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IsAvailable Method

Summary

Determines whether a TWAIN source is installed.

Syntax

C#
VB
C++
public virtual bool IsAvailable( 
   string id, 
   object userData 
) 
  
Public Overridable Function IsAvailable( _ 
   ByVal id As String, _ 
   ByVal userData As Object _ 
) As Boolean 
public: 
virtual bool IsAvailable(  
   String^ id, 
   Object^ userData 
)  

Parameters

id
The scanning session Id.

userData
The user data.

Return Value

true if at least one TWAIN source is installed; otherwise, false.

Requirements

Target Platforms

Help Version 19.0.2017.10.18
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