C#绘制圆角窗体
public void SetWindowRegion()
{
System.Drawing.Drawing2D.GraphicsPath FormPath;
FormPath =
new System.Drawing.Drawing2D.GraphicsPath();
Rectangle
rect=new
Rectangle(0,22,this.Width,this.Height-22);//this.Left-10,this.Top-10,this.Width-10,this.Height-10);
FormPath = GetRoundedRectPath(rect, 30);
this.Region = new Region(FormPath);
}
private
GraphicsPath GetRoundedRectPath(Rectangle rect, int radius)
{
int diameter = radius;
Rectangle
arcRect = new Rectangle(rect.Location, new Size(diameter,
diameter));
GraphicsPath path = new GraphicsPath();
// 左上角
path.AddArc(arcRect, 180, 90);
// 右上角
arcRect.X = rect.Right - diameter;
path.AddArc(arcRect,
270, 90);
// 右下角
arcRect.Y = rect.Bottom -
diameter;
path.AddArc(arcRect, 0, 90);
// 左下角
arcRect.X = rect.Left;
path.AddArc(arcRect, 90, 90);
path.CloseFigure();
return path;
}
protected
override void OnResize(System.EventArgs e)
{
this.Region = null;
SetWindowRegion();
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