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Store a pointer to the client-side class structure in the server and 

return it on create_window and destroy_class.
Only create a single instance of the desktop class for the whole
session.
Added some missing locking in the client-side class management.
This commit is contained in:
Alexandre Julliard 2003-12-11 05:34:53 +00:00
parent 97fc6c3a06
commit bd13ab8d78
9 changed files with 214 additions and 133 deletions
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6
dlls/user/winproc.h
View File

@ -137,11 +137,9 @@ inline static void unmap_str_16_to_32W( LPCWSTR str )
/* Class functions */
struct tagCLASS; /* opaque structure */
struct tagDCE;
struct tagWND;
extern void CLASS_RegisterBuiltinClasses( HINSTANCE inst );
extern struct tagCLASS *CLASS_AddWindow( ATOM atom, HINSTANCE inst, WINDOWPROCTYPE type,
INT *winExtra, WNDPROC *winproc,
DWORD *style, struct tagDCE **dce );
extern void CLASS_AddWindow( struct tagCLASS *class, struct tagWND *win, WINDOWPROCTYPE type );
extern void CLASS_FreeModuleClasses( HMODULE16 hModule );
/* Timer functions */

7
include/wine/server_protocol.h
View File

@ -2526,12 +2526,13 @@ struct create_window_request
user_handle_t owner;
atom_t atom;
void* instance;
int extra;
};
struct create_window_reply
{
struct reply_header __header;
user_handle_t handle;
int extra;
void* class_ptr;
};
@ -3062,6 +3063,7 @@ struct create_class_request
void* instance;
int extra;
int win_extra;
void* client_ptr;
};
struct create_class_reply
{
@ -3079,6 +3081,7 @@ struct destroy_class_request
struct destroy_class_reply
{
struct reply_header __header;
void* client_ptr;
};
@ -3744,6 +3747,6 @@ union generic_reply
struct set_global_windows_reply set_global_windows_reply;
};
#define SERVER_PROTOCOL_VERSION 129
#define SERVER_PROTOCOL_VERSION 130
#endif /* __WINE_WINE_SERVER_PROTOCOL_H */

