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See the 18*cdf0e10cSrcweir * GNU Lesser General Public License version 3 for more details 19*cdf0e10cSrcweir * (a copy is included in the LICENSE file that accompanied this code). 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * You should have received a copy of the GNU Lesser General Public License 22*cdf0e10cSrcweir * version 3 along with OpenOffice.org. If not, see 23*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 24*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 25*cdf0e10cSrcweir * 26*cdf0e10cSrcweir ************************************************************************/ 27*cdf0e10cSrcweir 28*cdf0e10cSrcweir // MARKER(update_precomp.py): autogen include statement, do not remove 29*cdf0e10cSrcweir #include "precompiled_sal.hxx" 30*cdf0e10cSrcweir 31*cdf0e10cSrcweir //------------------------------------------------------------------------ 32*cdf0e10cSrcweir // includes 33*cdf0e10cSrcweir //------------------------------------------------------------------------ 34*cdf0e10cSrcweir #include <osl/diagnose.h> 35*cdf0e10cSrcweir 36*cdf0e10cSrcweir #ifndef _TWRAPPERDATAOBJECT_HXX_ 37*cdf0e10cSrcweir #include "XTDataObject.hxx" 38*cdf0e10cSrcweir #endif 39*cdf0e10cSrcweir 40*cdf0e10cSrcweir #include <windows.h> 41*cdf0e10cSrcweir #include <ole2.h> 42*cdf0e10cSrcweir #include <memory> 43*cdf0e10cSrcweir 44*cdf0e10cSrcweir //------------------------------------------------------------------------ 45*cdf0e10cSrcweir // namespace directives 46*cdf0e10cSrcweir //------------------------------------------------------------------------ 47*cdf0e10cSrcweir 48*cdf0e10cSrcweir 49*cdf0e10cSrcweir //============================================================================ 50*cdf0e10cSrcweir // OTWrapperDataObject 51*cdf0e10cSrcweir //============================================================================ 52*cdf0e10cSrcweir 53*cdf0e10cSrcweir //------------------------------------------------------------------------ 54*cdf0e10cSrcweir // ctor 55*cdf0e10cSrcweir //------------------------------------------------------------------------ 56*cdf0e10cSrcweir 57*cdf0e10cSrcweir CXTDataObject::CXTDataObject( LONG nRefCntInitVal ) : 58*cdf0e10cSrcweir m_nRefCnt( nRefCntInitVal ) 59*cdf0e10cSrcweir { 60*cdf0e10cSrcweir } 61*cdf0e10cSrcweir 62*cdf0e10cSrcweir //------------------------------------------------------------------------ 63*cdf0e10cSrcweir // dtor 64*cdf0e10cSrcweir //------------------------------------------------------------------------ 65*cdf0e10cSrcweir 66*cdf0e10cSrcweir CXTDataObject::~CXTDataObject( ) 67*cdf0e10cSrcweir { 68*cdf0e10cSrcweir } 69*cdf0e10cSrcweir 70*cdf0e10cSrcweir //------------------------------------------------------------------------ 71*cdf0e10cSrcweir // IUnknown->QueryInterface 72*cdf0e10cSrcweir //------------------------------------------------------------------------ 73*cdf0e10cSrcweir 74*cdf0e10cSrcweir STDMETHODIMP CXTDataObject::QueryInterface( REFIID iid, LPVOID* ppvObject ) 75*cdf0e10cSrcweir { 