/// <summary>
/// Could return bigger bitmap
/// </summary>
/// <param name="sAddress"></param>
/// <param name="iSize"></param>
/// <returns></returns>
private static Bitmap CreateQRCode(string sAddress, int iSize)
{
// Adding new QRCode encoding system
int iMinimumSize = 33;
iSize = Math.Max(iSize, iMinimumSize);
QREncoder enc = new QREncoder();
enc.ErrorCorrection = ErrorCorrection.H;
// this leads to a 33 x 33 qrcode
enc.ModuleSize = 1;
enc.QuietZone = 4;
int iModuleSize = Math.Max(1, (int)Math.Ceiling((double)iSize / (double)iMinimumSize));
enc.QuietZone = 4 * iModuleSize;
enc.ModuleSize = iModuleSize;
enc.Encode(sAddress);
return(enc.CreateQRCodeBitmap());
}
private void OnEncode(object sender, EventArgs e)
{
// get error correction code
ErrorCorrection ErrorCorrection = (ErrorCorrection)ErrorCorrectionComboBox.SelectedIndex;
// get module size
string ModuleStr = ModuleSizeTextBox.Text.Trim();
if (!int.TryParse(ModuleStr, out int ModuleSize) || ModuleSize < 1 || ModuleSize > 100)
{
MessageBox.Show("Module size error.");
return;
}
// get quiet zone
string QuietStr = QuietZoneTextBox.Text.Trim();
if (!int.TryParse(QuietStr, out int QuietZone) || QuietZone < 1 || QuietZone > 100)
{
MessageBox.Show("Quiet zone error.");
return;
}
// get data for QR Code
string Data = DataTextBox.Text.Trim();
if (Data.Length == 0)
{
MessageBox.Show("Data must not be empty.");
return;
}
// disable buttons
EnableButtons(false);
try
{
QRCodeEncoder.ErrorCorrection = ErrorCorrection;
QRCodeEncoder.ModuleSize = ModuleSize;
QRCodeEncoder.QuietZone = QuietZone;
// multi segment
if (SeparatorCheckBox.Checked && Data.IndexOf('|') >= 0)
{
string[] Segments = Data.Split(new char[] { '|' }, StringSplitOptions.RemoveEmptyEntries);
// encode data
QRCodeEncoder.Encode(Segments);
}
// single segment
else
{
// encode data
QRCodeEncoder.Encode(Data);
}
// create bitmap
QRCodeImage = QRCodeEncoder.CreateQRCodeBitmap();
}
catch (Exception Ex)
{
MessageBox.Show("Encoding exception.\r\n" + Ex.Message);
}
// enable buttons
EnableButtons(true);
// repaint panel
Invalidate();
return;
}