[OPENGL32] Do not crash in IntGetCurrentDC if thread data was not allocated.

CORE-12232

diff --git a/dll/opengl/opengl32/opengl32.h b/dll/opengl/opengl32/opengl32.h
index b3e0bd0..68e5a86 100644 (file)
--- a/dll/opengl/opengl32/opengl32.h
+++ b/dll/opengl/opengl32/opengl32.h
@@ -154,7 +154,7 @@ HDC
 IntGetCurrentDC(void)
 {
     struct Opengl32_ThreadData* data = TlsGetValue(OglTlsIndex);
 IntGetCurrentDC(void)
 {
     struct Opengl32_ThreadData* data = TlsGetValue(OglTlsIndex);

-    return data->hdc;
+    return data ? data->hdc : NULL;

 }
 
 static inline
 }
 
 static inline