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_MoveOrientation

You can use the Q3Tracker_MoveOrientation function to set the orientation of a tracker relative to its current orientation.

TQ3Status Q3Tracker_MoveOrientation (
TQ3TrackerObject trackerObject, 
TQ3ControllerRef controllerRef, 
const TQ3Quaternion *delta);

trackerObject

A tracker object.

controllerRef

A reference to a controller.

delta

The desired change in orientation of the specified tracker.

DESCRIPTION

The Q3Tracker_MoveOrientation function adds the value specified by the delta parameter to the orientation of the tracker specified by the trackerObject and controllerRef parameters. If the specified tracker is inactive, Q3Tracker_MoveOrientation has no effect.

Note

Calling Q3Tracker_MoveOrientation might cause the notify function of the tracker to be called.