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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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 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 HINSTANCE hInstance
; /* Module that created the task */
56 HICON hIcon
; /* Default icon */
57 HICON hIconSm
; /* Default small icon */
58 HCURSOR hCursor
; /* Default cursor */
59 HBRUSH hbrBackground
; /* Default background */
60 ATOM atomName
; /* Name of the class */
63 static struct list class_list
= LIST_INIT( class_list
);
65 #define CLASS_OTHER_PROCESS ((CLASS *)1)
67 /***********************************************************************
70 static CLASS
*get_class_ptr( HWND hwnd
, BOOL write_access
)
72 WND
*ptr
= WIN_GetPtr( hwnd
);
76 if (ptr
!= WND_OTHER_PROCESS
&& ptr
!= WND_DESKTOP
) return ptr
->class;
77 if (!write_access
) return CLASS_OTHER_PROCESS
;
79 /* modifying classes in other processes is not allowed */
80 if (ptr
== WND_DESKTOP
|| IsWindow( hwnd
))
82 SetLastError( ERROR_ACCESS_DENIED
);
86 SetLastError( ERROR_INVALID_WINDOW_HANDLE
);
91 /***********************************************************************
94 inline static void release_class_ptr( CLASS
*ptr
)
100 /***********************************************************************
103 * Set class info with the wine server.
105 static BOOL
set_server_info( HWND hwnd
, INT offset
, LONG_PTR newval
, UINT size
)
109 SERVER_START_REQ( set_class_info
)
112 req
->extra_offset
= -1;
116 req
->flags
= SET_CLASS_ATOM
;
119 req
->flags
= SET_CLASS_STYLE
;
123 req
->flags
= SET_CLASS_WINEXTRA
;
124 req
->win_extra
= newval
;
127 req
->flags
= SET_CLASS_INSTANCE
;
128 req
->instance
= (void *)newval
;
131 assert( offset
>= 0 );
132 req
->flags
= SET_CLASS_EXTRA
;
133 req
->extra_offset
= offset
;
134 req
->extra_size
= size
;
135 if ( size
== sizeof(LONG
) )
137 LONG newlong
= newval
;
138 memcpy( &req
->extra_value
, &newlong
, sizeof(LONG
) );
141 memcpy( &req
->extra_value
, &newval
, sizeof(LONG_PTR
) );
144 ret
= !wine_server_call_err( req
);
151 /***********************************************************************
154 * Get the menu name as a ASCII string.
156 inline static LPSTR
CLASS_GetMenuNameA( CLASS
*classPtr
)
158 if (!HIWORD(classPtr
->menuName
)) return (LPSTR
)classPtr
->menuName
;
159 return (LPSTR
)(classPtr
->menuName
+ strlenW(classPtr
->menuName
) + 1);
163 /***********************************************************************
166 * Get the menu name as a Unicode string.
168 inline static LPWSTR
CLASS_GetMenuNameW( CLASS
*classPtr
)
170 return classPtr
->menuName
;
174 /***********************************************************************
177 * Set the menu name in a class structure by copying the string.
179 static void CLASS_SetMenuNameA( CLASS
*classPtr
, LPCSTR name
)
181 if (HIWORD(classPtr
->menuName
)) HeapFree( GetProcessHeap(), 0, classPtr
->menuName
);
184 DWORD lenA
= strlen(name
) + 1;
185 DWORD lenW
= MultiByteToWideChar( CP_ACP
, 0, name
, lenA
, NULL
, 0 );
186 classPtr
->menuName
= HeapAlloc( GetProcessHeap(), 0, lenA
+ lenW
*sizeof(WCHAR
) );
187 MultiByteToWideChar( CP_ACP
, 0, name
, lenA
, classPtr
->menuName
, lenW
);
188 memcpy( classPtr
->menuName
+ lenW
, name
, lenA
);
190 else classPtr
->menuName
= (LPWSTR
)name
;
194 /***********************************************************************
197 * Set the menu name in a class structure by copying the string.
199 static void CLASS_SetMenuNameW( CLASS
*classPtr
, LPCWSTR name
)
201 if (HIWORD(classPtr
->menuName
)) HeapFree( GetProcessHeap(), 0, classPtr
->menuName
);
204 DWORD lenW
= strlenW(name
) + 1;
205 DWORD lenA
= WideCharToMultiByte( CP_ACP
, 0, name
, lenW
, NULL
, 0, NULL
, NULL
);
206 classPtr
->menuName
= HeapAlloc( GetProcessHeap(), 0, lenA
+ lenW
*sizeof(WCHAR
) );
207 memcpy( classPtr
->menuName
, name
, lenW
*sizeof(WCHAR
) );
208 WideCharToMultiByte( CP_ACP
, 0, name
, lenW
,
209 (char *)(classPtr
->menuName
+ lenW
), lenA
, NULL
, NULL
);
211 else classPtr
->menuName
= (LPWSTR
)name
;
215 /***********************************************************************
218 * Free a class structure.
