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windows-nt/Source/XPSP1/NT/com/ole32/ole232/stdimpl/oregfmt.cpp
CryptoAlgo Inc b3cac27891 Add source files
2020-09-26 16:20:57 +08:00

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//+-------------------------------------------------------------------------
//
// Microsoft Windows
// Copyright (C) Microsoft Corporation, 1992 - 1993.
//
// File: oregfmt.cpp
//
// Contents: Enumerator implementation for the regdb formatetc's
//
// Classes: CEnumFmt
// CEnumFmt10
//
// Functions: OleRegEnumFormatEtc
//
//
// History: dd-mmm-yy Author Comment
// 01-Feb-95 t-ScottH add Dump methods to CEnumFmt, CEnumFmt10
// and add APIs DumpCEnumFmt, DumpCEnumFmt10
// DumpFMT, DumpFMTCache
// 25-Jan-94 alexgo first pass at converting to Cairo-style
// memory allocations.
// 11-Jan-94 alexgo added VDATEHEAP macros to every function
// 31-Dec-93 erikgav chicago port
// 01-Dec-93 alexgo 32bit port
// 12-Nov-92 jasonful author
//
//--------------------------------------------------------------------------
#include <le2int.h>
#pragma SEG(oregfmt)
#include <reterr.h>
#include "oleregpv.h"
#include <ctype.h>
#include <string.h>
#ifdef _DEBUG
#include <dbgdump.h>
#endif // _DEBUG
ASSERTDATA
#define MAX_STR 256
#define UtRemoveRightmostBit(x) ((x)&((x)-1))
#define UtRightmostBit(x) ((x)^UtRemoveRightmostBit(x))
#define UtIsSingleBit(x) ((x) && (0==UtRemoveRightmostBit(x)))
// reg db key
static const LPCOLESTR DATA_FORMATS = OLESTR("DataFormats\\GetSet");
static INTERNAL CreateEnumFormatEtc10
(REFCLSID clsid,
DWORD dwDirection,
LPENUMFORMATETC FAR* ppenum);
typedef struct FARSTRUCT
{
FORMATETC fmt;
DWORD dwAspects; // aspects not yet returned
BOOL fUseMe; // is the cache valid?
} FMTCACHE;
//+-------------------------------------------------------------------------
//
// Class: CEnumFmt
//
// Purpose: FORMATETC enumerator for regdb formats
//
// Interface: IEnumFORMATETC
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port
//
// Notes:
//
//--------------------------------------------------------------------------
class FAR CEnumFmt : public IEnumFORMATETC, public CPrivAlloc
{
public:
// *** IUnknown methods ***
STDMETHOD(QueryInterface) (THIS_ REFIID riid, LPVOID FAR* ppvObj);
STDMETHOD_(ULONG,AddRef) (THIS);
STDMETHOD_(ULONG,Release) (THIS);
// *** IEnumFORMATETC methods ***
STDMETHOD(Next) (THIS_ ULONG celt, FORMATETC FAR * rgelt,
ULONG FAR* pceltFetched) ;
STDMETHOD(Skip) (THIS_ ULONG celt) ;
STDMETHOD(Reset) (THIS) ;
STDMETHOD(Clone) (THIS_ LPENUMFORMATETC FAR* ppenum) ;
CEnumFmt (LPOLESTR szClsid, DWORD dwDirection, DWORD iKey=0);
STDMETHOD(OpenHKey) (HKEY FAR*);
#ifdef _DEBUG
HRESULT Dump(char **ppszDump, ULONG ulFlag, int nIndentLevel);
#endif // _DEBUG
ULONG m_cRef;
LPOLESTR m_szClsid;
DWORD m_dwDirection;
DWORD m_iKey ; // index of current key in reg db
// We cannot keep an hkey open because Clone (or trying to use any 2
// independent enumerators) would fail.
FMTCACHE m_cache;
};
// For OLE 1.0
typedef struct
{
CLIPFORMAT cf;
DWORD dw; // DATADIR_GET/SET
} FMT;
#ifdef _DEBUG
// for use in CEnumFmt[10] Dump methods
char *DumpFMT(FMT *pFMT, ULONG ulFlag, int nIndentLevel);
char *DumpFMTCACHE(FMTCACHE *pFMTC, ULONG ulFlag, int nIndentLevel);
#endif // _DEBUG
//+-------------------------------------------------------------------------
//
// Class: CEnumFmt10 : CEnumFmt
//
// Purpose: Enumerates OLE1.0 formats
//
// Interface: IEnumFORMATETC
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port
//
// Notes:
//
//--------------------------------------------------------------------------
class FAR CEnumFmt10 : public CEnumFmt
{
public:
STDMETHOD(Next) (THIS_ ULONG celt, FORMATETC FAR * rgelt,
ULONG FAR* pceltFetched) ;
STDMETHOD(Skip) (THIS_ ULONG celt) ;
STDMETHOD(Clone) (THIS_ LPENUMFORMATETC FAR* ppenum) ;
STDMETHOD_(ULONG,Release) (THIS) ;
CEnumFmt10 (LPOLESTR szClsid, DWORD dwDirection, DWORD iKey=0);
STDMETHOD(InitFromRegDb) (HKEY);
STDMETHOD(InitFromScratch) (void);
#ifdef _DEBUG
HRESULT Dump(char **ppszDump, ULONG ulFlag, int nIndentLevel);
#endif // _DEBUG
FMT FAR* m_rgFmt;
size_t m_cFmt; // number of Fmts in m_rgFmt
};
//+-------------------------------------------------------------------------
//
// Member: CEnumFmt::CEnumFmt
//
// Synopsis: Constructor for the formatetc enumerator
//
// Effects:
//
// Arguments: [szClsid] -- the class id to look for
// [dwDirection] -- (either SET or GET)
// [iKey] -- index into the regdb (which formatetc)
//
// Requires:
//
// Returns:
//
// Signals:
//
// Modifies:
//
// Derivation:
//
// Algorithm:
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port
//
// Notes:
//
//--------------------------------------------------------------------------
#pragma SEG(CEnumFmt_ctor)
CEnumFmt::CEnumFmt
(LPOLESTR szClsid,
DWORD dwDirection,
DWORD iKey)
{
VDATEHEAP();
m_cRef = 1;
m_szClsid = szClsid;
m_iKey = iKey;
m_dwDirection = dwDirection;
