/// <summary> /// 设置窗体的圆角矩形 /// </summary> /// <param name="form">需要设置的窗体</param> /// <param name="rgn_radius">圆角矩形的半径</param> public static void setRoundRectRgn(this Form form, int rgn_radius) { int hRgn = 0; hRgn = WindowsUtil.CreateRoundRectRgn(0, 0, form.Width, form.Height, rgn_radius, rgn_radius); WindowsUtil.SetWindowRgn(form.Handle, hRgn, true); WindowsUtil.DeleteObject(hRgn); }