79
server/class.c
View File

@ -44,10 +44,15 @@ struct window_class
void *instance; /* module instance */
unsigned int style; /* class style */
int win_extra; /* number of window extra bytes */
void *client_ptr; /* pointer to class in client address space */
int nb_extra_bytes; /* number of extra bytes */
char extra_bytes[1]; /* extra bytes storage */
};
#define DESKTOP_ATOM ((atom_t)32769)
static struct window_class *desktop_class;
static struct window_class *create_class( struct process *process, int extra_bytes, int local )
{
struct window_class *class;
@ -67,6 +72,25 @@ static struct window_class *create_class( struct process *process, int extra_byt
return class;
}
static struct window_class *create_desktop_class( unsigned int style, int win_extra )
{
struct window_class *class;
if (!(class = mem_alloc( sizeof(*class) - 1 ))) return NULL;
class->process = NULL;
class->count = 0;
class->local = 0;
class->nb_extra_bytes = 0;
class->atom = DESKTOP_ATOM;
class->instance = NULL;
class->style = style;
class->win_extra = win_extra;
class->client_ptr = NULL;
desktop_class = class;
return class;
}
static void destroy_class( struct window_class *class )
{
list_remove( &class->entry );
@ -95,13 +119,19 @@ static struct window_class *find_class( struct process *process, atom_t atom, vo
if (class->atom != atom) continue;
if (!instance || !class->local || class->instance == instance) return class;
}
if (atom == DESKTOP_ATOM) return desktop_class;
return NULL;
}
struct window_class *grab_class( struct process *process, atom_t atom, void *instance )
struct window_class *grab_class( struct process *process, atom_t atom,
void *instance, int *extra_bytes )
{
struct window_class *class = find_class( process, atom, instance );
if (class) class->count++;
if (class)
{
class->count++;
*extra_bytes = class->win_extra;
}
else set_error( STATUS_INVALID_HANDLE );
return class;
}
@ -117,18 +147,31 @@ atom_t get_class_atom( struct window_class *class )
return class->atom;
}
void *get_class_client_ptr( struct window_class *class )
{
return class->client_ptr;
}
/* create a window class */
DECL_HANDLER(create_class)
{
struct window_class *class = find_class( current->process, req->atom, req->instance );
struct window_class *class;
if (!req->local && req->atom == DESKTOP_ATOM)
{
if (!desktop_class) create_desktop_class( req->style, req->win_extra );
return; /* silently ignore further attempts to create the desktop class */
}
class = find_class( current->process, req->atom, req->instance );
if (class && !class->local == !req->local)
{
set_win32_error( ERROR_CLASS_ALREADY_EXISTS );
return;
}
if (req->extra < 0 || req->extra > 4096) /* don't allow stupid values here */
if (req->extra < 0 || req->extra > 4096 || req->win_extra < 0 || req->win_extra > 4096)
{
/* don't allow stupid values here */
set_error( STATUS_INVALID_PARAMETER );
return;
}
@ -139,10 +182,11 @@ DECL_HANDLER(create_class)
release_global_atom( req->atom );
return;
}
class->atom = req->atom;
class->instance = req->instance;
class->style = req->style;
class->win_extra = req->win_extra;
class->atom = req->atom;
class->instance = req->instance;
class->style = req->style;
class->win_extra = req->win_extra;
class->client_ptr = req->client_ptr;
}
/* destroy a window class */
@ -151,11 +195,14 @@ DECL_HANDLER(destroy_class)
struct window_class *class = find_class( current->process, req->atom, req->instance );
if (!class)
set_error( STATUS_INVALID_HANDLE );
set_win32_error( ERROR_CLASS_DOES_NOT_EXIST );
else if (class->count)
set_win32_error( ERROR_CLASS_HAS_WINDOWS );
else
destroy_class( class );
{
reply->client_ptr = class->client_ptr;
if (class != desktop_class) destroy_class( class );
}
}
@ -166,6 +213,12 @@ DECL_HANDLER(set_class_info)
if (!class) return;
if (req->flags && class->process != current->process)
{
set_error( STATUS_ACCESS_DENIED );
return;
}
if (req->extra_size > sizeof(req->extra_value) ||
req->extra_offset < -1 ||
req->extra_offset > class->nb_extra_bytes - (int)req->extra_size)
@ -173,6 +226,11 @@ DECL_HANDLER(set_class_info)
set_win32_error( ERROR_INVALID_INDEX );
return;
}
if ((req->flags & SET_CLASS_WINEXTRA) && (req->win_extra < 0 || req->win_extra > 4096))
{
set_error( STATUS_INVALID_PARAMETER );
return;
}
if (req->extra_offset != -1)
{
memcpy( &reply->old_extra_value, class->extra_bytes + req->extra_offset, req->extra_size );
@ -201,4 +259,3 @@ DECL_HANDLER(set_class_info)
if (req->flags & SET_CLASS_EXTRA) memcpy( class->extra_bytes + req->extra_offset,
&req->extra_value, req->extra_size );
}

6
server/protocol.def
View File

@ -1781,9 +1781,10 @@ enum message_type
user_handle_t owner; /* owner window */
atom_t atom; /* class atom */
void* instance; /* module instance */
int extra; /* number of extra bytes */
@REPLY
user_handle_t handle; /* created window */
int extra; /* number of extra bytes */
void* class_ptr; /* pointer to class in client address space */
@END
@ -2138,6 +2139,7 @@ enum message_type
void* instance; /* module instance */
int extra; /* number of extra class bytes */
int win_extra; /* number of window extra bytes */
void* client_ptr; /* pointer to class in client address space */
@END
@ -2145,6 +2147,8 @@ enum message_type
@REQ(destroy_class)
atom_t atom; /* class atom */
void* instance; /* module instance */
@REPLY
void* client_ptr; /* pointer to class in client address space */
@END

