AutoIt Requires Chilkat v11.7.0+

QR Code Numeric, Alphanumeric and Byte Modes

See more QR Code Examples

Demonstrates the QR encoding modes. Digits alone are stored in numeric mode, and text made only of digits, upper-case letters, space and $ % * + - . / : in alphanumeric mode. Both pack more characters into a symbol than byte mode, which is used for everything else. QrCode chooses the most compact mode the text allows, and the response reports it. A product code written in upper case therefore gives a smaller symbol than the same code in lower case. AutoIt

Local $bSuccess = False

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

$oFmt = ObjCreate("Chilkat.Formats")
$oJson = ObjCreate("Chilkat.JsonObject")
$oJsonOut = ObjCreate("Chilkat.JsonObject")

;  Digits only.
$oJson.UpdateString("payload.text","00123456789012345678")
$bSuccess = $oFmt.QrCode("generate",$oJson,$oJsonOut)
If ($bSuccess = False) Then
    ConsoleWrite($oFmt.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("digits: mode " & $oJsonOut.StringOf("symbols[0].selectedEncoding.mode") & ", version " & $oJsonOut.IntOf("symbols[0].selectedEncoding.version") & @CRLF)

;  Upper-case letters, digits, space and - are all in the alphanumeric set.
$oJson.UpdateString("payload.text","ORDER-12345 LOT A7 SHELF 12-C")
$bSuccess = $oFmt.QrCode("generate",$oJson,$oJsonOut)
If ($bSuccess = False) Then
    ConsoleWrite($oFmt.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("upper case: mode " & $oJsonOut.StringOf("symbols[0].selectedEncoding.mode") & ", version " & $oJsonOut.IntOf("symbols[0].selectedEncoding.version") & @CRLF)

;  Lower-case letters are not, so the same text in lower case needs byte mode.
$oJson.UpdateString("payload.text","order-12345 lot a7 shelf 12-c")
$bSuccess = $oFmt.QrCode("generate",$oJson,$oJsonOut)
If ($bSuccess = False) Then
    ConsoleWrite($oFmt.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("lower case: mode " & $oJsonOut.StringOf("symbols[0].selectedEncoding.mode") & ", version " & $oJsonOut.IntOf("symbols[0].selectedEncoding.version") & @CRLF)

;  The mode can be named.  Byte mode can hold any text.  Naming a mode the text cannot use
;  (numeric for text with letters, for example) fails with conflictingOptions.
$oJson.UpdateString("payload.text","00123456789012345678")
$oJson.UpdateString("encoding.qr.mode","byte")
$bSuccess = $oFmt.QrCode("generate",$oJson,$oJsonOut)
If ($bSuccess = False) Then
    ConsoleWrite($oFmt.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("digits as bytes: mode " & $oJsonOut.StringOf("symbols[0].selectedEncoding.mode") & ", version " & $oJsonOut.IntOf("symbols[0].selectedEncoding.version") & @CRLF)

;  The four symbols, in the order they were made:

;  

;  Sample output:

;  digits: mode numeric, version 1
;  upper case: mode alphanumeric, version 2
;  lower case: mode byte, version 3
;  digits as bytes: mode byte, version 2