160 lines
7.3 KiB
C++
160 lines
7.3 KiB
C++
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/*
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* dataobject.hxx
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*
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*
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* Copyright (c) 1998-1999 Microsoft Corporation
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*
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* PURPOSE: Defines the dataobject class.
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*
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*
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* OWNER: ptousig
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*/
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#ifndef _DATAOBJECT_HXX
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#define _DATAOBJECT_HXX
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#include <mmc.h>
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//
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// These are the clipboard format that we defined.
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//
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//
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// These are clipboard formats from others that we need to know about.
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// $REVIEW (ptousig) Don't they provide these names in some header file ?
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//
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#define CF_MMC_SNAPIN_MACHINE_NAME _T("MMC_SNAPIN_MACHINE_NAME")
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#define CF_EXCHANGE_ADMIN_HSCOPEITEM _T("ADMIN_HSCOPEITEM")
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// -----------------------------------------------------------------------------
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// This is a virtual class. It implements the IDataObject interface. It also
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// defines a set of methods that must be implemented by its descendants.
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//
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class CBaseDataObject : public IDataObject, public CComObjectRoot
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{
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public:
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CBaseDataObject(void)
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{
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}
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~CBaseDataObject(void)
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{
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}
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public:
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//
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// "Sc" version of IDataObject interface
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//
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SC ScGetDataHere(FORMATETC *pformatetc, STGMEDIUM *pmedium);
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SC ScGetData(FORMATETC *pformatetc, STGMEDIUM *pmedium);
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SC ScQueryGetData(FORMATETC *pformatetc);
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SC ScEnumFormatEtc(DWORD dwDirection, LPENUMFORMATETC* ppEnumFormatEtc);
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// Indicates if this data item is for multiselect or not (default: no)
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virtual BOOL FIsMultiSelectDataObject() { return FALSE;}
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// Returns the most derived class' name.
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virtual const char *SzGetSnapinItemClassName(void)
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{
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return typeid(*this).name()+6; // +6 to remove "class "
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}
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//
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// IDataObject interface
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//
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STDMETHOD(GetDataHere)(FORMATETC *pformatetc, STGMEDIUM *pmedium);
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STDMETHOD(GetData)(FORMATETC *pformatetc, STGMEDIUM *pmedium);
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STDMETHOD(QueryGetData)(FORMATETC *pformatetc);
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STDMETHOD(EnumFormatEtc)(DWORD dwDirection, LPENUMFORMATETC* ppEnumFormatEtc);
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STDMETHOD(GetCanonicalFormatEtc)(LPFORMATETC lpFormatetcIn, LPFORMATETC lpFormatetcOut) { return E_NOTIMPL;}
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STDMETHOD(SetData)(LPFORMATETC lpFormatetc, LPSTGMEDIUM lpMedium, BOOL bRelease) { return E_NOTIMPL;}
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STDMETHOD(DAdvise)(LPFORMATETC lpFormatetc, DWORD advf, LPADVISESINK pAdvSink, LPDWORD pdwConnection) { return E_NOTIMPL;}
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STDMETHOD(DUnadvise)(DWORD dwConnection) { return E_NOTIMPL;}
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STDMETHOD(EnumDAdvise)(LPENUMSTATDATA* ppEnumAdvise) { return E_NOTIMPL;}
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protected:
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// Some functions are for override only: we will not provide a default behaviour.
