[Gtk-sharp-list] DrawingArea flickering - how to stop erasing background

eskimobob martin at berriman.co.uk
Tue Jul 3 21:05:55 UTC 2012

I did eventually figure this out.  The problem seemed to be that I was not
explicitly disposing of the ImageSurface.  All I had to do in the end was
dispose of the surface and then immediately recreate it before drawing onto
it - the flickering was then gone

private void UpdateViewSurface()
	if (viewSurface != null)
	viewSurface = new ImageSurface(Format.ARGB32,
main_drawingarea.Allocation.Width, main_drawingarea.Allocation.Height);

	using (Context cr = new Context(viewSurface))

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