func (v *Widget) GetMarginTop() int {
	c := C.gtk_widget_get_margin_top(v.native())
	return int(c)
}
func (v *Widget) GetMarginTop() int {
	c := C.gtk_widget_get_margin_top(v.native())
	return int(c)
}
// GetMarginTop is a wrapper around gtk_widget_get_margin_top().