FindBlackSquares Method of the ImageDocument Object

FindBlackSquares method of the ImageDocument Object in the ABBYY FineReader Engine API — Finds black squares on the image (commonly used as anchors on fill-in forms) and returns their locations.

This method finds black squares on the image and returns their locations. Black squares are often used as anchors on fill-in forms.

See the illustration

Syntax

C++

HRESULT FindBlackSquares( IRegionsCollection** Result );

C#

IRegionsCollection FindBlackSquares();

Visual Basic .NET

Function FindBlackSquares() As IRegionsCollection

Parameters

Result

[out, retval] A pointer to an IRegionsCollection* pointer variable that receives the interface pointer of the RegionsCollection object containing regions that represent the locations of found black squares.

Return values

This method has no specific return values. It returns the standard return values of ABBYY FineReader Engine functions.

See also

ImageDocument