IEnumFORMATETCImpl Class Reference

Inheritance diagram for IEnumFORMATETCImpl:

Collaboration diagram for IEnumFORMATETCImpl:

Public Member Functions
	IEnumFORMATETCImpl ()
	~IEnumFORMATETCImpl ()
HRESULT WINAPI	Initialize (UINT cfmt, const FORMATETC afmt[])
STDMETHOD()	Next (ULONG celt, FORMATETC *rgelt, ULONG *pceltFethed) override
STDMETHOD()	Skip (ULONG celt) override
STDMETHOD()	Reset () override
STDMETHOD()	Clone (LPENUMFORMATETC *ppenum) override
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 ()
Public Member Functions inherited from IEnumFORMATETC
HRESULT	Next ([in] ULONG celt, [out, size_is(celt), length_is(*pceltFetched)] FORMATETC *rgelt, [out] ULONG *pceltFetched)
HRESULT	RemoteNext ([in] ULONG celt, [out, size_is(celt), length_is(*pceltFetched)] FORMATETC *rgelt, [out] ULONG *pceltFetched)
HRESULT	Skip ([in] ULONG celt)
HRESULT	Reset ()
HRESULT	Clone ([out] IEnumFORMATETC **ppenum)
Public Member Functions inherited from IUnknown
HRESULT	QueryInterface ([in] REFIID riid, [out, iid_is(riid)] void **ppvObject)
ULONG	AddRef ()
ULONG	Release ()

Private Attributes
UINT	posFmt
UINT	countFmt
LPFORMATETC	pFmt

Additional Inherited Members
Public Types inherited from IEnumFORMATETC
typedef IEnumFORMATETC *	LPENUMFORMATETC
typedef struct IEnumFORMATETC::tagDVTARGETDEVICE	DVTARGETDEVICE
typedef CLIPFORMAT *	LPCLIPFORMAT
typedef struct IEnumFORMATETC::tagFORMATETC	FORMATETC
typedef struct IEnumFORMATETC::tagFORMATETC *	LPFORMATETC
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 17 of file CIDLDataObj.cpp.

Constructor & Destructor Documentation

IEnumFORMATETCImpl()

IEnumFORMATETCImpl::IEnumFORMATETCImpl

(

)

Definition at line 41 of file CIDLDataObj.cpp.

{
    posFmt = 0;
    countFmt = 0;
    pFmt = NULL;
}

~IEnumFORMATETCImpl()

IEnumFORMATETCImpl::~IEnumFORMATETCImpl

(

)

Definition at line 48 of file CIDLDataObj.cpp.

{
}

Member Function Documentation

Clone()

HRESULT WINAPI IEnumFORMATETCImpl::Clone ( LPENUMFORMATETC *  ppenum )

override

Definition at line 108 of file CIDLDataObj.cpp.

{
    HRESULT hResult;
 
    TRACE("(%p)->(ppenum=%p)\n", this, ppenum);
 
    if (!ppenum) return E_INVALIDARG;
    hResult = IEnumFORMATETC_Constructor(countFmt, pFmt, ppenum);
    if (FAILED_UNEXPECTEDLY(hResult))
        return hResult;
    return (*ppenum)->Skip(posFmt);
}

Initialize()

HRESULT WINAPI IEnumFORMATETCImpl::Initialize	(	UINT	cfmt,
		const FORMATETC	afmt[]
	)

Definition at line 52 of file CIDLDataObj.cpp.

{
    DWORD size;
 
    size = cfmt * sizeof(FORMATETC);
    countFmt = cfmt;
    pFmt = (LPFORMATETC)SHAlloc(size);
    if (pFmt == NULL)
        return E_OUTOFMEMORY;
 
    memcpy(pFmt, afmt, size);
    return S_OK;
}

Next()

HRESULT WINAPI IEnumFORMATETCImpl::Next ( ULONG  celt, FORMATETC *  rgelt, ULONG *  pceltFethed  )

override

Implements IEnumFORMATETC.

Definition at line 66 of file CIDLDataObj.cpp.

{
    UINT i;
 
    TRACE("(%p)->(%u,%p)\n", this, celt, rgelt);
 
    if (!pFmt)
        return S_FALSE;
    if (!rgelt)
        return E_INVALIDARG;
    if (pceltFethed)
        *pceltFethed = 0;
 
    for (i = 0; posFmt < countFmt && celt > i; i++)
    {
        *rgelt++ = pFmt[posFmt++];
    }
 
    if (pceltFethed)
        *pceltFethed = i;
 
    return ((i == celt) ? S_OK : S_FALSE);
}

Reset()

HRESULT WINAPI IEnumFORMATETCImpl::Reset ( )

override

Implements IEnumFORMATETC.

Definition at line 100 of file CIDLDataObj.cpp.

{
    TRACE("(%p)->()\n", this);
 
    posFmt = 0;
    return S_OK;
}

Skip()

HRESULT WINAPI IEnumFORMATETCImpl::Skip ( ULONG  celt )

override

Implements IEnumFORMATETC.

Definition at line 90 of file CIDLDataObj.cpp.

{
    TRACE("(%p)->(num=%u)\n", this, celt);
 
    if (posFmt + celt >= countFmt)
        return S_FALSE;
    posFmt += celt;
    return S_OK;
}

Member Data Documentation

countFmt

UINT IEnumFORMATETCImpl::countFmt

private

Definition at line 23 of file CIDLDataObj.cpp.

Referenced by Clone(), IEnumFORMATETCImpl(), Initialize(), and Skip().

pFmt

LPFORMATETC IEnumFORMATETCImpl::pFmt

private

Definition at line 24 of file CIDLDataObj.cpp.

Referenced by Clone(), IEnumFORMATETCImpl(), Initialize(), and Next().

posFmt

UINT IEnumFORMATETCImpl::posFmt

private

Definition at line 22 of file CIDLDataObj.cpp.

Referenced by Clone(), IEnumFORMATETCImpl(), Next(), Reset(), and Skip().

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

• dll/win32/shell32/CIDLDataObj.cpp