220 static void CLASS_FreeClass( CLASS
*classPtr
)
222 TRACE("%p\n", classPtr
);
226 list_remove( &classPtr
->entry
);
227 if (classPtr
->hbrBackground
> (HBRUSH
)(COLOR_GRADIENTINACTIVECAPTION
+ 1))
228 DeleteObject( classPtr
->hbrBackground
);
229 HeapFree( GetProcessHeap(), 0, classPtr
->menuName
);
230 HeapFree( GetProcessHeap(), 0, classPtr
);
235 /***********************************************************************
236 * CLASS_FreeModuleClasses
238 void CLASS_FreeModuleClasses( HMODULE16 hModule
)
240 struct list
*ptr
, *next
;
242 TRACE("0x%08x\n", hModule
);
245 for (ptr
= list_head( &class_list
); ptr
; ptr
= next
)
247 CLASS
*class = LIST_ENTRY( ptr
, CLASS
, entry
);
248 next
= list_next( &class_list
, ptr
);
249 if (class->hInstance
== HINSTANCE_32(hModule
))
253 SERVER_START_REQ( destroy_class
)
255 req
->atom
= class->atomName
;
256 req
->instance
= class->hInstance
;
257 ret
= !wine_server_call_err( req
);
260 if (ret
) CLASS_FreeClass( class );
267 /***********************************************************************
268 * CLASS_FindClassByAtom
270 * Return a pointer to the class.
271 * hinstance has been normalized by the caller.
273 static CLASS
*CLASS_FindClassByAtom( ATOM atom
, HINSTANCE hinstance
)
279 LIST_FOR_EACH( ptr
, &class_list
)
281 CLASS
*class = LIST_ENTRY( ptr
, CLASS
, entry
);
282 if (class->atomName
!= atom
) continue;
283 if (!hinstance
|| !class->local
|| class->hInstance
== hinstance
)
285 TRACE("0x%04x %p -> %p\n", atom
, hinstance
, class);
290 TRACE("0x%04x %p -> not found\n", atom
, hinstance
);
295 /***********************************************************************
296 * CLASS_RegisterClass
298 * The real RegisterClass() functionality.
299 * The atom is deleted no matter what.
301 static CLASS
*CLASS_RegisterClass( ATOM atom
, HINSTANCE hInstance
, BOOL local
,
302 DWORD style
, INT classExtra
, INT winExtra
)
307 TRACE("atom=0x%x hinst=%p style=0x%lx clExtr=0x%x winExtr=0x%x\n",
308 atom
, hInstance
, style
, classExtra
, winExtra
);
310 /* Fix the extra bytes value */
312 if (classExtra
< 0 || winExtra
< 0)
314 SetLastError( ERROR_INVALID_PARAMETER
);
317 if (classExtra
> 40) /* Extra bytes are limited to 40 in Win32 */
318 WARN("Class extra bytes %d is > 40\n", classExtra
);
319 if (winExtra
> 40) /* Extra bytes are limited to 40 in Win32 */
320 WARN("Win extra bytes %d is > 40\n", winExtra
);
322 classPtr
= HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY
, sizeof(CLASS
) + classExtra
);
325 GlobalDeleteAtom( atom
);
329 SERVER_START_REQ( create_class
)
334 req
->instance
= hInstance
;
335 req
->extra
= classExtra
;
336 req
->win_extra
= winExtra
;
337 req
->client_ptr
= classPtr
;
338 ret
= !wine_server_call_err( req
);
341 GlobalDeleteAtom( atom
); /* the server increased the atom ref count */
344 HeapFree( GetProcessHeap(), 0, classPtr
);
348 classPtr
->style
= style
;
349 classPtr
->local
= local
;
350 classPtr
->cbWndExtra
= winExtra
;
351 classPtr
->cbClsExtra
= classExtra
;
352 classPtr
->hInstance
= hInstance
;
353 classPtr
->atomName
= atom
;
355 /* Other non-null values must be set by caller */
358 if (local
) list_add_head( &class_list
, &classPtr
->entry
);
359 else list_add_tail( &class_list
, &classPtr
->entry
);
364 /***********************************************************************
367 * Register a builtin control class.
368 * This allows having both ASCII and Unicode winprocs for the same class.
