IDirect3DDevice::Release

ULONG Release();

Decreases the reference count of the Direct3DDevice object by 1. This method is part of the IUnknown interface inherited by Direct3DDevice.

·Returns the new reference count of the object.

The Direct3DDevice object deallocates itself when its reference count reaches 0. Use the IDirect3DDevice::AddRef method to increase the reference count of the object by 1.