Enables or disables a track in the animation controller.
HRESULT SetTrackEnable( UINT Track, BOOL Enable );
If the method succeeds, the return value is S_OK. If the method fails, the return value can be one of the following values: D3DERR_INVALIDCALL, E_OUTOFMEMORY.
To mix a track with other tracks, the Enable flag must be set to TRUE. Conversely, setting the flag to FALSE will prevent the track from being mixed with other tracks.
Header: Declared in D3dx9anim.h.