From 3f80c9f3c07e05831d325a702050cc7e3e3f26db Mon Sep 17 00:00:00 2001
From: Vincent Wei <vincent@minigui.org>
Date: Thu, 12 Dec 2019 15:01:44 +0800
Subject: [PATCH] check surface for GetVideoHandle

---
 src/newgdi/gdi.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/newgdi/gdi.c b/src/newgdi/gdi.c
index e51d6ea0..0adcfdf0 100644
--- a/src/newgdi/gdi.c
+++ b/src/newgdi/gdi.c
@@ -3746,7 +3746,10 @@ MG_EXPORT BOOL GUIAPI IsWindowDC (HDC hdc)
 MG_EXPORT GHANDLE GetVideoHandle (HDC hdc)
 {
     PDC pdc = dc_HDC2PDC (hdc);
-    return (GHANDLE)pdc->surface->video;
+    if (pdc->surface)
+        return (GHANDLE)pdc->surface->video;
+
+    return NULL;
 }
 
 #ifdef _MGGAL_DRM