using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Drawing.Drawing2D;
public class Form1 : System.Windows.Forms.Form {
[STAThread]
static void Main() {
Application.Run(new Form1());
}
protected override void OnPaint(PaintEventArgs e) {
Graphics g = e.Graphics;
Font f = new Font(new FontFamily("Times New Roman"), 10);
Brush fb = new SolidBrush(Color.Black);
LinearGradientBrush lGB;
Color cR = Color.Red, cW = Color.White;
int w = 100, h = 70;
g.DrawString("Horizontal", f, fb, 10, 5);
Rectangle rec = new Rectangle(10, 20, w, h);
LinearGradientMode lGM = LinearGradientMode.Horizontal;
lGB = new LinearGradientBrush(rec, cR, cW, lGM);
g.FillRectangle(lGB, rec);
g.DrawString("Vertical", f, fb, w + 20, 5);
rec.Offset(w + 10, 0);
lGM = LinearGradientMode.Vertical;
lGB = new LinearGradientBrush(rec, cR, cW, lGM);
g.FillRectangle(lGB, rec);
g.DrawString("ForwardDiagonal", f, fb, 10, h + 25);
rec.Offset(-w - 10, h + 20);
lGM = LinearGradientMode.ForwardDiagonal;
lGB = new LinearGradientBrush(rec, cR, cW, lGM);
g.FillRectangle(lGB, rec);
g.DrawString("BackwardDiagonal", f, fb, w + 20, h + 25);
rec.Offset(w + 10, 0);
lGM = LinearGradientMode.BackwardDiagonal;
lGB = new LinearGradientBrush(rec, cR, cW, lGM);
g.FillRectangle(lGB, rec);
fb.Dispose();
g.Dispose();
}
}