public IActionResult GetCaptcha()
{
CaptchaResponseDto dto = new CaptchaResponseDto();
dto = CaptchaHelper.GenerateCaptcha();
return(Ok(dto));
}
private void Button_Click(object sender, RoutedEventArgs e)
{
if (!int.TryParse(TxtCaptchaCodeLength.Text, out int length))
{
length = 4;
}
var captchaCode = CaptchaHelper.GenerateCaptchaCode(length);
TxtCaptchaCode.Text = captchaCode;
if (!int.TryParse(TxtImageWidth.Text, out int imageWidth))
{
imageWidth = 200;
}
if (!int.TryParse(TxtImageHeight.Text, out int imageHeight))
{
imageHeight = 50;
}
var captcha = CaptchaHelper.GenerateCaptcha(captchaCode, imageWidth, imageHeight);
var bmp = new BitmapImage();
bmp.BeginInit();
bmp.StreamSource = new MemoryStream(captcha.ByteData);
bmp.EndInit();
ImgCaptcha.Source = bmp;
ImgCaptcha.Width = imageWidth;
ImgCaptcha.Height = imageHeight;
}
public IActionResult AppCaptchaData()
{
try
{
var captchaData = CaptchaHelper.GenerateCaptcha();
return(new JsonResult(captchaData));
}
catch (Exception)
{
throw;
}
}
