2 * Window classes functions
4 * Copyright 1993, 1996, 2003 Alexandre Julliard
5 * Copyright 1998 Juergen Schmied (jsch)
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.
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.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #include "wine/port.h"
34 #include "wine/winuser16.h"
35 #include "wine/unicode.h"
37 #include "user_private.h"
40 #include "wine/server.h"
41 #include "wine/list.h"
42 #include "wine/debug.h"
44 WINE_DEFAULT_DEBUG_CHANNEL(class);
46 typedef struct tagCLASS
48 struct list entry; /* Entry in class list */
49 UINT style; /* Class style */
50 BOOL local; /* Local class? */
51 WNDPROC winprocA; /* Window procedure (ASCII) */
52 WNDPROC winprocW; /* Window procedure (Unicode) */
53 INT cbClsExtra; /* Class extra bytes */
54 INT cbWndExtra; /* Window extra bytes */
55 LPWSTR menuName; /* Default menu name (Unicode followed by ASCII) */
56 SEGPTR segMenuName; /* Default menu name as SEGPTR */
57 HINSTANCE hInstance; /* Module that created the task */
58 HICON hIcon; /* Default icon */
59 HICON hIconSm; /* Default small icon */
60 HCURSOR hCursor; /* Default cursor */
61 HBRUSH hbrBackground; /* Default background */
62 ATOM atomName; /* Name of the class */
65 static struct list class_list = LIST_INIT( class_list );
67 #define CLASS_OTHER_PROCESS ((CLASS *)1)
69 /***********************************************************************
72 static CLASS *get_class_ptr( HWND hwnd, BOOL write_access )
74 WND *ptr = WIN_GetPtr( hwnd );
78 if (ptr != WND_OTHER_PROCESS && ptr != WND_DESKTOP) return ptr->class;
80 if (write_access && (ptr == WND_DESKTOP || IsWindow( hwnd ))) /* check other processes */
82 /* modifying classes in other processes is not allowed */
83 SetLastError( ERROR_ACCESS_DENIED );
86 return CLASS_OTHER_PROCESS;
88 SetLastError( ERROR_INVALID_WINDOW_HANDLE );
93 /***********************************************************************
96 inline static void release_class_ptr( CLASS *ptr )
102 /***********************************************************************
105 * Set class info with the wine server.
107 static BOOL set_server_info( HWND hwnd, INT offset, LONG newval )
111 SERVER_START_REQ( set_class_info )
114 req->extra_offset = -1;
118 req->flags = SET_CLASS_ATOM;
121 req->flags = SET_CLASS_STYLE;
125 req->flags = SET_CLASS_WINEXTRA;
126 req->win_extra = newval;
129 req->flags = SET_CLASS_INSTANCE;
130 req->instance = (void *)newval;
133 assert( offset >= 0 );
134 req->flags = SET_CLASS_EXTRA;
135 req->extra_offset = offset;
136 req->extra_size = sizeof(newval);
137 memcpy( &req->extra_value, &newval, sizeof(newval) );
140 ret = !wine_server_call_err( req );
147 /***********************************************************************
150 * Get the class winproc for a given proc type
152 static WNDPROC16 CLASS_GetProc( CLASS *classPtr, WINDOWPROCTYPE type )
154 WNDPROC proc = classPtr->winprocA;
156 if (classPtr->winprocW)
158 /* if we have a Unicode proc, use it if we have no ASCII proc
159 * or if we have both and Unicode was requested
161 if (!proc || type == WIN_PROC_32W) proc = classPtr->winprocW;
163 return WINPROC_GetProc( proc, type );
167 /***********************************************************************
170 * Set the class winproc for a given proc type.
171 * Returns the previous window proc.
173 static WNDPROC16 CLASS_SetProc( CLASS *classPtr, WNDPROC newproc, WINDOWPROCTYPE type )
175 WNDPROC *proc = &classPtr->winprocA;
178 if (classPtr->winprocW)
180 /* if we have a Unicode proc, use it if we have no ASCII proc
181 * or if we have both and Unicode was requested
183 if (!*proc || type == WIN_PROC_32W) proc = &classPtr->winprocW;
185 ret = WINPROC_GetProc( *proc, type );
186 *proc = WINPROC_AllocProc( newproc, type );
187 /* now clear the one that we didn't set */
188 if (classPtr->winprocA && classPtr->winprocW)
190 if (proc == &classPtr->winprocA)
191 classPtr->winprocW = 0;
193 classPtr->winprocA = 0;
199 /***********************************************************************
202 * Get the menu name as a ASCII string.