370 static CLASS
*register_builtin( const struct builtin_class_descr
*descr
)
375 if (!(atom
= GlobalAddAtomA( descr
->name
))) return 0;
377 if (!(classPtr
= CLASS_RegisterClass( atom
, user32_module
, FALSE
,
378 descr
->style
, 0, descr
->extra
))) return 0;
380 classPtr
->hCursor
= LoadCursorA( 0, (LPSTR
)descr
->cursor
);
381 classPtr
->hbrBackground
= descr
->brush
;
382 classPtr
->winproc
= WINPROC_AllocProc( descr
->procA
, descr
->procW
);
383 release_class_ptr( classPtr
);
388 /***********************************************************************
389 * CLASS_RegisterBuiltinClasses
391 void CLASS_RegisterBuiltinClasses(void)
393 extern const struct builtin_class_descr BUTTON_builtin_class
;
394 extern const struct builtin_class_descr COMBO_builtin_class
;
395 extern const struct builtin_class_descr COMBOLBOX_builtin_class
;
396 extern const struct builtin_class_descr DIALOG_builtin_class
;
397 extern const struct builtin_class_descr DESKTOP_builtin_class
;
398 extern const struct builtin_class_descr EDIT_builtin_class
;
399 extern const struct builtin_class_descr ICONTITLE_builtin_class
;
400 extern const struct builtin_class_descr LISTBOX_builtin_class
;
401 extern const struct builtin_class_descr MDICLIENT_builtin_class
;
402 extern const struct builtin_class_descr MENU_builtin_class
;
403 extern const struct builtin_class_descr SCROLL_builtin_class
;
404 extern const struct builtin_class_descr STATIC_builtin_class
;
406 register_builtin( &DESKTOP_builtin_class
);
407 register_builtin( &BUTTON_builtin_class
);
408 register_builtin( &COMBO_builtin_class
);
409 register_builtin( &COMBOLBOX_builtin_class
);
410 register_builtin( &DIALOG_builtin_class
);
411 register_builtin( &EDIT_builtin_class
);
412 register_builtin( &ICONTITLE_builtin_class
);
413 register_builtin( &LISTBOX_builtin_class
);
414 register_builtin( &MDICLIENT_builtin_class
);
415 register_builtin( &MENU_builtin_class
);
416 register_builtin( &SCROLL_builtin_class
);
417 register_builtin( &STATIC_builtin_class
);
421 /***********************************************************************
424 * Add a new window using this class, and set the necessary
425 * information inside the window structure.
427 void CLASS_AddWindow( CLASS
*class, WND
*win
, BOOL unicode
)
430 win
->clsStyle
= class->style
;
431 win
->winproc
= class->winproc
;
432 if (WINPROC_IsUnicode( win
->winproc
, unicode
)) win
->flags
|= WIN_ISUNICODE
;
436 /***********************************************************************
437 * RegisterClassA (USER32.@)
439 * Register a window class.
442 * >0: Unique identifier
445 ATOM WINAPI
RegisterClassA( const WNDCLASSA
* wc
) /* [in] Address of structure with class data */
449 wcex
.cbSize
= sizeof(wcex
);
450 wcex
.style
= wc
->style
;
451 wcex
.lpfnWndProc
= wc
->lpfnWndProc
;
452 wcex
.cbClsExtra
= wc
->cbClsExtra
;
453 wcex
.cbWndExtra
= wc
->cbWndExtra
;
454 wcex
.hInstance
= wc
->hInstance
;
455 wcex
.hIcon
= wc
->hIcon
;
456 wcex
.hCursor
= wc
->hCursor
;
457 wcex
.hbrBackground
= wc
->hbrBackground
;
458 wcex
.lpszMenuName
= wc
->lpszMenuName
;
459 wcex
.lpszClassName
= wc
->lpszClassName
;
461 return RegisterClassExA( &wcex
);
465 /***********************************************************************
466 * RegisterClassW (USER32.@)
468 * See RegisterClassA.
