--uiperm

Leaves the device user interface displayed after acquiring a set of pages. This allows the user to keep TwainSave running without shutting down after a set of pages have been acquired. The user is responsible for shutting down the user interface, thereby terminating the TwainSave program.

The --uiperm option is not available if the --noui option is used. If you are acquiring without a user interface, TwainSave will always terminate once a set of pages have been acquired.

Default Setting:

The user interface is immediately closed (and TwainSave is terminated) once a set of pages are acquired.