X-Git-Url: http://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.1%2Fcinelerra%2Fcanvas.h;h=89a7eb8268e375b6686df39e319ef5e79f3c9cb7;hb=efb3600851fd27b13d3053ffbdb6434535580bfd;hp=27336588f67f166125b6a13d64dc86056837da22;hpb=6fd57106820e676e368399d16b925bdc78d34621;p=goodguy%2Fhistory.git

diff --git a/cinelerra-5.1/cinelerra/canvas.h b/cinelerra-5.1/cinelerra/canvas.h
index 27336588..89a7eb82 100644
--- a/cinelerra-5.1/cinelerra/canvas.h
+++ b/cinelerra-5.1/cinelerra/canvas.h
@@ -25,6 +25,7 @@
 #include "edl.inc"
 #include "guicast.h"
 #include "mwindow.inc"
+#include "videodevice.inc"
 
 // Output for all X11 video
 
@@ -141,8 +142,11 @@ public:
 	virtual int get_xscroll() { return 0; };
 	virtual int get_yscroll() { return 0; };
 	virtual float get_zoom() { return 0; };
-// Redraws the image
+// Updates the refresh_frame
+	void update_refresh(VideoDevice *device, VFrame *output_frame);
+// Redraws the refresh_frame
 	virtual void draw_refresh(int flush = 1) {};
+	virtual void clear(int flush=1);
 
 // Get top left offset of canvas relative to output.
 // Normally negative.  Can be positive if output is smaller than canvas.