QuickTime 3 Reference

Tween Flags

The following flags modify the characteristics of a tween.



 
enum {

    kTweenReturnDelta= 1L << 0

};

The kTweenReturnDelta flag applies only to path tweens (tweens of type kTweenTypePathToFixedPoint , kTweenTypePathToMatrixTranslation , kTweenTypePathToMatrixTranslationAndRotation , kTweenTypePathXtoY , or kTweenTypePathYtoX ). If the flag is set, the tween component returns the change in value from the last time it was invoked. If the flag is not set, or if the tween component has not previously been invoked, the tween component returns the normal result for the tween.