func (v *Grid) SetRowSpacing(spacing uint) {
	C.gtk_grid_set_row_spacing(v.native(), C.guint(spacing))
}
func (v *Grid) SetRowSpacing(spacing uint) {
	C.gtk_grid_set_row_spacing(v.native(), C.guint(spacing))
}
// SetRowSpacing() is a wrapper around gtk_grid_set_row_spacing().