References ▼
#include "ltdoc2.h"
L_LTDOC2_API L_INT EXT_FUNCTION L_Doc2SelectZone(hDoc, hDC, nPageIndex, nZoneIndex, bSelect)
L_HDOC2 hDoc; |
handle to the OCR document |
HDC hDC; |
handle to the target device context |
L_INT nPageIndex; |
page index |
L_INT nZoneIndex; |
zone index |
L_BOOL bSelect; |
flag to select or deselect |
Selects or deselects the specified zone and draws it in the specified hDC.
| Parameter | Description | |
| hDoc | Handle to the OCR document. | |
| hDC | Handle to a device context, such as a screen, to use as the display surface. The mapping mode of the device context must be MM_TEXT. | |
| nPageIndex | Index of the page, which contains the zone. This index is zero-based. | |
| nZoneIndex | Index of the zone that will be selected or deselected. This index is zero-based. | |
| bSelect | Flag that determines the function behavior. Possible values are: | |
| Value | Meaning | |
| TRUE | Select the specified zone by nZoneIndex parameter. | |
| FALSE | Deselect the specified zone by nZoneIndex parameter. | |
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Selects or deselects the specified zone in the specified page and draws the results into the device context (L_HDC).
To draw a page, call the L_Doc2DrawPage function.
To select a zone by specifying a hit point, call the L_Doc2SelectZoneByPoint function.
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. |
For an example, refer to L_Doc2DrawPage.