470 ATOM WINAPI
RegisterClassW( const WNDCLASSW
* wc
)
474 wcex
.cbSize
= sizeof(wcex
);
475 wcex
.style
= wc
->style
;
476 wcex
.lpfnWndProc
= wc
->lpfnWndProc
;
477 wcex
.cbClsExtra
= wc
->cbClsExtra
;
478 wcex
.cbWndExtra
= wc
->cbWndExtra
;
479 wcex
.hInstance
= wc
->hInstance
;
480 wcex
.hIcon
= wc
->hIcon
;
481 wcex
.hCursor
= wc
->hCursor
;
482 wcex
.hbrBackground
= wc
->hbrBackground
;
483 wcex
.lpszMenuName
= wc
->lpszMenuName
;
484 wcex
.lpszClassName
= wc
->lpszClassName
;
486 return RegisterClassExW( &wcex
);
490 /***********************************************************************
491 * RegisterClassExA (USER32.@)
493 ATOM WINAPI
RegisterClassExA( const WNDCLASSEXA
* wc
)
499 if (wc
->hInstance
== user32_module
)
501 /* we can't register a class for user32 */
502 SetLastError( ERROR_INVALID_PARAMETER
);
505 if (!(instance
= wc
->hInstance
)) instance
= GetModuleHandleW( NULL
);
507 if (!(atom
= GlobalAddAtomA( wc
->lpszClassName
))) return 0;
509 if (!(classPtr
= CLASS_RegisterClass( atom
, instance
, !(wc
->style
& CS_GLOBALCLASS
),
510 wc
->style
, wc
->cbClsExtra
, wc
->cbWndExtra
)))
513 TRACE("atom=%04x wndproc=%p hinst=%p bg=%p style=%08x clsExt=%d winExt=%d class=%p\n",
514 atom
, wc
->lpfnWndProc
, instance
, wc
->hbrBackground
,
515 wc
->style
, wc
->cbClsExtra
, wc
->cbWndExtra
, classPtr
);
517 classPtr
->hIcon
= wc
->hIcon
;
518 classPtr
->hIconSm
= wc
->hIconSm
;
519 classPtr
->hCursor
= wc
->hCursor
;
520 classPtr
->hbrBackground
= wc
->hbrBackground
;
521 classPtr
->winproc
= WINPROC_AllocProc( wc
->lpfnWndProc
, NULL
);
522 CLASS_SetMenuNameA( classPtr
, wc
->lpszMenuName
);
523 release_class_ptr( classPtr
);
528 /***********************************************************************
529 * RegisterClassExW (USER32.@)
531 ATOM WINAPI
RegisterClassExW( const WNDCLASSEXW
* wc
)
537 if (wc
->hInstance
== user32_module
)
539 /* we can't register a class for user32 */
540 SetLastError( ERROR_INVALID_PARAMETER
);
543 if (!(instance
= wc
->hInstance
)) instance
= GetModuleHandleW( NULL
);
545 if (!(atom
= GlobalAddAtomW( wc
->lpszClassName
))) return 0;
547 if (!(classPtr
= CLASS_RegisterClass( atom
, instance
, !(wc
->style
& CS_GLOBALCLASS
),
548 wc
->style
, wc
->cbClsExtra
, wc
->cbWndExtra
)))
551 TRACE("atom=%04x wndproc=%p hinst=%p bg=%p style=%08x clsExt=%d winExt=%d class=%p\n",
552 atom
, wc
->lpfnWndProc
, instance
, wc
->hbrBackground
,
553 wc
->style
, wc
->cbClsExtra
, wc
->cbWndExtra
, classPtr
);
555 classPtr
->hIcon
= wc
->hIcon
;
556 classPtr
->hIconSm
= wc
->hIconSm
;
557 classPtr
->hCursor
= wc
->hCursor
;
558 classPtr
->hbrBackground
= wc
->hbrBackground
;
559 classPtr
->winproc
= WINPROC_AllocProc( NULL
, wc
->lpfnWndProc
);
560 CLASS_SetMenuNameW( classPtr
, wc
->lpszMenuName
);
561 release_class_ptr( classPtr
);
566 /***********************************************************************
567 * UnregisterClassA (USER32.@)
569 BOOL WINAPI
UnregisterClassA( LPCSTR className
, HINSTANCE hInstance
)
571 ATOM atom
= HIWORD(className
) ? GlobalFindAtomA( className
) : LOWORD(className
);
572 return UnregisterClassW( MAKEINTATOMW(atom
), hInstance
);
575 /***********************************************************************
576 * UnregisterClassW (USER32.@)
578 BOOL WINAPI
UnregisterClassW( LPCWSTR className
, HINSTANCE hInstance
)
580 CLASS
*classPtr
= NULL
;
581 ATOM atom
= HIWORD(className
) ? GlobalFindAtomW( className
) : LOWORD(className
);
583 TRACE("%s %p %x\n",debugstr_w(className
), hInstance
, atom
);
587 SetLastError( ERROR_CLASS_DOES_NOT_EXIST
