr->cbClsExtra;
1206 wc->cbWndExtra = classPtr->cbWndExtra;
1207 wc->hInstance = (hInstance == user32_module) ? 0 : hInstance;
1208 wc->hIcon = classPtr->hIcon;
1209 wc->hIconSm = classPtr->hIconSm ? classPtr->hIconSm : classPtr->hIconSmIntern;
1210 wc->hCursor = classPtr->hCursor;
1211 wc->hbrBackground = classPtr->hbrBackground;
1212 wc->lpszMenuName = CLASS_GetMenuNameA( classPtr );
1213 wc->lpszClassName = name;
1214 atom = classPtr->atomName;
1215 release_class_ptr( classPtr );
1216
1217 /* We must return the atom of the class here instead of just TRUE. */
1218 return atom;
1219 }
1220
1221
1222 /***********************************************************************
1223 * GetClassInfoExW (USER32.@)
1224 */
1225 BOOL WINAPI GetClassInfoExW( HINSTANCE hInstance, LPCWSTR name, WNDCLASSEXW *wc )
1226 {
1227 ATOM atom;
1228 CLASS *classPtr;
1229
1230 TRACE("%p %s %p\n", hInstance, debugstr_w(name), wc);
1231
1232 if (!wc)
1233 {
1234 SetLastError( ERROR_NOACCESS );
1235 return FALSE;
1236 }
1237
1238 if (!hInstance) hInstance = user32_module;
1239
1240 if (!(classPtr = CLASS_FindClass( name, hInstance )))
1241 {
1242 SetLastError( ERROR_CLASS_DOES_NOT_EXIST );
1243 return FALSE;
1244 }
1245 wc->style = classPtr->style;
1246 wc->lpfnWndProc = WINPROC_GetProc( classPtr->winproc, TRUE );
1247 wc->cbClsExtra = classPtr->cbClsExtra;
1248 wc->cbWndExtra = classPtr->cbWndExtra;
1249 wc->hInstance = (hInstance == user32_module) ? 0 : hInstance;
1250 wc->hIcon = classPtr->hIcon;
1251 wc->hIconSm = classPtr->hIconSm ? classPtr->hIconSm : classPtr->hIconSmIntern;
1252 wc->hCursor = classPtr->hCursor;
1253 wc->hbrBackground = classPtr->hbrBackground;
1254 wc->lpszMenuName = CLASS_GetMenuNameW( classPtr );
1255 wc->lpszClassName = name;
1256 atom = classPtr->atomName;
1257 release_class_ptr( classPtr );
1258
1259 /* We must return the atom of the class here instead of just TRUE. */
1260 return atom;
1261 }
1262
1263
1264 #if 0 /* toolhelp is in kernel, so this cannot work */
1265
1266 /***********************************************************************
1267 * ClassFirst (TOOLHELP.69)
1268 */
1269 BOOL16 WINAPI ClassFirst16( CLASSENTRY *pClassEntry )
1270 {
1271 TRACE("%p\n",pClassEntry);
1272 pClassEntry->wNext = 1;
1273 return ClassNext16( pClassEntry );
1274 }
1275
1276
1277 /***********************************************************************
1278 * ClassNext (TOOLHELP.70)
1279 */
1280 BOOL16 WINAPI ClassNext16( CLASSENTRY *pClassEntry )
1281 {
1282 int i;
1283 CLASS *class = firstClass;
1284
1285 TRACE("%p\n",pClassEntry);
1286
1287 if (!pClassEntry->wNext) return FALSE;
1288 for (i = 1; (i < pClassEntry->wNext) && class; i++) class = class->next;
1289 if (!class)
1290 {
1291 pClassEntry->wNext = 0;
1292 return FALSE;
1293 }
1294 pClassEntry->hInst = class->hInstance;
1295 pClassEntry->wNext++;
1296 GlobalGetAtomNameA( class->atomName, pClassEntry->szClassName,
1297 sizeof(pClassEntry->szClassName) );
1298 return TRUE;
1299 }
1300 #endif
1301
1302 /* 64bit versions */
1303
1304 #ifdef GetClassLongPtrA
1305 #undef GetClassLongPtrA
1306 #endif
1307
1308 #ifdef GetClassLongPtrW
1309 #undef GetClassLongPtrW
1310 #endif
1311
1312 #ifdef SetClassLongPtrA
1313 #undef SetClassLongPtrA
1314 #endif
1315
1316 #ifdef SetClassLongPtrW
1317 #undef SetClassLongPtrW
1318 #endif
1319
1320 /***********************************************************************
1321 * GetClassLongPtrA (USER32.@)
1322 */
1323 ULONG_PTR WINAPI GetClassLongPtrA( HWND hwnd, INT offset )
1324 {
1325 return CLASS_GetClassLong( hwnd, offset, sizeof(ULONG_PTR), FALSE );
1326 }
1327
1328 /***********************************************************************
1329 * GetClassLongPtrW (USER32.@)
1330 */
1331 ULONG_PTR WINAPI GetClassLongPtrW( HWND hwnd, INT offset )
1332 {
1333 return CLASS_GetClassLong( hwnd, offset, sizeof(ULONG_PTR), TRUE );
1334 }
1335
1336 /***********************************************************************
1337 * SetClassLongPtrW (USER32.@)
1338 */
1339 ULONG_PTR WINAPI SetClassLongPtrW( HWND hwnd, INT offset, LONG_PTR newval )
1340 {
1341 return CLASS_SetClassLong( hwnd, offset, newval, sizeof(LONG_PTR), TRUE );
1342 }
1343
1344 /***********************************************************************
1345 * SetClassLongPtrA (USER32.@)
1346 */
1347 ULONG_PTR WINAPI SetClassLongPtrA( HWND hwnd, INT offset, LONG_PTR newval )
1348 {
1349 return CLASS_SetClassLong( hwnd, offset, newval, sizeof(LONG_PTR), FALSE );
1350 }
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