X-Git-Url: http://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.1%2Fcinelerra%2Fcanvas.h;h=aa4879a125e28e34d763e1ab419061f6ebdaa08f;hb=49b383e5201a002e262ef98a77f5cc976b837acc;hp=27336588f67f166125b6a13d64dc86056837da22;hpb=30bdb85eb33a8ee7ba675038a86c6be59c43d7bd;p=goodguy%2Fhistory.git

diff --git a/cinelerra-5.1/cinelerra/canvas.h b/cinelerra-5.1/cinelerra/canvas.h
index 27336588..aa4879a1 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
 
@@ -96,6 +97,7 @@ public:
 	virtual int button_release_event() { return 0; };
 	virtual int button_press_event();
 	virtual int cursor_motion_event() { return 0; };
+	virtual int need_overlays() { return 1; }
 	virtual void draw_overlays() { };
 	virtual void toggle_controls() { } ;
 	virtual int get_cwindow_controls() { return 0; };
@@ -141,8 +143,11 @@ 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.