17
server/trace.c
View File

@ -2096,13 +2096,14 @@ static void dump_create_window_request( const struct create_window_request *req
fprintf( stderr, " parent=%p,", req->parent );
fprintf( stderr, " owner=%p,", req->owner );
fprintf( stderr, " atom=%04x,", req->atom );
fprintf( stderr, " instance=%p,", req->instance );
fprintf( stderr, " extra=%d", req->extra );
fprintf( stderr, " instance=%p", req->instance );
}
static void dump_create_window_reply( const struct create_window_reply *req )
{
fprintf( stderr, " handle=%p", req->handle );
fprintf( stderr, " handle=%p,", req->handle );
fprintf( stderr, " extra=%d,", req->extra );
fprintf( stderr, " class_ptr=%p", req->class_ptr );
}
static void dump_link_window_request( const struct link_window_request *req )
@ -2511,7 +2512,8 @@ static void dump_create_class_request( const struct create_class_request *req )
fprintf( stderr, " style=%08x,", req->style );
fprintf( stderr, " instance=%p,", req->instance );
fprintf( stderr, " extra=%d,", req->extra );
fprintf( stderr, " win_extra=%d", req->win_extra );
fprintf( stderr, " win_extra=%d,", req->win_extra );
fprintf( stderr, " client_ptr=%p", req->client_ptr );
}
static void dump_destroy_class_request( const struct destroy_class_request *req )
@ -2520,6 +2522,11 @@ static void dump_destroy_class_request( const struct destroy_class_request *req
fprintf( stderr, " instance=%p", req->instance );
}
static void dump_destroy_class_reply( const struct destroy_class_reply *req )
{
fprintf( stderr, " client_ptr=%p", req->client_ptr );
}
static void dump_set_class_info_request( const struct set_class_info_request *req )
{
fprintf( stderr, " window=%p,", req->window );
@ -2952,7 +2959,7 @@ static const dump_func reply_dumpers[REQ_NB_REQUESTS] = {
(dump_func)0,
(dump_func)dump_get_next_hook_reply,
(dump_func)0,
(dump_func)0,
(dump_func)dump_destroy_class_reply,
(dump_func)dump_set_class_info_reply,
(dump_func)dump_set_clipboard_info_reply,
(dump_func)dump_open_token_reply,

4
server/user.h
View File

@ -78,8 +78,10 @@ extern struct window_class *get_window_class( user_handle_t window );
/* window class functions */
extern void destroy_process_classes( struct process *process );
extern struct window_class *grab_class( struct process *process, atom_t atom, void *instance );
extern struct window_class *grab_class( struct process *process, atom_t atom,
void *instance, int *extra_bytes );
extern void release_class( struct window_class *class );
extern atom_t get_class_atom( struct window_class *class );
extern void *get_class_client_ptr( struct window_class *class );
#endif /* __WINE_SERVER_USER_H */

26
server/window.c
View File

@ -268,11 +268,12 @@ static void destroy_window( struct window *win )
}
/* create a new window structure (note: the window is not linked in the window tree) */
static struct window *create_window( struct window *parent, struct window *owner, atom_t atom,
void *instance, int extra_bytes )
static struct window *create_window( struct window *parent, struct window *owner,
atom_t atom, void *instance )
{
int extra_bytes;
struct window *win;
struct window_class *class = grab_class( current->process, atom, instance );
struct window_class *class = grab_class( current->process, atom, instance, &extra_bytes );
if (!class) return NULL;
@ -474,25 +475,22 @@ struct window_class* get_window_class( user_handle_t window )
/* create a window */
DECL_HANDLER(create_window)
{
struct window *win;
reply->handle = 0;
if (req->extra < 0 || req->extra > 4096) /* don't allow stupid values here */
{
set_error( STATUS_INVALID_PARAMETER );
return;
}
if (!req->parent) /* return desktop window */
{
if (!top_window)
{
if (!(top_window = create_window( NULL, NULL, req->atom, req->instance, req->extra ))) return;
if (!(top_window = create_window( NULL, NULL, req->atom, req->instance ))) return;
top_window->thread = NULL; /* no thread owns the desktop */
top_window->style = WS_POPUP | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
}
reply->handle = top_window->handle;
win = top_window;
}
else
{
struct window *win, *parent, *owner = NULL;
struct window *parent, *owner = NULL;
if (!(parent = get_window( req->parent ))) return;
if (req->owner && !(owner = get_window( req->owner ))) return;
@ -503,9 +501,11 @@ DECL_HANDLER(create_window)
set_error( STATUS_ACCESS_DENIED );
return;
}
if (!(win = create_window( parent, owner, req->atom, req->instance, req->extra ))) return;
reply->handle = win->handle;
if (!(win = create_window( parent, owner, req->atom, req->instance ))) return;
}
reply->handle = win->handle;
reply->extra = win->nb_extra_bytes;
reply->class_ptr = get_class_client_ptr( win->class );
}

