References ▼
#include "ltdoc2.h"
L_LTDOC2_API L_INT EXT_FUNCTION L_Doc2Zone(hDoc, nPageIndex, nZoneIndex, lpArea)
Updates the specified zone area in the specified page.
Handle to the OCR document.
Page index. This index is zero-based.
Zone index that will be updated. This index is zero-based.
Pointer to the Windows RECT structure, which contains the new zone area.
| Value | Meaning |
|---|---|
| SUCCESS | The function was successful. |
| < 1 | An error occurred. Refer to Return Codes. |
To update general zone information, call the L_Doc2UpdateZone / L_Doc2UpdateZoneExt function.
✎ NOTE
If the zone is OCR zone, then this function will not update the zone area.
Required DLLs and Libraries
L_INT Doc2ZoneExample(L_HDOC2 hDoc,HWND hWnd){L_INT nRet;HDC hdc = GetDC(hWnd);L_INT nSelZone = 0;POINT pt;pt.x = 450;pt.y = 400;nRet = L_Doc2SelectZoneByPoint(hDoc, hdc, 0, pt, &nSelZone);if (nRet == SUCCESS){ZONEDATA2 ZoneData;ZeroMemory(&ZoneData, sizeof(ZONEDATA2));// gets the zone data for the current selected zone...nRet = L_Doc2GetSelectedZone(hDoc, 0, &ZoneData, sizeof(ZONEDATA2));if (nRet == SUCCESS){// update the area for the current selected zone...ZoneData.rcArea.left += 10;ZoneData.rcArea.top += 10;ZoneData.rcArea.right += 50;ZoneData.rcArea.bottom += 50;nRet = L_Doc2Zone(hDoc, 0, nSelZone, &ZoneData.rcArea);if (nRet == SUCCESS)MessageBox(NULL, TEXT("The selected zone area is updated."), TEXT("Notice!"), MB_OK);}elsereturn nRet;ReleaseDC(hWnd, hdc);}elsereturn nRet;return SUCCESS;}