[PATCH v2 4/4] winex11: Don't call X11DRV_SET_DRAWABLE with invalid drawable.

[Rémi Bernon]

From: Rémi Bernon

---
 dlls/winex11.drv/window.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dlls/winex11.drv/window.c b/dlls/winex11.drv/window.c
index 8dbf10bf25f..1e9b38c0e30 100644
--- a/dlls/winex11.drv/window.c
+++ b/dlls/winex11.drv/window.c
@@ -2458,6 +2458,7 @@ void X11DRV_GetDC( HDC hdc, HWND hwnd, HWND top, const RECT *win_rect,
         else escape.drawable = X11DRV_get_whole_window( top );
     }

+    if (!escape.drawable) return; /* don't create a GC for foreign windows */
     NtGdiExtEscape( hdc, NULL, 0, X11DRV_ESCAPE, sizeof(escape), (LPSTR)&escape, 0, NULL );
 }