func (fb *FlowBox) SetRowSpacing(spacing uint) {
	C.gtk_flow_box_set_row_spacing(fb.native(), C.guint(spacing))
}
func (fb *FlowBox) SetRowSpacing(spacing uint) {
	C.gtk_flow_box_set_row_spacing(fb.native(), C.guint(spacing))
}
// SetRowSpacing is a wrapper around gtk_flow_box_set_row_spacing()