Change Form window background : Form Frame Window « GUI Windows Form « C# / C Sharp

Change Form window background

Change Form window background
using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

public class Form1 : System.Windows.Forms.Form{
    private System.ComponentModel.IContainer components;

  public Form1(){

  #region Windows Form Designer generated code
  private void InitializeComponent(){
      this.components = new System.ComponentModel.Container();
      this.timer1 = new System.Windows.Forms.Timer(this.components);

      this.timer1.Enabled = true;
      this.timer1.Tick += new System.EventHandler(this.timer1_Tick);

      this.AutoScaleBaseSize = new System.Drawing.Size(6, 15);
      this.ClientSize = new System.Drawing.Size(292, 260);
      this.Name = "Form1";
      this.Text = "LinearGradientBrush Demo";
      this.Load += new System.EventHandler(this.Form1_Load);
      this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);


  static void Main(){
    Application.Run(new Form1());

    private void Form1_Load(object sender, System.EventArgs e) {
      this.BackColor = Color.FromArgb(255, 0, 0, 255);  

    private System.Windows.Forms.Timer timer1;

    private float angle = 0;

    private LinearGradientBrush GetBrush()
      return new LinearGradientBrush(
        new Rectangle( 20, 20, 200, 100),

    private void Rotate( Graphics graphics, LinearGradientBrush brush )
      graphics.FillRectangle(brush, brush.Rectangle);

    private void Rotate(Graphics graphics)
      angle += 5 % 360;
      Rotate(graphics, GetBrush());

    private void timer1_Tick(object sender, System.EventArgs e)

    private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)


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