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user32: Create the desktop window to trigger builtin class registration before accessing the class list.

This commit is contained in:
Alexandre Julliard 2013-10-28 15:24:58 +01:00
parent 0fc177fe2f
commit 4c41c20e02
1 changed files with 5 additions and 7 deletions
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12
dlls/user32/class.c
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@ -268,6 +268,8 @@ static CLASS *CLASS_FindClass( LPCWSTR name, HINSTANCE hinstance )
struct list *ptr;
ATOM atom = get_int_atom_value( name );
GetDesktopWindow(); /* create the desktop window to trigger builtin class registration */
USER_Lock();
LIST_FOR_EACH( ptr, &class_list )
@ -507,7 +509,7 @@ ATOM WINAPI RegisterClassExA( const WNDCLASSEXA* wc )
CLASS *classPtr;
HINSTANCE instance;
InitOnceExecuteOnce( &init_once, register_builtins, NULL, NULL );
GetDesktopWindow(); /* create the desktop window to trigger builtin class registration */
if (wc->cbSize != sizeof(*wc) || wc->cbClsExtra < 0 || wc->cbWndExtra < 0 ||
wc->hInstance == user32_module) /* we can't register a class for user32 */
@ -562,7 +564,7 @@ ATOM WINAPI RegisterClassExW( const WNDCLASSEXW* wc )
CLASS *classPtr;
HINSTANCE instance;
InitOnceExecuteOnce( &init_once, register_builtins, NULL, NULL );
GetDesktopWindow(); /* create the desktop window to trigger builtin class registration */
if (wc->cbSize != sizeof(*wc) || wc->cbClsExtra < 0 || wc->cbWndExtra < 0 ||
wc->hInstance == user32_module) /* we can't register a class for user32 */
@ -620,7 +622,7 @@ BOOL WINAPI UnregisterClassW( LPCWSTR className, HINSTANCE hInstance )
{
CLASS *classPtr = NULL;
InitOnceExecuteOnce( &init_once, register_builtins, NULL, NULL );
GetDesktopWindow(); /* create the desktop window to trigger builtin class registration */
SERVER_START_REQ( destroy_class )
{
@ -1122,8 +1124,6 @@ BOOL WINAPI GetClassInfoExA( HINSTANCE hInstance, LPCSTR name, WNDCLASSEXA *wc )
TRACE("%p %s %p\n", hInstance, debugstr_a(name), wc);
InitOnceExecuteOnce( &init_once, register_builtins, NULL, NULL );
if (!wc)
{
SetLastError( ERROR_NOACCESS );
@ -1175,8 +1175,6 @@ BOOL WINAPI GetClassInfoExW( HINSTANCE hInstance, LPCWSTR name, WNDCLASSEXW *wc
TRACE("%p %s %p\n", hInstance, debugstr_w(name), wc);
InitOnceExecuteOnce( &init_once, register_builtins, NULL, NULL );
if (!wc)
{
SetLastError( ERROR_NOACCESS );