CDC *pDC= GetDC();
CPen pen(PS_SOLID, 1 ,0xff);
CPen* op=pDC->SelectObject(&pen);

pDC->Ellipse((int)(mWidth*0.129f), (int)(mHeight*0.399f),
(int)(mWidth*0.153f), (int)(mHeight*0.433f)); //加载灯
pDC->SelectObject(op);
pen.DeleteObject();
画出来的圆中间是白色,周围是红色，怎样让它里面也用红色填充？

我找到了办法，不知是不是最简单的？

CDC *pDC= GetDC();
CRgn rng;
rng.CreateEllipticRgn((int)(mWidth*0.129f), (int)(mHeight*0.399f),
(int)(mWidth*0.153f), (int)(mHeight*0.433f));
pDC->FillRgn(&rng, &CBrush(0xff));