OnVisibleDocumentAreaChange Method of the IImageViewerEvents Interface
This method is implemented on the client-side. It is called by ABBYY FineReader Engine after the visible document area has been changed in Image Viewer.
The method delivers to the client the coordinates of the new visible area.
HRESULT OnVisibleDocumentAreaChange( IFRRectangle* Value );
void OnVisibleDocumentAreaChange( IFRRectangle Value );
Visual Basic .NET
Sub OnVisibleDocumentAreaChange(Value As IFRRectangle)
- [in] Refers to the FRRectangle object which contains the coordinates of the visible document area in pixels. The coordinates are relative to the document image.
This method has no specific return values. It returns the standard return values of ABBYY FineReader Engine functions.
The client implementation of this method must assure that all exceptions thrown inside the method are caught and handled and no exceptions are propagated outside the method. Propagation of an exception outside the method may lead to unpredictable results (such as program termination).