);
591 SERVER_START_REQ( destroy_class
)
594 req
->instance
= hInstance
;
595 if (!wine_server_call_err( req
)) classPtr
= reply
->client_ptr
;
599 if (classPtr
) CLASS_FreeClass( classPtr
);
600 return (classPtr
!= NULL
);
604 /***********************************************************************
605 * GetClassWord (USER32.@)
607 WORD WINAPI
GetClassWord( HWND hwnd
, INT offset
)
612 if (offset
< 0) return GetClassLongA( hwnd
, offset
);
614 TRACE("%p %x\n",hwnd
, offset
);
616 if (!(class = get_class_ptr( hwnd
, FALSE
))) return 0;
618 if (class == CLASS_OTHER_PROCESS
)
620 SERVER_START_REQ( set_class_info
)
624 req
->extra_offset
= offset
;
625 req
->extra_size
= sizeof(retvalue
);
626 if (!wine_server_call_err( req
))
627 memcpy( &retvalue
, &reply
->old_extra_value
, sizeof(retvalue
) );
633 if (offset
<= class->cbClsExtra
- sizeof(WORD
))
634 memcpy( &retvalue
, (char *)(class + 1) + offset
, sizeof(retvalue
) );
636 SetLastError( ERROR_INVALID_INDEX
);
637 release_class_ptr( class );
642 /***********************************************************************
645 * Implementation of GetClassLong(Ptr)A/W
647 static ULONG_PTR
CLASS_GetClassLong( HWND hwnd
, INT offset
, UINT size
,
651 ULONG_PTR retvalue
= 0;
653 TRACE("%p %d\n", hwnd
, offset
);
655 if (!(class = get_class_ptr( hwnd
, FALSE
))) return 0;
657 if (class == CLASS_OTHER_PROCESS
)
659 SERVER_START_REQ( set_class_info
)
663 req
->extra_offset
= (offset
>= 0) ? offset
: -1;
664 req
->extra_size
= (offset
>= 0) ? size
: 0;
665 if (!wine_server_call_err( req
))
669 case GCLP_HBRBACKGROUND
:
675 FIXME( "offset %d not supported on other process window %p\n", offset
, hwnd
);
676 SetLastError( ERROR_INVALID_HANDLE
);
679 retvalue
= reply
->old_style
;
682 retvalue
= reply
->old_win_extra
;
685 retvalue
= reply
->old_extra
;
688 retvalue
= (ULONG_PTR
)reply
->old_instance
;
691 retvalue
= reply
->old_atom
;
696 if (size
== sizeof(DWORD
))
699 memcpy( &retdword
, &reply
->old_extra_value
, sizeof(DWORD
) );
703 memcpy( &retvalue
, &reply
->old_extra_value
,
706 else SetLastError( ERROR_INVALID_INDEX
);
717 if (offset
<= class->cbClsExtra
- size
)
719 if (size
== sizeof(DWORD
))
722 memcpy( &retdword
, (char *)(class + 1) + offset
, sizeof(DWORD
) );
726 memcpy( &retvalue
, (char *)(class + 1) + offset
, sizeof(ULONG_PTR
) );
729 SetLastError( ERROR_INVALID_INDEX
);
730 release_class_ptr( class );
736 case GCLP_HBRBACKGROUND
:
737 retvalue
= (ULONG_PTR
)class->hbrBackground
;
740 retvalue
= (ULONG_PTR
)class->hCursor
;
743 retvalue
= (ULONG_PTR
)class->hIcon
;
746 retvalue
= (ULONG_PTR
)class->hIconSm
;
749 retvalue
= class->style
;
752 retvalue
= class->cbWndExtra
;
755 retvalue
= class->cbClsExtra
;
758 retvalue
= (ULONG_PTR
)class->hInstance
;
761 retvalue
= (ULONG_PTR
)WINPROC_GetProc( class->winproc
, unicode
);
764 retvalue
= (ULONG_PTR
)CLASS_GetMenuNameW( class );
766 retvalue
= (ULONG_PTR
)CLASS_GetMenuNameW( class );
768 retvalue
= (ULONG_PTR
)CLASS_GetMenuNameA( class );
771 retvalue
= class->atomName
;
774 SetLastError( ERROR_INVALID_INDEX
);
777 release_class_ptr( class );
782 /***********************************************************************
783 * GetClassLongW (USER32.@)
785 DWORD WINAPI
GetClassLongW( HWND hwnd
, INT offset
)
787 return CLASS_GetClassLong( hwnd
, offset
, sizeof(DWORD
), TRUE
);
792 /***********************************************************************
793 * GetClassLongA (USER32.@)
795 DWORD WINAPI
GetClassLongA( HWND hwnd
, INT offset
)
797 return CLASS_GetClassLong( hwnd
, offset
