423 lines
9.7 KiB
C
423 lines
9.7 KiB
C
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/*
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Copyright (c) 1998-1999 Microsoft Corporation
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*/
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#ifndef _MSPCOLL_H_
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#pragma option push -b -a8 -pc -A- /*P_O_Push*/
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#define _MSPCOLL_H_
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////////////////////////////////////////////////////////////////////////
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// CTapiIfCollection -- adapted from tapi3 code
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// Collection template for collections of IDispatch interfaces
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//
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////////////////////////////////////////////////////////////////////////
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template <class T> class CTapiIfCollection :
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public IDispatchImpl<ITCollection, &IID_ITCollection, &LIBID_TAPI3Lib>,
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public CComObjectRootEx<CComMultiThreadModelNoCS>
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{
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public:
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typedef CTapiIfCollection<T> _CTapiCollectionBase;
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BEGIN_COM_MAP(_CTapiCollectionBase)
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COM_INTERFACE_ENTRY(IDispatch)
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COM_INTERFACE_ENTRY(ITCollection)
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END_COM_MAP()
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private:
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int m_nSize;
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CComVariant * m_Var;
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public:
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// ZoltanS: added constructor
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CTapiIfCollection(void) : m_nSize(0), m_Var(NULL) { }
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// initialize
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HRESULT STDMETHODCALLTYPE Initialize(
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DWORD dwSize,
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T * pBegin,
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T * pEnd
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)
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{
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int i;
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HRESULT hr;
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T * iter;
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LOG((MSP_TRACE, "CTapiCollection::Initialize - enter"));
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// create variant array
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m_nSize = dwSize;
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m_Var = new CComVariant[m_nSize];
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if (m_Var == NULL)
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{
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// debug output
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return E_OUTOFMEMORY;
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}
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i = 0;
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for (iter = pBegin; iter != pEnd; iter++)
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{
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// get IDispatch pointer
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IDispatch * pDisp = NULL;
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hr = (*iter)->QueryInterface(IID_IDispatch, (void**)&pDisp);
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if (hr != S_OK)
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{
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return hr;
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}
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// create a variant and add it to the collection
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CComVariant& var = m_Var[i];
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VariantInit(&var);
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var.vt = VT_DISPATCH;
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var.pdispVal = pDisp;
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i++;
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}
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LOG((MSP_TRACE, "CTapiCollection::Initialize - exit"));
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return S_OK;
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}
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void FinalRelease()
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{
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LOG((MSP_TRACE, "CTapiCollection::FinalRelease - enter"));
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//
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// We "new"ed an array of objects. Delete each object in the array. The
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// destructor for each object calls VariantClear to release the pointer
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// in that object, based on the variant's tag.
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//
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delete [] m_Var;
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LOG((MSP_TRACE, "CTapiCollection::FinalRelease - exit"));
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}
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STDMETHOD(get_Count)(
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long* retval
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)
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{
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HRESULT hr = S_OK;
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LOG((MSP_TRACE, "CTapiCollection::get_Count - enter"));
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try
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{
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*retval = m_nSize;
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}
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catch(...)
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{
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hr = E_INVALIDARG;
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}
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LOG((MSP_TRACE, "CTapiCollection::get_Count - exit"));
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return hr;
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}
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STDMETHOD(get_Item)(
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long Index,
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VARIANT* retval
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)
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{
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HRESULT hr = S_OK;
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LOG((MSP_TRACE, "CTapiCollection::get_Item - enter"));
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if (retval == NULL)
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{
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return E_POINTER;
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}
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try
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{
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VariantInit(retval);
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}
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catch(...)
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{
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hr = E_INVALIDARG;
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}
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if (hr != S_OK)
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{
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return hr;
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}
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retval->vt = VT_UNKNOWN;
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retval->punkVal = NULL;
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// use 1-based index, VB like
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if ((Index < 1) || (Index > m_nSize))
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{
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return E_INVALIDARG;
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}
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VariantCopy(retval, &m_Var[Index-1]);
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LOG((MSP_TRACE, "CTapiCollection::get_Item - exit"));
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return S_OK;
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}
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HRESULT STDMETHODCALLTYPE get__NewEnum(
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IUnknown** retval
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)
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{
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HRESULT hr;
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LOG((MSP_TRACE, "CTapiCollection::new__Enum - enter"));
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if (retval == NULL)
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{
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return E_POINTER;
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}
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*retval = NULL;
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typedef CComObject<CSafeComEnum<IEnumVARIANT, &IID_IEnumVARIANT, VARIANT, _Copy<VARIANT> > > enumvar;
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enumvar* p; // = new enumvar;
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hr = enumvar::CreateInstance( &p );
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if ( FAILED(hr) )
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{
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// debug output
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return hr;
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}
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hr = p->Init(&m_Var[0], &m_Var[m_nSize], NULL, AtlFlagCopy);
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if (SUCCEEDED(hr))
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{
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hr = p->QueryInterface(IID_IEnumVARIANT, (void**)retval);
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}
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if (FAILED(hr))
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{
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delete p;
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}
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LOG((MSP_TRACE, "CTapiCollection::new__Enum - exit"));
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return hr;
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}
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};
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////////////////////////////////////////////////////////////////////////
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// CTapiBstrCollection -- adapted from tapi3 code
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// Collection of BSTRs.