m_cache.fUseMe = FALSE;
}
//+-------------------------------------------------------------------------
//
// Member: CEnumFmt10::CEnumFmt10
//
// Synopsis: Constructor for the 1.0 formatetc enumerator
//
// Effects:
//
// Arguments: [szClsid] -- the class id to look for
// [dwDirection] -- (either SET or GET)
// [iKey] -- index into the regdb (which formatetc)
//
// Requires:
//
// Returns:
//
// Signals:
//
// Modifies:
//
// Derivation:
//
// Algorithm:
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port
//
// Notes:
//
//--------------------------------------------------------------------------
#pragma SEG(CEnumFmt10_ctor)
CEnumFmt10::CEnumFmt10
(LPOLESTR szClsid,
DWORD dwDirection,
DWORD iKey)
: CEnumFmt (szClsid, dwDirection, iKey)
{
VDATEHEAP();
m_rgFmt = NULL;
}
//+-------------------------------------------------------------------------
//
// Function: CreateEnumFormatEtc (static)
//
// Synopsis: Creates a 2.0 formatetc enumerator object
//
// Effects:
//
// Arguments: [clsid] -- the class ID to look for
// [dwDirection] -- the formatetc direction (SET or GET)
// [ppenum] -- where to put the enumerator
//
// Requires:
//
// Returns: HRESULT
//
// Signals:
//
// Modifies:
//
// Algorithm: Checks to make sure that the data exists in the reg db
// and then allocates an enumerator object
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port
//
// Notes:
//
//--------------------------------------------------------------------------
#pragma SEG(CreateEnumFormatEtc)
static INTERNAL CreateEnumFormatEtc
(REFCLSID clsid,
DWORD dwDirection,
LPENUMFORMATETC FAR* ppenum)
{
VDATEHEAP();
OLECHAR szKey[MAX_STR];
LPOLESTR szClsid = NULL;
HKEY hkey = NULL;
HKEY hkeyFmts = NULL;
RetErr (StringFromCLSID (clsid, &szClsid));
_xstrcpy (szKey, szClsidRoot);
_xstrcat (szKey, szClsid);
if (ERROR_SUCCESS != RegOpenKey (HKEY_CLASSES_ROOT, szKey, &hkey))
{
PubMemFree(szClsid);
return ReportResult(0, REGDB_E_CLASSNOTREG, 0, 0);
}
if (ERROR_SUCCESS != RegOpenKey (hkey, (LPOLESTR) DATA_FORMATS,
&hkeyFmts))
{
CLOSE (hkey);
PubMemFree(szClsid);
return ReportResult(0, REGDB_E_KEYMISSING, 0, 0);
}
CLOSE (hkeyFmts);
CLOSE (hkey);
*ppenum = new FAR CEnumFmt (szClsid, dwDirection);
// hook the new interface
CALLHOOKOBJECTCREATE(S_OK,CLSID_NULL,IID_IEnumFORMATETC,
(IUnknown **)ppenum);
// do not delete szClsid. Will be deleted on Release
return *ppenum ? NOERROR : ResultFromScode (E_OUTOFMEMORY);
}
//+-------------------------------------------------------------------------
//
// Function: OleRegEnumFormatEtc
//
// Synopsis: Creates a reg db formatetc enumerator
//
// Effects:
//
// Arguments: [clsid] -- the class ID we're interested in
// [dwDirection] -- either GET or SET (for the formatetc and
// IDataObject->[Get|Set]Data)
// [ppenum] -- where to put the enumerator
//
// Requires:
//
// Returns: HRESULT
//
// Signals:
//
// Modifies:
//
// Algorithm: Creates either an OLE2 enumerator or an OLE1 enumerator
//
// History: dd-mmm-yy Author Comment
// 29-Nov-93 ChrisWe allow more than one DATADIR_* flag at a
// time
// 01-Dec-93 alexgo 32bit port
//
// Notes:
//
//--------------------------------------------------------------------------
#pragma SEG(OleRegEnumFormatEtc)
STDAPI OleRegEnumFormatEtc
(REFCLSID clsid,
DWORD dwDirection,
LPENUMFORMATETC FAR* ppenum)
{
OLETRACEIN((API_OleRegEnumFormatEtc, PARAMFMT("clsid= %I, dwDirection= %x, ppenum= %p"),
&clsid, dwDirection, ppenum));
VDATEHEAP();
HRESULT hr;
VDATEPTROUT_LABEL(ppenum, LPENUMFORMATETC, errRtn, hr);
*ppenum = NULL;
// check that dwDirection only has valid values
if (dwDirection & ~(DATADIR_GET | DATADIR_SET))
{
hr = ResultFromScode(E_INVALIDARG);
goto errRtn;
}
if (CoIsOle1Class (clsid))
{
hr = CreateEnumFormatEtc10 (clsid, dwDirection, ppenum);
}
else
{
hr = CreateEnumFormatEtc (clsid, dwDirection, ppenum);
}
errRtn:
OLETRACEOUT((API_OleRegEnumFormatEtc, hr));
return hr;
}
//+-------------------------------------------------------------------------
//
// Member: CEnumFmt::OpenHKey
//
// Synopsis: Opens a the regdb and returns a handle to the formatetc's
//
// Effects:
//
// Arguments: [phkey] -- where to put the regdb handle
//
// Requires:
//
// Returns: NOERROR, REGDB_E_KEYMISSING
//
// Signals:
//
// Modifies:
//
// Derivation:
//
// Algorithm:
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port
//
// Notes:
//
//--------------------------------------------------------------------------
#pragma SEG(CEnumFmt_OpenHKey)
STDMETHODIMP CEnumFmt::OpenHKey
(HKEY FAR* phkey)
{
VDATEHEAP();
VDATEPTRIN (phkey, HKEY);
OLECHAR szBuf [MAX_STR];
_xstrcpy (szBuf, szClsidRoot);
_xstrcat (szBuf, m_szClsid);
_xstrcat (szBuf, OLESTR("\\"));
_xstrcat (szBuf, DATA_FORMATS);
return ERROR_SUCCESS==RegOpenKey (HKEY_CLASSES_ROOT, szBuf, phkey)
? NOERROR
: ResultFromScode(REGDB_E_KEYMISSING);
}
//+-------------------------------------------------------------------------
//
