DTWAIN_GetTwainAvailability

The DTWAIN_GetTwainAvailability function tests to see which TWAIN Data Source Managers are available to the application.

LONG DTWAIN_GetTwainAvailability ( );

Return Values

A LONG denoting the TWAIN Data Source Managers that are available to the application.

Comments

The DTWAIN_GetTwainAvailability function tests to see which TWAIN Data Source Managers are available for use by DTWAIN. The return value is a boolean OR of the available values. The values can be a combination of the following values:

Constant	Definition
DTWAIN_TWAINDSM_LEGACY	Legacy verson of the TWAIN DSM (TWAIN_32.DLL)
DTWAIN_TWAINDSM_VERSION2	New, open source version of the TWAIN DSM (TWAINDSM.DLL)

C/C++ Example:

#include "dtwain.h"

void foo( )

{

LONG availDSM;

DTWAIN_SysInitialize( );

availDSM = DTWAIN_GetTwainAvailability( );

if ( availDSM & DTWAIN_TWAINDSM_VERSION2 ) // test if the DTWAIN_TWAINDSM_VERSION2 flag is on

// lets use this DSM in our apps.

DTWAIN_SetTwainDSM( DTWAIN_TWAINDSM_VERSION2 );

//...

}

TWAIN State Transitions

None

Prerequisite Function Call(s)

DTWAIN_SysInitialize