ULONG Release();
Decreases the reference count of the Direct3DRMMaterial object by 1. This method is part of the IUnknown interface inherited by Direct3DRMMaterial.
·Returns the new reference count of the object.
The Direct3DRMMaterial object deallocates itself when its reference count reaches 0. Use the IDirect3DRMMaterial::AddRef method to increase the reference count of the object by 1.