Evaluation Licensing

The default installation for TwainPRO includes Evaluation licensing. This allows you to test all component features and functions and develop applications, but not distribute them. Installing TwainPRO in evaluation mode provides access to all features and functionality of TwainPRO. E-mail support is available with the evaluation license.

During evaluation of Accusoft products, Evaluation Toolkit licenses can be used to try out products. However, the product behavior is limited by trial dialog pop-ups or timeouts. When you determine the product is a good fit, you can purchase a Toolkit license to eliminate trial dialog pop-ups and timeouts.

Applications built with an evaluation license can only be run on a computer that has TwainPRO Licensing installed on it. See Runtime Licensing for information on licensing requirements to deploy applications built using TwainPRO.

An evaluation dialog similar to the following is displayed when you have a valid evaluation license.

However, if you attempt to execute a function that is not licensed in the edition license you are using (e.g., if you have a paid license for ImagXpress Standard and attempt to execute a function available only in ImagXpress Professional), an evaluation dialog similar to the following is displayed.

If no license is found in the registry, a dialog similar to the following will be displayed.

Changing Evaluation Mode Behavior

You have the flexibility to change the behavior of TwainPRO in evaluation mode. Evaluation mode behavior can be defined by setting the EvaluationMode property to one of these values:

TP_EvaluationModeAutomatic (default value) – Automatic evaluation mode. When possible, this component will automatically detect that it is running without a user interface and switch to another evaluation mode. Otherwise, it will display the evaluation mode dialog box.
TP_EvaluationModeTimeout – Timeout evaluation mode. This is the appropriate evaluation mode for applications that have no user interface.