153 lines
2.4 KiB
C++
153 lines
2.4 KiB
C++
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//*******************************************************************************************
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//
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// Filename : Enum.cpp
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//
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// Implementation for CEnumCabObjs
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//
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// Copyright (c) 1994 - 1996 Microsoft Corporation. All rights reserved
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//
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//*******************************************************************************************
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#include "pch.h"
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#include "thisdll.h"
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#include "enum.h"
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// *** IUnknown methods ***
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STDMETHODIMP CEnumCabObjs::QueryInterface(
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REFIID riid,
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LPVOID FAR* ppvObj)
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{
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*ppvObj = NULL;
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LPUNKNOWN pObj;
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if (riid == IID_IUnknown)
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{
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pObj = (IUnknown*)((IEnumIDList*)this);
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}
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else if (riid == IID_IEnumIDList)
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{
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pObj = (IUnknown*)((IEnumIDList*)this);
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}
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else
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{
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return(E_NOINTERFACE);
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}
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pObj->AddRef();
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*ppvObj = pObj;
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return(NOERROR);
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}
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STDMETHODIMP_(ULONG) CEnumCabObjs::AddRef(void)
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{
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return(m_cRef.AddRef());
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}
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STDMETHODIMP_(ULONG) CEnumCabObjs::Release(void)
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{
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if (!m_cRef.Release())
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{
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delete this;
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return(0);
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}
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return(m_cRef.GetRef());
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}
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// *** IEnumIDList methods ***
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STDMETHODIMP CEnumCabObjs::Next(ULONG celt,
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LPITEMIDLIST *rgelt,
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ULONG *pceltFetched)
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{
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*rgelt = NULL;
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if (pceltFetched)
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{
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*pceltFetched = 0;
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}
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HRESULT hRes = m_pcfThis->InitItems();
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if (FAILED(hRes))
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{
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return(hRes);
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}
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for ( ; ; ++m_iCount)
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{
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if (m_iCount >= m_pcfThis->m_lItems.GetCount())
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{
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return(S_FALSE);
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}
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LPCABITEM pit = m_pcfThis->m_lItems[m_iCount];
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if ((m_uFlags&(SHCONTF_FOLDERS|SHCONTF_NONFOLDERS))
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!= (SHCONTF_FOLDERS|SHCONTF_NONFOLDERS))
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{
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DWORD gfInOut = SFGAO_FOLDER;
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if (FAILED(m_pcfThis->GetAttributesOf(1, (LPCITEMIDLIST *)&pit, &gfInOut)))
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{
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continue;
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}
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if (!(m_uFlags&SHCONTF_FOLDERS) && (gfInOut&SFGAO_FOLDER))
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{
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continue;
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}
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if ((m_uFlags&SHCONTF_FOLDERS) && !(gfInOut&SFGAO_FOLDER))
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{
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continue;
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}
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}
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if (!(m_uFlags&SHCONTF_INCLUDEHIDDEN)
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&& (pit->uFileAttribs&(FILE_ATTRIBUTE_HIDDEN|FILE_ATTRIBUTE_SYSTEM)))
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{
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continue;
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}
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break;
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}
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*rgelt = ILClone((LPCITEMIDLIST)m_pcfThis->m_lItems[m_iCount]);
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++m_iCount;
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if (*rgelt)
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{
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if (pceltFetched)
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{
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*pceltFetched = 1;
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}
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return(S_OK);
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}
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return(E_OUTOFMEMORY);
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}
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STDMETHODIMP CEnumCabObjs::Skip(ULONG celt)
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{
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return(E_NOTIMPL);
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}
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STDMETHODIMP CEnumCabObjs::Reset()
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{
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m_iCount = 0;
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return(NOERROR);
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}
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STDMETHODIMP CEnumCabObjs::Clone(IEnumIDList **ppenum)
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{
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return(E_NOTIMPL);
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}
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