L_DocOffsetZones
#include "ltdoc.h"
L_INT EXT_FUNCTION L_DocOffsetZones(hDoc, pt)
L_HDOC hDoc; |
/* handle to the OCR document */ |
POINT pt; |
/* pointer to a POINT structure */ |
Scrolls the zones of the currently displayed page, by the specified values.
Parameter |
Description |
hDoc |
Handle to the OCR document. |
pt |
POINT structure that contains values that represent the amount of vertical and horizontal scrolling. |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
When a page is scrolled, the zones on that page must also be scrolled and redrawn in their new locations, relative to the page. The amount the page was scrolled indicates the amount by which the zones must be scrolled. This amount is specified in the X and Y parameters.
Required DLLs and Libraries
LTDOC For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
See Also
Example
void TestSelectZoneByPoint(L_HDOC hDoc, HWND hWnd)
{
HDC hdc = GetDC(hWnd);
L_INT nSelZone;
POINT pt;
POINT ptScroll;
ptScroll.x = 0;
ptScroll.y = 0;
pt.x = 100;
pt.y = 100;
L_DocOffsetZones(hDoc, ptScroll);
L_INT nRet = L_DocSelectZoneByPoint(hDoc, hdc, 0, pt, &nSelZone);
if (nRet == SUCCESS)
{
L_TCHAR szBuffer[200];
memset(szBuffer, 0, sizeof(szBuffer));
wsprintf(szBuffer, TEXT("The selected zone index = %d\n"), nSelZone);
MessageBox(NULL, szBuffer, TEXT("Notice!"), MB_OK);
}
ReleaseDC(hWnd, hdc);
}