L_Doc2UpdateZoneExt

#include "ltdoc2.h"

L_LTDOC2_API L_INT L_Doc2UpdateZoneExt(hDoc, nDocId, nPageIndex, nZoneIndex, pZoneData)

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

Parameters

L_HDOC2 hDoc

Handle to the OCR document.

L_INT nDocId

Document ID created by calling L_Doc2CreateDocument.

L_INT nPageIndex

Zero-based index of the page that contains the zone to be updated.

L_INT nZoneIndex

Zero-based index of the zone to be updated.

pZONEDATA2 pZoneData

Pointer to the ZONEDATA2 structure that contains information used to update the zone.

Returns

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 / L_Doc2ZoneExt function.

For OCR zones (zones detected by calling the L_Doc2FindZones / L_Doc2FindZonesExt function), the following members cannot be changed:

ZONEDATA2.rcArea  
ZONEDATA2.Type 
ZONEDATA2.pfnCallback 

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.