X-Git-Url: https://git.ucc.asn.au/?p=ipdf%2Fcode.git;a=blobdiff_plain;f=src%2Fscreen.h;h=bdadd8e9ad84326d5b37d61bf83e340ff7311ae8;hp=e24bc3fdc098a23d6b36327725438ffbe8beb91a;hb=a8297c3461718f2d9afc7a2f8ca620d320ac5f97;hpb=ea4829e265bd45b9c1b8556463d10ee1e082c6ce

diff --git a/src/screen.h b/src/screen.h
index e24bc3f..bdadd8e 100644
--- a/src/screen.h
+++ b/src/screen.h
@@ -75,6 +75,8 @@ namespace IPDF
 		
 		void ShowDebugFont(bool show = true) {m_show_debug_font = show;}
 		bool DebugFontShown() const {return m_show_debug_font;}
+
+		bool Valid() const {return m_window != NULL;}
 	private:
 		void ResizeViewport(int width, int height);
 		void DebugFontFlush();