L_DocSelectZone
#include "ltdoc.h"
L_LTDOC_API L_INT L_DocSelectZone(hDoc, hDC, nPageIndex, nZoneIndex, bSelect)
L_HDOC hDoc; |
/* handle to the OCR document */ |
L_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 |
Specifies the index of the page which contains the zone.This index is zero-based. | |
nZoneIndex |
Specifies the index of the zone that will be selected or deselected. This index is zero-based. | |
bSelect |
Flag which determines the function behavior. Valid values are: | |
|
Value |
Meaning |
|
TRUE |
Select the specified zone by nZoneIndex parameter. |
|
FALSE |
Deselect the specified zone by nZoneIndex parameter. |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
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 L_DocDrawPage.
To select a zone by specifying a hit point, call L_DocSelectZoneByPoint.
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
For an example, refer to L_DocDrawPage.