Transparent color

   
 
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

public class Form1 : Form
{

  public Form1() {
        InitializeComponent();
  }
  private void Form1_Paint(object sender, PaintEventArgs e)
  {
    Bitmap bitmap = new Bitmap("winter.jpg");
    TextureBrush brush = new TextureBrush(bitmap);
    e.Graphics.FillRectangle(brush, ClientRectangle);
        bitmap.Dispose();

    Color color = Color.Yellow;
    int penWidth = 80;
    Pen opaquePen = new Pen(color, penWidth);
    e.Graphics.DrawLine(opaquePen, 0, 50, 200, 20);
        opaquePen.Dispose();

    Color semiTransparentColor = Color.FromArgb(128, color.R, color.G, color.B);
    Pen semiTransparentPen = new Pen(semiTransparentColor, penWidth);
    e.Graphics.DrawLine(semiTransparentPen, 0, 200, 200, 140);
        semiTransparentPen.Dispose();

    Color veryTransparentColor = Color.FromArgb(77, color.R, color.G, color.B);
    Pen veryTransparentPen = new Pen(veryTransparentColor, penWidth);
    e.Graphics.DrawLine(veryTransparentPen, 0, 350, 200, 260);
        veryTransparentPen.Dispose();
  
    Brush transparentBrush = new SolidBrush(semiTransparentColor);
    e.Graphics.DrawString("www.kutayzorlu.com/java2s/com", new Font("Verdana", 36, FontStyle.Bold),
      transparentBrush, 80, 150);
  }

  private void InitializeComponent()
  {
    this.SuspendLayout();
    // 
    // Form1
    // 
    this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
    this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
    this.ClientSize = new System.Drawing.Size(292, 266);
    this.Name = "Form1";
    this.Text = "Alpha Blending";
    this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);
    this.ResumeLayout(false);

  }


  [STAThread]
  static void Main()
  {
    Application.EnableVisualStyles();
    Application.Run(new Form1());
  }

}