76*cdf0e10cSrcweir OSL_ASSERT( NULL != ppvObject ); 77*cdf0e10cSrcweir 78*cdf0e10cSrcweir if ( NULL == ppvObject ) 79*cdf0e10cSrcweir return E_INVALIDARG; 80*cdf0e10cSrcweir 81*cdf0e10cSrcweir HRESULT hr = E_NOINTERFACE; 82*cdf0e10cSrcweir 83*cdf0e10cSrcweir *ppvObject = NULL; 84*cdf0e10cSrcweir 85*cdf0e10cSrcweir if ( ( __uuidof( IUnknown ) == iid ) || ( __uuidof( IDataObject ) == iid ) ) 86*cdf0e10cSrcweir { 87*cdf0e10cSrcweir *ppvObject = static_cast< IUnknown* >( this ); 88*cdf0e10cSrcweir ( (LPUNKNOWN)*ppvObject )->AddRef( ); 89*cdf0e10cSrcweir hr = S_OK; 90*cdf0e10cSrcweir } 91*cdf0e10cSrcweir 92*cdf0e10cSrcweir return hr; 93*cdf0e10cSrcweir } 94*cdf0e10cSrcweir 95*cdf0e10cSrcweir //------------------------------------------------------------------------ 96*cdf0e10cSrcweir // IUnknown->AddRef 97*cdf0e10cSrcweir //------------------------------------------------------------------------ 98*cdf0e10cSrcweir 99*cdf0e10cSrcweir STDMETHODIMP_(ULONG) CXTDataObject::AddRef( ) 100*cdf0e10cSrcweir { 101*cdf0e10cSrcweir return static_cast< ULONG >( InterlockedIncrement( &m_nRefCnt ) ); 102*cdf0e10cSrcweir } 103*cdf0e10cSrcweir 104*cdf0e10cSrcweir //------------------------------------------------------------------------ 105*cdf0e10cSrcweir // IUnknown->Release 106*cdf0e10cSrcweir //------------------------------------------------------------------------ 107*cdf0e10cSrcweir 108*cdf0e10cSrcweir STDMETHODIMP_(ULONG) CXTDataObject::Release( ) 109*cdf0e10cSrcweir { 110*cdf0e10cSrcweir // we need a helper variable because it's 111*cdf0e10cSrcweir // not allowed to access a member variable 112*cdf0e10cSrcweir // after an object is destroyed 113*cdf0e10cSrcweir ULONG nRefCnt = static_cast< ULONG >( InterlockedDecrement( &m_nRefCnt ) ); 114*cdf0e10cSrcweir 115*cdf0e10cSrcweir if ( 0 == nRefCnt ) 116*cdf0e10cSrcweir { 117*cdf0e10cSrcweir delete this; 118*cdf0e10cSrcweir } 119*cdf0e10cSrcweir 120*cdf0e10cSrcweir return nRefCnt; 121*cdf0e10cSrcweir } 122*cdf0e10cSrcweir 123*cdf0e10cSrcweir //------------------------------------------------------------------------ 124*cdf0e10cSrcweir // IDataObject->GetData 125*cdf0e10cSrcweir // warning: 'goto' ahead (to easy error handling without using exceptions) 126*cdf0e10cSrcweir //------------------------------------------------------------------------ 127*cdf0e10cSrcweir 128*cdf0e10cSrcweir STDMETHODIMP CXTDataObject::GetData(LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium ) 129*cdf0e10cSrcweir { 130*cdf0e10cSrcweir OSL_ASSERT( ( NULL != pFormatetc ) && 131*cdf0e10cSrcweir ( !IsBadReadPtr( (LPVOID)pFormatetc, sizeof( FORMATETC ) ) ) ); 132*cdf0e10cSrcweir OSL_ASSERT( ( NULL != pmedium ) && 133*cdf0e10cSrcweir ( !IsBadWritePtr( (LPVOID)pmedium, sizeof( STGMEDIUM ) ) ) ); 134*cdf0e10cSrcweir 135*cdf0e10cSrcweir if ( ( NULL == pFormatetc ) || ( NULL == pmedium ) ) 136*cdf0e10cSrcweir return E_INVALIDARG; 137*cdf0e10cSrcweir 138*cdf0e10cSrcweir HRESULT hr = E_FAIL; 139*cdf0e10cSrcweir 140*cdf0e10cSrcweir if ( CF_TEXT == pFormatetc->cfFormat ) 141*cdf0e10cSrcweir { 142*cdf0e10cSrcweir