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virtual SC ScWriteAdminHscopeitem(IStream *pstream) { return E_NOTIMPL;}
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virtual SC ScWriteDisplayName(IStream *pstream) { return E_NOTIMPL;}
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virtual SC ScWriteNodeType(IStream *pstream) { return E_NOTIMPL;}
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virtual SC ScWriteSzNodeType(IStream *pstream) { return E_NOTIMPL;}
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virtual SC ScWriteClsid(IStream *pstream) { return E_NOTIMPL;}
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virtual SC ScWriteNodeID(IStream *pstream) { return E_NOTIMPL;}
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virtual SC ScWriteColumnSetId(IStream *pstream) { return E_NOTIMPL;}
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virtual SC ScWriteMultiSelectionItemTypes(IStream * pstream) { return E_NOTIMPL;}
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virtual SC ScWriteAnsiName(IStream *pStream ) { return E_NOTIMPL;}
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// static functions
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public:
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static SC ScGetNodeType (LPDATAOBJECT lpDataObject, CLSID *pclsid) { return ScGetGUID(s_cfNodeType, lpDataObject, pclsid);}
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static SC ScGetClassID (LPDATAOBJECT lpDataObject, CLSID *pclsid) { return ScGetGUID(s_cfSnapinClsid, lpDataObject, pclsid);}
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static SC ScGetNodeID (LPDATAOBJECT lpDataObject, SNodeID **ppsnodeid);
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static SC ScGetAdminHscopeitem (LPDATAOBJECT lpDataObject, HSCOPEITEM *phscopeitem) { return ScGetDword(s_cfAdminHscopeitem, lpDataObject, (DWORD *) phscopeitem);}
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static SC ScGetMMCSnapinMachineName (LPDATAOBJECT lpDataObject, tstring& str) { return ScGetString(s_cfMMCSnapinMachineName, lpDataObject, str);}
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static SC ScGetDisplayName (LPDATAOBJECT lpDataObject, tstring& str) { return ScGetString(s_cfDisplayName, lpDataObject, str);}
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static SC ScGetColumnSetID (LPDATAOBJECT lpDataObject, SColumnSetID ** ppColumnSetID);
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// For MMC only - static SC ScGetMultiSelectionItemTypes(LPDATAOBJECT lpDataObject, SMMCObjectTypes ** ppMMCObjectTypes);
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private:
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static SC ScGetString(UINT cf, LPDATAOBJECT lpDataObject, tstring& str);
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static SC ScGetBool(UINT cf, LPDATAOBJECT lpDataObject, BOOL *pf);
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static SC ScGetDword(UINT cf, LPDATAOBJECT lpDataObject, DWORD *pdw);
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static SC ScGetGUID(UINT cf, LPDATAOBJECT lpDataObject, GUID *pguid);
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private:
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static UINT s_cfDisplayName; // The string to display for this node
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static UINT s_cfNodeType; // The nodetype's GUID (in binary format)
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static UINT s_cfSzNodeType; // The nodetype's GUID (in string format)
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static UINT s_cfSnapinClsid; // The snapin's CLSID (in binary format)
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static UINT s_cfNodeID; // Some unique ID for this node
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static UINT s_cfAdminHscopeitem; // The HSCOPEITEM of this node
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static UINT s_cfMMCSnapinMachineName; // Format supplied by the Computer manager snapin. Passes in the name of the server.
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static UINT s_cfColumnSetId; // MMC column set id
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static UINT s_cfMultiSelectionItemTypes; // Multiselect - list of types for the selected nodes
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#ifdef DBG
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//
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// No retail versions of this method !!!
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// Should only be called from Trace functions.
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//
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static LPTSTR SzDebugNameFromFormatEtc(UINT format);
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#endif
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};
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#ifdef DBG
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class CEnumFormatEtc :
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public IEnumFORMATETC,
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public CComObjectRootEx<CComObjectThreadModel>
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{
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public:
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CEnumFormatEtc(void) { m_dwIndex = 0;}
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virtual ~CEnumFormatEtc(void) {}
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BEGIN_COM_MAP(CEnumFormatEtc)
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COM_INTERFACE_ENTRY(IEnumFORMATETC)
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END_COM_MAP()
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STDMETHOD(Next)(
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/* [in] */ ULONG celt,
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/* [length_is][size_is][out] */ FORMATETC *rgelt,
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/* [out] */ ULONG *pceltFetched);
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STDMETHOD(Skip)(
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/* [in] */ ULONG celt)
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{ return S_FALSE;}
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STDMETHOD(Reset)( void)
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{ m_dwIndex = 0; return S_OK;}
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virtual HRESULT STDMETHODCALLTYPE Clone(
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/* [out] */ IEnumFORMATETC **ppenum)
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{ return QueryInterface(__uuidof(IEnumFORMATETC),(void **) ppenum );}
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private:
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DWORD m_dwIndex;
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};
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#endif // DBG
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#endif // _DATAOBJECT_HXX
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