153
windows/class.c
View File

@ -67,6 +67,7 @@ typedef struct tagCLASS
} CLASS;
static struct list class_list = LIST_INIT( class_list );
static CLASS *desktop_class;
static HMODULE user32_module;
#define CLASS_OTHER_PROCESS ((CLASS *)1)
@ -293,37 +294,22 @@ static void CLASS_SetMenuNameW( CLASS *classPtr, LPCWSTR name )
*
* Free a class structure.
*/
static BOOL CLASS_FreeClass( CLASS *classPtr )
static void CLASS_FreeClass( CLASS *classPtr )
{
BOOL ret;
TRACE("%p\n", classPtr);
SERVER_START_REQ( destroy_class )
{
req->atom = classPtr->atomName;
req->instance = classPtr->hInstance;
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
USER_Lock();
if (ret)
{
list_remove( &classPtr->entry );
/* Delete the class */
if (classPtr->dce) DCE_FreeDCE( classPtr->dce );
if (classPtr->hbrBackground > (HBRUSH)(COLOR_GRADIENTINACTIVECAPTION + 1))
DeleteObject( classPtr->hbrBackground );
GlobalDeleteAtom( classPtr->atomName );
WINPROC_FreeProc( classPtr->winprocA, WIN_PROC_CLASS );
WINPROC_FreeProc( classPtr->winprocW, WIN_PROC_CLASS );
UnMapLS( classPtr->segMenuName );
HeapFree( GetProcessHeap(), 0, classPtr->menuName );
HeapFree( GetProcessHeap(), 0, classPtr );
}
return ret;
list_remove( &classPtr->entry );
if (classPtr->dce) DCE_FreeDCE( classPtr->dce );
if (classPtr->hbrBackground > (HBRUSH)(COLOR_GRADIENTINACTIVECAPTION + 1))
DeleteObject( classPtr->hbrBackground );
WINPROC_FreeProc( classPtr->winprocA, WIN_PROC_CLASS );
WINPROC_FreeProc( classPtr->winprocW, WIN_PROC_CLASS );
UnMapLS( classPtr->segMenuName );
HeapFree( GetProcessHeap(), 0, classPtr->menuName );
HeapFree( GetProcessHeap(), 0, classPtr );
USER_Unlock();
}
@ -341,7 +327,19 @@ void CLASS_FreeModuleClasses( HMODULE16 hModule )
{
CLASS *class = LIST_ENTRY( ptr, CLASS, entry );
next = list_next( &class_list, ptr );
if (class->hInstance == HINSTANCE_32(hModule)) CLASS_FreeClass( class );
if (class->hInstance == HINSTANCE_32(hModule))
{
BOOL ret;
SERVER_START_REQ( destroy_class )
{
req->atom = class->atomName;
req->instance = class->hInstance;
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
if (ret) CLASS_FreeClass( class );
}
}
USER_Unlock();
}
@ -357,6 +355,8 @@ static CLASS *CLASS_FindClassByAtom( ATOM atom, HINSTANCE hinstance )
{
struct list *ptr;
USER_Lock();
LIST_FOR_EACH( ptr, &class_list )
{
CLASS *class = LIST_ENTRY( ptr, CLASS, entry );
@ -367,6 +367,7 @@ static CLASS *CLASS_FindClassByAtom( ATOM atom, HINSTANCE hinstance )
return class;
}
}
USER_Unlock();
TRACE("0x%04x %p -> not found\n", atom, hinstance);
return NULL;
}
@ -376,6 +377,7 @@ static CLASS *CLASS_FindClassByAtom( ATOM atom, HINSTANCE hinstance )
* CLASS_RegisterClass
*
* The real RegisterClass() functionality.
* The atom is deleted no matter what.
*/
static CLASS *CLASS_RegisterClass( ATOM atom, HINSTANCE hInstance, BOOL local,
DWORD style, INT classExtra, INT winExtra )
@ -396,19 +398,25 @@ static CLASS *CLASS_RegisterClass( ATOM atom, HINSTANCE hInstance, BOOL local,
WARN("Win extra bytes %d is > 40\n", winExtra );
classPtr = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(CLASS) + classExtra );
if (!classPtr) return NULL;
if (!classPtr)
{
GlobalDeleteAtom( atom );
return NULL;
}
SERVER_START_REQ( create_class )
{
req->local = local;
req->atom = atom;
req->style = style;
req->instance = hInstance;
req->extra = classExtra;
req->win_extra = winExtra;
req->local = local;
req->atom = atom;
req->style = style;
req->instance = hInstance;
req->extra = classExtra;
req->win_extra = winExtra;
req->client_ptr = classPtr;
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
GlobalDeleteAtom( atom ); /* the server increased the atom ref count */
