CProfilesEnumGuid Class Reference

Inheritance diagram for CProfilesEnumGuid:

Collaboration diagram for CProfilesEnumGuid:

Public Member Functions
	CProfilesEnumGuid ()
virtual	~CProfilesEnumGuid ()
STDMETHODIMP	QueryInterface (REFIID iid, LPVOID *ppvObj) override
	STDMETHODIMP_ (ULONG) AddRef() override
	STDMETHODIMP_ (ULONG) Release() override
STDMETHODIMP	Next (_In_ ULONG celt, _Out_ GUID *rgelt, _Out_ ULONG *pceltFetched) override
STDMETHODIMP	Skip (_In_ ULONG celt) override
STDMETHODIMP	Reset () override
STDMETHODIMP	Clone (_Out_ IEnumGUID **ppenum) override
Public Member Functions inherited from IEnumGUID
HRESULT	Next ([in] ULONG celt, [out, size_is(celt), length_is(*pceltFetched)] GUID *rgelt, [out] ULONG *pceltFetched)
HRESULT	Skip ([in] ULONG celt)
HRESULT	Reset ()
HRESULT	Clone ([out] IEnumGUID **ppenum)
Public Member Functions inherited from IUnknown
HRESULT	QueryInterface ([in] REFIID riid, [out, iid_is(riid)] void **ppvObject)
ULONG	AddRef ()
ULONG	Release ()

Static Public Member Functions
static HRESULT	CreateInstance (CProfilesEnumGuid **ppOut)

Protected Attributes
LONG	m_cRefs
HKEY	m_key
DWORD	m_next_index

Additional Inherited Members
Public Types inherited from IEnumGUID
typedef IEnumGUID *	LPENUMGUID
Public Types inherited from IUnknown
typedef IUnknown *	LPUNKNOWN

Detailed Description

Definition at line 167 of file inputprocessor.cpp.

Constructor & Destructor Documentation

CProfilesEnumGuid()

CProfilesEnumGuid::CProfilesEnumGuid

(

)

Definition at line 900 of file inputprocessor.cpp.

    : m_cRefs(1)
    , m_key(NULL)
    , m_next_index(0)
{
}

Referenced by CreateInstance().

~CProfilesEnumGuid()

CProfilesEnumGuid::~CProfilesEnumGuid ( )

virtual

Definition at line 907 of file inputprocessor.cpp.

{
    TRACE("destroying %p\n", this);
    RegCloseKey(m_key);
}

Member Function Documentation

Clone()

STDMETHODIMP CProfilesEnumGuid::Clone ( _Out_ IEnumGUID **  ppenum )

override

Definition at line 998 of file inputprocessor.cpp.

{
    TRACE("(%p)\n", this);
 
    if (!ppenum)
        return E_POINTER;
 
    *ppenum = NULL;
 
    CProfilesEnumGuid *pEnum;
    HRESULT hr = CProfilesEnumGuid::CreateInstance(&pEnum);
    if (SUCCEEDED(hr))
    {
        pEnum->m_next_index = m_next_index;
        *ppenum = static_cast<IEnumGUID *>(pEnum);
    }
 
    return hr;
}

CreateInstance()

HRESULT CProfilesEnumGuid::CreateInstance ( CProfilesEnumGuid **  ppOut )

static

Definition at line 1018 of file inputprocessor.cpp.

{
    CProfilesEnumGuid *This = new(cicNoThrow) CProfilesEnumGuid();
    if (!This)
        return E_OUTOFMEMORY;
 
    if (RegCreateKeyExW(HKEY_LOCAL_MACHINE, szwSystemTIPKey, 0, NULL, 0,
                        KEY_READ | KEY_WRITE, NULL, &This->m_key, NULL) != ERROR_SUCCESS)
    {
        delete This;
        return E_FAIL;
    }
 
    *ppOut = This;
    TRACE("returning %p\n", *ppOut);
    return S_OK;
}

Referenced by Clone(), and CInputProcessorProfiles::EnumInputProcessorInfo().

Next()

STDMETHODIMP CProfilesEnumGuid::Next ( _In_ ULONG  celt, _Out_ GUID *  rgelt, _Out_ ULONG *  pceltFetched  )

override

Definition at line 943 of file inputprocessor.cpp.

{
    ULONG fetched = 0;
 
    TRACE("(%p)\n", this);
 
    if (!rgelt)
        return E_POINTER;
 
    if (m_key)
    {
        while (fetched < celt)
        {
            LSTATUS error;
            HRESULT hr;
            WCHAR catid[39];
            DWORD cName = _countof(catid);
 
            error = RegEnumKeyExW(m_key, m_next_index, catid, &cName, NULL, NULL, NULL, NULL);
            if (error != ERROR_SUCCESS && error != ERROR_MORE_DATA)
                break;
 
            ++m_next_index;
 
            hr = CLSIDFromString(catid, rgelt);
            if (FAILED(hr))
                continue;
 
            ++fetched;
            ++rgelt;
        }
    }
 
    if (pceltFetched)
        *pceltFetched = fetched;
    return fetched == celt ? S_OK : S_FALSE;
}

QueryInterface()

STDMETHODIMP CProfilesEnumGuid::QueryInterface ( REFIID  iid, LPVOID *  ppvObj  )

override

Definition at line 913 of file inputprocessor.cpp.

{
    *ppvObj = NULL;
 
    if (iid == IID_IUnknown || iid == IID_IEnumGUID)
        *ppvObj = static_cast<IEnumGUID *>(this);
 
    if (*ppvObj)
    {
        AddRef();
        return S_OK;
    }
 
    WARN("unsupported interface: %s\n", debugstr_guid(&iid));
    return E_NOINTERFACE;
}

Reset()

STDMETHODIMP CProfilesEnumGuid::Reset ( )

override

Implements IEnumGUID.

Definition at line 991 of file inputprocessor.cpp.

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

Skip()

STDMETHODIMP CProfilesEnumGuid::Skip ( _In_ ULONG  celt )

override

Definition at line 984 of file inputprocessor.cpp.

{
    TRACE("(%p)\n", this);
    m_next_index += celt;
    return S_OK;
}

STDMETHODIMP_() [1/2]

CProfilesEnumGuid::STDMETHODIMP_ ( ULONG  )

override

STDMETHODIMP_() [2/2]

CProfilesEnumGuid::STDMETHODIMP_ ( ULONG  )

override

Member Data Documentation

m_cRefs

LONG CProfilesEnumGuid::m_cRefs

protected

Definition at line 191 of file inputprocessor.cpp.

m_key

HKEY CProfilesEnumGuid::m_key

protected

Definition at line 192 of file inputprocessor.cpp.

Referenced by Next(), and ~CProfilesEnumGuid().

m_next_index

DWORD CProfilesEnumGuid::m_next_index

protected

Definition at line 193 of file inputprocessor.cpp.

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

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

• base/ctf/msctf/inputprocessor.cpp