프로그래밍을 일상 생활속으로

샘플 코드 void DisableSinglenullMode(){ CWinApp* pWinApp = acedGetAcadWinApp(); if(!pWinApp) return; CComPtr<IDispatch> pDisp = pWinApp->GetIDispatch(TRUE); if(!pDisp) return; CComPtr<IAcadApplication> pComApp; HRESULT hr = pDisp->QueryInterface(IID_IAcadApplication,(void**)&pComApp); if(FAILED(hr)) return; CComPtr<IAcadPreferences> pPreferences; pComApp->get_Preferences(&pPreferences); CComPtr<IAcadPreferencesSystem> pPreferSystem; pPreferences->get_System(&pPreferSystem); _variant_t b(VARIANT_FALSE); pPreferSystem->put_SinglenullMode(b); }