gtk/text_view.go
func (v *TextView) GetRightMargin() int {
	c := C.gtk_text_view_get_right_margin(v.native())
	return int(c)
}
func (v *TextView) GetRightMargin() int {
	c := C.gtk_text_view_get_right_margin(v.native())
	return int(c)
}
// GetRightMargin is a wrapper around gtk_text_view_get_right_margin().