OnDraw中画三角形和矩形的VC代码

本人技术太菜，留着以做后用:
画三角形的VC代码： 
   CPen newPen(PS_DASHDOTDOT,2,(COLORREF)0);
 pDC->SelectObject(&newPen);
 pDC->MoveTo(110,110);
 pDC->LineTo(110,10);
 pDC->LineTo(110,120);
 pDC->LineTo(10,10);
 pDC->SelectStockObject(BLACK_PEN);
 
画矩形的VC代码：
 CBrush brush(RGB(255,0,0));
 CRect rect;
 GetClientRect(&rect);
 pDC->TextOut(0,rect.bottom,"bottom");
 pDC->TextOut(0,rect.left,"left");
 pDC->FillRect(CRect(rect.left+112,rect.top+112,rect.right-112,rect.Height()-112),&brush);
 brush.DeleteObject();