MFC利用CPen与CBrush绘制实心圆

void CMyPaintView::MDrawRedArc(CPoint point, int mSize)
{

CPoint tmppoint;
tmppoint.x=point.x-mSize;
tmppoint.y=point.y-m_Size;

CPen pNewPen;
CPen *pOldPen;
pNewPen.CreatePen(PS_SOLID,1,RGB(255,0,0));
pOldPen = pDLMemDC.SelectObject(&pNewPen);

//定义画刷填充圆
CBrush fillbrush;
CBrush *oldbrush;
fillbrush.CreateSolidBrush(RGB(255,0,0));
oldbrush=pDLMemDC.SelectObject(&fillbrush);

pDLMemDC.Ellipse(tmppoint.x,tmppoint.y,tmppoint.x+mSize,tmppoint.y+mSize);

pDLMemDC.SelectObject(oldbrush);
pDLMemDC.SelectObject(pOldPen);
fillbrush.DeleteObject();
pNewPen.DeleteObject();

}