今天才发现,网上误人子弟的事还很多关于做不规窗体

关于不规窗体偶看到两种方法:

http://tech.ccidnet.com/pub/disp/Article?columnID=294&articleID=25457&pageNO=1

关键是这几句话:

   Graphics g = e.Graphics;
Rectangle mainRect = new Rectangle(0, 0, 695, 278);
Region mainRegion = new Region(mainRect);
e.Graphics.SetClip(mainRegion, CombineMode.Replace);
    Point point1 = new Point(0, 32);
Point point2 = new Point(9, 20);
Point point3 = new Point(21, 13);
Point point4 = new Point(34, 9);
    // 创建一个以点为元素的数组
Point[] curvePoints = { point1, point2, point3, point4 };
// 创建一个GraphicsPath对象并添加一条曲线
GraphicsPath myPath = new GraphicsPath();
myPath.AddCurve(curvePoints, 0, 3, 0.8f);
myPath.AddLine(36, 9, 378, 9);
point1.X=378;point1.Y=9;
point2.X=387;point2.Y=5;
point3.X=394;point3.Y=0;
Point[] curvePoints2 = { point1, point2, point3 };
myPath.AddCurve(curvePoints2, 0, 2, 0.8f);
myPath.AddLine(394, 0, 0, 0);
Region ExcludeRegion3 = new Region(myPath);
e.Graphics.ExcludeClip(ExcludeRegion3);
   
GraphicsPath myPath3 = new GraphicsPath();
point1.X=0;point1.Y=180;
point2.X=19;point2.Y=198;
point3.X=62;point3.Y=204;
point4.X=83;point4.Y=221;
Point point5 = new Point(93, 248);
Point point6 = new Point(102, 267);
Point point7 = new Point(125, 278);
Point[] curvePoints3 = { point1, point2, point3, point4,
point5, point6, point7 };
myPath3.AddCurve(curvePoints3, 0, 6, 0.8f);
myPath3.AddLine(125, 278, 90, 300);
myPath3.AddLine(90, 300, 0, 300);
Region ExcludeRegion2 = new Region(myPath3);
e.Graphics.ExcludeClip(ExcludeRegion2);
point1.X=454;point1.Y=0;
point2.X=470;point2.Y=12;
point3.X=481;point3.Y=34;
Point[] curvePoints4 = { point1, point2, point3 };
GraphicsPath myPath2 = new GraphicsPath();
myPath2.AddCurve(curvePoints4, 0, 2, 0.8f);
myPath2.AddLine(481, 30, 481, 76);
myPath2.AddLine(481, 76, 495, 76);
myPath2.AddLine(495, 76, 495, 0);
Region ExcludeRegion4 = new Region(myPath2);
e.Graphics.ExcludeClip(ExcludeRegion4);
GraphicsPath myPath5 = new GraphicsPath();
point1.X=481;point1.Y=76;
point2.X=494;point2.Y=115;
point3.X=481;point3.Y=158;
Point[] curvePoints5 = { point1, point2, point3 };
myPath5.AddCurve(curvePoints5, 0, 2, 0.8f);
myPath5.AddLine(481, 158, 481, 279);
myPath5.AddLine(481, 255, 495, 279);
myPath5.AddLine(495, 279, 495, 0);
Region ExcludeRegion6 = new Region(myPath5);
e.Graphics.ExcludeClip(ExcludeRegion6);

point1.X=480;point1.Y=250;
point2.X=469;point2.Y=264;
point3.X=446;point3.Y=278;
Point[] curvePoints6 = { point1, point2, point3 };
GraphicsPath myPath4 = new GraphicsPath();
myPath4.AddCurve(curvePoints6, 0, 2, 0.8f);
myPath4.AddLine(450, 277, 495, 279);
Region ExcludeRegion5 = new Region(myPath4);
e.Graphics.ExcludeClip(ExcludeRegion5);

e.Graphics.DrawImage(img, 0, 0, 695,278);
   
// 重设剪切好的区域
e.Graphics.ResetClip();

和这样一种:
(最好不要用:为什么,呵呵,用了就知道.)
http://www.6to23.com/s11/s11d8/s11d8d2/200416113027.htm