Using a Duplex Scanner

If your image device is equipped with a duplexing option (scan both sides of the page), DTWAIN allows you to use the duplexer.

Enabling / Disabling the Duplexer

You can choose to scan using the duplex option by calling DTWAIN_EnableDuplex with a value of TRUE.  To disable the duplexing option,  call DTWAIN_EnableDuplex with a FALSE parameter.  To test if the duplexer is enabled, call DTWAIN_IsDuplexEnabled.

Testing for Duplexing Availability

To check if a duplexer is available for a particular device, the DTWAIN_IsDuplexSupported function should be used.  To get the actual type of duplexer that is supported, call DTWAIN_GetDuplexType.