, sizeof(DWORD
), FALSE
);
801 /***********************************************************************
802 * SetClassWord (USER32.@)
804 WORD WINAPI
SetClassWord( HWND hwnd
, INT offset
, WORD newval
)
809 if (offset
< 0) return SetClassLongA( hwnd
, offset
, (DWORD
)newval
);
811 TRACE("%p %d %x\n", hwnd
, offset
, newval
);
813 if (!(class = get_class_ptr( hwnd
, TRUE
))) return 0;
815 SERVER_START_REQ( set_class_info
)
818 req
->flags
= SET_CLASS_EXTRA
;
819 req
->extra_offset
= offset
;
820 req
->extra_size
= sizeof(newval
);
821 memcpy( &req
->extra_value
, &newval
, sizeof(newval
) );
822 if (!wine_server_call_err( req
))
824 void *ptr
= (char *)(class + 1) + offset
;
825 memcpy( &retval
, ptr
, sizeof(retval
) );
826 memcpy( ptr
, &newval
, sizeof(newval
) );
830 release_class_ptr( class );
835 /***********************************************************************
838 * Implementation of SetClassLong(Ptr)A/W
840 static ULONG_PTR
CLASS_SetClassLong( HWND hwnd
, INT offset
, LONG_PTR newval
,
841 UINT size
, BOOL unicode
)
844 ULONG_PTR retval
= 0;
846 TRACE("%p %d %lx\n", hwnd
, offset
, newval
);
848 if (!(class = get_class_ptr( hwnd
, TRUE
))) return 0;
852 if (set_server_info( hwnd
, offset
, newval
, size
))
854 void *ptr
= (char *)(class + 1) + offset
;
855 if ( size
== sizeof(LONG
) )
858 LONG newlong
= newval
;
859 memcpy( &retdword
, ptr
, sizeof(DWORD
) );
860 memcpy( ptr
, &newlong
, sizeof(LONG
) );
865 memcpy( &retval
, ptr
, sizeof(ULONG_PTR
) );
866 memcpy( ptr
, &newval
, sizeof(LONG_PTR
) );
874 CLASS_SetMenuNameW( class, (LPCWSTR
)newval
);
876 CLASS_SetMenuNameA( class, (LPCSTR
)newval
);
877 retval
= 0; /* Old value is now meaningless anyway */
880 retval
= (ULONG_PTR
)WINPROC_GetProc( class->winproc
, unicode
);
881 class->winproc
= WINPROC_AllocProc( unicode
? NULL
: (WNDPROC
)newval
,
882 unicode
? (WNDPROC
)newval
: NULL
);
884 case GCLP_HBRBACKGROUND
:
885 retval
= (ULONG_PTR
)class->hbrBackground
;
886 class->hbrBackground
= (HBRUSH
)newval
;
889 retval
= (ULONG_PTR
)class->hCursor
;
890 class->hCursor
= (HCURSOR
)newval
;
893 retval
= (ULONG_PTR
)class->hIcon
;
894 class->hIcon
= (HICON
)newval
;
897 retval
= (ULONG_PTR
)class->hIconSm
;
898 class->hIconSm
= (HICON
)newval
;
901 if (!set_server_info( hwnd
, offset
, newval
, size
)) break;
902 retval
= class->style
;
903 class->style
= newval
;
906 if (!set_server_info( hwnd
, offset
, newval
, size
)) break;
907 retval
= class->cbWndExtra
;
908 class->cbWndExtra
= newval
;
911 if (!set_server_info( hwnd
, offset
, newval
, size
)) break;
912 retval
= (ULONG_PTR
)class->hInstance
;
913 class->hInstance
= (HINSTANCE
)newval
;
916 if (!set_server_info( hwnd
, offset
, newval
, size
)) break;
917 retval
= class->atomName
;
918 class->atomName
= newval
;
920 case GCL_CBCLSEXTRA
: /* cannot change this one */
921 SetLastError( ERROR_INVALID_PARAMETER
);
924 SetLastError( ERROR_INVALID_INDEX
);
927 release_class_ptr( class );
932 /***********************************************************************
933 * SetClassLongW (USER32.@)
935 DWORD WINAPI
SetClassLongW( HWND hwnd
, INT offset
, LONG newval
)
937 TRACE("%p %d %lx\n", hwnd
, offset
, newval
);
939 return CLASS_SetClassLong( hwnd
, offset
, newval
, sizeof(LONG
), TRUE
);
943 /***********************************************************************
944 * SetClassLongA (USER32.@)
946 DWORD WINAPI
SetClassLongA( HWND hwnd
, INT offset
, LONG newval
)
948 TRACE("%p %d %lx\n", hwnd
, offset
, newval
);
950 return CLASS_SetClassLong( hwnd
, offset
, newval
, sizeof(LONG
