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//声明:
Rectangle(
  DC: HDC;                {设备环境句柄}
  X1, Y1, X2, Y2: Integer {两个点的坐标}
): BOOL;

//举例: procedure TForm1.FormPaint(Sender: TObject); const x1 = 20; y1 = 20; x2 = 200; y2 = 100; begin Rectangle(Canvas.Handle, x1,y1, x2,y2); end;
//效果图:

posted on 2008-02-09 16:45  万一  阅读(...)  评论(...编辑  收藏