QueryInterface

[qur]

Hi Is QueryInterface call AddRef() ? STDMETHODIMP CPatternGenerator::GetLayout(long lIndex, ILayout ** pVal) { // TODO: Add your implementation code here if (lIndex >=0 && lIndex < m_vLayoutList.size()){ m_vLayoutList[lIndex]->QueryInterface(IID_ILayout, (void**) pVal); m_vLayoutList[lIndex]->AddRef(); // Is this statement required. return S_OK; } return E_INVALIDARG; } My understanding is that QueryInterface has already called AddRef so we dont need it. Am i correct? Thanks Qur

[Tim Smith]

Yes, the returned interface has incremented the reference count prior to being returned to you. Tim Smith I'm going to patent thought. I have yet to see any prior art.