public FileResult GetCaptchaImage()
{
CaptchaRandomImage CI = new CaptchaRandomImage();
// here 5 means I want to get 5 char long captcha
this.Session["CaptchaImageText"] = CI.GetRandomString(5);
// captcha image size and color
CI.GenerateImage(this.Session["CaptchaImageText"].ToString(), 200, 50, Color.Black, Color.LightBlue);
MemoryStream stream = new MemoryStream();
CI.Image.Save(stream, ImageFormat.Png);
stream.Seek(0, SeekOrigin.Begin);
return new FileStreamResult(stream, "image/png");
}
public FileResult GetCaptChaImage()
{
CaptchaRandomImage CI = new CaptchaRandomImage();
this.Session["CaptChaImageText"] = CI.GetRandomString(5);
CI.GenerateImage(this.Session["CaptChaImageText"].ToString(), 300, 75, Color.DarkGray, Color.White);
MemoryStream stream = new MemoryStream();
CI.Image.Save(stream, ImageFormat.Png);
stream.Seek(0, SeekOrigin.Begin);
return(new FileStreamResult(stream, "image/png"));
}
public FileResult GetCaptchaImage()
{
CaptchaRandomImage cri = new CaptchaRandomImage();
this.Session["CaptchaImageText"] = cri.GetRandomString(5);
cri.GenerateImage(this.Session["CaptchaImageText"].ToString(), 300, 75, Color.DarkGray, Color.White);
MemoryStream ms = new MemoryStream();
cri.Image.Save(ms, ImageFormat.Png);
ms.Seek(0, SeekOrigin.Begin);
return(new FileStreamResult(ms, "image/png"));
}
protected void Page_Load(object sender, EventArgs e)
{
CaptchaRandomImage CI = new CaptchaRandomImage();
string captchatext = CI.GetRandomString(5);
Session["CaptchaText"] = captchatext;
CI.GenerateImage(captchatext, 200, 50, Color.DarkGray, Color.White);
this.Response.Clear();
this.Response.ContentType = "image/jpeg";
CI.Image.Save(this.Response.OutputStream, ImageFormat.Jpeg);
CI.Dispose();
}
public FileResult CaptchaImageOlustur()
{
CaptchaRandomImage CI = new CaptchaRandomImage();
this.Session["GuvenlikKodu"] = CI.GetRandomString(5); //Burda güvenlik kodumuzun 5 karekter olması istedik
CI.GenerateImage(this.Session["GuvenlikKodu"].ToString(), 300, 75, Color.DarkGray, Color.White);
//Yukarda Güvenlik resmimizin 300x75 boyutunda olmasını ve yazının koyu gri, arkaplanıda beyaz yaptık
MemoryStream stream = new MemoryStream();
CI.Image.Save(stream, ImageFormat.Png);
stream.Seek(0, SeekOrigin.Begin);
return(new FileStreamResult(stream, "image/png"));
}
public FileResult GetCaptchaImage()
{
CaptchaRandomImage CI = new CaptchaRandomImage();
// here 5 means I want to get 5 char long captcha
this.Session["CaptchaImageText"] = CI.GetRandomString(5);
// captcha image size and color
CI.GenerateImage(this.Session["CaptchaImageText"].ToString(), 200, 50, Color.Black, Color.LightBlue);
MemoryStream stream = new MemoryStream();
CI.Image.Save(stream, ImageFormat.Png);
stream.Seek(0, SeekOrigin.Begin);
return(new FileStreamResult(stream, "image/png"));
}
protected void Page_Load(object sender, EventArgs e)
{
CaptchaRandomImage CI = new CaptchaRandomImage();
string captchaText = CI.GetRandomString(5);
Session["CaptchaText"] = captchaText;
CI.GenerateImage(captchaText, 200, 50, Color.DarkGray, Color.White);
this.Response.Clear();
this.Response.ContentType = "image/jpeg";
CI.Image.Save(this.Response.OutputStream, ImageFormat.Jpeg);
CI.Dispose();
}
[OutputCache(NoStore = true, Duration = 0, VaryByParam = "None")] // This is for output cache false
public FileResult GetCaptchaImage()
{
CaptchaRandomImage CI = new CaptchaRandomImage();
this.Session["CaptchaImageText"] = CI.GetRandomString(5); // here 5 means I want to get 5 char long captcha
//CI.GenerateImage(this.Session["CaptchaImageText"].ToString(), 300, 75);
// Or We can use another one for get custom color Captcha Image
CI.GenerateImage(this.Session["CaptchaImageText"].ToString(), 300, 75, Color.DarkGray, Color.White);
MemoryStream stream = new MemoryStream();
CI.Image.Save(stream, ImageFormat.Png);
stream.Seek(0, SeekOrigin.Begin);
return(new FileStreamResult(stream, "image/png"));
}
public FileResult GetCaptchaImage()
{
var ci = new CaptchaRandomImage();
string captcha = ci.GetRandomString(5);
Session["CaptchaImageText"] = captcha;
//this.Session["CaptchaImageText"] = CI.GetRandomString(5);
ci.GenerateImage(captcha, 300, 75, Color.DarkGray, Color.White);
var stream = new MemoryStream();
ci.Image.Save(stream, ImageFormat.Png);
stream.Seek(0, SeekOrigin.Begin);
return(new FileStreamResult(stream, "image/png "));
}
protected void Page_Load(object sender, EventArgs e)
{
CaptchaRandomImage ci = new CaptchaRandomImage();
// GetRandomString Funtion return random text of your provided characters
string captachaText = ci.GetRandomString(5);
// GenearteImage funtion return image of the provided text of provided size
//ci.GenerateImage(captachaText, 200, 50);
// there is a overload function available for set color of the image
Session["CaptchaText"] = captachaText;
ci.GenerateImage(captachaText, 200, 50, Color.Red, Color.White);
this.Response.Clear();
this.Response.ContentType = "image/jpeg";
ci.Image.Save(this.Response.OutputStream, ImageFormat.Jpeg);
ci.Dispose();
}
protected void Page_Load(object sender, EventArgs e)
{
CaptchaRandomImage CI = new CaptchaRandomImage();
//GetRandomString function returns random text of your provided characters size.
