gtk/gtk_since_3_12.go
func (fb *FlowBox) GetColumnSpacing() uint {
	c := C.gtk_flow_box_get_column_spacing(fb.native())
	return uint(c)
}
func (fb *FlowBox) GetColumnSpacing() uint {
	c := C.gtk_flow_box_get_column_spacing(fb.native())
	return uint(c)
}
// GetColumnSpacing is a wrapper around gtk_flow_box_get_column_spacing()