// Member: CEnumFmt::Reset
//
// Synopsis: Resets the enumerator
//
// Effects:
//
// Arguments: void
//
// Requires:
//
// Returns: NOERROR
//
// Signals:
//
// Modifies:
//
// Derivation: IEnumFormatEtc
//
// Algorithm:
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port
//
// Notes:
//
//--------------------------------------------------------------------------
#pragma SEG(CEnumFmt_Reset)
STDMETHODIMP CEnumFmt::Reset (void)
{
VDATEHEAP();
m_iKey = 0;
return NOERROR;
}
//+-------------------------------------------------------------------------
//
// Member: CEnumFmt::Skip
//
// Synopsis: Skips the next [c] formatetc's
//
// Effects:
//
// Arguments: [c] -- number of formatetc's to skip
//
// Requires:
//
// Returns: HRESULT
//
// Signals:
//
// Modifies:
//
// Derivation: IEnumFormatEtc
//
// Algorithm: just calls Next [c] times :)
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port
//
// Notes:
//
//--------------------------------------------------------------------------
#pragma SEG(CEnumFmt_Skip)
STDMETHODIMP CEnumFmt::Skip
(ULONG c)
{
VDATEHEAP();
ULONG i=0;
FORMATETC formatetc;
HRESULT hresult = NOERROR;
while (i++ < c)
{
// There will not be a target device to free
ErrRtnH (Next (1, &formatetc, NULL));
}
errRtn:
return hresult;
}
//+-------------------------------------------------------------------------
//
// Member: CEnumFmt::Next
//
// Synopsis: Gets the next formatetc from teh regdb
//
// Effects:
//
// Arguments: [cfmt] -- the number of formatetc's to return
// [rgfmt] -- where to put the formatetc's
// [pcfmtFetched] -- where to put how many formatetc's were
// actually fetched
//
// Requires:
//
// Returns: HRESULT
//
// Signals:
//
// Modifies:
//
// Derivation: IEnumFORMATETC
//
// Algorithm: In the reg db, apps may compactly specify that a formatetc
// applies to multiple aspects by simply using the numeric
// value of the aspects or'ed together. Since our enumerator
// should give one formatetc *per* aspect, if multiple aspects
// are specified, then we cache the formatetc and use it the
// next time a formatetc is requested (via next or [cfmt] > 1)
// That's what the m_cache stuff is all about.
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port
//
// Notes:
//
//--------------------------------------------------------------------------
#pragma SEG(CEnumFmt_Next)
STDMETHODIMP CEnumFmt::Next
(ULONG cfmt,
FORMATETC FAR * rgfmt,
ULONG FAR* pcfmtFetched)
{
VDATEHEAP();
OLECHAR szBuf [MAX_STR];
OLECHAR szKey [80];
DWORD dwAspects;
LPOLESTR psz;
LONG cb = 0;
HKEY hkey = NULL;
ULONG ifmt = 0; // number successfully fetched so far
LPOLESTR szFmt = NULL;
LPOLESTR szAspects = NULL;
LPOLESTR szMedia = NULL;
LPOLESTR szDirection = NULL;
HRESULT hresult = NOERROR;
RetErr (OpenHKey (&hkey));
while (ifmt < cfmt)
{
// use the cached value (multiple aspects specified for the
// formatetc.
if (m_cache.fUseMe)
{
rgfmt[ifmt] = m_cache.fmt;
rgfmt[ifmt].dwAspect = UtRightmostBit (
m_cache.dwAspects);
m_cache.dwAspects = UtRemoveRightmostBit (
m_cache.dwAspects);
if (0==m_cache.dwAspects)
m_cache.fUseMe = FALSE;
ifmt++;
}
else
{
wsprintf (szKey, OLESTR("%d"), m_iKey++);
cb = MAX_STR;
if (ERROR_SUCCESS == RegQueryValue (hkey, szKey,
szBuf, &cb))
{
rgfmt[ifmt].ptd = NULL;
rgfmt[ifmt].lindex = DEF_LINDEX;
psz = szBuf;
ErrZS(*psz, REGDB_E_INVALIDVALUE);
szFmt = psz;
while (*psz && *psz != DELIM[0])
psz++;
ErrZS(*psz, REGDB_E_INVALIDVALUE);
*psz++ = OLESTR('\0');
szAspects = psz;
while (*psz && *psz != DELIM[0])
psz++;
ErrZS(*psz, REGDB_E_INVALIDVALUE);
*psz++ = OLESTR('\0');
szMedia = psz;
while (*psz && *psz != DELIM[0])
psz++;
ErrZS(*psz, REGDB_E_INVALIDVALUE);
*psz++ = OLESTR('\0');
szDirection = psz;
// Format
rgfmt [ifmt].cfFormat = _xisdigit (szFmt[0])
? (CLIPFORMAT) Atol (szFmt)
: RegisterClipboardFormat (szFmt);
// Aspect
dwAspects = Atol (szAspects);
ErrZS (dwAspects, REGDB_E_INVALIDVALUE);
if (UtIsSingleBit (dwAspects))
{
rgfmt[ifmt].dwAspect = Atol(szAspects);
}
else
{
rgfmt[ifmt].dwAspect =
UtRightmostBit(dwAspects);
m_cache.fmt = rgfmt[ifmt];
m_cache.dwAspects =
UtRemoveRightmostBit(
dwAspects) & 0xf;
if (m_cache.dwAspects != 0)
{
m_cache.fUseMe = TRUE;
}
}
// Media
rgfmt[ifmt].tymed = Atol (szMedia);
if (m_cache.fUseMe)
{
m_cache.fmt.tymed = rgfmt[ifmt].tymed;
}
// Direction
if ( (Atol (szDirection) & m_dwDirection) ==
m_dwDirection)
{
// This format supports the direction
// we are interested in
ifmt++;
}
else
{
m_cache.fUseMe = FALSE;
}
}
else
{
break; // no more entries
}
}// else
}// while
if (pcfmtFetched)
{
*pcfmtFetched = ifmt;
}
errRtn:
CLOSE (hkey);
if (NOERROR==hresult)
{
return ifmt==cfmt ? NOERROR : ResultFromScode (S_FALSE);
}
else
{
if (pcfmtFetched)
{
*pcfmtFetched = 0;
}
m_cache.fUseMe = FALSE;
return hresult;
}
}
//+-------------------------------------------------------------------------
//
// Member: CEnumFmt::Clone
//
// Synopsis: clones the enumerator
//
// Effects:
//
