X-Git-Url: https://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.1%2Fcinelerra%2Fcanvas.h;h=51b7a2010d769f0614ce7fc28dd7fcb91207c5a9;hb=22c6251d37911a11e322bf7518e6a992ea0bb6c7;hp=dd3b574d05952f4b9c638ddaace21b0abecc9bb0;hpb=21af3206552d78919dad02f83c08439bedb05c89;p=goodguy%2Fcinelerra.git

diff --git a/cinelerra-5.1/cinelerra/canvas.h b/cinelerra-5.1/cinelerra/canvas.h
index dd3b574d..51b7a201 100644
--- a/cinelerra-5.1/cinelerra/canvas.h
+++ b/cinelerra-5.1/cinelerra/canvas.h
@@ -126,6 +126,10 @@ public:
 // Redraws the refresh_frame
 	virtual void draw_refresh(int flush = 1) {};
 	virtual void clear(int flash=1);
+// draw scope
+	virtual int scope_on() { return 0; }
+	virtual void draw_scope(VFrame *frame, int refresh) {}
+	void process_scope(VideoDevice *video, VFrame *frame);
 
 // Get top left offset of canvas relative to output.
 // Normally negative.  Can be positive if output is smaller than canvas.