CMscExtractIcon Class Reference

Inheritance diagram for CMscExtractIcon:

Collaboration diagram for CMscExtractIcon:

Public Member Functions
	CMscExtractIcon ()
	~CMscExtractIcon ()
HRESULT	GetIconLocationFromMsc (_In_ PWSTR pszIconFile, _In_ UINT cchMax, _Out_ int *piIndex)
HRESULT	GetDefaultIconLocation (_In_ PWSTR pszIconFile, _In_ UINT cchMax, _Out_ int *piIndex)
IFACEMETHODIMP	Extract (_In_ PCWSTR pszFile, _In_ UINT nIconIndex, _Out_ HICON *phiconLarge, _Out_ HICON *phiconSmall, _In_ UINT nIconSize) override
IFACEMETHODIMP	GetIconLocation (_In_ UINT GilIn, _In_ PWSTR pszIconFile, _In_ UINT cchMax, _Out_ int *piIndex, _Out_ UINT *GilOut) override
IFACEMETHODIMP	GetClassID (_Out_ CLSID *pClassID) override
IFACEMETHODIMP	IsDirty () override
IFACEMETHODIMP	Load (_In_ LPCOLESTR pszFileName, _In_ DWORD dwMode) override
IFACEMETHODIMP	Save (_In_ LPCOLESTR pszFileName, _In_ BOOL fRemember) override
IFACEMETHODIMP	SaveCompleted (_In_ LPCOLESTR pszFileName) override
IFACEMETHODIMP	GetCurFile (_In_ LPOLESTR *ppszFileName) 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 IExtractIconW
HRESULT	GetIconLocation ([in] UINT uFlags, [out, size_is(cchMax)] LPWSTR szIconFile, [in] UINT cchMax, [out] INT *piIndex, [out] UINT *pwFlags)
HRESULT	Extract ([in] LPCWSTR pszFile, [in] UINT nIconIndex, [out] HICON *phiconLarge, [out] HICON *phiconSmall, [in] UINT nIconSize)
Public Member Functions inherited from IUnknown
HRESULT	QueryInterface ([in] REFIID riid, [out, iid_is(riid)] void **ppvObject)
ULONG	AddRef ()
ULONG	Release ()
Public Member Functions inherited from IPersistFile
HRESULT	IsDirty ()
HRESULT	Load ([in] LPCOLESTR pszFileName, [in] DWORD dwMode)
HRESULT	Save ([in, unique] LPCOLESTR pszFileName, [in] BOOL fRemember)
HRESULT	SaveCompleted ([in, unique] LPCOLESTR pszFileName)
HRESULT	GetCurFile ([out] LPOLESTR *ppszFileName)
Public Member Functions inherited from IPersist
HRESULT	GetClassID ([out] CLSID *pClassID)

Protected Attributes
PWSTR	m_File = NULL

Additional Inherited Members
Public Types inherited from IExtractIconW
typedef IExtractIconW *	LPEXTRACTICONW
Public Types inherited from IUnknown
typedef IUnknown *	LPUNKNOWN
Public Types inherited from IPersistFile
typedef IPersistFile *	LPPERSISTFILE
Public Types inherited from IPersist
typedef IPersist *	LPPERSIST
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 22 of file mmcshext.cpp.

Constructor & Destructor Documentation

CMscExtractIcon()

CMscExtractIcon::CMscExtractIcon ( )

inline

Definition at line 32 of file mmcshext.cpp.

    {
    }

~CMscExtractIcon()

CMscExtractIcon::~CMscExtractIcon ( )

inline

Definition at line 36 of file mmcshext.cpp.

    {
        SHFree(m_File);
    }

Member Function Documentation

Extract()

IFACEMETHODIMP CMscExtractIcon::Extract ( _In_ PCWSTR  pszFile, _In_ UINT  nIconIndex, _Out_ HICON *  phiconLarge, _Out_ HICON *  phiconSmall, _In_ UINT  nIconSize  )

inlineoverride

Definition at line 53 of file mmcshext.cpp.

    {
        return S_FALSE; // All my paths are real files, call SHExtractIconsW/SHDefExtractIconW for me.
    }

GetClassID()

IFACEMETHODIMP CMscExtractIcon::GetClassID ( _Out_ CLSID *  pClassID )

inlineoverride

Definition at line 71 of file mmcshext.cpp.

    {
        return E_NOTIMPL;
    }

GetCurFile()

IFACEMETHODIMP CMscExtractIcon::GetCurFile ( _In_ LPOLESTR *  ppszFileName )

inlineoverride

Definition at line 98 of file mmcshext.cpp.

