DataFlex Requires Chilkat v11.7.0+

QR Codes for Email, Phone, SMS and Location

See more QR Code Examples

Demonstrates QR codes that start an action on a phone. A QR code only holds text, and what happens on scanning depends on the form of that text: mailto: starts an email, tel: dials a number, SMSTO: starts a text message, and geo: opens a map at a latitude and longitude. A web address opens in the browser. DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoFmt
    Variant vJson
    Handle hoJson
    Variant vJsonOut
    Handle hoJsonOut
    String sTemp1
    Integer iTemp1

    Move False To iSuccess

    //  This example requires the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    Get Create (RefClass(cComChilkatFormats)) To hoFmt
    If (Not(IsComObjectCreated(hoFmt))) Begin
        Send CreateComObject of hoFmt
    End
    Get Create (RefClass(cComChilkatJsonObject)) To hoJson
    If (Not(IsComObjectCreated(hoJson))) Begin
        Send CreateComObject of hoJson
    End
    Get Create (RefClass(cComChilkatJsonObject)) To hoJsonOut
    If (Not(IsComObjectCreated(hoJsonOut))) Begin
        Send CreateComObject of hoJsonOut
    End
    Get ComUpdateInt Of hoJson "render.moduleSize" 6 To iSuccess
    Get ComUpdateBool Of hoJson "output.overwrite" True To iSuccess
    Get ComUpdateString Of hoJson "output.return" "none" To iSuccess

    //  An email, with the address and optionally a subject.  Spaces in the subject are written %20.
    Get ComUpdateString Of hoJson "payload.text" "mailto:support@example.com?subject=Order%2012345" To iSuccess
    Get ComUpdateString Of hoJson "output.path" "qa_output/qr_email.png" To iSuccess
    Get pvComObject of hoJson to vJson
    Get pvComObject of hoJsonOut to vJsonOut
    Get ComQrCode Of hoFmt "generate" vJson vJsonOut To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoFmt To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComIntOf Of hoJsonOut "symbols[0].selectedEncoding.version" To iTemp1
    Get ComStringOf Of hoJsonOut "outputs[0].path" To sTemp1
    Showln "email: version " iTemp1 ", " sTemp1

    //  

    //  A phone number to dial, in international form.
    Get ComUpdateString Of hoJson "payload.text" "tel:+15555550100" To iSuccess
    Get ComUpdateString Of hoJson "output.path" "qa_output/qr_phone.png" To iSuccess
    Get pvComObject of hoJson to vJson
    Get pvComObject of hoJsonOut to vJsonOut
    Get ComQrCode Of hoFmt "generate" vJson vJsonOut To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoFmt To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComIntOf Of hoJsonOut "symbols[0].selectedEncoding.version" To iTemp1
    Get ComStringOf Of hoJsonOut "outputs[0].path" To sTemp1
    Showln "phone: version " iTemp1 ", " sTemp1

    //  

    //  A text message: the number, then the message.
    Get ComUpdateString Of hoJson "payload.text" "SMSTO:+15555550100:Please call me back" To iSuccess
    Get ComUpdateString Of hoJson "output.path" "qa_output/qr_sms.png" To iSuccess
    Get pvComObject of hoJson to vJson
    Get pvComObject of hoJsonOut to vJsonOut
    Get ComQrCode Of hoFmt "generate" vJson vJsonOut To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoFmt To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComIntOf Of hoJsonOut "symbols[0].selectedEncoding.version" To iTemp1
    Get ComStringOf Of hoJsonOut "outputs[0].path" To sTemp1
    Showln "sms: version " iTemp1 ", " sTemp1

    //  

    //  A location: latitude, then longitude, in degrees.
    Get ComUpdateString Of hoJson "payload.text" "geo:41.8781,-87.6298" To iSuccess
    Get ComUpdateString Of hoJson "output.path" "qa_output/qr_location.png" To iSuccess
    Get pvComObject of hoJson to vJson
    Get pvComObject of hoJsonOut to vJsonOut
    Get ComQrCode Of hoFmt "generate" vJson vJsonOut To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoFmt To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComIntOf Of hoJsonOut "symbols[0].selectedEncoding.version" To iTemp1
    Get ComStringOf Of hoJsonOut "outputs[0].path" To sTemp1
    Showln "location: version " iTemp1 ", " sTemp1

    //  

    //  Sample output:

    //  email: version 4, qa_output/qr_email.png
    //  phone: version 2, qa_output/qr_phone.png
    //  sms: version 3, qa_output/qr_sms.png
    //  location: version 2, qa_output/qr_location.png


End_Procedure