L_Doc2SelectZone

Show in webframe

#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.

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 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.

Functions:	L_Doc2LockPage, L_Doc2UnlockPage, L_Doc2SetActivePage, L_Doc2DrawPage, L_Doc2SelectZoneByPoint, L_Doc2RemoveSelectedZone, L_Doc2SetZonePen, L_Doc2SetSelectedZonePen, L_Doc2GetSelectedZone, L_Doc2Zone
Topics:	OCR Functions: Drawing Zones and Pages