user32: Add a Wine-specific entry point to set the pixel format of a window.

dlls/user32/user32.spec

@@ -779,3 +779,4 @@
 # or 'wine_' (for user-visible functions) to avoid namespace conflicts.
 #
 @ cdecl __wine_send_input(long ptr)
+@ cdecl __wine_set_pixel_format(long long)

dlls/user32/win.c

@@ -3592,6 +3592,21 @@ BOOL WINAPI SwitchDesktop( HDESK hDesktop)
     return TRUE;
 }
 
+
+/***********************************************************************
+ *           __wine_set_pixel_format
+ */
+BOOL CDECL __wine_set_pixel_format( HWND hwnd, int format )
+{
+    RECT window_rect, client_rect;
+
+    WIN_GetRectangles( hwnd, COORDS_PARENT, &window_rect, &client_rect );
+    return set_window_pos( hwnd, 0, SWP_NOSIZE | SWP_NOMOVE | SWP_NOCLIENTSIZE | SWP_NOCLIENTMOVE |
+                           SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOREDRAW,
+                           &window_rect, &client_rect, NULL );
+}
+
+
 /*****************************************************************************
  *              SetLayeredWindowAttributes (USER32.@)
  */

dlls/winex11.drv/opengl.c

@@ -1286,6 +1286,8 @@ static BOOL set_win_format( HWND hwnd, const struct wgl_pixel_format *format )
         free_gl_drawable( prev );
     XSaveContext( gdi_display, (XID)hwnd, gl_hwnd_context, (char *)gl );
     LeaveCriticalSection( &context_section );
+
+    __wine_set_pixel_format( hwnd, pixel_format_index( format ));
     return TRUE;
 }
 

include/wine/wgl_driver.h

@@ -2853,5 +2853,6 @@ struct opengl_funcs
     USE_GL_FUNC(glViewport)
 
 extern struct opengl_funcs * CDECL __wine_get_wgl_driver( HDC hdc, UINT version );
+extern BOOL CDECL __wine_set_pixel_format( HWND hwnd, int format );
 
 #endif /* __WINE_WGL_DRIVER_H */