CEnumIDList Class Reference

Inheritance diagram for CEnumIDList:

Collaboration diagram for CEnumIDList:

Public Member Functions
	CEnumIDList ()
	~CEnumIDList ()
HRESULT	Initialize ()
virtual HRESULT STDMETHODCALLTYPE	Next (ULONG celt, PITEMID_CHILD *rgelt, ULONG *pceltFetched)
virtual HRESULT STDMETHODCALLTYPE	Skip (ULONG celt)
virtual HRESULT STDMETHODCALLTYPE	Reset ()
virtual HRESULT STDMETHODCALLTYPE	Clone (IEnumIDList **ppenum)
Public Member Functions inherited from ATL::CComObjectRootEx< CComMultiThreadModelNoCS >
	~CComObjectRootEx ()
ULONG	InternalAddRef ()
ULONG	InternalRelease ()
void	Lock ()
void	Unlock ()
HRESULT	_AtlInitialConstruct ()
Public Member Functions inherited from ATL::CComObjectRootBase
	CComObjectRootBase ()
	~CComObjectRootBase ()
void	SetVoid (void *)
HRESULT	_AtlFinalConstruct ()
HRESULT	FinalConstruct ()
void	InternalFinalConstructAddRef ()
void	InternalFinalConstructRelease ()
void	FinalRelease ()
HRESULT	Next ([in] ULONG celt, [out, size_is(celt), length_is(*pceltFetched)] PITEMID_CHILD *rgelt, [out] ULONG *pceltFetched)
HRESULT	Skip ([in] ULONG celt)
HRESULT	Reset ()
HRESULT	Clone ([out] IEnumIDList **ppenum)
Public Member Functions inherited from IUnknown
HRESULT	QueryInterface ([in] REFIID riid, [out, iid_is(riid)] void **ppvObject)
ULONG	AddRef ()
ULONG	Release ()

Private Member Functions
BOOL	AddToEnumList (PITEMID_CHILD pidl)

Private Attributes
LPENUMLIST	m_pFirst
LPENUMLIST	m_pLast
LPENUMLIST	m_pCurrent

Additional Inherited Members
Public Types inherited from IEnumIDList
typedef IEnumIDList *	LPENUMIDLIST
Public Types inherited from IUnknown
typedef IUnknown *	LPUNKNOWN
Static Public Member Functions inherited from ATL::CComObjectRootBase
static void WINAPI	ObjectMain (bool)
static const struct _ATL_CATMAP_ENTRY *	GetCategoryMap ()
static HRESULT WINAPI	InternalQueryInterface (void *pThis, const _ATL_INTMAP_ENTRY *pEntries, REFIID iid, void **ppvObject)
Public Attributes inherited from ATL::CComObjectRootBase
LONG	m_dwRef

Detailed Description

Definition at line 129 of file enumlist.cpp.

Constructor & Destructor Documentation

CEnumIDList()

CEnumIDList::CEnumIDList

(

)

Definition at line 197 of file enumlist.cpp.

                         :
    m_pFirst(NULL),
    m_pLast(NULL),
    m_pCurrent(NULL)
{
}

~CEnumIDList()

CEnumIDList::~CEnumIDList

(

)

Definition at line 204 of file enumlist.cpp.

{
    LPENUMLIST pDelete;
 
    while (m_pFirst)
    {
        pDelete = m_pFirst;
        m_pFirst = pDelete->pNext;
        SHFree(pDelete->pidl);
        SHFree(pDelete);
    }
}

Member Function Documentation

AddToEnumList()

BOOL CEnumIDList::AddToEnumList ( PITEMID_CHILD  pidl )

private

Definition at line 165 of file enumlist.cpp.

{
    LPENUMLIST pNew;
 
    if (!pidl)
        return FALSE;
 
    pNew = static_cast<LPENUMLIST>(SHAlloc(sizeof(ENUMLIST)));
    if (pNew)
    {
        pNew->pNext = NULL;
        pNew->pidl = pidl;
 
        if (!m_pFirst)
        {
            m_pFirst = pNew;
            m_pCurrent = pNew;
        }
 
        if (m_pLast)
        {
            /*add the new item to the end of the list */
            m_pLast->pNext = pNew;
        }
 
        /*update the last item pointer */
        m_pLast = pNew;
        return TRUE;
    }
    return FALSE;
}

Referenced by Initialize().