string captchaText = CI.GetRandomString(5);
//GenerateImage function returns image of the provided text of provided size.
//CI.GenerateImage(captchaText, 200, 50);
//There is an overloaded function available to set colour of the image.
Session["CaptchaText"] = captchaText;
CI.GenerateImage(captchaText, 280, 50, Color.DarkGray, Color.White);
this.Response.Clear();
this.Response.ContentType = "image/jpeg";
CI.Image.Save(this.Response.OutputStream, ImageFormat.Jpeg);
CI.Dispose();
}
public void Captcha_Generating_Method()
{
CaptchaRandomImage CI = new CaptchaRandomImage();
// GetRandomString Function return random text of your provided characters size
string captchaText = CI.GetRandomString(4);
//GenearteImage function return image of the provided text of provided size
//CI.GenerateImage(captchaText, 200, 50);
//there is a overload function available for set color of the image
Session["CaptchaText"] = captchaText;
CI.GenerateImage(captchaText, 200, 50, Color.Blue, Color.AliceBlue);
this.Response.Clear();
this.Response.ContentType = "image/jpeg";
CI.Image.Save(this.Response.OutputStream, ImageFormat.Jpeg);
CI.Dispose();
}
protected void Page_Load(object sender, EventArgs e)
{
CaptchaRandomImage CI = new CaptchaRandomImage();
//GetRandomString function returns random text of your provided characters size.
string captchaText = CI.GetRandomString(5);
//GenerateImage function returns image of the provided text of provided size.
//CI.GenerateImage(captchaText, 200, 50);
//There is an overloaded function available to set colour of the image.
Session["CaptchaText"] = captchaText;
CI.GenerateImage(captchaText, 280, 50, Color.DarkGray, Color.White);
this.Response.Clear();
this.Response.ContentType = "image/jpeg";
CI.Image.Save(this.Response.OutputStream, ImageFormat.Jpeg);
CI.Dispose();
}
public FileResult GetImage()
{
CaptchaRandomImage cr = new CaptchaRandomImage();
HttpContext.Session.SetString("CaptchaImageText", RndStr(5));
cr.GenerateImage(
HttpContext.Session.GetString("CaptchaImageText"),
140,
30,
Color.Orange,
Color.White
);
MemoryStream ms = new MemoryStream();
cr.Image.Save(ms, ImageFormat.Png);
ms.Seek(0, SeekOrigin.Begin);
return(new FileStreamResult(ms, "image/png"));
}
public FileResult GetCaptchaImage()
{
this.Session.Remove("CaptchaImageText");
CaptchaRandomImage CI = new CaptchaRandomImage();
Random random = new Random();
//string combination = "123456789ABCDEFGHJKMNPQRSTUVWXYZabcdefghjkmnpqrstuvwxyz";
string combination = "0123456789";
StringBuilder captcha = new StringBuilder();
for (int i = 0; i < 4; i++)
#pragma warning disable SCS0005 // Weak random generator
{
captcha.Append(combination[random.Next(combination.Length)]);
}
#pragma warning restore SCS0005 // Weak random generator
this.Session["CaptchaImageText"] = captcha.ToString();
CI.GenerateImage(this.Session["CaptchaImageText"].ToString(), 300, 75);
MemoryStream stream = new MemoryStream();
CI.Image.Save(stream, ImageFormat.Png);
stream.Seek(0, SeekOrigin.Begin);
return(new FileStreamResult(stream, "image/png"));
}