204 inline static LPSTR CLASS_GetMenuNameA( CLASS *classPtr )
206 if (!HIWORD(classPtr->menuName)) return (LPSTR)classPtr->menuName;
207 return (LPSTR)(classPtr->menuName + strlenW(classPtr->menuName) + 1);
211 /***********************************************************************
212 * CLASS_GetMenuName16
214 * Get the menu name as a SEGPTR.
216 inline static SEGPTR CLASS_GetMenuName16( CLASS *classPtr )
218 if (!HIWORD(classPtr->menuName)) return (SEGPTR)classPtr->menuName;
219 if (!classPtr->segMenuName)
220 classPtr->segMenuName = MapLS( CLASS_GetMenuNameA(classPtr) );
221 return classPtr->segMenuName;
225 /***********************************************************************
228 * Get the menu name as a Unicode string.
230 inline static LPWSTR CLASS_GetMenuNameW( CLASS *classPtr )
232 return classPtr->menuName;
236 /***********************************************************************
239 * Set the menu name in a class structure by copying the string.
241 static void CLASS_SetMenuNameA( CLASS *classPtr, LPCSTR name )
243 UnMapLS( classPtr->segMenuName );
244 classPtr->segMenuName = 0;
245 if (HIWORD(classPtr->menuName)) HeapFree( GetProcessHeap(), 0, classPtr->menuName );
248 DWORD lenA = strlen(name) + 1;
249 DWORD lenW = MultiByteToWideChar( CP_ACP, 0, name, lenA, NULL, 0 );
250 classPtr->menuName = HeapAlloc( GetProcessHeap(), 0, lenA + lenW*sizeof(WCHAR) );
251 MultiByteToWideChar( CP_ACP, 0, name, lenA, classPtr->menuName, lenW );
252 memcpy( classPtr->menuName + lenW, name, lenA );
254 else classPtr->menuName = (LPWSTR)name;
258 /***********************************************************************
261 * Set the menu name in a class structure by copying the string.
263 static void CLASS_SetMenuNameW( CLASS *classPtr, LPCWSTR name )
265 UnMapLS( classPtr->segMenuName );
266 classPtr->segMenuName = 0;
267 if (HIWORD(classPtr->menuName)) HeapFree( GetProcessHeap(), 0, classPtr->menuName );
270 DWORD lenW = strlenW(name) + 1;
271 DWORD lenA = WideCharToMultiByte( CP_ACP, 0, name, lenW, NULL, 0, NULL, NULL );
272 classPtr->menuName = HeapAlloc( GetProcessHeap(), 0, lenA + lenW*sizeof(WCHAR) );
273 memcpy( classPtr->menuName, name, lenW*sizeof(WCHAR) );
274 WideCharToMultiByte( CP_ACP, 0, name, lenW,
275 (char *)(classPtr->menuName + lenW), lenA, NULL, NULL );
277 else classPtr->menuName = (LPWSTR)name;
281 /***********************************************************************
284 * Free a class structure.
286 static void CLASS_FreeClass( CLASS *classPtr )
288 TRACE("%p\n", classPtr);
292 list_remove( &classPtr->entry );
293 if (classPtr->hbrBackground > (HBRUSH)(COLOR_GRADIENTINACTIVECAPTION + 1))
294 DeleteObject( classPtr->hbrBackground );
295 UnMapLS( classPtr->segMenuName );
296 HeapFree( GetProcessHeap(), 0, classPtr->menuName );
297 HeapFree( GetProcessHeap(), 0, classPtr );
302 /***********************************************************************
303 * CLASS_FreeModuleClasses
305 void CLASS_FreeModuleClasses( HMODULE16 hModule )
307 struct list *ptr, *next;
309 TRACE("0x%08x\n", hModule);
312 for (ptr = list_head( &class_list ); ptr; ptr = next)
314 CLASS *class = LIST_ENTRY( ptr, CLASS, entry );
315 next = list_next( &class_list, ptr );
316 if (class->hInstance == HINSTANCE_32(hModule))
320 SERVER_START_REQ( destroy_class )
322 req->atom = class->atomName;
323 req->instance = class->hInstance;
324 ret = !wine_server_call_err( req );
327 if (ret) CLASS_FreeClass( class );
334 /***********************************************************************
335 * CLASS_FindClassByAtom
337 * Return a pointer to the class.
338 * hinstance has been normalized by the caller.
340 static CLASS *CLASS_FindClassByAtom( ATOM atom, HINSTANCE hinstance )
346 LIST_FOR_EACH( ptr, &class_list )
348 CLASS *class = LIST_ENTRY( ptr, CLASS, entry );
349 if (class->atomName != atom) continue;
350 if (!hinstance || !class->local || class->hInstance == hinstance)
352 TRACE("0x%04x %p -> %p\n", atom, hinstance, class);
357 TRACE("0x%04x %p -> not found\n", atom, hinstance);
362 /***********************************************************************
363 * CLASS_RegisterClass
365 * The real RegisterClass() functionality.
