L_DocSelectZone

#include "ltdoc.h"

L_INT EXT_FUNCTION L_DocSelectZone(hDoc, hDC, nPageIndex, nZoneIndex, bSelect)

L_HDOC 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	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 (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.

Functions:	L_DocLockPage, L_DocUnlockPage, L_DocSetActivePage, L_DocDrawPage, L_DocSelectZoneByPoint, L_DocRemoveSelectedZone, L_DocSetZonePen, L_DocSetSelectedZonePen, L_DocGetSelectedZone, L_DocZone
Topics:	OCR Functions: Drawing Zones and Pages
	Drawing Pages and Zones