gtk/gtk_since_3_12.go
func (fb *FlowBox) GetChildAtIndex(idx int) *FlowBoxChild {
	c := C.gtk_flow_box_get_child_at_index(fb.native(), C.gint(idx))
	if c == nil {
		return nil
	}
	return wrapFlowBoxChild(glib.Take(unsafe.Pointer(c)))
}
func (fb *FlowBox) GetChildAtIndex(idx int) *FlowBoxChild {
	c := C.gtk_flow_box_get_child_at_index(fb.native(), C.gint(idx))
	if c == nil {
		return nil
	}
	return wrapFlowBoxChild(glib.Take(unsafe.Pointer(c)))
}
// GetChildAtIndex is a wrapper around gtk_flow_box_get_child_at_index()