LanapBotDetect::CodeTypeEnum Reference (BotDetect v2.0; deprecated)

LanapBotDetect::CodeTypeEnum is a member of BotDetect ASP CAPTCHA interface that contains all valid values of the LanapBotDetect component's CodeType property. It represents the type of code rendered in CAPTCHA images and spoken in the audio CAPTCHAs.

Table of Contents

• CodeTypeEnum Members
• CodeTypeEnum Default
• CodeTypeEnum Usage
• CodeTypeEnum Notes
• CodeTypeEnum Screenshots

Members

[VB]

Public Enum CodeTypeEnum
  AlphaNumeric = 0
  Alpha = 1
  Numeric = 2
End Enum

[C++]

typedef enum CodeTypeEnum
{
  AlphaNumeric = 0,
  Alpha = 1,
  Numeric = 2 
} CodeTypeEnum;

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Default value

If the CodeType property is not set, 0 (AlphaNumeric) is used by default.

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Usage

[ASP]

' Assume we are using the LanapBotDetectHandler.asp helper

' Example 1: simple assignment
<img src=
  "LanapBotDetectHandler.asp?Command=CreateImage&CodeType=1" 
  alt="CAPTCHA image" />
	
' Example 2: randomization
<%
Dim codeType 
Randomize
codeType = CInt( 2 * Rnd() ) 
%>

<img src=
  "LanapBotDetectHandler.asp?Command=
  CreateImage&CodeType=<%=codeType%>" alt="CAPTCHA image" />

Direct access examples:

[VB]
Set objCaptcha = CreateObject("Lanap.BotDetect")
objCaptcha.CodeType = 1

[PHP]
$objCaptcha = new COM('Lanap.BotDetect');
$objCaptcha->CodeType = 1;

[Ruby]
objCaptcha = WIN32OLE.new('Lanap.BotDetect')
objCaptcha.CodeType = 1

[Java]
ActiveXComponent objCaptcha = 
  new ActiveXComponent("Lanap.BotDetect");
	
objCaptcha.setProperty("CodeType", 1);

[Python]
objCaptcha = win32com.client.Dispatch("Lanap.BotDetect")
objCaptcha.CodeType = 1

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Notes

To improve user-friendliness, the CodeTypeEnum::AlphaNumeric code generation algorithm doesn't use the full range of available characters, but excludes some easily confused character pairs - for example, '1', 'I', '7', 'L', '0', 'O', '5' and 'S' are not used.

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Screenshots

(Using the "Strippy" Text Style)

Alpha

Numeric

AlphaNumeric

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