add waveform audio icons, clear vwdw on change_source

[goodguy/history.git] / cinelerra-5.1 / cinelerra / canvas.h

diff --git a/cinelerra-5.1/cinelerra/canvas.h b/cinelerra-5.1/cinelerra/canvas.h
index c5d53703a791cd34d9e6e6bd5b432ebcf04b9875..89a7eb8268e375b6686df39e319ef5e79f3c9cb7 100644 (file)
--- a/cinelerra-5.1/cinelerra/canvas.h
+++ b/cinelerra-5.1/cinelerra/canvas.h
@@ -146,6 +146,7 @@ public:
        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.