L_Doc2SelectZone

#include "ltdoc2.h"

L_LTDOC2_API L_INT EXT_FUNCTION L_Doc2SelectZone(hDoc, hDC, nPageIndex, nZoneIndex, bSelect)

Selects or deselects the specified zone in the specified page and draws the results into the specified device context (L_HDC).

Parameters

L_HDOC2 hDoc

Handle to the OCR document.

HDC 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.

L_INT nPageIndex

Index of the page, which contains the zone. This index is zero-based.

L_INT nZoneIndex

Index of the zone that will be selected or deselected. This index is zero-based.

L_BOOL 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

Value Meaning
SUCCESS The function was successful.
< 1 An error occurred. Refer to Return Codes.

Comments

To draw a page, call the L_Doc2DrawPage / L_Doc2DrawPageExt function.

To select a zone by specifying a hit point, call the L_Doc2SelectZoneByPoint / L_Doc2SelectZoneByPointExt function.

Required DLLs and Libraries

Help Version 21.0.2021.1.7
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