using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Windows.Forms; class GradientPen: Form { public static void Main() { Application.Run(new GradientPen()); } public GradientPen() { ResizeRedraw = true; } protected override void OnPaint(PaintEventArgs pea) { DoPage(pea.Graphics, ForeColor,ClientSize.Width, ClientSize.Height); } protected void DoPage(Graphics grfx, Color clr, int cx, int cy) { Brush lgbrush = new LinearGradientBrush( new Rectangle(0, 0, cx, cy), Color.White, Color.Black, LinearGradientMode.BackwardDiagonal); Pen pen = new Pen(lgbrush, Math.Min(cx, cy) / 25); pen.Alignment = PenAlignment.Inset; grfx.DrawRectangle(pen, 0, 0, cx, cy); grfx.DrawLine(pen, 0, 0, cx, cy); grfx.DrawLine(pen, 0, cy, cx, 0); } }