if (!ret)
{
HeapFree( GetProcessHeap(), 0, classPtr );
@ -425,6 +433,7 @@ static CLASS *CLASS_RegisterClass( ATOM atom, HINSTANCE hInstance, BOOL local,
/* Other non-null values must be set by caller */
USER_Lock();
if (local) list_add_head( &class_list, &classPtr->entry );
else list_add_tail( &class_list, &classPtr->entry );
return classPtr;
@ -437,7 +446,7 @@ static CLASS *CLASS_RegisterClass( ATOM atom, HINSTANCE hInstance, BOOL local,
* Register a builtin control class.
* This allows having both ASCII and Unicode winprocs for the same class.
*/
static ATOM register_builtin( const struct builtin_class_descr *descr )
static CLASS *register_builtin( const struct builtin_class_descr *descr )
{
ATOM atom;
CLASS *classPtr;
@ -445,11 +454,7 @@ static ATOM register_builtin( const struct builtin_class_descr *descr )
if (!(atom = GlobalAddAtomA( descr->name ))) return 0;
if (!(classPtr = CLASS_RegisterClass( atom, user32_module, FALSE,
descr->style, 0, descr->extra )))
{
GlobalDeleteAtom( atom );
return 0;
}
descr->style, 0, descr->extra ))) return 0;
classPtr->hCursor = LoadCursorA( 0, (LPSTR)descr->cursor );
classPtr->hbrBackground = descr->brush;
@ -458,7 +463,8 @@ static ATOM register_builtin( const struct builtin_class_descr *descr )
WIN_PROC_32A, WIN_PROC_CLASS );
if (descr->procW) WINPROC_SetProc( &classPtr->winprocW, descr->procW,
WIN_PROC_32W, WIN_PROC_CLASS );
return atom;
release_class_ptr( classPtr );
return classPtr;
}
@ -481,11 +487,11 @@ void CLASS_RegisterBuiltinClasses( HMODULE user32 )
extern const struct builtin_class_descr STATIC_builtin_class;
user32_module = user32;
desktop_class = register_builtin( &DESKTOP_builtin_class );
register_builtin( &BUTTON_builtin_class );
register_builtin( &COMBO_builtin_class );
register_builtin( &COMBOLBOX_builtin_class );
register_builtin( &DIALOG_builtin_class );
register_builtin( &DESKTOP_builtin_class );
register_builtin( &EDIT_builtin_class );
register_builtin( &ICONTITLE_builtin_class );
register_builtin( &LISTBOX_builtin_class );
@ -499,29 +505,24 @@ void CLASS_RegisterBuiltinClasses( HMODULE user32 )
/***********************************************************************
* CLASS_AddWindow
*
* Add a new window using this class, and return the necessary
* information for creating the window.
* Add a new window using this class, and set the necessary
* information inside the window structure.
*/
CLASS *CLASS_AddWindow( ATOM atom, HINSTANCE inst, WINDOWPROCTYPE type,
INT *winExtra, WNDPROC *winproc, DWORD *style, struct tagDCE **dce )
void CLASS_AddWindow( CLASS *class, WND *win, WINDOWPROCTYPE type )
{
CLASS *class;
if (type == WIN_PROC_16) inst = HINSTANCE_32(GetExePtr(HINSTANCE_16(inst)));
if (!(class = CLASS_FindClassByAtom( atom, inst ))) return NULL;
if (!class) class = desktop_class;
if (type == WIN_PROC_32W)
{
if (!(*winproc = class->winprocW)) *winproc = class->winprocA;
if (!(win->winproc = class->winprocW)) win->winproc = class->winprocA;
}
else
{
if (!(*winproc = class->winprocA)) *winproc = class->winprocW;
if (!(win->winproc = class->winprocA)) win->winproc = class->winprocW;
}
*winExtra = class->cbWndExtra;
*style = class->style;
*dce = class->dce;
return class;
win->class = class;
win->clsStyle = class->style;
win->dce = class->dce;
}
@ -612,10 +613,7 @@ ATOM WINAPI RegisterClassEx16( const WNDCLASSEX16 *wc )
if (!(atom = GlobalAddAtomA( MapSL(wc->lpszClassName) ))) return 0;
if (!(classPtr = CLASS_RegisterClass( atom, hInstance, !(wc->style & CS_GLOBALCLASS),
wc->style, wc->cbClsExtra, wc->cbWndExtra )))
{
GlobalDeleteAtom( atom );
return 0;
}
TRACE("atom=%04x wndproc=%p hinst=%p bg=%04x style=%08x clsExt=%d winExt=%d class=%p\n",
