winex11: Fix handling of window attributes for WS_EX_LAYERED | WS_EX_COMPOSITED.

dlls/winex11.drv/window.c

@@ -308,7 +308,7 @@ static unsigned long get_mwm_decorations( struct x11drv_win_data *data,
     if (data->shaped) return 0;
 
     if (ex_style & WS_EX_TOOLWINDOW) return 0;
-    if (ex_style & WS_EX_LAYERED) return 0;
+    if ((ex_style & (WS_EX_LAYERED | WS_EX_COMPOSITED)) == WS_EX_LAYERED) return 0;
 
     if ((style & WS_CAPTION) == WS_CAPTION)
     {
@@ -2703,7 +2703,7 @@ void X11DRV_WindowPosChanged( HWND hwnd, HWND insert_after, UINT swp_flags,
             BOOL needs_map = TRUE;
 
             /* layered windows are mapped only once their attributes are set */
-            if (NtUserGetWindowLongW( hwnd, GWL_EXSTYLE ) & WS_EX_LAYERED)
+            if ((NtUserGetWindowLongW( hwnd, GWL_EXSTYLE ) & (WS_EX_LAYERED | WS_EX_COMPOSITED)) == WS_EX_LAYERED)
                 needs_map = data->layered || IsRectEmpty( rectWindow );
             release_win_data( data );
             if (needs_icon) fetch_icon_data( hwnd, 0, 0 );