L_Doc2UpdateZone

Show in webframe

#include "ltdoc2.h"

L_LTDOC2_API L_INT EXT_FUNCTION L_Doc2UpdateZone(hDoc, nPageIndex, nZoneIndex, pZoneData)

L_HDOC2 hDoc;	/* handle to the OCR document */
L_INT nPageIndex;	/* page index */
L_INT nZoneIndex;	/* zone index */
pZONEDATA2 pZoneData;	/* pointer to a ZONEDATA2 structure */

Updates the zone data of a single zone in the zone list.

Parameter	Description
hDoc	Handle to the OCR document.
nPageIndex	Index of the page that contains the zone to be updated. This is a zero-based index.
nZoneIndex	Index of the zone to be updated. This is a zero-based index.
pZoneData	Pointer to the ZONEDATA2 structure that contains information used to update the zone.

Returns

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

Comments

When adding a zone, the application should directly initialize the following members of ZONEDATA2 structure, since these members do not take default values:

uStructSize
rcArea
FillMethod
CharFilter
Type
RecogModule

The Type member of the ZONEDATA2 structure should be one of the following values:

DOC2_ZONE_FLOWTEXT

DOC2_ZONE_TABLE

DOC2_ZONE_GRAPHIC

The index of the first zone in the zone list is zero (0).

To update only the zone area, call the L_Doc2Zone function.

For OCR zones (zones that detected by calling the L_Doc2FindZones function), the following members cannot be changed:

ZONEDATA2.rcArea, ZONEDATA2.Type, ZONEDATA2.pfnCallback.

But, you can update all ZONEDATA2 members for user zones.

Required DLLs and Libraries

LTDOC2

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Functions:	L_Doc2AddZone, L_Doc2GetZoneCount, L_Doc2GetZone, L_Doc2RemoveZone, L_Doc2ImportZones, L_Doc2ExportZones, L_Doc2FindZones, L_Doc2SetZoneOptions, L_Doc2GetZoneOptions, VERIFICATIONCALLBACK2
Topics:	OCR Functions: Zones
	Working with Zones