atom, wc->lpfnWndProc, hInstance,
@ -630,6 +628,7 @@ ATOM WINAPI RegisterClassEx16( const WNDCLASSEX16 *wc )
WINPROC_SetProc( &classPtr->winprocA, (WNDPROC)wc->lpfnWndProc,
WIN_PROC_16, WIN_PROC_CLASS );
CLASS_SetMenuNameA( classPtr, MapSL(wc->lpszMenuName) );
release_class_ptr( classPtr );
return atom;
}
@ -655,10 +654,7 @@ ATOM WINAPI RegisterClassExA( const WNDCLASSEXA* wc )
if (!(classPtr = CLASS_RegisterClass( atom, instance, !(wc->style & CS_GLOBALCLASS),
wc->style, wc->cbClsExtra, wc->cbWndExtra )))
{
GlobalDeleteAtom( atom );
return 0;
}
TRACE("atom=%04x wndproc=%p hinst=%p bg=%p style=%08x clsExt=%d winExt=%d class=%p\n",
atom, wc->lpfnWndProc, instance, wc->hbrBackground,
@ -670,6 +666,7 @@ ATOM WINAPI RegisterClassExA( const WNDCLASSEXA* wc )
classPtr->hbrBackground = wc->hbrBackground;
WINPROC_SetProc( &classPtr->winprocA, wc->lpfnWndProc, WIN_PROC_32A, WIN_PROC_CLASS );
CLASS_SetMenuNameA( classPtr, wc->lpszMenuName );
release_class_ptr( classPtr );
return atom;
}
@ -695,10 +692,7 @@ ATOM WINAPI RegisterClassExW( const WNDCLASSEXW* wc )
if (!(classPtr = CLASS_RegisterClass( atom, instance, !(wc->style & CS_GLOBALCLASS),
wc->style, wc->cbClsExtra, wc->cbWndExtra )))
{
GlobalDeleteAtom( atom );
return 0;
}
TRACE("atom=%04x wndproc=%p hinst=%p bg=%p style=%08x clsExt=%d winExt=%d class=%p\n",
atom, wc->lpfnWndProc, instance, wc->hbrBackground,
@ -710,6 +704,7 @@ ATOM WINAPI RegisterClassExW( const WNDCLASSEXW* wc )
classPtr->hbrBackground = wc->hbrBackground;
WINPROC_SetProc( &classPtr->winprocW, wc->lpfnWndProc, WIN_PROC_32W, WIN_PROC_CLASS );
CLASS_SetMenuNameW( classPtr, wc->lpszMenuName );
release_class_ptr( classPtr );
return atom;
}
@ -737,22 +732,29 @@ BOOL WINAPI UnregisterClassA( LPCSTR className, HINSTANCE hInstance )
*/
BOOL WINAPI UnregisterClassW( LPCWSTR className, HINSTANCE hInstance )
{
CLASS *classPtr;
BOOL ret = FALSE;
CLASS *classPtr = NULL;
ATOM atom = HIWORD(className) ? GlobalFindAtomW( className ) : LOWORD(className);
TRACE("%s %p %x\n",debugstr_w(className), hInstance, atom);
if (!atom)
{
SetLastError( ERROR_CLASS_DOES_NOT_EXIST );
return FALSE;
}
if (!hInstance) hInstance = GetModuleHandleW( NULL );
USER_Lock();
if (atom && (classPtr = CLASS_FindClassByAtom( atom, hInstance )))
SERVER_START_REQ( destroy_class )
{
ret = CLASS_FreeClass( classPtr );
req->atom = atom;
req->instance = hInstance;
if (!wine_server_call_err( req )) classPtr = reply->client_ptr;
}
else SetLastError( ERROR_CLASS_DOES_NOT_EXIST );
USER_Unlock();
return ret;
SERVER_END_REQ;
if (classPtr) CLASS_FreeClass( classPtr );
return (classPtr != NULL);
}
@ -1286,6 +1288,7 @@ BOOL16 WINAPI GetClassInfoEx16( HINSTANCE16 hInst16, SEGPTR name, WNDCLASSEX16 *
wc->lpszClassName = (SEGPTR)0;
wc->lpszMenuName = CLASS_GetMenuName16( classPtr );
wc->lpszClassName = name;
release_class_ptr( classPtr );
/* We must return the atom of the class here instead of just TRUE. */
return atom;
@ -1320,6 +1323,7 @@ BOOL WINAPI GetClassInfoExA( HINSTANCE hInstance, LPCSTR name, WNDCLASSEXA *wc )
wc->hbrBackground = (HBRUSH)classPtr->hbrBackground;
wc->lpszMenuName = CLASS_GetMenuNameA( classPtr );
wc->lpszClassName = name;
release_class_ptr( classPtr );
/* We must return the atom of the class here instead of just TRUE. */
return atom;
@ -1354,6 +1358,7 @@ BOOL WINAPI GetClassInfoExW( HINSTANCE hInstance, LPCWSTR name, WNDCLASSEXW *wc
wc->hbrBackground = (HBRUSH)classPtr->hbrBackground;
wc->lpszMenuName = CLASS_GetMenuNameW( classPtr );
wc->lpszClassName = name;
release_class_ptr( classPtr );
/* We must return the atom of the class here instead of just TRUE. */
return atom;

