if(use_mask != that.use_mask) return 0;
if(capture_mask != that.capture_mask) return 0;
if(invert_selection != that.invert_selection) return 0;
if(use_mask != that.use_mask) return 0;
if(capture_mask != that.capture_mask) return 0;
if(invert_selection != that.invert_selection) return 0;