char buff[] = "Hello World, How are you!"; 143*cdf0e10cSrcweir LPSTREAM lpStream; 144*cdf0e10cSrcweir 145*cdf0e10cSrcweir hr = CreateStreamOnHGlobal( NULL, FALSE, &lpStream ); 146*cdf0e10cSrcweir if ( SUCCEEDED( hr ) ) 147*cdf0e10cSrcweir { 148*cdf0e10cSrcweir hr = lpStream->Write( buff, sizeof( buff ) * sizeof( char ), NULL ); 149*cdf0e10cSrcweir if ( SUCCEEDED( hr ) ) 150*cdf0e10cSrcweir { 151*cdf0e10cSrcweir HGLOBAL hGlob; 152*cdf0e10cSrcweir 153*cdf0e10cSrcweir GetHGlobalFromStream( lpStream, &hGlob ); 154*cdf0e10cSrcweir 155*cdf0e10cSrcweir pmedium->tymed = TYMED_HGLOBAL; 156*cdf0e10cSrcweir pmedium->hGlobal = hGlob; 157*cdf0e10cSrcweir pmedium->pUnkForRelease = NULL; 158*cdf0e10cSrcweir } 159*cdf0e10cSrcweir lpStream->Release( ); 160*cdf0e10cSrcweir hr = S_OK; 161*cdf0e10cSrcweir } 162*cdf0e10cSrcweir else 163*cdf0e10cSrcweir { 164*cdf0e10cSrcweir pmedium->tymed = TYMED_NULL; 165*cdf0e10cSrcweir } 166*cdf0e10cSrcweir } 167*cdf0e10cSrcweir else if ( CF_UNICODETEXT == pFormatetc->cfFormat ) 168*cdf0e10cSrcweir { 169*cdf0e10cSrcweir WCHAR buff[] = L"Hello World, How are you!"; 170*cdf0e10cSrcweir LPSTREAM lpStream; 171*cdf0e10cSrcweir 172*cdf0e10cSrcweir hr = CreateStreamOnHGlobal( NULL, FALSE, &lpStream ); 173*cdf0e10cSrcweir if ( SUCCEEDED( hr ) ) 174*cdf0e10cSrcweir { 175*cdf0e10cSrcweir hr = lpStream->Write( buff, sizeof( buff ) * sizeof( WCHAR ), NULL ); 176*cdf0e10cSrcweir if ( SUCCEEDED( hr ) ) 177*cdf0e10cSrcweir { 178*cdf0e10cSrcweir HGLOBAL hGlob; 179*cdf0e10cSrcweir 180*cdf0e10cSrcweir GetHGlobalFromStream( lpStream, &hGlob ); 181*cdf0e10cSrcweir 182*cdf0e10cSrcweir pmedium->tymed = TYMED_HGLOBAL; 183*cdf0e10cSrcweir pmedium->hGlobal = hGlob; 184*cdf0e10cSrcweir pmedium->pUnkForRelease = NULL; 185*cdf0e10cSrcweir } 186*cdf0e10cSrcweir lpStream->Release( ); 187*cdf0e10cSrcweir hr = S_OK; 188*cdf0e10cSrcweir } 189*cdf0e10cSrcweir else 190*cdf0e10cSrcweir { 191*cdf0e10cSrcweir pmedium->tymed = TYMED_NULL; 192*cdf0e10cSrcweir } 193*cdf0e10cSrcweir } 194*cdf0e10cSrcweir 195*cdf0e10cSrcweir return hr; 196*cdf0e10cSrcweir } 197*cdf0e10cSrcweir 198*cdf0e10cSrcweir //------------------------------------------------------------------------ 199*cdf0e10cSrcweir // IDataObject->EnumFormatEtc 200*cdf0e10cSrcweir //------------------------------------------------------------------------ 201*cdf0e10cSrcweir 202*cdf0e10cSrcweir STDMETHODIMP CXTDataObject::EnumFormatEtc( DWORD dwDirection, IEnumFORMATETC** ppenumFormatetc ) 203*cdf0e10cSrcweir { 204*cdf0e10cSrcweir if ( ( NULL == ppenumFormatetc ) || ( DATADIR_SET == dwDirection ) ) 205*cdf0e10cSrcweir return E_INVALIDARG; 206*cdf0e10cSrcweir 207*cdf0e10cSrcweir *ppenumFormatetc = NULL; 208*cdf0e10cSrcweir 209*cdf0e10cSrcweir HRESULT hr = E_FAIL; 210*cdf0e10cSrcweir 211*cdf0e10cSrcweir if ( DATADIR_GET == dwDirection ) 212*cdf0e10cSrcweir { 213*cdf0e10cSrcweir *ppenumFormatetc = new CEnumFormatEtc( this ); 214*cdf0e10cSrcweir static_cast< LPUNKNOWN >( *ppenumFormatetc )->AddRef( ); 215*cdf0e10cSrcweir hr = S_OK; 216*cdf0e10cSrcweir } 217*cdf0e10cSrcweir 