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  • C# WinForm 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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  • 原文地址:https://www.cnblogs.com/kennyliu/p/3925668.html
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