366 * The atom is deleted no matter what.
368 static CLASS *CLASS_RegisterClass( ATOM atom, HINSTANCE hInstance, BOOL local,
369 DWORD style, INT classExtra, INT winExtra )
374 TRACE("atom=0x%x hinst=%p style=0x%lx clExtr=0x%x winExtr=0x%x\n",
375 atom, hInstance, style, classExtra, winExtra );
377 /* Fix the extra bytes value */
379 if (classExtra < 0 || winExtra < 0)
381 SetLastError( ERROR_INVALID_PARAMETER );
384 if (classExtra > 40) /* Extra bytes are limited to 40 in Win32 */
385 WARN("Class extra bytes %d is > 40\n", classExtra);
386 if (winExtra > 40) /* Extra bytes are limited to 40 in Win32 */
387 WARN("Win extra bytes %d is > 40\n", winExtra );
389 classPtr = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(CLASS) + classExtra );
392 GlobalDeleteAtom( atom );
396 SERVER_START_REQ( create_class )
401 req->instance = hInstance;
402 req->extra = classExtra;
403 req->win_extra = winExtra;
404 req->client_ptr = classPtr;
405 ret = !wine_server_call_err( req );
408 GlobalDeleteAtom( atom ); /* the server increased the atom ref count */
411 HeapFree( GetProcessHeap(), 0, classPtr );
415 classPtr->style = style;
416 classPtr->local = local;
417 classPtr->cbWndExtra = winExtra;
418 classPtr->cbClsExtra = classExtra;
419 classPtr->hInstance = hInstance;
420 classPtr->atomName = atom;
422 /* Other non-null values must be set by caller */
425 if (local) list_add_head( &class_list, &classPtr->entry );
426 else list_add_tail( &class_list, &classPtr->entry );
431 /***********************************************************************
434 * Register a builtin control class.
435 * This allows having both ASCII and Unicode winprocs for the same class.
437 static CLASS *register_builtin( const struct builtin_class_descr *descr )
442 if (!(atom = GlobalAddAtomA( descr->name ))) return 0;
444 if (!(classPtr = CLASS_RegisterClass( atom, user32_module, FALSE,
445 descr->style, 0, descr->extra ))) return 0;
447 classPtr->hCursor = LoadCursorA( 0, (LPSTR)descr->cursor );
448 classPtr->hbrBackground = descr->brush;
450 if (descr->procA) classPtr->winprocA = WINPROC_AllocProc( descr->procA, WIN_PROC_32A );
451 if (descr->procW) classPtr->winprocW = WINPROC_AllocProc( descr->procW, WIN_PROC_32W );
452 release_class_ptr( classPtr );
457 /***********************************************************************
458 * CLASS_RegisterBuiltinClasses
460 void CLASS_RegisterBuiltinClasses(void)
462 extern const struct builtin_class_descr BUTTON_builtin_class;
463 extern const struct builtin_class_descr COMBO_builtin_class;
464 extern const struct builtin_class_descr COMBOLBOX_builtin_class;
465 extern const struct builtin_class_descr DIALOG_builtin_class;
466 extern const struct builtin_class_descr DESKTOP_builtin_class;
467 extern const struct builtin_class_descr EDIT_builtin_class;
468 extern const struct builtin_class_descr ICONTITLE_builtin_class;
469 extern const struct builtin_class_descr LISTBOX_builtin_class;
470 extern const struct builtin_class_descr MDICLIENT_builtin_class;
471 extern const struct builtin_class_descr MENU_builtin_class;
472 extern const struct builtin_class_descr SCROLL_builtin_class;
473 extern const struct builtin_class_descr STATIC_builtin_class;
475 register_builtin( &DESKTOP_builtin_class );
476 register_builtin( &BUTTON_builtin_class );
477 register_builtin( &COMBO_builtin_class );
478 register_builtin( &COMBOLBOX_builtin_class );
479 register_builtin( &DIALOG_builtin_class );
480 register_builtin( &EDIT_builtin_class );
481 register_builtin( &ICONTITLE_builtin_class );
482 register_builtin( &LISTBOX_builtin_class );
483 register_builtin( &MDICLIENT_builtin_class );
484 register_builtin( &MENU_builtin_class );
485 register_builtin( &SCROLL_builtin_class );
486 register_builtin( &STATIC_builtin_class );
490 /***********************************************************************
493 * Add a new window using this class, and set the necessary
494 * information inside the window structure.
