PowerBuilder 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. PowerBuilder

integer li_rc
long li_Success
oleobject loo_Fmt
oleobject loo_Json
oleobject loo_JsonOut

li_Success = 0

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

loo_Fmt = create oleobject
li_rc = loo_Fmt.ConnectToNewObject("Chilkat.Formats")
if li_rc < 0 then
    destroy loo_Fmt
    MessageBox("Error","Connecting to COM object failed")
    return
end if
loo_Json = create oleobject
li_rc = loo_Json.ConnectToNewObject("Chilkat.JsonObject")

loo_JsonOut = create oleobject
li_rc = loo_JsonOut.ConnectToNewObject("Chilkat.JsonObject")

//  Digits only.
loo_Json.UpdateString("payload.text","00123456789012345678")
li_Success = loo_Fmt.QrCode("generate",loo_Json,loo_JsonOut)
if li_Success = 0 then
    Write-Debug loo_Fmt.LastErrorText
    destroy loo_Fmt
    destroy loo_Json
    destroy loo_JsonOut
    return
end if

Write-Debug "digits: mode " + loo_JsonOut.StringOf("symbols[0].selectedEncoding.mode") + ", version " + string(loo_JsonOut.IntOf("symbols[0].selectedEncoding.version"))

//  Upper-case letters, digits, space and - are all in the alphanumeric set.
loo_Json.UpdateString("payload.text","ORDER-12345 LOT A7 SHELF 12-C")
li_Success = loo_Fmt.QrCode("generate",loo_Json,loo_JsonOut)
if li_Success = 0 then
    Write-Debug loo_Fmt.LastErrorText
    destroy loo_Fmt
    destroy loo_Json
    destroy loo_JsonOut
    return
end if

Write-Debug "upper case: mode " + loo_JsonOut.StringOf("symbols[0].selectedEncoding.mode") + ", version " + string(loo_JsonOut.IntOf("symbols[0].selectedEncoding.version"))

//  Lower-case letters are not, so the same text in lower case needs byte mode.
loo_Json.UpdateString("payload.text","order-12345 lot a7 shelf 12-c")
li_Success = loo_Fmt.QrCode("generate",loo_Json,loo_JsonOut)
if li_Success = 0 then
    Write-Debug loo_Fmt.LastErrorText
    destroy loo_Fmt
    destroy loo_Json
    destroy loo_JsonOut
    return
end if

Write-Debug "lower case: mode " + loo_JsonOut.StringOf("symbols[0].selectedEncoding.mode") + ", version " + string(loo_JsonOut.IntOf("symbols[0].selectedEncoding.version"))

//  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.
loo_Json.UpdateString("payload.text","00123456789012345678")
loo_Json.UpdateString("encoding.qr.mode","byte")
li_Success = loo_Fmt.QrCode("generate",loo_Json,loo_JsonOut)
if li_Success = 0 then
    Write-Debug loo_Fmt.LastErrorText
    destroy loo_Fmt
    destroy loo_Json
    destroy loo_JsonOut
    return
end if

Write-Debug "digits as bytes: mode " + loo_JsonOut.StringOf("symbols[0].selectedEncoding.mode") + ", version " + string(loo_JsonOut.IntOf("symbols[0].selectedEncoding.version"))

//  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


destroy loo_Fmt
destroy loo_Json
destroy loo_JsonOut