), FALSE
);
954 /***********************************************************************
955 * GetClassNameA (USER32.@)
957 INT WINAPI
GetClassNameA( HWND hwnd
, LPSTR buffer
, INT count
)
959 INT ret
= GlobalGetAtomNameA( GetClassLongA( hwnd
, GCW_ATOM
), buffer
, count
);
961 TRACE("%p %s %x\n",hwnd
, debugstr_a(buffer
), count
);
966 /***********************************************************************
967 * GetClassNameW (USER32.@)
969 INT WINAPI
GetClassNameW( HWND hwnd
, LPWSTR buffer
, INT count
)
971 INT ret
= GlobalGetAtomNameW( GetClassLongW( hwnd
, GCW_ATOM
), buffer
, count
);
973 TRACE("%p %s %x\n",hwnd
, debugstr_w(buffer
), count
);
978 /***********************************************************************
979 * RealGetWindowClassA (USER32.@)
981 UINT WINAPI
RealGetWindowClassA( HWND hwnd
, LPSTR buffer
, UINT count
)
983 return GetClassNameA( hwnd
, buffer
, count
);
987 /***********************************************************************
988 * RealGetWindowClassW (USER32.@)
990 UINT WINAPI
RealGetWindowClassW( HWND hwnd
, LPWSTR buffer
, UINT count
)
992 return GetClassNameW( hwnd
, buffer
, count
);
996 /***********************************************************************
997 * GetClassInfoA (USER32.@)
999 BOOL WINAPI
GetClassInfoA( HINSTANCE hInstance
, LPCSTR name
, WNDCLASSA
*wc
)
1002 UINT ret
= GetClassInfoExA( hInstance
, name
, &wcex
);
1006 wc
->style
= wcex
.style
;
1007 wc
->lpfnWndProc
= wcex
.lpfnWndProc
;
1008 wc
->cbClsExtra
= wcex
.cbClsExtra
;
1009 wc
->cbWndExtra
= wcex
.cbWndExtra
;
1010 wc
->hInstance
= wcex
.hInstance
;
1011 wc
->hIcon
= wcex
.hIcon
;
1012 wc
->hCursor
= wcex
.hCursor
;
1013 wc
->hbrBackground
= wcex
.hbrBackground
;
1014 wc
->lpszMenuName
= wcex
.lpszMenuName
;
1015 wc
->lpszClassName
= wcex
.lpszClassName
;
1021 /***********************************************************************
1022 * GetClassInfoW (USER32.@)
1024 BOOL WINAPI
GetClassInfoW( HINSTANCE hInstance
, LPCWSTR name
, WNDCLASSW
*wc
)
1027 UINT ret
= GetClassInfoExW( hInstance
, name
, &wcex
);
1031 wc
->style
= wcex
.style
;
1032 wc
->lpfnWndProc
= wcex
.lpfnWndProc
;
1033 wc
->cbClsExtra
= wcex
.cbClsExtra
;
1034 wc
->cbWndExtra
= wcex
.cbWndExtra
;
1035 wc
->hInstance
= wcex
.hInstance
;
1036 wc
->hIcon
= wcex
.hIcon
;
1037 wc
->hCursor
= wcex
.hCursor
;
1038 wc
->hbrBackground
= wcex
.hbrBackground
;
1039 wc
->lpszMenuName
= wcex
.lpszMenuName
;
1040 wc
->lpszClassName
= wcex
.lpszClassName
;
1046 /***********************************************************************
1047 * GetClassInfoExA (USER32.@)
1049 BOOL WINAPI
GetClassInfoExA( HINSTANCE hInstance
, LPCSTR name
, WNDCLASSEXA
*wc
)
1051 ATOM atom
= HIWORD(name
) ? GlobalFindAtomA( name
) : LOWORD(name
);
1054 TRACE("%p %s %x %p\n", hInstance
, debugstr_a(name
), atom
, wc
);
1056 if (!hInstance
) hInstance
= user32_module
;
1058 if (!atom
|| !(classPtr
= CLASS_FindClassByAtom( atom
, hInstance
)))
1060 SetLastError( ERROR_CLASS_DOES_NOT_EXIST
);
1063 wc
->style
= classPtr
->style
;
1064 wc
->lpfnWndProc
= WINPROC_GetProc( classPtr
->winproc
, FALSE
);
1065 wc
->cbClsExtra
= classPtr
->cbClsExtra
;
1066 wc
->cbWndExtra
= classPtr
->cbWndExtra
;
1067 wc
->hInstance
= (hInstance
== user32_module
) ? 0 : hInstance
;
1068 wc
->hIcon
= (HICON
)classPtr
->hIcon
;
1069 wc
->hIconSm
= (HICON
)classPtr
->hIconSm
;
1070 wc
->hCursor
= (HCURSOR
)classPtr
->hCursor
;
1071 wc
->hbrBackground
= (HBRUSH
)classPtr
->hbrBackground
;
1072 wc
->lpszMenuName
= CLASS_GetMenuNameA( classPtr
);
1073 wc
->lpszClassName