Clone()

HRESULT WINAPI CEnumIDList::Clone ( IEnumIDList **  ppenum )

virtual

Implements IEnumIDList.

Definition at line 323 of file enumlist.cpp.

{
    return E_NOTIMPL;
}

Initialize()

HRESULT CEnumIDList::Initialize

(

)

Definition at line 218 of file enumlist.cpp.

{
    HRESULT hr;
    CComPtr<INetConnectionManager> pNetConMan;
    CComPtr<IEnumNetConnection> pEnumCon;
    ULONG Count;
    PITEMID_CHILD pidl;
 
    /* get an instance to of IConnectionManager */
    hr = CNetConnectionManager_CreateInstance(IID_PPV_ARG(INetConnectionManager, &pNetConMan));
    if (FAILED_UNEXPECTEDLY(hr))
        return S_OK;
 
    hr = pNetConMan->EnumConnections(NCME_DEFAULT, &pEnumCon);
    if (FAILED_UNEXPECTEDLY(hr))
        return S_OK;
 
    while (TRUE)
    {
        CComPtr<INetConnection> INetCon;
 
        hr = pEnumCon->Next(1, &INetCon, &Count);
        if (hr != S_OK)
            break;
 
        pidl = ILCreateNetConnectItem(INetCon);
        if (pidl)
        {
            AddToEnumList(pidl);
        }
    }
 
    return S_OK;
}

Next()

HRESULT WINAPI CEnumIDList::Next ( ULONG  celt, PITEMID_CHILD *  rgelt, ULONG *  pceltFetched  )

virtual

Implements IEnumIDList.

Definition at line 255 of file enumlist.cpp.

{
    ULONG i;
    HRESULT hr = S_OK;
    PITEMID_CHILD temp;
 
    if (pceltFetched)
        *pceltFetched = 0;
 
    if (celt > 1 && !pceltFetched)
    {
        return E_INVALIDARG;
    }
 
    if (celt > 0 && !m_pCurrent)
    {
        return S_FALSE;
    }
 
    for (i = 0; i < celt; i++)
    {
        if (!m_pCurrent)
            break;
 
        temp = ILClone(m_pCurrent->pidl);
        rgelt[i] = temp;
        m_pCurrent = m_pCurrent->pNext;
    }
 
    if (pceltFetched)
        *pceltFetched = i;
 
    return hr;
}

Reset()

HRESULT WINAPI CEnumIDList::Reset ( )

virtual

Implements IEnumIDList.

Definition at line 315 of file enumlist.cpp.

{
    m_pCurrent = m_pFirst;
    return S_OK;
}

Skip()

HRESULT WINAPI CEnumIDList::Skip ( ULONG  celt )

virtual

Implements IEnumIDList.

Definition at line 295 of file enumlist.cpp.

{
    DWORD dwIndex;
    HRESULT hr = S_OK;
 
    for (dwIndex = 0; dwIndex < celt; dwIndex++)
    {
        if (!m_pCurrent)
        {
            hr = S_FALSE;
            break;
        }
        m_pCurrent = m_pCurrent->pNext;
    }
 
    return hr;
}

Member Data Documentation

m_pCurrent

LPENUMLIST CEnumIDList::m_pCurrent

private

Definition at line 150 of file enumlist.cpp.

Referenced by AddToEnumList(), Next(), Reset(), and Skip().

m_pFirst

LPENUMLIST CEnumIDList::m_pFirst

private

Definition at line 148 of file enumlist.cpp.

Referenced by AddToEnumList(), Reset(), and ~CEnumIDList().

m_pLast

LPENUMLIST CEnumIDList::m_pLast

private

Definition at line 149 of file enumlist.cpp.

Referenced by AddToEnumList().

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The documentation for this class was generated from the following file:

• dll/shellext/netshell/enumlist.cpp