ULONG Release();
Decreases the reference count of the Direct3DRMLight object by 1. This method is part of the IUnknown interface inherited by Direct3DRMLight.
·Returns the new reference count of the object.
The Direct3DRMLight object deallocates itself when its reference count reaches 0. Use the IDirect3DRMLight::AddRef method to increase the reference count of the object by 1.