dshowvideosink: Fix compilation on x64 platforms

diff --git a/sys/dshowvideosink/dshowvideosink.cpp b/sys/dshowvideosink/dshowvideosink.cpp
index 119962ee3eec92cfd87d688778c41baf122559bc..eb704fcb85f0506e9908a78d8150b05292b6a4df 100644 (file)
--- a/sys/dshowvideosink/dshowvideosink.cpp
+++ b/sys/dshowvideosink/dshowvideosink.cpp
@@ -30,6 +30,10 @@
 
 #include "windows.h"
 
+#ifdef _WIN64
+#define GWL_WNDPROC GWLP_WNDPROC
+#endif
+
 #define WM_GRAPH_NOTIFY WM_APP + 1 /* Private message */
 
 GST_DEBUG_CATEGORY (dshowvideosink_debug);