496 void CLASS_AddWindow( CLASS *class, WND *win, WINDOWPROCTYPE type )
498 if (type == WIN_PROC_32W)
500 if (!(win->winproc = class->winprocW)) win->winproc = class->winprocA;
504 if (!(win->winproc = class->winprocA)) win->winproc = class->winprocW;
507 win->clsStyle = class->style;
511 /***********************************************************************
512 * RegisterClassA (USER32.@)
514 * Register a window class.
517 * >0: Unique identifier
520 ATOM WINAPI RegisterClassA( const WNDCLASSA* wc ) /* [in] Address of structure with class data */
524 wcex.cbSize = sizeof(wcex);
525 wcex.style = wc->style;
526 wcex.lpfnWndProc = wc->lpfnWndProc;
527 wcex.cbClsExtra = wc->cbClsExtra;
528 wcex.cbWndExtra = wc->cbWndExtra;
529 wcex.hInstance = wc->hInstance;
530 wcex.hIcon = wc->hIcon;
531 wcex.hCursor = wc->hCursor;
532 wcex.hbrBackground = wc->hbrBackground;
533 wcex.lpszMenuName = wc->lpszMenuName;
534 wcex.lpszClassName = wc->lpszClassName;
536 return RegisterClassExA( &wcex );
540 /***********************************************************************
541 * RegisterClassW (USER32.@)
543 * See RegisterClassA.
545 ATOM WINAPI RegisterClassW( const WNDCLASSW* wc )
549 wcex.cbSize = sizeof(wcex);
550 wcex.style = wc->style;
551 wcex.lpfnWndProc = wc->lpfnWndProc;
552 wcex.cbClsExtra = wc->cbClsExtra;
553 wcex.cbWndExtra = wc->cbWndExtra;
554 wcex.hInstance = wc->hInstance;
555 wcex.hIcon = wc->hIcon;
556 wcex.hCursor = wc->hCursor;
557 wcex.hbrBackground = wc->hbrBackground;
558 wcex.lpszMenuName = wc->lpszMenuName;
559 wcex.lpszClassName = wc->lpszClassName;
561 return RegisterClassExW( &wcex );
565 /***********************************************************************
566 * RegisterClassExA (USER32.@)
568 ATOM WINAPI RegisterClassExA( const WNDCLASSEXA* wc )
574 if (wc->hInstance == user32_module)
576 /* we can't register a class for user32 */
577 SetLastError( ERROR_INVALID_PARAMETER );
580 if (!(instance = wc->hInstance)) instance = GetModuleHandleW( NULL );
582 if (!(atom = GlobalAddAtomA( wc->lpszClassName ))) return 0;
584 if (!(classPtr = CLASS_RegisterClass( atom, instance, !(wc->style & CS_GLOBALCLASS),
585 wc->style, wc->cbClsExtra, wc->cbWndExtra )))
588 TRACE("atom=%04x wndproc=%p hinst=%p bg=%p style=%08x clsExt=%d winExt=%d class=%p\n",
589 atom, wc->lpfnWndProc, instance, wc->hbrBackground,
590 wc->style, wc->cbClsExtra, wc->cbWndExtra, classPtr );
592 classPtr->hIcon = wc->hIcon;
593 classPtr->hIconSm = wc->hIconSm;
594 classPtr->hCursor = wc->hCursor;
595 classPtr->hbrBackground = wc->hbrBackground;
596 classPtr->winprocA = WINPROC_AllocProc( wc->lpfnWndProc, WIN_PROC_32A );
597 CLASS_SetMenuNameA( classPtr, wc->lpszMenuName );
598 release_class_ptr( classPtr );
603 /***********************************************************************
604 * RegisterClassExW (USER32.@)
606 ATOM WINAPI RegisterClassExW( const WNDCLASSEXW* wc )
612 if (wc->hInstance == user32_module)
614 /* we can't register a class for user32 */
615 SetLastError( ERROR_INVALID_PARAMETER );
618 if (!(instance = wc->hInstance)) instance = GetModuleHandleW( NULL );
620 if (!(atom = GlobalAddAtomW( wc->lpszClassName ))) return 0;
622 if (!(classPtr = CLASS_RegisterClass( atom, instance, !(wc->style & CS_GLOBALCLASS),
623 wc->style, wc->cbClsExtra, wc->cbWndExtra )))
626 TRACE("atom=%04x wndproc=%p hinst=%p bg=%p style=%08x clsExt=%d winExt=%d class=%p\n",
627 atom, wc->lpfnWndProc, instance, wc->hbrBackground,
628 wc->style, wc->cbClsExtra, wc->cbWndExtra, classPtr );
630 classPtr->hIcon = wc->hIcon;
631 classPtr->hIconSm = wc->hIconSm;
632 classPtr->hCursor = wc->hCursor;
