dview_callback   3282 src/diffviewer/ydiff.c         dview = (WDiff *) widget_find_by_type (CONST_WIDGET (h), dview_callback);
dview_callback   3305 src/diffviewer/ydiff.c     dview = (const WDiff *) widget_find_by_type (CONST_WIDGET (h), dview_callback);
dview_callback   3344 src/diffviewer/ydiff.c     widget_init (w, &r, dview_callback, dview_mouse_callback);