// Arguments: [ppenum] -- where to put the cloned enumerator
//
// Requires:
//
// Returns: NOERROR, E_OUTOFMEMORY
//
// Signals:
//
// Modifies:
//
// Derivation: IEnumFORMATETC
//
// Algorithm:
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port
//
// Notes:
//
//--------------------------------------------------------------------------
#pragma SEG(CEnumFmt_Clone)
STDMETHODIMP CEnumFmt::Clone
(LPENUMFORMATETC FAR* ppenum)
{
VDATEHEAP();
VDATEPTRIN (ppenum, LPENUMFORMATETC);
*ppenum = new FAR CEnumFmt (UtDupString(m_szClsid), m_dwDirection,
m_iKey);
return *ppenum ? NOERROR : ResultFromScode (E_OUTOFMEMORY);
}
//+-------------------------------------------------------------------------
//
// Member: CEnumFmt::QueryInterface
//
// Synopsis: returns supported interfaces
//
// Effects:
//
// Arguments: [iid] -- the requested interface ID
// [ppv] -- where to put the interface pointer
//
// Requires:
//
// Returns:
//
// Signals:
//
// Modifies:
//
// Derivation: IEnumFormatEtc
//
// Algorithm:
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port
//
// Notes:
//
//--------------------------------------------------------------------------
#pragma SEG(CEnumFmt_QueryInterface)
STDMETHODIMP CEnumFmt::QueryInterface(REFIID iid, LPVOID FAR* ppv)
{
VDATEHEAP();
M_PROLOG(this);
if (IsEqualIID(iid, IID_IUnknown) ||
IsEqualIID(iid, IID_IEnumFORMATETC))
{
*ppv = this;
AddRef();
return NOERROR;
}
else
{
*ppv = NULL;
return ResultFromScode (E_NOINTERFACE);
}
}
//+-------------------------------------------------------------------------
//
// Member: CEnumFmt::AddRef
//
// Synopsis: Increments the reference count
//
// Effects:
//
// Arguments: void
//
// Requires:
//
// Returns: ULONG -- the new reference count
//
// Signals:
//
// Modifies:
//
// Derivation: IEnumFORMATETC
//
// Algorithm:
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port
//
// Notes:
//
//--------------------------------------------------------------------------
#pragma SEG(CEnumFmt_AddRef)
STDMETHODIMP_(ULONG) CEnumFmt::AddRef(void)
{
VDATEHEAP();
M_PROLOG(this);
return ++m_cRef;
}
//+-------------------------------------------------------------------------
//
// Member: CEnumFmt::Release
//
// Synopsis: decrements the reference count
//
// Effects: may delete this object
//
// Arguments: void
//
// Requires:
//
// Returns: ULONG -- the new reference count
//
// Signals:
//
// Modifies:
//
// Derivation: IEnumFORMATETC
//
// Algorithm:
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port
//
// Notes:
//
//--------------------------------------------------------------------------
#pragma SEG(CEnumFmt_Release)
STDMETHODIMP_(ULONG) CEnumFmt::Release(void)
{
VDATEHEAP();
M_PROLOG(this);
if (--m_cRef == 0)
{
PubMemFree(m_szClsid);
delete this;
return 0;
}
return m_cRef;
}
//+-------------------------------------------------------------------------
//
// Member: CEnumFmt::Dump, public (_DEBUG only)
//
// Synopsis: return a string containing the contents of the data members
//
// Effects:
//
// Arguments: [ppszDump] - an out pointer to a null terminated character array
// [ulFlag] - flag determining prefix of all newlines of the
// out character array (default is 0 - no prefix)
// [nIndentLevel] - will add a indent prefix after the other prefix
// for ALL newlines (including those with no prefix)
//
// Requires:
//
// Returns: HRESULT
//
// Signals:
//
// Modifies: [ppszDump] - argument
//
// Derivation:
//
// Algorithm: use dbgstream to create a string containing information on the
// content of data structures
//
// History: dd-mmm-yy Author Comment
// 01-Feb-95 t-ScottH author
//
// Notes:
//
//--------------------------------------------------------------------------
#ifdef _DEBUG
HRESULT CEnumFmt::Dump(char **ppszDump, ULONG ulFlag, int nIndentLevel)
{
int i;
char *pszPrefix;
char *pszFMTCACHE;
dbgstream dstrPrefix;
dbgstream dstrDump;
// determine prefix of newlines
if ( ulFlag & DEB_VERBOSE )
{
dstrPrefix << this << " _VB ";
}
// determine indentation prefix for all newlines
for (i = 0; i < nIndentLevel; i++)
{
dstrPrefix << DUMPTAB;
}
pszPrefix = dstrPrefix.str();
// put data members in stream
dstrDump << pszPrefix << "No. of References = " << m_cRef << endl;
dstrDump << pszPrefix << "CLSID string = " << m_szClsid << endl;
dstrDump << pszPrefix << "Direction = " << m_dwDirection<< endl;
dstrDump << pszPrefix << "Current Key Index = " << m_iKey << endl;
pszFMTCACHE = DumpFMTCACHE(&m_cache, ulFlag, nIndentLevel + 1);
dstrDump << pszPrefix << "FMTCACHE: " << endl;
dstrDump << pszFMTCACHE;
CoTaskMemFree(pszFMTCACHE);
// cleanup and provide pointer to character array
*ppszDump = dstrDump.str();
if (*ppszDump == NULL)
{
*ppszDump = UtDupStringA(szDumpErrorMessage);
}
CoTaskMemFree(pszPrefix);
return NOERROR;
}
#endif // _DEBUG
//+-------------------------------------------------------------------------
//
// Function: DumpCEnumFmt, public (_DEBUG only)