633 classPtr->hbrBackground = wc->hbrBackground;
634 classPtr->winprocW = WINPROC_AllocProc( wc->lpfnWndProc, WIN_PROC_32W );
635 CLASS_SetMenuNameW( classPtr, wc->lpszMenuName );
636 release_class_ptr( classPtr );
641 /***********************************************************************
642 * UnregisterClassA (USER32.@)
644 BOOL WINAPI UnregisterClassA( LPCSTR className, HINSTANCE hInstance )
646 ATOM atom = HIWORD(className) ? GlobalFindAtomA( className ) : LOWORD(className);
647 return UnregisterClassW( MAKEINTATOMW(atom), hInstance );
650 /***********************************************************************
651 * UnregisterClassW (USER32.@)
653 BOOL WINAPI UnregisterClassW( LPCWSTR className, HINSTANCE hInstance )
655 CLASS *classPtr = NULL;
656 ATOM atom = HIWORD(className) ? GlobalFindAtomW( className ) : LOWORD(className);
658 TRACE("%s %p %x\n",debugstr_w(className), hInstance, atom);
662 SetLastError( ERROR_CLASS_DOES_NOT_EXIST );
666 SERVER_START_REQ( destroy_class )
669 req->instance = hInstance;
670 if (!wine_server_call_err( req )) classPtr = reply->client_ptr;
674 if (classPtr) CLASS_FreeClass( classPtr );
675 return (classPtr != NULL);
679 /***********************************************************************
680 * GetClassWord (USER32.@)
682 WORD WINAPI GetClassWord( HWND hwnd, INT offset )
687 if (offset < 0) return GetClassLongA( hwnd, offset );
689 TRACE("%p %x\n",hwnd, offset);
691 if (!(class = get_class_ptr( hwnd, FALSE ))) return 0;
693 if (class == CLASS_OTHER_PROCESS)
695 SERVER_START_REQ( set_class_info )
699 req->extra_offset = offset;
700 req->extra_size = sizeof(retvalue);
701 if (!wine_server_call_err( req ))
702 memcpy( &retvalue, &reply->old_extra_value, sizeof(retvalue) );
708 if (offset <= class->cbClsExtra - sizeof(WORD))
709 memcpy( &retvalue, (char *)(class + 1) + offset, sizeof(retvalue) );
711 SetLastError( ERROR_INVALID_INDEX );
712 release_class_ptr( class );
717 /***********************************************************************
718 * GetClassLong (USER.131)
720 LONG WINAPI GetClassLong16( HWND16 hwnd16, INT16 offset )
724 HWND hwnd = (HWND)(ULONG_PTR)hwnd16; /* no need for full handle */
726 TRACE("%p %d\n",hwnd, offset);
731 if (!(class = get_class_ptr( hwnd, FALSE ))) return 0;
732 if (class == CLASS_OTHER_PROCESS) break;
733 ret = (LONG)CLASS_GetProc( class, WIN_PROC_16 );
734 release_class_ptr( class );
737 if (!(class = get_class_ptr( hwnd, FALSE ))) return 0;
738 if (class == CLASS_OTHER_PROCESS) break;
739 ret = (LONG)CLASS_GetMenuName16( class );
740 release_class_ptr( class );
743 return GetClassLongA( hwnd, offset );
745 FIXME( "offset %d not supported on other process window %p\n", offset, hwnd );
746 SetLastError( ERROR_INVALID_HANDLE );
751 /***********************************************************************
752 * GetClassLongW (USER32.@)
754 DWORD WINAPI GetClassLongW( HWND hwnd, INT offset )
759 TRACE("%p %d\n", hwnd, offset);
761 if (!(class = get_class_ptr( hwnd, FALSE ))) return 0;
763 if (class == CLASS_OTHER_PROCESS)
765 SERVER_START_REQ( set_class_info )
769 req->extra_offset = (offset >= 0) ? offset : -1;
770 req->extra_size = (offset >= 0) ? sizeof(retvalue) : 0;
771 if (!wine_server_call_err( req ))
775 case GCLP_HBRBACKGROUND:
781 FIXME( "offset %d not supported on other process window %p\n", offset, hwnd );
782 SetLastError( ERROR_INVALID_HANDLE );
785 retvalue = reply->old_style;
788 retvalue = reply->old_win_extra;
791 retvalue = reply->old_extra;
794 retvalue = (DWORD)reply->old_instance;
797 retvalue = reply->old_atom;
800 if (offset >= 0) memcpy( &retvalue, &reply->old_extra_value, sizeof(retvalue) );
