#include "ltdoc2.h"
L_LTDOC2_API L_INT EXT_FUNCTION L_Doc2UpdateZone(hDoc, nPageIndex, nZoneIndex, pZoneData)
Updates the zone data of a single zone in the zone list.
Handle to the OCR document.
Index of the page that contains the zone to be updated. This is a zero-based index.
Index of the zone to be updated. This is a zero-based index.
Pointer to the ZONEDATA2 structure that contains information used to update the zone.
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
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:
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 that detected by calling the L_Doc2FindZones / L_Doc2FindZonesExt 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
For an example, refer to L_Doc2GetZone.