#include "ltdoc2.h"
L_LTDOC2_API L_INT EXT_FUNCTION L_Doc2AddZone(hDoc, nPageIndex, nZoneIndex, pZoneData)
Adds a new zone to the zone list for the specified page.
Handle to the OCR document.
Index of the page on which to add the zone. This is a zero-based index.
Position in the list of zones at which to add new zone. Use -1 to append the page to the end of the list. This is a zero-based index.
Pointer to a ZONEDATA2 structure, which contains the zone data to be added.
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
After the zone is added, the zone list is recalculated automatically.
When adding a zone, the application should directly initialize the following members of the ZONEDATA2 structure, since these members will not take default values:
uStructSize
rcArea
FillMethod
CharFilter
Type
RecogModule
The OCR engine manages the ID member of the ZONEDATA2 structure.
The Type member of the ZONEDATA2 structure should be one of the following values:
For successful zone addition:
To find all zones in a specific page, use the L_Doc2FindZones / L_Doc2FindZonesExt function.
Required DLLs and Libraries
L_INT EXT_CALLBACK VerificationCB(L_INT nZoneIndex,
L_TCHAR* pszWord,
DOC2_VERIFYCODE* pVerify,
L_VOID* pUserData)
{
UNREFERENCED_PARAMETER(nZoneIndex);
UNREFERENCED_PARAMETER(pszWord);
UNREFERENCED_PARAMETER(pVerify);
UNREFERENCED_PARAMETER(pUserData);
//...
//... Set your code here
//...
return SUCCESS;
}
L_INT Doc2AddZoneExample(L_HDOC2 hDoc, L_INT nPageIndex)
{
L_INT nRet;
ZONEDATA2 ZoneData;
L_INT nZoneCount = 0;
L_TCHAR szBuffer[100];
memset(szBuffer, 0, sizeof(szBuffer));
memset(&ZoneData, 0, sizeof(ZONEDATA2));
ZoneData.uStructSize = sizeof(ZONEDATA2);
ZoneData.rcArea.left = 100;
ZoneData.rcArea.top = 100;
ZoneData.rcArea.right = 200;
ZoneData.rcArea.bottom = 200;
ZoneData.FillMethod = DOC2_FILL_DEFAULT;
ZoneData.RecogModule = DOC2_RECOGMODULE_AUTO;
ZoneData.CharFilter = DOC2_ZONE_CHAR_FILTER_DEFAULT;
ZoneData.Type = DOC2_ZONE_FLOWTEXT;
ZoneData.uFlags = 0;
ZoneData.pfnCallback = VerificationCB;
ZoneData.pUserData = NULL;
nRet = L_Doc2AddZone(hDoc, nPageIndex, 0, &ZoneData);
if (nRet == SUCCESS)
MessageBox(NULL, TEXT("The specified zone is added."), TEXT("Notice!"), MB_OK);
else
return nRet;
nRet = L_Doc2GetZoneCount (hDoc, nPageIndex, &nZoneCount);
if (nRet != SUCCESS)
{
MessageBox(NULL, TEXT("An error occurred during L_Doc2GetZoneCount"), TEXT("Error!"), MB_OK);
return nRet;
}
else
{
wsprintf(szBuffer, TEXT("Total zones in the specified page = %d\n"), nZoneCount);
MessageBox(NULL, szBuffer, TEXT("Zone Count!"), MB_OK);
}
return SUCCESS;
}