IsAvailable Method

Summary

Determines whether a TWAIN source is installed.

Syntax

C++/CLI

Python

public static bool IsAvailable( 
   IntPtr owner 
)

public: 
static bool IsAvailable(  
   IntPtr owner 
)

def IsAvailable(self,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

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

Reference

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Help Version 22.0.2023.3.31