Classic ASP 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. Classic ASP

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

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

set fmt = Server.CreateObject("Chilkat.Formats")
set json = Server.CreateObject("Chilkat.JsonObject")
set jsonOut = Server.CreateObject("Chilkat.JsonObject")

'  Digits only.
success = json.UpdateString("payload.text","00123456789012345678")
success = fmt.QrCode("generate",json,jsonOut)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( fmt.LastErrorText) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "digits: mode " & jsonOut.StringOf("symbols[0].selectedEncoding.mode") & ", version " & jsonOut.IntOf("symbols[0].selectedEncoding.version")) & "</pre>"

'  Upper-case letters, digits, space and - are all in the alphanumeric set.
success = json.UpdateString("payload.text","ORDER-12345 LOT A7 SHELF 12-C")
success = fmt.QrCode("generate",json,jsonOut)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( fmt.LastErrorText) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "upper case: mode " & jsonOut.StringOf("symbols[0].selectedEncoding.mode") & ", version " & jsonOut.IntOf("symbols[0].selectedEncoding.version")) & "</pre>"

'  Lower-case letters are not, so the same text in lower case needs byte mode.
success = json.UpdateString("payload.text","order-12345 lot a7 shelf 12-c")
success = fmt.QrCode("generate",json,jsonOut)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( fmt.LastErrorText) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "lower case: mode " & jsonOut.StringOf("symbols[0].selectedEncoding.mode") & ", version " & jsonOut.IntOf("symbols[0].selectedEncoding.version")) & "</pre>"

'  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.
success = json.UpdateString("payload.text","00123456789012345678")
success = json.UpdateString("encoding.qr.mode","byte")
success = fmt.QrCode("generate",json,jsonOut)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( fmt.LastErrorText) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "digits as bytes: mode " & jsonOut.StringOf("symbols[0].selectedEncoding.mode") & ", version " & jsonOut.IntOf("symbols[0].selectedEncoding.version")) & "</pre>"

'  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

%>
</body>
</html>