var writer = new BarcodeWriter
{
Format = BarcodeFormat.QR_CODE,
Options = new QrCodeEncodingOptions
{
Height = 400,
Width = 400,
CharacterSet = "UTF-8"
}
};
var writeableBitmapEx = writer.Write(content);
منبع
https://zxingnet.codeplex.com/discussions/399045