//
// Synopsis: calls the CEnumFmt::Dump method, takes care of errors and
// returns the zero terminated string
//
// Effects:
//
// Arguments: [pEF] - pointer to CEnumFmt
// [ulFlag] - flag determining prefix of all newlines of the
// out character array (default is 0 - no prefix)
// [nIndentLevel] - will add a indent prefix after the other prefix
// for ALL newlines (including those with no prefix)
//
// Requires:
//
// Returns: character array of structure dump or error (null terminated)
//
// Signals:
//
// Modifies:
//
// Algorithm:
//
// History: dd-mmm-yy Author Comment
// 01-Feb-95 t-ScottH author
//
// Notes:
//
//--------------------------------------------------------------------------
#ifdef _DEBUG
char *DumpCEnumFmt(CEnumFmt *pEF, ULONG ulFlag, int nIndentLevel)
{
HRESULT hresult;
char *pszDump;
if (pEF == NULL)
{
return UtDupStringA(szDumpBadPtr);
}
hresult = pEF->Dump(&pszDump, ulFlag, nIndentLevel);
if (hresult != NOERROR)
{
CoTaskMemFree(pszDump);
return DumpHRESULT(hresult);
}
return pszDump;
}
#endif // _DEBUG
/////////////////////////////////////////
// OLE 1.0 stuff
//+-------------------------------------------------------------------------
//
// Function: CreateEnumFormatEtc10
//
// Synopsis: Creates a 1.0 format enumerator
//
// Effects:
//
// Arguments: [clsid] -- the class id we're interested in
// [dwDirection] -- either GET or SET
// [ppenum] -- where to put the enumerator
//
// Requires:
//
// Returns: HRESULT
//
// Signals:
//
// Modifies:
//
// Algorithm: checks to see if the info's in the reg db, then creates
// and initializes a 1.0 enumerator object. (note that there
// does not *have* to be any info in the regdb, we can
// InitFromScratch)
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port
//
// Notes:
//
//--------------------------------------------------------------------------
#pragma SEG(CreateEnumFormatEtc10)
static INTERNAL CreateEnumFormatEtc10
(REFCLSID clsid,
DWORD dwDirection,
LPENUMFORMATETC FAR* ppenum)
{
VDATEHEAP();
LPOLESTR szClsid = NULL;
HKEY hkey = NULL;
HKEY hkeyFmts = NULL;
HRESULT hresult = NOERROR;
BOOL fInReg;
CEnumFmt10 FAR* penum;
VDATEPTROUT (ppenum, LPENUMFORMATETC);
*ppenum = NULL;
RetErr (ProgIDFromCLSID (clsid, &szClsid));
if (ERROR_SUCCESS != RegOpenKey (HKEY_CLASSES_ROOT, szClsid, &hkey))
{
PubMemFree(szClsid);
return ReportResult(0, REGDB_E_CLASSNOTREG, 0, 0);
}
// Does this server have "Request/SetDataFormats" keys?
fInReg = (ERROR_SUCCESS == RegOpenKey (hkey,
OLESTR("Protocol\\StdFileEditing\\RequestDataFormats"),
&hkeyFmts));
CLOSE(hkeyFmts);
penum = new FAR CEnumFmt10 (szClsid, dwDirection);
if (NULL==penum)
{
ErrRtnH (ResultFromScode (E_OUTOFMEMORY));
}
if (fInReg)
{
penum->InitFromRegDb (hkey);
}
else
{
penum->InitFromScratch ();
}
errRtn:
CLOSE (hkey);
if (hresult == NOERROR)
{
*ppenum = penum;
CALLHOOKOBJECTCREATE(S_OK,CLSID_NULL,IID_IEnumFORMATETC,
(IUnknown **)ppenum);
}
else
{
PubMemFree(szClsid);
// If no error, szClsid will be deleted on Release
}
return hresult;
}
//+-------------------------------------------------------------------------
//
// Member: CEnumFmt10::Next
//
// Synopsis: Gets the next 1.0 format
//
// Effects:
//
// Arguments: [cfmt] -- the number of formatetc's to get
// [rgfmt] -- where to put the formatetc's
// [pcfmtFetched] -- where to put the num of formatetc's fetched
//
// Requires:
//
// Returns: HRESULT
//
// Signals:
//
// Modifies:
//
// Derivation: IEnumFORMATETC
//
// Algorithm: Ole1.0 formats are retrieved when the enumerator object
// is created, so we just return ones from our internal array
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port
//
// Notes:
//
//--------------------------------------------------------------------------
#pragma SEG(CEnumFmt10_Next)
STDMETHODIMP CEnumFmt10::Next
(ULONG cfmt,
FORMATETC FAR * rgfmt,
ULONG FAR* pcfmtFetched)
{
VDATEHEAP();
ULONG ifmt = 0; // number successfully fetched so far
while (ifmt < cfmt
&& m_rgFmt != NULL
&& m_rgFmt[m_iKey].cf != 0)
{
if ( (m_rgFmt[m_iKey].dw & m_dwDirection) == m_dwDirection)
{
// This format supports the direction we are
// interested in
rgfmt [ifmt].cfFormat = m_rgFmt[m_iKey].cf;
rgfmt [ifmt].ptd = NULL;
rgfmt [ifmt].lindex = DEF_LINDEX;
rgfmt [ifmt].tymed =
UtFormatToTymed(m_rgFmt[m_iKey].cf);
rgfmt [ifmt].dwAspect = DVASPECT_CONTENT;
ifmt++;
}
m_iKey++;
}
if (pcfmtFetched)
*pcfmtFetched = ifmt;
return ifmt==cfmt ? NOERROR : ResultFromScode (S_FALSE);
}
//+-------------------------------------------------------------------------
//
// Function: Index (static)
//
// Synopsis: finds the index of the given clipformat in the format
// array
//
// Effects:
//
// Arguments: [rgFmt] -- the clipformat array
// [cf] -- the clipformat to look for
// [iMax] -- size of the array
// [pi] -- where to put the index
//
// Requires:
//
// Returns: TRUE if found, FALSE otherwise
//
// Signals:
//
// Modifies:
//
// Algorithm:
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port
//
// Notes:
//
//--------------------------------------------------------------------------
#pragma SEG(Index)
static INTERNAL_(BOOL) Index
(FMT FAR * rgFmt,
CLIPFORMAT cf, // format to search for
size_t iMax, // size of array
size_t FAR* pi) // out parm, index of found format
{
VDATEHEAP();
for (size_t i=0; i< iMax; i++)
{
if (rgFmt[i].cf==cf)
{
*pi = i;
return TRUE;
}
}
return FALSE;
}
//+-------------------------------------------------------------------------
//
// Function: String2Clipformat (static)
//
// Synopsis: Converts a string to a clipboard format number (and then
// registers the format)
//
// Effects:
//
// Arguments: [sz] -- the string to convert
//
// Requires:
//
// Returns: CLIPFORMAT
//
// Signals:
//
// Modifies:
//
// Algorithm:
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port
//
// Notes:
//
//--------------------------------------------------------------------------
#pragma SEG(String2Clipformat)
static INTERNAL_(CLIPFORMAT) String2Clipformat
(LPOLESTR sz)
{
VDATEHEAP();
if (_xstrlen(sz) >= 3 &&
0==memcmp (sz, OLESTR("CF_"), 3*sizeof(sz[0])))
{
#define macro(cf) if (0==_xstricmp (sz, OLESTR(#cf))) return cf
macro (CF_TEXT);
macro (CF_BITMAP);
macro (CF_METAFILEPICT);
macro (CF_SYLK);
macro (CF_DIF);
macro (CF_TIFF);
macro (CF_OEMTEXT);
macro (CF_DIB);
macro (CF_PALETTE);
macro (CF_PENDATA);
macro (CF_RIFF);
macro (CF_WAVE);
macro (CF_OWNERDISPLAY);
macro (CF_DSPTEXT);
macro (CF_DSPBITMAP);
macro (CF_DSPMETAFILEPICT);
#undef macro
}
return (CLIPFORMAT) RegisterClipboardFormat (sz);
}
//+-------------------------------------------------------------------------
//
// Member: CEnumFmt10::InitFromRegDb (internal)
//
// Synopsis: Initializes the 1.0 enumerator from the reg db (loads
// all the available formats)
//
// Effects:
//
// Arguments: [hkey] -- handle to the regdb
//
// Requires:
//
// Returns: HRESULT
//
// Signals:
//
// Modifies:
//
// Derivation:
//
// Algorithm:
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port
//
// Notes:
// Original comment:
//
// Fill m_rgFmt with FMTs which map clipformats to Get/Set flags
//
//--------------------------------------------------------------------------
#pragma SEG(CEnumFmt10_InitFromRegDb)
STDMETHODIMP CEnumFmt10::InitFromRegDb
(HKEY hkey) // CLSID key
{
VDATEHEAP();
LPOLESTR pch;
LPOLESTR szReq = (LPOLESTR)PubMemAlloc(512 * sizeof(OLECHAR));
LPOLESTR szSet = (LPOLESTR)PubMemAlloc(512 * sizeof(OLECHAR));
LPOLESTR szFmt;
BOOL bMore;
size_t cFmts = 0;
size_t iFmt = 0;
size_t iFmtPrev;
CLIPFORMAT cf;
LONG cb;
HRESULT hresult = NOERROR;
if( !szReq )
{
// assumes delete 0 works (if szSet == 0)
PubMemFree(szSet);
return ResultFromScode (E_OUTOFMEMORY);
}
if( !szSet )
{
PubMemFree(szReq);
return ResultFromScode (E_OUTOFMEMORY);
}
cb = 512;
if (ERROR_SUCCESS == RegQueryValue (hkey,
OLESTR("Protocol\\StdFileEditing\\RequestDataFormats"),
szReq, &cb))
{
cFmts = 1; // no commas means one format
for (pch = szReq; *pch; pch++)
{
if (*pch==OLESTR(','))
cFmts++;
}
}
// the size of szSet
cb = 512;
if (ERROR_SUCCESS == RegQueryValue (hkey,
OLESTR("Protocol\\StdFileEditing\\SetDataFormats"),
szSet, &cb))
{
cFmts++; // no commas means one format
for (pch = szSet; *pch; pch++)
{
if (*pch==OLESTR(','))
cFmts++;
}
}
if (cFmts==0)
{
Assert(0);
ErrRtnH (ReportResult(0, REGDB_E_KEYMISSING, 0, 0));
}
m_rgFmt = (FMT FAR *)PrivMemAlloc(sizeof(FMT)*(cFmts+1));
if (m_rgFmt==NULL)
{
ErrRtnH (ResultFromScode (E_OUTOFMEMORY));
}
pch = szReq;
bMore = (*pch != 0);
while (bMore)
{
while (*pch == OLESTR(' '))
pch++;
szFmt = pch;
while (*pch && *pch != DELIM[0])
pch++;
if (*pch == 0)
bMore = FALSE;
*pch++ = OLESTR('\0');
m_rgFmt[iFmt].cf = String2Clipformat(szFmt);
m_rgFmt[iFmt++].dw = DATADIR_GET;
}
pch = szSet;
bMore = (*pch != 0);
while (bMore)
{
while (*pch == OLESTR(' '))
pch++;
szFmt = pch;
while (*pch && *pch != DELIM[0])
pch++;
if (*pch == 0)
bMore = FALSE;
*pch++ = OLESTR('\0');
cf = String2Clipformat(szFmt);
if (Index (m_rgFmt, cf, iFmt, &iFmtPrev))
{
// This format can also be gotten
m_rgFmt[iFmtPrev].dw |= DATADIR_SET;
}
else
{
m_rgFmt[iFmt].cf = cf;
m_rgFmt[iFmt++].dw = DATADIR_SET;
}
}
// Terminator
m_rgFmt[iFmt].cf = 0;
m_cFmt = iFmt;
errRtn:
PubMemFree(szReq);
PubMemFree(szSet);
return hresult;
}
//+-------------------------------------------------------------------------
//
// Member: CEnumFmt10::InitFromScratch
//
// Synopsis: Initialize the enumerated formats for a 1.0 server that
// does not specify any Request/SetData formats.
//
// Effects:
//
// Arguments: void
//
// Requires:
//
// Returns: HRESULT (NOERROR, E_OUTOFMEMORY)
//
// Signals:
//
// Modifies:
//
// Derivation:
//
// Algorithm: sets up Metafiles and "Native" formats
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port
//
// Notes:
// The spec says that what EnumFormatEtc returns is not a
// guarantee of support.
