IScanCallback Interface

IScanCallback interface in the ABBYY FineReader Engine API — This is a callback interface that is used for managing scanning operations.

This interface is implemented in FRE for Windows.

This is a callback interface that is used for managing scanning operations. This interface is implemented on the client-side.

An object receiving notifications through this interface’s methods may do the following inside the methods’ implementation:

• Report errors which occurred during scanning to the user.

• Cancel processing.

• Process any system messages to help prevent the application from appearing unresponsive during long operations. This can be helpful in applications with a user interface.

Methods

Name	Description
OnError	Delivers to the client information about the errors that occurred during scanning.
OnImageScanned	Delivers information about the course of the scanning operation and allows it to be stopped if necessary.
OnScanComplete	Gives notification that the scanning operation has been completed.

Input parameter

This object is passed as an input parameter to the following methods:

• Scan and BeginScan methods of the ScanSource object.

Samples

This object is used in the following code samples: Scanning.

See also

ScanManager