    {
        return E_NOTIMPL;
    }

GetDefaultIconLocation()

HRESULT CMscExtractIcon::GetDefaultIconLocation ( _In_ PWSTR  pszIconFile, _In_ UINT  cchMax, _Out_ int *  piIndex  )

inline

Definition at line 43 of file mmcshext.cpp.

    {
        *piIndex = 0;
        WCHAR szDir[MAX_PATH + 1 + 8 + 3];
        GetSystemDirectory(szDir, MAX_PATH);
        PathAddBackslashW(szDir);
        return StringCchPrintfW(pszIconFile, cchMax, L"%smmc.exe", szDir) == S_OK ? S_OK : S_FALSE;
    }

Referenced by GetIconLocation().

GetIconLocation()

IFACEMETHODIMP CMscExtractIcon::GetIconLocation ( _In_ UINT  GilIn, _In_ PWSTR  pszIconFile, _In_ UINT  cchMax, _Out_ int *  piIndex, _Out_ UINT *  GilOut  )

inlineoverride

Definition at line 58 of file mmcshext.cpp.

    {
        *GilOut = GIL_PERINSTANCE; // Every .msc file has a unique icon
 
        if (GilIn & GIL_ASYNC)
            return E_PENDING;
 
        if ((GilIn & GIL_DEFAULTICON) || FAILED(GetIconLocationFromMsc(pszIconFile, cchMax, piIndex)))
            return GetDefaultIconLocation(pszIconFile, cchMax, piIndex);
        return S_OK;
    }

GetIconLocationFromMsc()

HRESULT CMscExtractIcon::GetIconLocationFromMsc	(	_In_ PWSTR	pszIconFile,
		_In_ UINT	cchMax,
		_Out_ int *	piIndex
	)

Definition at line 159 of file mmcshext.cpp.

{
    if (!m_File)
        return E_UNEXPECTED;
 
    CComPtr<IStream> pStream;
    HRESULT hr = SHCreateStreamOnFileW(m_File, STGM_READ | STGM_SHARE_DENY_WRITE, &pStream);
    if (FAILED(hr))
        return hr;
 
    VARIANT v;
    V_VT(&v) = VT_UNKNOWN;
    V_UNKNOWN(&v) = pStream;
    CComPtr<IXMLDOMDocument2> pDoc;
    if (FAILED(hr = LoadXmlFromVariant(&v, &pDoc)))
        return hr;
    SetXPathSelectionLanguage(pDoc);
 
    CComPtr<IXMLDOMNode> pDomNode;
    hr = pDoc->selectSingleNode(const_cast<PWSTR>(L"/MMC_ConsoleFile/VisualAttributes/Icon"), &pDomNode);
    if (FAILED(hr))
        return hr;
    if (hr != S_OK) // Some files have an empty <VisualAttributes/> element
        return HRESULT_FROM_WIN32(ERROR_NOT_FOUND);
 
    BSTR bstr;
    *piIndex = 0;
    if (SUCCEEDED(GetAttributeValue(pDomNode, L"Index", &bstr)))
    {
        *piIndex = StrToIntW(bstr);
        SysFreeString(bstr);
    }
 
    if (SUCCEEDED(hr = GetAttributeValue(pDomNode, L"File", &bstr)))
    {
        hr = StringCchCopyW(pszIconFile, cchMax, bstr);
        SysFreeString(bstr);
    }
    return hr;
}

Referenced by GetIconLocation().

IsDirty()

IFACEMETHODIMP CMscExtractIcon::IsDirty ( void  )

inlineoverride

Implements IPersistFile.

Definition at line 76 of file mmcshext.cpp.

    {
        return E_NOTIMPL;
    }

Load()

IFACEMETHODIMP CMscExtractIcon::Load ( _In_ LPCOLESTR  pszFileName, _In_ DWORD  dwMode  )

inlineoverride

Definition at line 81 of file mmcshext.cpp.

    {
        SHFree(m_File);
        m_File = NULL;
        return SHStrDupW(pszFileName, &m_File);
    }

Save()

IFACEMETHODIMP CMscExtractIcon::Save ( _In_ LPCOLESTR  pszFileName, _In_ BOOL  fRemember  )

inlineoverride

Definition at line 88 of file mmcshext.cpp.

    {
        return E_NOTIMPL;
    }

SaveCompleted()

IFACEMETHODIMP CMscExtractIcon::SaveCompleted ( _In_ LPCOLESTR  pszFileName )

inlineoverride

Definition at line 93 of file mmcshext.cpp.

    {
        return E_NOTIMPL;
    }

Member Data Documentation

m_File

PWSTR CMscExtractIcon::m_File = NULL

protected

Definition at line 29 of file mmcshext.cpp.

Referenced by GetIconLocationFromMsc(), Load(), and ~CMscExtractIcon().

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

• dll/shellext/mmcshext/mmcshext.cpp