case WM_PAINT://處理繪圖消息
hDC=BeginPaint(hWnd,&PtStr);
SetMapMode(hDC,MM_ANISOTROPIC);//設置映射模式
hPen=(HPEN)GetStockObject(BLACK_PEN);//設置畫筆為系統預定義的黑色畫筆
hBrush=(HBRUSH)GetStockObject(DKGRAY_BRUSH);//深灰色畫刷
SelectObject(hDC,hBrush);//選擇畫刷
SelectObject(hDC,hPen);//選擇畫筆
RoundRect(hDC,50,120,100,200,15,15);//圓角矩形
hBrush=(HBRUSH)GetStockObject(LTGRAY_BRUSH);//淡灰色畫刷
SelectObject(hDC,hBrush);//選擇畫刷
Ellipse(hDC,150,50,200,150);//橢圓
hBrush=(HBRUSH)GetStockObject(HOLLOW_BRUSH);//采用系統預定義的虛化刷
SelectObject(hDC,hBrush);//選擇畫刷
Pie(hDC,250,50,300,100,250,50,300,50);//餅形
EndPaint(hWnd,&PtStr);//結束繪圖
return 0;