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.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());
}
}
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