82 lines
1.9 KiB
C++
82 lines
1.9 KiB
C++
#include "pch.hxx"
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#include "unknlist.h"
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#include <BadStrFunctions.h>
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// ******************************************************
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CUnknownList::~CUnknownList()
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{
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if (m_pList)
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m_pList->Release();
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}
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// ******************************************************
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ULONG CUnknownList::AddRef(void)
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{
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m_cRefCount++;
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return S_OK;
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}
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// ******************************************************
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ULONG CUnknownList::Release(void)
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{
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m_cRefCount--;
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if (0 == m_cRefCount)
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delete this;
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return S_OK;
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}
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// ******************************************************
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HRESULT CUnknownList::AddItem(IUnknown *pIUnk, DWORD *pdwHandle)
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{
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HRESULT hr = m_pList->AddItem(LPVOID(pIUnk), pdwHandle);
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if (SUCCEEDED(hr))
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pIUnk->AddRef();
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return hr;
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}
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// ******************************************************
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HRESULT CUnknownList::GetNext(LISTDIRECTION bDirection, IUnknown **ppIUnk, DWORD *pdwHandle)
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{
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HRESULT hr = m_pList->GetNext(bDirection, reinterpret_cast<void**>(ppIUnk), pdwHandle);
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if (SUCCEEDED(hr))
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(*ppIUnk)->AddRef();
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return hr;
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}
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// ======================================================
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// Static functions
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// ======================================================
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HRESULT CUnknownList::CreateInstance(CUnknownList** ppList)
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{
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HRESULT hr = S_OK;
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// Create me
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CUnknownList *pNew = new CUnknownList;
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if (NULL == pNew)
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hr = E_OUTOFMEMORY;
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hr = IVoidPtrList_CreateInstance(&(pNew->m_pList));
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if (NULL == pNew->m_pList)
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{
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delete pNew;
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pNew = NULL;
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}
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*ppList = pNew;
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// Done
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return hr;
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}
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HRESULT IUnknownList_CreateInstance(IUnknownList** ppList)
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{
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CUnknownList* pList;
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HRESULT hr = CUnknownList::CreateInstance(&pList);
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if (SUCCEEDED(hr))
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*ppList = static_cast<IUnknownList*>(pList);
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else
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*ppList = NULL;
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return hr;
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}
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