801 else SetLastError( ERROR_INVALID_INDEX );
812 if (offset <= class->cbClsExtra - sizeof(LONG))
813 memcpy( &retvalue, (char *)(class + 1) + offset, sizeof(retvalue) );
815 SetLastError( ERROR_INVALID_INDEX );
816 release_class_ptr( class );
822 case GCLP_HBRBACKGROUND:
823 retvalue = (DWORD)class->hbrBackground;
826 retvalue = (DWORD)class->hCursor;
829 retvalue = (DWORD)class->hIcon;
832 retvalue = (DWORD)class->hIconSm;
835 retvalue = (DWORD)class->style;
838 retvalue = (DWORD)class->cbWndExtra;
841 retvalue = (DWORD)class->cbClsExtra;
844 retvalue = (DWORD)class->hInstance;
847 retvalue = (DWORD)CLASS_GetProc( class, WIN_PROC_32W );
850 retvalue = (DWORD)CLASS_GetMenuNameW( class );
853 retvalue = (DWORD)class->atomName;
856 SetLastError( ERROR_INVALID_INDEX );
859 release_class_ptr( class );
864 /***********************************************************************
865 * GetClassLongA (USER32.@)
867 DWORD WINAPI GetClassLongA( HWND hwnd, INT offset )
872 if (offset != GCLP_WNDPROC && offset != GCLP_MENUNAME)
873 return GetClassLongW( hwnd, offset );
875 TRACE("%p %d\n", hwnd, offset);
877 if (!(class = get_class_ptr( hwnd, FALSE ))) return 0;
879 if (class == CLASS_OTHER_PROCESS)
881 FIXME( "offset %d not supported on other process window %p\n", offset, hwnd );
882 SetLastError( ERROR_INVALID_HANDLE );
886 if (offset == GCLP_WNDPROC)
887 retvalue = (DWORD)CLASS_GetProc( class, WIN_PROC_32A );
888 else /* GCL_MENUNAME */
889 retvalue = (DWORD)CLASS_GetMenuNameA( class );
891 release_class_ptr( class );
896 /***********************************************************************
897 * SetClassWord (USER32.@)
899 WORD WINAPI SetClassWord( HWND hwnd, INT offset, WORD newval )
904 if (offset < 0) return SetClassLongA( hwnd, offset, (DWORD)newval );
906 TRACE("%p %d %x\n", hwnd, offset, newval);
908 if (!(class = get_class_ptr( hwnd, TRUE ))) return 0;
910 SERVER_START_REQ( set_class_info )
913 req->flags = SET_CLASS_EXTRA;
914 req->extra_offset = offset;
915 req->extra_size = sizeof(newval);
916 memcpy( &req->extra_value, &newval, sizeof(newval) );
917 if (!wine_server_call_err( req ))
919 void *ptr = (char *)(class + 1) + offset;
920 memcpy( &retval, ptr, sizeof(retval) );
921 memcpy( ptr, &newval, sizeof(newval) );
925 release_class_ptr( class );
930 /***********************************************************************
931 * SetClassLong (USER.132)
933 LONG WINAPI SetClassLong16( HWND16 hwnd16, INT16 offset, LONG newval )
937 HWND hwnd = (HWND)(ULONG_PTR)hwnd16; /* no need for full handle */
939 TRACE("%p %d %lx\n", hwnd, offset, newval);
944 if (!(class = get_class_ptr( hwnd, TRUE ))) return 0;
945 retval = (LONG)CLASS_SetProc( class, (WNDPROC)newval, WIN_PROC_16 );
946 release_class_ptr( class );
949 newval = (LONG)MapSL( newval );
952 return SetClassLongA( hwnd, offset, newval );
957 /***********************************************************************
958 * SetClassLongW (USER32.@)
960 DWORD WINAPI SetClassLongW( HWND hwnd, INT offset, LONG newval )
965 TRACE("%p %d %lx\n", hwnd, offset, newval);
967 if (!(class = get_class_ptr( hwnd, TRUE ))) return 0;
971 if (set_server_info( hwnd, offset, newval ))
973 void *ptr = (char *)(class + 1) + offset;
974 memcpy( &retval, ptr, sizeof(retval) );
975 memcpy( ptr, &newval, sizeof(newval) );
981 CLASS_SetMenuNameW( class, (LPCWSTR)newval );
982 retval = 0; /* Old value is now meaningless anyway */
985 retval = (DWORD)CLASS_SetProc( class, (WNDPROC)newval, WIN_PROC_32W );
987 case GCLP_HBRBACKGROUND:
988 retval = (DWORD)class->hbrBackground;
