IsAvailable Method

Summary
Determines whether a TWAIN source is installed.
Syntax
C#
C++
public static bool IsAvailable( 
   IntPtr owner 
) 
vb[VB Syntax] 
Public Shared Function IsAvailable( _ 
   ByVal _owner_ As IntPtr _ 
) As Boolean 
public: 
static bool IsAvailable(  
   IntPtr owner 
)  

Parameters

owner
Window handle of the application window.

Return Value

true if at least one TWAIN source is installed, false if no TWAIN source is installed.

Remarks

As an example, this method can be used to enable or disable the TWAIN menu items.

Example
C#
using Leadtools; 
using Leadtools.Twain; 
 
 
public void IsAvailableExample(IntPtr parent) 
{ 
   bool twainAvailable = TwainSession.IsAvailable(parent); 
   if (twainAvailable) 
      MessageBox.Show("Twain is installed"); 
   else 
      MessageBox.Show("Twain is not installed"); 
} 
Requirements

Target Platforms

Help Version 22.0.2022.4.5
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Leadtools.Twain Assembly

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© 1991-2022 LEAD Technologies, Inc. All Rights Reserved.