// Convert QR Code back to URL
private void btnConvert_Click(object sender, EventArgs e)
{
QRCodeDecoder decoder = new QRCodeDecoder();
MessageBox.Show(decoder.decode(new QRCodeBitmapImage(pbQR.Image as Bitmap)));
}
public static string GetCodeFromPicture(Bitmap pic)
{
QRCodeDecoder decoder = new QRCodeDecoder();
MessagingToolkit.QRCode.Codec.Data.QRCodeBitmapImage image = new QRCodeBitmapImage(pic);
return decoder.Decode(image, Encoding.Unicode);
}
public Dictionary <string, string> LerVariosQRCode(string caminhoPDF, string diretorio)
{
Dictionary <string, string> output = new Dictionary <string, string>();
caminhos = ImageConvertor.ConvertPDFToImage(new PdfReader(caminhoPDF), diretorio, new PdfReader(caminhoPDF).NumberOfPages).ToList();
MessagingToolkit.QRCode.Codec.QRCodeDecoder dec = new MessagingToolkit.QRCode.Codec.QRCodeDecoder();
try
{
foreach (var caminho in caminhos)
{
try
{
Bitmap bitmap = new Bitmap(System.Drawing.Image.FromFile(caminho));
output.Add(caminho, dec.decode(new MessagingToolkit.QRCode.Codec.Data.QRCodeBitmapImage(bitmap)));
bitmap.Dispose();
GC.SuppressFinalize(bitmap);
}
catch (Exception)
{
continue;
}
}
return(output);
}
finally
{
GC.SuppressFinalize(dec);
GC.SuppressFinalize(output);
File.Delete(caminhoPDF);
}
}
public DecodeResult(QRCodeDecoder enclosingInstance, sbyte[] decodedBytes, int numErrors, bool correctionSucceeded)
{
InitBlock(enclosingInstance);
this.decodedBytes = decodedBytes;
this.numCorrections = numErrors;
this.correctionSucceeded = correctionSucceeded;
}
public DecodeResult(QRCodeDecoder enclosingInstance, sbyte[] decodedBytes, int numErrors, bool correctionSucceeded)
{
InitBlock(enclosingInstance);
this.decodedBytes = decodedBytes;
this.numCorrections = numErrors;
this.correctionSucceeded = correctionSucceeded;
}
public static Store ReadImage(Bitmap file)
{
using (file)
{
MessagingToolkit.QRCode.Codec.QRCodeDecoder decoder = new MessagingToolkit.QRCode.Codec.QRCodeDecoder();
string res = decoder.decode(new QRCodeBitmapImage(file));
return(JsonConvert.DeserializeObject <Store>(res));
}
}
private void decode_Qr()
{
QRCodeBitmapImage qbm = new QRCodeBitmapImage(de_bmp);
QRCodeDecoder decodeer = new QRCodeDecoder();
textBox1.Text= decodeer.Decode(qbm);
}
private void InitBlock(QRCodeDecoder enclosingInstance)
{
this.enclosingInstance = enclosingInstance;
}
public DecodeResult(QRCodeDecoder enclosingInstance, sbyte[] decodedBytes, int numCorrectionFailures)
{
InitBlock(enclosingInstance);
this.decodedBytes = decodedBytes;
this.numCorrectionFailures = numCorrectionFailures;
}
/// <summary>
/// Click on the camera. Opens a QRCode for prefiled code.
/// </summary>
/// <param name="sender">Button.</param>
/// <param name="e">Nothing.</param>
void Btn_imageClick(object sender, EventArgs e)
{
if (ofd_picture.ShowDialog() == DialogResult.OK)
{
try
{
QRCodeDecoder decoder = new QRCodeDecoder();
QRCodeImage img = new QRCodeBitmapImage((Bitmap)Bitmap.FromFile(ofd_picture.FileName));
string data = decoder.Decode(img);
Uri u = new Uri(data);
if (u.Scheme != "otpauth" || u.Host != "totp")
{
throw new Exception();
}
if (u.AbsolutePath.Length > 1)
{
txt_name.Text = System.Uri.UnescapeDataString(u.AbsolutePath.Substring(1));
}
if (u.Query.Length > 8)
{
txt_code.Text = u.Query.Substring(8);
}
}
catch
{
MessageBox.Show("Error loading image",
"Error while loading image. Is it a QRCode with totp data ?",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
}
}
}
private void InitBlock(QRCodeDecoder enclosingInstance)
{
this.enclosingInstance = enclosingInstance;
}
public DecodeResult(QRCodeDecoder enclosingInstance, sbyte[] decodedBytes, int numCorrectionFailures)
{
this.InitBlock(enclosingInstance);
this.decodedBytes = decodedBytes;
this.numCorrectionFailures = numCorrectionFailures;
}