49
windows/win.c
View File

@ -65,23 +65,13 @@ static void *user_handles[NB_USER_HANDLES];
static WND *create_window_handle( HWND parent, HWND owner, ATOM atom,
HINSTANCE instance, WINDOWPROCTYPE type )
{
BOOL res;
WORD index;
WND *win;
DCE *dce;
INT extra_bytes;
DWORD clsStyle;
WNDPROC winproc;
struct tagCLASS *class;
struct tagCLASS *class = NULL;
user_handle_t handle = 0;
int extra_bytes = 0;
if (!(class = CLASS_AddWindow( atom, instance, type, &extra_bytes, &winproc, &clsStyle, &dce )))
return NULL;
if (!(win = HeapAlloc( GetProcessHeap(), 0, sizeof(WND) + extra_bytes - sizeof(win->wExtra) )))
return NULL;
USER_Lock();
if (type == WIN_PROC_16) instance = HINSTANCE_32(GetExePtr(HINSTANCE_16(instance)));
SERVER_START_REQ( create_window )
{
@ -89,29 +79,44 @@ static WND *create_window_handle( HWND parent, HWND owner, ATOM atom,
req->owner = owner;
req->atom = atom;
req->instance = instance;
req->extra = extra_bytes;
if ((res = !wine_server_call_err( req ))) handle = reply->handle;
if (!wine_server_call_err( req ))
{
handle = reply->handle;
extra_bytes = reply->extra;
class = reply->class_ptr;
}
}
SERVER_END_REQ;
if (!res)
if (!handle)
{
USER_Unlock();
HeapFree( GetProcessHeap(), 0, win );
WARN( "error %ld creating window\n", GetLastError() );
return NULL;
}
if (!(win = HeapAlloc( GetProcessHeap(), 0, sizeof(WND) + extra_bytes - sizeof(win->wExtra) )))
{
SERVER_START_REQ( destroy_window )
{
req->handle = handle;
wine_server_call( req );
}
SERVER_END_REQ;
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
return NULL;
}
USER_Lock();
index = LOWORD(handle) - FIRST_USER_HANDLE;
assert( index < NB_USER_HANDLES );
user_handles[index] = win;
win->hwndSelf = handle;
win->dwMagic = WND_MAGIC;
win->irefCount = 1;
win->class = class;
win->winproc = winproc;
win->dce = dce;
win->clsStyle = clsStyle;
win->cbWndExtra = extra_bytes;
memset( win->wExtra, 0, extra_bytes );
CLASS_AddWindow( class, win, type );
return win;
}