Kod: Tümünü seç
using System;
using System.Drawing;
using System.Drawing.Text;
using System.Drawing.Imaging;
using System.Drawing.Drawing2D;
namespace VerifyLibrary
{
public class VerifyImageKey
{
#region Private Members
private int m_iCharWidth = 20;
private int m_iImageWidth = 0;
private int m_iImageHeight = 0;
private byte m_iChaLength;
private string m_sVerfyKey = string.Empty;
private Brush oFontColor = new SolidBrush(Color.DarkBlue);
private Brush oBackColor = new SolidBrush(Color.White);
#endregion
#region Properties
public string VerifyKey
{
get
{
if (this.m_sVerfyKey.Equals(string.Empty))
throw new Exception("Image not Generated !");
return this.m_sVerfyKey;
}
}
public int CharWidth
{
get
{
return this.m_iCharWidth;
}
set
{
if (value < 10)
throw new Exception("Char Width Must Minimum 10!");
this.m_iCharWidth = value;
}
}
public byte CharacterLength
{
get
{
return this.m_iChaLength;
}
set
{
if (!(value > 0))
throw new Exception("You Must Enter Minimum One Character Length !");
this.m_iChaLength = value;
}
}
public Brush FontColor
{
get
{
return this.oFontColor;
}
set
{
this.oFontColor = value;
}
}
public Brush BackColor
{
get
{
return this.oBackColor;
}
set
{
this.oBackColor = value;
}
}
#endregion
#region Constructures
public VerifyImageKey(byte iCharLength)
{
this.m_iChaLength = iCharLength;
this.m_iImageWidth = this.m_iCharWidth * this.m_iChaLength + 20; // Set ImageWidth value
this.m_iImageHeight = this.m_iCharWidth * 2; // Set ImageHeight value
}
public VerifyImageKey(byte iCharLength, int iCharWidth)
{
this.m_iChaLength = iCharLength;
this.CharWidth = iCharWidth;
this.m_iImageWidth = this.m_iCharWidth * this.m_iChaLength + 20; // Set ImageWidth value
this.m_iImageHeight = this.m_iCharWidth * 2; // Set ImageHeight value
}
#endregion
#region Methods
public Bitmap GenerateImage()
{
Bitmap oBitmap = new Bitmap(this.m_iImageWidth, this.m_iImageHeight);
Graphics oGraphics = Graphics.FromImage(oBitmap);
oGraphics.TextRenderingHint = TextRenderingHint.AntiAlias;
Rectangle oRectangle = new Rectangle(0, 0, this.m_iImageWidth, this.m_iImageHeight);
oGraphics.FillRectangle(oBackColor, oRectangle);
m_sVerfyKey = GenerateStringKey();
oGraphics.DrawString(this.m_sVerfyKey, new Font("Verdana", this.m_iCharWidth, FontStyle.Regular, GraphicsUnit.Point), oFontColor, oRectangle);
oBitmap = FillDirty(oBitmap);
oGraphics.Dispose();
return oBitmap;
}
private Bitmap FillDirty(Bitmap oBitmap)
{
Graphics oGraphics = Graphics.FromImage(oBitmap);
Pen oPen;
Random oRand = new Random();
for (int i = 0; i < this.m_iChaLength * 10; i++)
{
oPen = new Pen(Color.FromArgb(oRand.Next(0, 255), oRand.Next(0, 255), oRand.Next(0, 255)));
oGraphics.DrawBezier(oPen, new Point(oRand.Next(0, m_iImageWidth), oRand.Next(0, m_iImageWidth)),
new Point(oRand.Next(0, m_iImageWidth), oRand.Next(0, m_iImageWidth)),
new Point(oRand.Next(0, m_iImageWidth), oRand.Next(0, m_iImageWidth)),
new Point(oRand.Next(0, m_iImageWidth), oRand.Next(0, m_iImageWidth)));
}
oGraphics.Dispose();
return oBitmap;
}
private string GenerateStringKey()
{
string sKey = string.Empty;
Random oRand = new Random();
int iChar;
for (int i = 0; i < this.m_iChaLength; i++)
{
iChar = oRand.Next(48, 91);
if (iChar > 57 && iChar < 65)
{
i--;
continue;
}
sKey += (char)iChar;
}
return sKey;
}
#endregion
}
}
Kod: Tümünü seç
VerifyImageKey oVerify = new VerifyImageKey(5, 20);
Bitmap oBitmap = oVerify.GenerateImage();
sKey = oVerify.VerifyKey;
