菜鸟问题:如何在view中画一个实心的圆点呀.

我想在在view中鼠标点一下就出现一个实心的圆点,难道不是用画刷吗?
我定义了有颜色的画刷,画矩形就是有填充色的,为啥画圆却还是没有填充色的呢?
   CRect rectClient;
   GetClientRect(rectClient);
   CBrush brush1,*pOldBrush;
   int n=100;
   brush1.CreateSolidBrush(RGB(100,100,n));
   pOldBrush=pDC->SelectObject(&brush1);
   pDC->Arc(190,190,205,205,0,0,0,0);//pDC->Rectangle(0, 0, 100, 100);
   pDC->SelectObject(pOldBrush);