Zebediah Figura <z.figura12(a)gmail.com> writes:
diff --git a/dlls/user32/message.c b/dlls/user32/message.c index 860ceefc38d..b0ab5be902b 100644 --- a/dlls/user32/message.c +++ b/dlls/user32/message.c @@ -3836,6 +3836,12 @@ BOOL WINAPI DECLSPEC_HOTPATCH GetMessageW( MSG *msg, HWND hwnd, UINT first, UINT HANDLE server_queue = get_server_queue_handle(); unsigned int mask = QS_POSTMESSAGE | QS_SENDMESSAGE; /* Always selected */
+ if (hwnd && !IsWindow( hwnd )) + { + SetLastError( ERROR_INVALID_WINDOW_HANDLE ); + return -1; + }
It needs to accept at least -1, and probably also 0xffff. It would also be interesting to check other functions like PeekMessage(), and maybe move the test to some inner function. -- Alexandre Julliard julliard(a)winehq.org