Requests a custom curve value for the current progress value.
Original signature is '- (float)animation:(NSAnimation *)animation valueForProgress:(NSAnimationProgress)progress'
Available in Mac OS X v10.4 and later.

C# | Visual Basic | Visual C++ |
public float AnimationValueForProgressMessage( NSAnimation animation, float progress )
Public Function AnimationValueForProgressMessage ( _ animation As NSAnimation, _ progress As Single _ ) As Single
public: float AnimationValueForProgressMessage( NSAnimation^ animation, float progress )

- animation (NSAnimation)
- An NSAnimation object that is running.
- progress (Single)
- A float value (typed as NSAnimationProgress) that indicates a progress mark of animation. This value is always between 0.0 and 1.0.

A float value representing a custom curve.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)