989 class->hbrBackground = (HBRUSH)newval;
992 retval = (DWORD)class->hCursor;
993 class->hCursor = (HCURSOR)newval;
996 retval = (DWORD)class->hIcon;
997 class->hIcon = (HICON)newval;
1000 retval = (DWORD)class->hIconSm;
1001 class->hIconSm = (HICON)newval;
1004 if (!set_server_info( hwnd, offset, newval )) break;
1005 retval = (DWORD)class->style;
1006 class->style = newval;
1008 case GCL_CBWNDEXTRA:
1009 if (!set_server_info( hwnd, offset, newval )) break;
1010 retval = (DWORD)class->cbWndExtra;
1011 class->cbWndExtra = newval;
1014 if (!set_server_info( hwnd, offset, newval )) break;
1015 retval = (DWORD)class->hInstance;
1016 class->hInstance = (HINSTANCE)newval;
1019 if (!set_server_info( hwnd, offset, newval )) break;
1020 retval = (DWORD)class->atomName;
1021 class->atomName = newval;
1023 case GCL_CBCLSEXTRA: /* cannot change this one */
1024 SetLastError( ERROR_INVALID_PARAMETER );
1027 SetLastError( ERROR_INVALID_INDEX );
1030 release_class_ptr( class );
1035 /***********************************************************************
1036 * SetClassLongA (USER32.@)
1038 DWORD WINAPI SetClassLongA( HWND hwnd, INT offset, LONG newval )
1043 if (offset != GCLP_WNDPROC && offset != GCLP_MENUNAME)
1044 return SetClassLongW( hwnd, offset, newval );
1046 TRACE("%p %d %lx\n", hwnd, offset, newval);
1048 if (!(class = get_class_ptr( hwnd, TRUE ))) return 0;
1050 if (offset == GCLP_WNDPROC)
1051 retval = (DWORD)CLASS_SetProc( class, (WNDPROC)newval, WIN_PROC_32A );
1052 else /* GCL_MENUNAME */
1054 CLASS_SetMenuNameA( class, (LPCSTR)newval );
1055 retval = 0; /* Old value is now meaningless anyway */
1057 release_class_ptr( class );
1062 /***********************************************************************
1063 * GetClassNameA (USER32.@)
1065 INT WINAPI GetClassNameA( HWND hwnd, LPSTR buffer, INT count )
1067 INT ret = GlobalGetAtomNameA( GetClassLongA( hwnd, GCW_ATOM ), buffer, count );
1069 TRACE("%p %s %x\n",hwnd, debugstr_a(buffer), count);
1074 /***********************************************************************
1075 * GetClassNameW (USER32.@)
1077 INT WINAPI GetClassNameW( HWND hwnd, LPWSTR buffer, INT count )
1079 INT ret = GlobalGetAtomNameW( GetClassLongW( hwnd, GCW_ATOM ), buffer, count );
1081 TRACE("%p %s %x\n",hwnd, debugstr_w(buffer), count);
1086 /***********************************************************************
1087 * RealGetWindowClassA (USER32.@)
1089 UINT WINAPI RealGetWindowClassA( HWND hwnd, LPSTR buffer, UINT count )
1091 return GetClassNameA( hwnd, buffer, count );
1095 /***********************************************************************
1096 * RealGetWindowClassW (USER32.@)
1098 UINT WINAPI RealGetWindowClassW( HWND hwnd, LPWSTR buffer, UINT count )
1100 return GetClassNameW( hwnd, buffer, count );
1104 /***********************************************************************
1105 * GetClassInfoA (USER32.@)
1107 BOOL WINAPI GetClassInfoA( HINSTANCE hInstance, LPCSTR name, WNDCLASSA *wc )
1110 UINT ret = GetClassInfoExA( hInstance, name, &wcex );
1114 wc->style = wcex.style;
1115 wc->lpfnWndProc = wcex.lpfnWndProc;
1116 wc->cbClsExtra = wcex.cbClsExtra;
1117 wc->cbWndExtra = wcex.cbWndExtra;
1118 wc->hInstance = wcex.hInstance;
1119 wc->hIcon = wcex.hIcon;
1120 wc->hCursor = wcex.hCursor;
1121 wc->hbrBackground = wcex.hbrBackground;
1122 wc->lpszMenuName = wcex.lpszMenuName;
1123 wc->lpszClassName = wcex.lpszClassName;
1129 /***********************************************************************
1130 * GetClassInfoW (USER32.@)
1132 BOOL WINAPI GetClassInfoW( HINSTANCE hInstance, LPCWSTR name, WNDCLASSW *wc )
1135 UINT ret = GetClassInfoExW( hInstance, name, &wcex );