= name
;
1074 release_class_ptr( classPtr
);
1076 /* We must return the atom of the class here instead of just TRUE. */
1081 /***********************************************************************
1082 * GetClassInfoExW (USER32.@)
1084 BOOL WINAPI
GetClassInfoExW( HINSTANCE hInstance
, LPCWSTR name
, WNDCLASSEXW
*wc
)
1086 ATOM atom
= HIWORD(name
) ? GlobalFindAtomW( name
) : LOWORD(name
);
1089 TRACE("%p %s %x %p\n", hInstance
, debugstr_w(name
), atom
, wc
);
1091 if (!hInstance
) hInstance
= user32_module
;
1093 if (!atom
|| !(classPtr
= CLASS_FindClassByAtom( atom
, hInstance
)))
1095 SetLastError( ERROR_CLASS_DOES_NOT_EXIST
);
1098 wc
->style
= classPtr
->style
;
1099 wc
->lpfnWndProc
= WINPROC_GetProc( classPtr
->winproc
, TRUE
);
1100 wc
->cbClsExtra
= classPtr
->cbClsExtra
;
1101 wc
->cbWndExtra
= classPtr
->cbWndExtra
;
1102 wc
->hInstance
= (hInstance
== user32_module
) ? 0 : hInstance
;
1103 wc
->hIcon
= (HICON
)classPtr
->hIcon
;
1104 wc
->hIconSm
= (HICON
)classPtr
->hIconSm
;
1105 wc
->hCursor
= (HCURSOR
)classPtr
->hCursor
;
1106 wc
->hbrBackground
= (HBRUSH
)classPtr
->hbrBackground
;
1107 wc
->lpszMenuName
= CLASS_GetMenuNameW( classPtr
);
1108 wc
->lpszClassName
= name
;
1109 release_class_ptr( classPtr
);
1111 /* We must return the atom of the class here instead of just TRUE. */
1116 #if 0 /* toolhelp is in kernel, so this cannot work */
1118 /***********************************************************************
1119 * ClassFirst (TOOLHELP.69)
1121 BOOL16 WINAPI
ClassFirst16( CLASSENTRY
*pClassEntry
)
1123 TRACE("%p\n",pClassEntry
);
1124 pClassEntry
->wNext
= 1;
1125 return ClassNext16( pClassEntry
);
1129 /***********************************************************************
1130 * ClassNext (TOOLHELP.70)
1132 BOOL16 WINAPI
ClassNext16( CLASSENTRY
*pClassEntry
)
1135 CLASS
*class = firstClass
;
1137 TRACE("%p\n",pClassEntry
);
1139 if (!pClassEntry
->wNext
) return FALSE
;
1140 for (i
= 1; (i
< pClassEntry
->wNext
) && class; i
++) class = class->next
;
1143 pClassEntry
->wNext
= 0;
1146 pClassEntry
->hInst
= class->hInstance
;
1147 pClassEntry
->wNext
++;
1148 GlobalGetAtomNameA( class->atomName
, pClassEntry
->szClassName
,
1149 sizeof(pClassEntry
->szClassName
) );
1154 /* 64bit versions */
1156 #ifdef GetClassLongPtrA
1157 #undef GetClassLongPtrA
1160 #ifdef GetClassLongPtrW
1161 #undef GetClassLongPtrW
1164 #ifdef SetClassLongPtrA
1165 #undef SetClassLongPtrA
1168 #ifdef SetClassLongPtrW
1169 #undef SetClassLongPtrW
1172 /***********************************************************************
1173 * GetClassLongPtrA (USER32.@)
1175 ULONG_PTR WINAPI
GetClassLongPtrA( HWND hwnd
, INT offset
)
1177 return CLASS_GetClassLong( hwnd
, offset
, sizeof(ULONG_PTR
), FALSE
);
1180 /***********************************************************************
1181 * GetClassLongPtrW (USER32.@)
1183 ULONG_PTR WINAPI
GetClassLongPtrW( HWND hwnd
, INT offset
)
1185 return CLASS_GetClassLong( hwnd
, offset
, sizeof(ULONG_PTR
), TRUE
);
1188 /***********************************************************************
1189 * SetClassLongPtrW (USER32.@)
1191 ULONG_PTR WINAPI
SetClassLongPtrW( HWND hwnd
, INT offset
, LONG_PTR newval
)
1193 return CLASS_SetClassLong( hwnd
, offset
, newval
, sizeof(LONG_PTR
), TRUE
);
1196 /***********************************************************************
1197 * SetClassLongPtrA (USER32.@)
1199 ULONG_PTR WINAPI
SetClassLongPtrA( HWND hwnd
, INT offset
, LONG_PTR newval
)
1201 return CLASS_SetClassLong( hwnd
, offset
, newval
, sizeof(LONG_PTR
), FALSE
);