EnableGestureSetHRC

  1. 0

Enables or disables recognition of specific gestures or collections of gestures in an HRC object.

int EnableGestureSetHRC( HRC hrc, SYV syv, BOOL fEnable )

Parameters

hrc

Handle to the HRC object.

syv

Either a gesture SYV_ symbol value, such as SYV_COPY, or one or more of the following GST_ constants combined using the bitwise-OR operator. Note that individual SYV_ gesture symbol values cannot be combined with GST_ constants.

Constant
Description
GST_SEL
Selection and lasso.
GST_CLIP
Cut, copy, paste.
GST_WHITE
Space, tab, return.
GST_EDIT
Insert, correct, undo.
GST_CIRCLELO
Lowercase circle gestures.
GST_CIRCLEUP
Uppercase circle gestures.
GST_CIRCLE
All circle gestures.
GST_ALL
All gestures.

fEnable

Enable recognition flag. This flag must be set to TRUE to enable recognition of the gesture or gestures in syv, or to FALSE to disable recognition of the specified gestures.

Return Value

Returns HRCR_OK if successful; otherwise, returns one of the following negative values:

Constant
Description
HRCR_ERROR
Invalid parameter or other error.
HRCR_MEMERR
Insufficient memory.
HRCR_UNSUPPORTED
The recognizer does not support this function.

Comments

The results of EnableGestureSetHRC are cumulative. The function can be called several times in succession to refine the precise gesture set required. However, calling EnableGestureSetHRC with syv set to GST_ALL and fEnable set to FALSE disables all gestures.

By default, a recognition context HRC enables all gestures that its associated recognizer supports.

Example

The following example enables selection, Clipboard functions, and SYV_CIRCLEUPA:

EnableGestureSetHRC( hrc, GST_ALL, FALSE ); // Disable all

EnableGestureSetHRC( hrc, GST_SEL | GST_CLIP, TRUE ); // Enable sets

EnableGestureSetHRC( hrc, SYV_CIRCLEUPA, TRUE ); // Enable circle A

See Also

SetAlphabetHRC
, SYV_

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