gtk/widget.go
func (v *Widget) GetMarginBottom() int {
	c := C.gtk_widget_get_margin_bottom(v.native())
	return int(c)
}
func (v *Widget) GetMarginBottom() int {
	c := C.gtk_widget_get_margin_bottom(v.native())
	return int(c)
}
// GetMarginBottom is a wrapper around gtk_widget_get_margin_bottom().