(C#) ZATCA Decode QR Code

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Decodes a base64 ZATCA QR code.

Note: This example requires Chilkat v9.5.0.92 or greater.

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// Note: This example requires Chilkat v9.5.0.92 or greater.

string qr = "ARdBaG1lZCBNb2hhbWVkIEFMIEFobWFkeQIPMzAwMDc1NTg4NzAwMDAzAxQyMDIyLTAzLTEzVDE0OjQwOjQwWgQHMTEwOC45MAUFMTQ0LjkGLCtiQTFtdWNWSTY3SDRXQ2JOL2U5SjJxVXBIVHQzVHdNZHhsa09XVGVvdjg9B2BNRVlDSVFDWWg1ZTNpcklxV2w1WXRhQ25LaXVqTUlUbW9rWFlPUE1wSURDSW9XVzc5d0loQU1YbWMrTUZIR3RhZUJzZU91RUdUbHdENmcwOWdOUVBSUHVZODlzNjVPV1MIWDBWMBAGByqGSM49AgEGBSuBBAAKA0IABNMAr2WtNWSj2uSrplhxz0cNFk/hv1LjMDgqbthcn6ydNWEuTNTQeyZJf1SfyMOFFM4cMpp+3wL+65Rj3fi+4w0JSDBGAiEAlcAzHKujzvjHJrAV1M/79RnYRqe66kmtgMUykr/N/CACIQDgTQwbfftw0pYo6FX8c63Q4edvFgt+7JhHaBlla0qRtQ==";

qr = "AQxGaXJveiBBc2hyYWYCCjEyMzQ1Njc4OTEDEzIwMjEtMTEtMTcgMDg6MzA6MDAEBjEwMC4wMAUFMTUuMDAGLDlmc3JYVW8rU3BYQVlJTkw5aGFLU2dEOXgxaVJsZk53SVBDZnBlWXczYTA9B1hYMEM4VjFIL3hUMGdOaytWWXh2U2Z6UFJlUjZPM2t5VXA0TERITzJLMzlNSGJETXVvTGltQSt3RnovV2pVdEdMSHpaK0J5enNmWUdEQzliNUFGSU1FQT09CFgwVjAQBgcqhkjOPQIBBgUrgQQACgNCAARw3B+mu14x0h3pJFKqEWWT7DmD7jWYkZV7qHyikPlN4P/4/b7YD+A9wnFI92HTKm+/BGKXVf/pfLtsmdIIaPHnCUgwRgIhAMTjOkWwcNu5Aw5k1Yr3YgbPhdxKoJV1a3+5ShPtx1/IAiEAyrwsA/NuqV6XjybyrZpMp6eJAqslACLfCldti/PVOQs=";

Chilkat.BinData bd = new Chilkat.BinData();
bool success = bd.AppendEncoded(qr,"base64");

int index = 0;
int expectedTag = 1;
int tag;
int len;
string tagValue;

while ((expectedTag <= 9)) {

    // Get the tag
    tag = bd.GetByte(index);
    if (tag != expectedTag) {
        Debug.WriteLine("Expected tag " + Convert.ToString(expectedTag));
        return;
    }

    index = index + 1;
    len = bd.GetByte(index);
    if (len == 0) {
        Debug.WriteLine("Expected length > 0");
        return;
    }

    index = index + 1;
    // Tags 8 and 9 contain binary data.
    if (expectedTag >= 8) {
        tagValue = bd.GetEncodedChunk(index,len,"base64");
    }
    else {
        tagValue = bd.GetTextChunk(index,len,"utf-8");
    }

    Debug.WriteLine("tag " + Convert.ToString(tag) + ": " + tagValue);

    index = index + len;
    expectedTag = expectedTag + 1;
}