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