Inside Macintosh: 3D Graphics Programming With QuickDraw 3D /

Chapter 18 - QuickDraw 3D Pointing Device Manager / QuickDraw 3D Pointing Device Manager Reference

QuickDraw 3D Pointing Device Manager Routines / Creating and Managing Trackers

Q3Tracker_SetActivation

You can use the Q3Tracker_SetActivation function to set the activation state of a tracker.

TQ3Status Q3Tracker_SetActivation (
TQ3TrackerObject trackerObject, 
TQ3Boolean active);

trackerObject

A tracker object.

active

A Boolean value that indicates whether the specified tracker is to be made active (kQ3True) or inactive (kQ3False).

DESCRIPTION

The Q3Tracker_SetActivation function sets the activation state of the tracker specified by the trackerObject parameter to the value specified in the active parameter. If the activation state of a tracker is changed, the serial number of the tracker is incremented.