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////////////////////////////////////////////////////////////////////////
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class CTapiBstrCollection :
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public CComObjectRootEx<CComMultiThreadModelNoCS>,
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public IDispatchImpl<ITCollection, &IID_ITCollection, &LIBID_TAPI3Lib>
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{
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public:
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BEGIN_COM_MAP(CTapiBstrCollection)
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COM_INTERFACE_ENTRY(IDispatch)
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COM_INTERFACE_ENTRY(ITCollection)
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END_COM_MAP()
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private:
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DWORD m_dwSize;
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CComVariant * m_Var;
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public:
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// ZoltanS: added constructor
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CTapiBstrCollection(void) : m_dwSize(0), m_Var(NULL) { }
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// initialize
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HRESULT STDMETHODCALLTYPE Initialize(
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DWORD dwSize,
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BSTR * pBegin,
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BSTR * pEnd
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)
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{
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BSTR * i;
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DWORD dw = 0;
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LOG((MSP_TRACE, "CTapiBstrCollection::Initialize - enter"));
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// create variant array
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m_dwSize = dwSize;
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m_Var = new CComVariant[m_dwSize];
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if (m_Var == NULL)
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{
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// debug output
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return E_OUTOFMEMORY;
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}
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for (i = pBegin; i != pEnd; i++)
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{
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// create a variant and add it to the collection
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CComVariant& var = m_Var[dw];
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var.vt = VT_BSTR;
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var.bstrVal = *i;
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dw++;
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}
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LOG((MSP_TRACE, "CTapiBstrCollection::Initialize - exit"));
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return S_OK;
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}
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STDMETHOD(get_Count)(
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long* retval
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)
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{
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HRESULT hr = S_OK;
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LOG((MSP_TRACE, "CTapiBstrCollection::get_Count - enter"));
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try
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{
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*retval = m_dwSize;
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}
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catch(...)
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{
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hr = E_INVALIDARG;
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}
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LOG((MSP_TRACE, "CTapiBstrCollection::get_Count - exit"));
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return hr;
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}
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STDMETHOD(get_Item)(
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long Index,
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VARIANT* retval
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)
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{
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HRESULT hr = S_OK;
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LOG((MSP_TRACE, "CTapiBstrCollection::get_Item - enter"));
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if (retval == NULL)
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{
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return E_POINTER;
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}
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try
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{
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VariantInit(retval);
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}
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catch(...)
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{
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hr = E_INVALIDARG;
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}
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if (hr != S_OK)
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{
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return hr;
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}
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retval->vt = VT_BSTR;
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retval->bstrVal = NULL;
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// use 1-based index, VB like
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// ZoltanS: no problem with signed/unsigned, since
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// if Index < 0 then first clause is true, making it
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// irrelevant if the second clause is correct or not.
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if ((Index < 1) || ( (DWORD) Index > m_dwSize))
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{
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return E_INVALIDARG;
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}
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//
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// This copies the string, not just the pointer.
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//
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VariantCopy(retval, &m_Var[Index-1]);
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LOG((MSP_TRACE, "CTapiBstrCollection::get_Item - exit"));
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return S_OK;
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}
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HRESULT STDMETHODCALLTYPE get__NewEnum(
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IUnknown** retval
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)
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{
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HRESULT hr;
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LOG((MSP_TRACE, "CTapiBstrCollection::get__NumEnum - enter"));
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if (retval == NULL)
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{
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return E_POINTER;
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}
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*retval = NULL;
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typedef CComObject<CSafeComEnum<IEnumVARIANT, &IID_IEnumVARIANT, VARIANT, _Copy<VARIANT> > > enumvar;
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enumvar* p = new enumvar;
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if ( p == NULL)
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{
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// debug output
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return E_OUTOFMEMORY;
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}
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hr = p->Init(&m_Var[0], &m_Var[m_dwSize], NULL, AtlFlagCopy);
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if (SUCCEEDED(hr))
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{
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hr = p->QueryInterface(IID_IEnumVARIANT, (void**)retval);
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}
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if (FAILED(hr))
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{
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delete p;
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}
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LOG((MSP_TRACE, "CTapiBstrCollection::get__NewEnum - exit"));
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return hr;
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}
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void FinalRelease()
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{
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LOG((MSP_TRACE, "CTapiBstrCollection::FinalRelease() - enter"));
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//
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// We "new"ed an array of objects. Delete each object in the array. The
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// destructor for each object calls VariantClear to release the pointer
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// in that object, based on the variant's tag.
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//
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delete [] m_Var;
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LOG((MSP_TRACE, "CTapiBstrCollection::FinalRelease() - exit"));
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}
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};
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#pragma option pop /*P_O_Pop*/
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#endif // _MSPCOLL_H_
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// eof
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