Sets the track weight. The weight is used to determine how to blend multiple tracks together.
HRESULT SetTrackWeight( UINT Track, FLOAT Weight );
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.
Header: Declared in D3dx9anim.h.