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-rw-r--r--src/engine/interface.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/engine/interface.h b/src/engine/interface.h
index 7809d810..1f8a02b7 100644
--- a/src/engine/interface.h
+++ b/src/engine/interface.h
@@ -71,6 +71,8 @@ void gfx_swap(); // NOT EXPOSED
 int gfx_get_video_modes(video_mode *list, int maxcount);
 void gfx_set_vsync(int val);
 
+int gfx_window_active();
+
 // textures
 /*
 	Function: gfx_load_texture