在OnDraw函数里添加:
CRect rc(200,200,450,300);
CBrush br,*pOldBr;
br.CreateSolidBrush(RGB(128,128,128));
pOldBr = pDC->SelectObject(&br);
pDC->Rectangle(rc);
pDC->SelectObject(pOldBr);
br.DeleteObject();
br.CreateHatchBrush(HS_HORIZONTAL,RGB(0,0,0));
pOldBr = pDC->SelectObject(&br);
pDC->Rectangle(rc);
pDC->SelectObject(pOldBr);
br.DeleteObject();
运行结果为: