user32: Switch to normal window drawing on SetLayeredWindowAttributes call.

dlls/user32/win.c

@@ -3749,7 +3749,11 @@ BOOL WINAPI SetLayeredWindowAttributes( HWND hwnd, COLORREF key, BYTE alpha, DWO
     }
     SERVER_END_REQ;
 
-    if (ret) USER_Driver->pSetLayeredWindowAttributes( hwnd, key, alpha, flags );
+    if (ret)
+    {
+        USER_Driver->pSetLayeredWindowAttributes( hwnd, key, alpha, flags );
+        update_window_state( hwnd );
+    }
 
     return ret;
 }

dlls/winemac.drv/window.c

@@ -1561,6 +1561,8 @@ void CDECL macdrv_SetLayeredWindowAttributes(HWND hwnd, COLORREF key, BYTE alpha
     if (data)
     {
         data->layered = TRUE;
+        data->ulw_layered = FALSE;
+        if (data->surface) set_surface_use_alpha(data->surface, FALSE);
         if (data->cocoa_window)
         {
             sync_window_opacity(data, key, alpha, FALSE, flags);

dlls/winex11.drv/window.c

@@ -2535,6 +2535,8 @@ void CDECL X11DRV_SetLayeredWindowAttributes( HWND hwnd, COLORREF key, BYTE alph
 
     if (data)
     {
+        set_window_visual( data, &default_visual );
+
         if (data->whole_window)
             sync_window_opacity( data->display, data->whole_window, key, alpha, flags );
         if (data->surface)