window
using the given style and state and shadow type, leaving a
gap in one side.gtkPaintShadowGap(object, window, state.type, shadow.type, area = NULL, widget = NULL, detail = NULL, x, y, width, height, gap.side, gap.x, gap.width)objectGtkStylewindowstate.typeshadow.typeareaNULL if the
output should not be clipped. [ allow-none ]widgetdetailxywidthheightgap.sidegap.xgap.width