빨간원이 네모상자 위에 오게 하고 싶은데 어떻게하나요?

void CChildView::OnPaint() {

CPaintDC dc(this);

dc.Rectangle(pX, pY, pX + 100, pY + 100);

}




void CChildView::OnLButtonDown(UINT nFlags, CPoint point){

Invalidate(false);

CClientDC dc(this);

CPen pen;

pen.CreatePen(PS_SOLID, 1, RGB(255, 0, 0));

CPen *pOldPen = dc.SelectObject(&pen);


posX = point.x;

posY = point.y;

dc.Ellipse(posX-25, posY-25, posX + 25, posY + 25);

}