Removes all events from a specified animation track.
HRESULT UnkeyAllTrackEvents( UINT Track );
If the method succeeds, the return value is S_OK. If the method fails, the following value will be returned: D3DERR_INVALIDCALL.
This method prevents the execution of all events previously scheduled on the track, and discards all data associated with those events.
Header: Declared in D3dx9anim.h.