//
//--------------------------------------------------------------------------
#pragma SEG(CEnumFmt10_InitFromScratch)
STDMETHODIMP CEnumFmt10::InitFromScratch
(void)
{
VDATEHEAP();
m_rgFmt = (FMT FAR *)PrivMemAlloc(10 * sizeof(FMT));
if( !m_rgFmt )
{
return ResultFromScode (E_OUTOFMEMORY);
}
m_rgFmt[0].cf = CF_METAFILEPICT;
m_rgFmt[0].dw = DATADIR_GET;
m_rgFmt[1].cf = (CLIPFORMAT) RegisterClipboardFormat (OLESTR("Native"));
m_rgFmt[1].dw = DATADIR_GET | DATADIR_SET;
m_rgFmt[2].cf = 0; // Terminator
m_cFmt = 2;
return NOERROR;
}
//+-------------------------------------------------------------------------
//
// Member: CEnumFmt10::Skip
//
// Synopsis: skips to over [c] formats
//
// Effects:
//
// Arguments: [c] -- the number of formats to skip
//
// Requires:
//
// Returns: HRESULT
//
// Signals:
//
// Modifies:
//
// Derivation: IEnumFORMATETC
//
// Algorithm:
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port
//
// Notes: This is re-implemented so we get the right implementation
// of Next (because C++ is evil OOP).
// REVIEW32: we can probably get rid of this by clever use
// of virtual (but must make sure the vtables don't get hosed).
//
//--------------------------------------------------------------------------
#pragma SEG(CEnumFmt10_Skip)
STDMETHODIMP CEnumFmt10::Skip
(ULONG c)
{
VDATEHEAP();
ULONG i=0;
FORMATETC formatetc;
HRESULT hresult = NOERROR;
while (i++ < c)
{
// There will not be a target device to free
ErrRtnH (Next (1, &formatetc, NULL));
}
errRtn:
return hresult;
}
//+-------------------------------------------------------------------------
//
// Member: CEnumFmt10::Clone
//
// Synopsis: duplicates the 1.0 format enumerator
//
// Effects:
//
// Arguments: [ppenum] -- where to put the cloned enumerator
//
// Requires:
//
// Returns: HRESULT
//
// Signals:
//
// Modifies:
//
// Derivation: IEnumFORMATETC
//
// Algorithm:
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port, fixed memory leak
//
// Notes:
//
//--------------------------------------------------------------------------
#pragma SEG(CEnumFmt10_Clone)
STDMETHODIMP CEnumFmt10::Clone
(LPENUMFORMATETC FAR* ppenum)
{
VDATEHEAP();
VDATEPTROUT (ppenum, LPENUMFORMATETC);
CEnumFmt10 FAR* penum;
penum = new FAR CEnumFmt10 (UtDupString(m_szClsid), m_dwDirection,
m_iKey);
if (NULL==penum)
{
return ResultFromScode (E_OUTOFMEMORY);
}
penum->m_cFmt = m_cFmt;
penum->m_rgFmt = (FMT FAR *)PrivMemAlloc((m_cFmt+1) * sizeof(FMT));
if (NULL==penum->m_rgFmt)
{
PubMemFree(penum);
return ResultFromScode (E_OUTOFMEMORY);
}
_xmemcpy (penum->m_rgFmt, m_rgFmt, (m_cFmt+1)*sizeof(FMT));
Assert (penum->m_rgFmt[penum->m_cFmt].cf==0);
*ppenum = penum;
return NOERROR;
}
//+-------------------------------------------------------------------------
//
// Member: CEnumFmt10::Release
//
// Synopsis: decrements the reference count
//
// Effects: may delete the object
//
// Arguments: void
//
// Requires:
//
// Returns: ULONG -- the new reference count
//
// Signals:
//
// Modifies:
//
// Derivation: IEnumFORMATETC
//
// Algorithm:
//
// History: dd-mmm-yy Author Comment
// 01-Dec-93 alexgo 32bit port
//
// Notes:
//
//--------------------------------------------------------------------------
#pragma SEG(CEnumFmt10_Release)
STDMETHODIMP_(ULONG) CEnumFmt10::Release(void)
{
VDATEHEAP();
M_PROLOG(this);
if (--m_cRef == 0)
{
PubMemFree(m_szClsid);
PrivMemFree(m_rgFmt);
delete this;
return 0;
}
return m_cRef;
}
//+-------------------------------------------------------------------------
//
// Member: CEnumFmt10::Dump, public (_DEBUG only)
//
// Synopsis: return a string containing the contents of the data members
//
// Effects:
//
// Arguments: [ppszDump] - an out pointer to a null terminated character array
// [ulFlag] - flag determining prefix of all newlines of the
// out character array (default is 0 - no prefix)
// [nIndentLevel] - will add a indent prefix after the other prefix
// for ALL newlines (including those with no prefix)
//
// Requires:
//
// Returns: HRESULT
//
// Signals:
//
// Modifies: [ppszDump] - argument
//
// Derivation:
//
// Algorithm: use dbgstream to create a string containing information on the
// content of data structures
//
// History: dd-mmm-yy Author Comment
// 01-Feb-95 t-ScottH author
//
// Notes:
//
//--------------------------------------------------------------------------
#ifdef _DEBUG
HRESULT CEnumFmt10::Dump(char **ppszDump, ULONG ulFlag, int nIndentLevel)
{
int i;
unsigned int ui;
char *pszPrefix;
char *pszCEnumFmt;
char *pszFMT;
dbgstream dstrPrefix;
dbgstream dstrDump;
// determine prefix of newlines
if ( ulFlag & DEB_VERBOSE )
{
dstrPrefix << this << " _VB ";
}
// determine indentation prefix for all newlines
for (i = 0; i < nIndentLevel; i++)
{
dstrPrefix << DUMPTAB;
}
pszPrefix = dstrPrefix.str();
// put data members in stream
pszCEnumFmt = DumpCEnumFmt((CEnumFmt *)this, ulFlag, nIndentLevel + 1);
dstrDump << pszPrefix << "CEnumFmt: " << endl;
dstrDump << pszCEnumFmt;
CoTaskMemFree(pszCEnumFmt);
dstrDump << pszPrefix << "No. in FMT array = " << (UINT) m_cFmt << endl;
for (ui = 0; ui < m_cFmt; ui++)
{
pszFMT = DumpFMT(&m_rgFmt[ui], ulFlag, nIndentLevel + 1);
