61 lines
1.5 KiB
C++
61 lines
1.5 KiB
C++
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//----------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 2000.
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//
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// File: umiconcf.cxx
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//
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// Contents: Contains the class factory for creating UMI connection objects.
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//
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// History: 03-02-00 SivaramR Created.
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//
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//----------------------------------------------------------------------------
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#include "winnt.hxx"
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//----------------------------------------------------------------------------
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// Function: CreateInstance
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//
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// Synopsis: Creates a connection object.
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//
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// Arguments:
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//
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// pUnkOuter Pointer to aggregating IUnknown. UMI connection objects don't
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// support aggregation, so this has to be NULL.
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// iid Interface requested. Only interface supported is IUmiConnection.
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// ppInterface Returns pointer to interface requested
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//
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// Returns: S_OK on success. Error code otherwise.
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//
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// Modifies: *ppInterface to return a pointer to the interface requested
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//
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//----------------------------------------------------------------------------
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STDMETHODIMP CUmiConnectionCF::CreateInstance(
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IUnknown * pUnkOuter,
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REFIID iid,
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LPVOID *ppInterface
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)
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{
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HRESULT hr = S_OK;
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if(pUnkOuter != NULL)
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// Umi connection object cannot be aggregated
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RRETURN(CLASS_E_NOAGGREGATION);
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if(NULL == ppInterface)
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RRETURN(E_FAIL);
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*ppInterface = NULL;
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hr = CUmiConnection::CreateConnection(iid, ppInterface);
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BAIL_ON_FAILURE(hr);
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error:
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RRETURN(hr);
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}
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