vc如何画圆，并填充颜色

CClientDC dc(this);
CPen pen(PS_SOLID,m_nLinewidth,m_ncolor);
dc.SelectObject(&pen);
CBrush *pBrush=new CBrush(m_ncolor);
dc.SelectObject(pBrush);

dc.Ellipse(point.x-5,point.y-5,point.x+5,point.y+5);