Xbase++

ZATCA Decode QR Code

See more ZATCA Examples

Decodes a base64 ZATCA QR code.

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

Xbase++

LOCAL nSuccess
LOCAL cQr
LOCAL oBd
LOCAL nIndex
LOCAL nExpectedTag
LOCAL nTag
LOCAL nLen
LOCAL cTagValue

nSuccess := 0

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

cQr := "ARdBaG1lZCBNb2hhbWVkIEFMIEFobWFkeQIPMzAwMDc1NTg4NzAwMDAzAxQyMDIyLTAzLTEzVDE0OjQwOjQwWgQHMTEwOC45MAUFMTQ0LjkGLCtiQTFtdWNWSTY3SDRXQ2JOL2U5SjJxVXBIVHQzVHdNZHhsa09XVGVvdjg9B2BNRVlDSVFDWWg1ZTNpcklxV2w1WXRhQ25LaXVqTUlUbW9rWFlPUE1wSURDSW9XVzc5d0loQU1YbWMrTUZIR3RhZUJzZU91RUdUbHdENmcwOWdOUVBSUHVZODlzNjVPV1MIWDBWMBAGByqGSM49AgEGBSuBBAAKA0IABNMAr2WtNWSj2uSrplhxz0cNFk/hv1LjMDgqbthcn6ydNWEuTNTQeyZJf1SfyMOFFM4cMpp+3wL+65Rj3fi+4w0JSDBGAiEAlcAzHKujzvjHJrAV1M/79RnYRqe66kmtgMUykr/N/CACIQDgTQwbfftw0pYo6FX8c63Q4edvFgt+7JhHaBlla0qRtQ=="

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

oBd := CreateObject("Chilkat.BinData")
nSuccess := oBd:AppendEncoded(cQr, "base64")

nIndex := 0
nExpectedTag := 1

DO WHILE (nExpectedTag <= 9)

    //  Get the tag
    nTag := oBd:GetByte(nIndex)
    IF (nTag != nExpectedTag)
        ? "Expected tag " + Str(nExpectedTag)
        oBd:destroy()
        RETURN
    ENDIF

    nIndex := nIndex + 1
    nLen := oBd:GetByte(nIndex)
    IF (nLen == 0)
        ? "Expected length > 0"
        oBd:destroy()
        RETURN
    ENDIF

    nIndex := nIndex + 1
    //  Tags 8 and 9 contain binary data.
    IF (nExpectedTag >= 8)
        cTagValue := oBd:GetEncodedChunk(nIndex, nLen, "base64")
    ELSE
        cTagValue := oBd:GetTextChunk(nIndex, nLen, "utf-8")
    ENDIF

    ? "tag " + Str(nTag) + ": " + cTagValue

    nIndex := nIndex + nLen
    nExpectedTag := nExpectedTag + 1
ENDDO

oBd:destroy()