using IronQr;
using IronSoftware.Drawing;

// 1. Medium Error Correction - balanced for general use
QrOptions mediumOptions = new QrOptions(QrErrorCorrectionLevel.Medium);

QrCode qrMedium = QrWriter.Write("1234", mediumOptions);
AnyBitmap qrMediumImage = qrMedium.Save();
qrMediumImage.SaveAs("qr-medium.png");

// 2. Highest Error Correction - maximum damage resilience
QrOptions highestOptions = new QrOptions(QrErrorCorrectionLevel.Highest);

QrCode qrHighest = QrWriter.Write("1234", highestOptions);
AnyBitmap qrHighestImage = qrHighest.Save();
qrHighestImage.SaveAs("qr-highest.png");