dstrDump << pszPrefix << "FMT [" << ui << "]: " << endl;
dstrDump << pszFMT;
CoTaskMemFree(pszFMT);
}
// cleanup and provide pointer to character array
*ppszDump = dstrDump.str();
if (*ppszDump == NULL)
{
*ppszDump = UtDupStringA(szDumpErrorMessage);
}
CoTaskMemFree(pszPrefix);
return NOERROR;
}
#endif // _DEBUG
//+-------------------------------------------------------------------------
//
// Function: DumpCEnumFmt10, public (_DEBUG only)
//
// Synopsis: calls the CEnunFmt10::Dump method, takes care of errors and
// returns the zero terminated string
//
// Effects:
//
// Arguments: [pEF] - pointer to CEnumFmt10
// [ulFlag] - flag determining prefix of all newlines of the
// out character array (default is 0 - no prefix)
// [nIndentLevel] - will add a indent prefix after the other prefix
// for ALL newlines (including those with no prefix)
//
// Requires:
//
// Returns: character array of structure dump or error (null terminated)
//
// Signals:
//
// Modifies:
//
// Algorithm:
//
// History: dd-mmm-yy Author Comment
// 01-Feb-95 t-ScottH author
//
// Notes:
//
//--------------------------------------------------------------------------
#ifdef _DEBUG
char *DumpCEnumFmt10(CEnumFmt10 *pEF, ULONG ulFlag, int nIndentLevel)
{
HRESULT hresult;
char *pszDump;
if (pEF == NULL)
{
return UtDupStringA(szDumpBadPtr);
}
hresult = pEF->Dump(&pszDump, ulFlag, nIndentLevel);
if (hresult != NOERROR)
{
CoTaskMemFree(pszDump);
return DumpHRESULT(hresult);
}
return pszDump;
}
#endif // _DEBUG
//+-------------------------------------------------------------------------
//
// Function: DumpFMT, public (_DEBUG only)
//
// Synopsis: returns a string containing the contents of the data members
//
// Effects:
//
// Arguments: [pFMT] - a pointer to a FMT object
// [ulFlag] - a flag determining the prefix of all newlines of
// the out character array(default is 0 -no prefix)
// [nIndentLevel] - will add an indent prefix after the other prefix
// for all newlines(include those with no prefix)
//
// Requires:
//
// Returns: character array of structure dump or error (null terminated)
//
// Signals:
//
// Modifies:
//
// Algorithm:
//
// History: dd-mmm-yy Author Comment
// 23-Jan-95 t-ScottH author
//
// Notes:
//
//--------------------------------------------------------------------------
#ifdef _DEBUG
char *DumpFMT(FMT *pFMT, ULONG ulFlag, int nIndentLevel)
{
int i;
char *pszPrefix;
char *pszDump;
char *pszCLIPFORMAT;
dbgstream dstrPrefix;
dbgstream dstrDump;
if (pFMT == NULL)
{
return UtDupStringA(szDumpBadPtr);
}
// determine prefix
if ( ulFlag & DEB_VERBOSE )
{
dstrPrefix << pFMT << " _VB ";
}
// determine indentation prefix
for (i = 0; i < nIndentLevel; i++)
{
dstrPrefix << DUMPTAB;
}
pszPrefix = dstrPrefix.str();
// put data members in stream
pszCLIPFORMAT = DumpCLIPFORMAT(pFMT->cf);
dstrDump << pszPrefix << "Clip format = " << pszCLIPFORMAT << endl;
CoTaskMemFree(pszCLIPFORMAT);
dstrDump << pszPrefix << "Dword = " << pFMT->dw << endl;
// cleanup and provide pointer to character array
pszDump = dstrDump.str();
if (pszDump == NULL)
{
pszDump = UtDupStringA(szDumpErrorMessage);
}
CoTaskMemFree(pszPrefix);
return pszDump;
}
#endif // _DEBUG
//+-------------------------------------------------------------------------
//
// Function: DumpFMTCACHE, public (_DEBUG only)
//
// Synopsis: returns a string containing the contents of the data members
//
// Effects:
//
// Arguments: [pFMT] - a pointer to a FMTCACHE object
// [ulFlag] - a flag determining the prefix of all newlines of
// the out character array(default is 0 -no prefix)
// [nIndentLevel] - will add an indent prefix after the other prefix
// for all newlines(include those with no prefix)
//
// Requires:
//
// Returns: character array of structure dump or error (null terminated)
//
// Signals:
//
// Modifies:
//
// Algorithm:
//
// History: dd-mmm-yy Author Comment
// 23-Jan-95 t-ScottH author
//
// Notes:
//
//--------------------------------------------------------------------------
#ifdef _DEBUG
char *DumpFMTCACHE(FMTCACHE *pFMT, ULONG ulFlag, int nIndentLevel)
{
int i;
char *pszPrefix;
char *pszDump;
char *pszFORMATETC;
char *pszDVASPECT;
dbgstream dstrPrefix;
dbgstream dstrDump;
if (pFMT == NULL)
{
return UtDupStringA(szDumpBadPtr);
}
// determine prefix
if ( ulFlag & DEB_VERBOSE )
{
dstrPrefix << pFMT << " _VB ";
}
// determine indentation prefix
for (i = 0; i < nIndentLevel; i++)
{
dstrPrefix << DUMPTAB;
}
pszPrefix = dstrPrefix.str();
// put data members in stream
pszFORMATETC = DumpFORMATETC(&pFMT->fmt, ulFlag, nIndentLevel);
dstrDump << pszPrefix << "FORMATETC: " << endl;
dstrDump << pszFORMATETC;
CoTaskMemFree(pszFORMATETC);
pszDVASPECT = DumpDVASPECTFlags(pFMT->dwAspects);
dstrDump << pszPrefix << "Aspect flags: = " << pszDVASPECT << endl;
CoTaskMemFree(pszDVASPECT);
dstrDump << pszPrefix << "IsCacheValid? = ";
if (pFMT->fUseMe == TRUE)
{
dstrDump << "TRUE" << endl;
}
else
{
dstrDump << "FALSE" << endl;
}
// cleanup and provide pointer to character array
pszDump = dstrDump.str();
if (pszDump == NULL)
{
pszDump = UtDupStringA(szDumpErrorMessage);
}
CoTaskMemFree(pszPrefix);
return pszDump;
}
#endif // _DEBUG
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