#include "ltdoc2.h"

L_LTDOC2_API L_INT L_Doc2GetZoneColorExt(hDoc, nDocId, nPageIndex, nZoneIndex, pClr)

Gets the color of the specified zone on the specified page.


L_HDOC2 hDoc

Handle to the OCR document. This handle is obtained by calling the L_Doc2StartUp function.

L_INT nDocId

Document ID created by calling L_Doc2CreateDocument.

L_INT nPageIndex

Zero-based index of the page.

L_INT nZoneIndex

Zero-based index of the zone.


Address of a variable to be updated with the color of the zone.


Value Meaning
SUCCESS The function was successful.
< 1 An error occurred. Refer to Return Codes.


This function gets the zones colors, but only for those zones that the engine detects on the specified page. Use the zone index from the zones list that the engine detects.

To get the number of zones that the engine detected, call the L_Doc2GetZoneCount / L_Doc2GetZoneCountExt function.

Call the L_Doc2FindZones / L_Doc2FindZonesExt function to have the engine detect the zones on a specific page.

Required DLLs and Libraries

Help Version 21.0.2021.4.7
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2021 LEAD Technologies, Inc. All Rights Reserved.

LEADTOOLS OCR Module - OmniPage Engine C API Help