1139 wc->style = wcex.style;
1140 wc->lpfnWndProc = wcex.lpfnWndProc;
1141 wc->cbClsExtra = wcex.cbClsExtra;
1142 wc->cbWndExtra = wcex.cbWndExtra;
1143 wc->hInstance = wcex.hInstance;
1144 wc->hIcon = wcex.hIcon;
1145 wc->hCursor = wcex.hCursor;
1146 wc->hbrBackground = wcex.hbrBackground;
1147 wc->lpszMenuName = wcex.lpszMenuName;
1148 wc->lpszClassName = wcex.lpszClassName;
1154 /***********************************************************************
1155 * GetClassInfoExA (USER32.@)
1157 BOOL WINAPI GetClassInfoExA( HINSTANCE hInstance, LPCSTR name, WNDCLASSEXA *wc )
1159 ATOM atom = HIWORD(name) ? GlobalFindAtomA( name ) : LOWORD(name);
1162 TRACE("%p %s %x %p\n", hInstance, debugstr_a(name), atom, wc);
1164 if (!hInstance) hInstance = user32_module;
1166 if (!atom || !(classPtr = CLASS_FindClassByAtom( atom, hInstance )))
1168 SetLastError( ERROR_CLASS_DOES_NOT_EXIST );
1171 wc->style = classPtr->style;
1172 wc->lpfnWndProc = (WNDPROC)CLASS_GetProc( classPtr, WIN_PROC_32A );
1173 wc->cbClsExtra = classPtr->cbClsExtra;
1174 wc->cbWndExtra = classPtr->cbWndExtra;
1175 wc->hInstance = (hInstance == user32_module) ? 0 : hInstance;
1176 wc->hIcon = (HICON)classPtr->hIcon;
1177 wc->hIconSm = (HICON)classPtr->hIconSm;
1178 wc->hCursor = (HCURSOR)classPtr->hCursor;
1179 wc->hbrBackground = (HBRUSH)classPtr->hbrBackground;
1180 wc->lpszMenuName = CLASS_GetMenuNameA( classPtr );
1181 wc->lpszClassName = name;
1182 release_class_ptr( classPtr );
1184 /* We must return the atom of the class here instead of just TRUE. */
1189 /***********************************************************************
1190 * GetClassInfoExW (USER32.@)
1192 BOOL WINAPI GetClassInfoExW( HINSTANCE hInstance, LPCWSTR name, WNDCLASSEXW *wc )
1194 ATOM atom = HIWORD(name) ? GlobalFindAtomW( name ) : LOWORD(name);
1197 TRACE("%p %s %x %p\n", hInstance, debugstr_w(name), atom, wc);
1199 if (!hInstance) hInstance = user32_module;
1201 if (!atom || !(classPtr = CLASS_FindClassByAtom( atom, hInstance )))
1203 SetLastError( ERROR_CLASS_DOES_NOT_EXIST );
1206 wc->style = classPtr->style;
1207 wc->lpfnWndProc = (WNDPROC)CLASS_GetProc( classPtr, WIN_PROC_32W );
1208 wc->cbClsExtra = classPtr->cbClsExtra;
1209 wc->cbWndExtra = classPtr->cbWndExtra;
1210 wc->hInstance = (hInstance == user32_module) ? 0 : hInstance;
1211 wc->hIcon = (HICON)classPtr->hIcon;
1212 wc->hIconSm = (HICON)classPtr->hIconSm;
1213 wc->hCursor = (HCURSOR)classPtr->hCursor;
1214 wc->hbrBackground = (HBRUSH)classPtr->hbrBackground;
1215 wc->lpszMenuName = CLASS_GetMenuNameW( classPtr );
1216 wc->lpszClassName = name;
1217 release_class_ptr( classPtr );
1219 /* We must return the atom of the class here instead of just TRUE. */
1224 #if 0 /* toolhelp is in kernel, so this cannot work */
1226 /***********************************************************************
1227 * ClassFirst (TOOLHELP.69)
1229 BOOL16 WINAPI ClassFirst16( CLASSENTRY *pClassEntry )
1231 TRACE("%p\n",pClassEntry);
1232 pClassEntry->wNext = 1;
1233 return ClassNext16( pClassEntry );
1237 /***********************************************************************
1238 * ClassNext (TOOLHELP.70)
1240 BOOL16 WINAPI ClassNext16( CLASSENTRY *pClassEntry )
1243 CLASS *class = firstClass;
1245 TRACE("%p\n",pClassEntry);
1247 if (!pClassEntry->wNext) return FALSE;
1248 for (i = 1; (i < pClassEntry->wNext) && class; i++) class = class->next;
1251 pClassEntry->wNext = 0;
1254 pClassEntry->hInst = class->hInstance;
1255 pClassEntry->wNext++;
1256 GlobalGetAtomNameA( class->atomName, pClassEntry->szClassName,
1257 sizeof(pClassEntry->szClassName) );