C# WInFomr 窗体圆角

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53

#region 设置窗体圆角         /// <summary>         /// 设置窗体圆角         /// </summary>         /// <param name="f"></param>         public static void FormRounded(this Form f)         {             f.Resize += (object sender, EventArgs e) =>             {                 if (f.WindowState == FormWindowState.Normal)                 {                     f.SetWindowRegion();                 }                 else                 {                     f.Region = null;                 }             };         }         private static void SetWindowRegion(this Form f)         {             System.Drawing.Drawing2D.GraphicsPath FormPath;             FormPath = new System.Drawing.Drawing2D.GraphicsPath();             Rectangle rect = new Rectangle(0, 0, f.Width, f.Height);             FormPath = GetRoundedRectPath(rect, 10);             f.Region = new Region(FormPath);         }         /// <summary>         ///         /// </summary>         /// <param name="rect">窗体大小</param>         /// <param name="radius">圆角大小</param>         /// <returns></returns>         private static GraphicsPath GetRoundedRectPath(Rectangle rect, int radius)         {             int diameter = radius;             Rectangle arcRect = new Rectangle(rect.Location, new Size(diameter, diameter));             GraphicsPath path = new GraphicsPath();               path.AddArc(arcRect, 180, 90);//左上角               arcRect.X = rect.Right - diameter;//右上角             path.AddArc(arcRect, 270, 90);               arcRect.Y = rect.Bottom - diameter;// 右下角             path.AddArc(arcRect, 0, 90);               arcRect.X = rect.Left;// 左下角             path.AddArc(arcRect, 90, 90);             path.CloseFigure();             return path;         }         #endregion 设置窗体圆角