218*cdf0e10cSrcweir return hr; 219*cdf0e10cSrcweir } 220*cdf0e10cSrcweir 221*cdf0e10cSrcweir //------------------------------------------------------------------------ 222*cdf0e10cSrcweir // IDataObject->QueryGetData 223*cdf0e10cSrcweir //------------------------------------------------------------------------ 224*cdf0e10cSrcweir 225*cdf0e10cSrcweir STDMETHODIMP CXTDataObject::QueryGetData( LPFORMATETC pFormatetc ) 226*cdf0e10cSrcweir { 227*cdf0e10cSrcweir return E_NOTIMPL; 228*cdf0e10cSrcweir } 229*cdf0e10cSrcweir 230*cdf0e10cSrcweir //------------------------------------------------------------------------ 231*cdf0e10cSrcweir // IDataObject->GetDataHere 232*cdf0e10cSrcweir //------------------------------------------------------------------------ 233*cdf0e10cSrcweir 234*cdf0e10cSrcweir STDMETHODIMP CXTDataObject::GetDataHere( LPFORMATETC, LPSTGMEDIUM ) 235*cdf0e10cSrcweir { 236*cdf0e10cSrcweir return E_NOTIMPL; 237*cdf0e10cSrcweir } 238*cdf0e10cSrcweir 239*cdf0e10cSrcweir //------------------------------------------------------------------------ 240*cdf0e10cSrcweir // IDataObject->GetCanonicalFormatEtc 241*cdf0e10cSrcweir //------------------------------------------------------------------------ 242*cdf0e10cSrcweir 243*cdf0e10cSrcweir STDMETHODIMP CXTDataObject::GetCanonicalFormatEtc( LPFORMATETC, LPFORMATETC ) 244*cdf0e10cSrcweir { 245*cdf0e10cSrcweir return E_NOTIMPL; 246*cdf0e10cSrcweir } 247*cdf0e10cSrcweir 248*cdf0e10cSrcweir //------------------------------------------------------------------------ 249*cdf0e10cSrcweir // IDataObject->SetData 250*cdf0e10cSrcweir //------------------------------------------------------------------------ 251*cdf0e10cSrcweir 252*cdf0e10cSrcweir STDMETHODIMP CXTDataObject::SetData( LPFORMATETC, LPSTGMEDIUM, BOOL ) 253*cdf0e10cSrcweir { 254*cdf0e10cSrcweir return E_NOTIMPL; 255*cdf0e10cSrcweir } 256*cdf0e10cSrcweir 257*cdf0e10cSrcweir //------------------------------------------------------------------------ 258*cdf0e10cSrcweir // IDataObject->DAdvise 259*cdf0e10cSrcweir //------------------------------------------------------------------------ 260*cdf0e10cSrcweir 261*cdf0e10cSrcweir STDMETHODIMP CXTDataObject::DAdvise( LPFORMATETC, DWORD, LPADVISESINK, DWORD * ) 262*cdf0e10cSrcweir { 263*cdf0e10cSrcweir return E_NOTIMPL; 264*cdf0e10cSrcweir } 265*cdf0e10cSrcweir 266*cdf0e10cSrcweir //------------------------------------------------------------------------ 267*cdf0e10cSrcweir // IDataObject->DUnadvise 268*cdf0e10cSrcweir //------------------------------------------------------------------------ 269*cdf0e10cSrcweir 270*cdf0e10cSrcweir STDMETHODIMP CXTDataObject::DUnadvise( DWORD ) 271*cdf0e10cSrcweir { 272*cdf0e10cSrcweir return E_NOTIMPL; 273*cdf0e10cSrcweir } 274*cdf0e10cSrcweir 275*cdf0e10cSrcweir //------------------------------------------------------------------------ 276*cdf0e10cSrcweir // IDataObject->EnumDAdvise 277*cdf0e10cSrcweir //------------------------------------------------------------------------ 278*cdf0e10cSrcweir 279*cdf0e10cSrcweir STDMETHODIMP CXTDataObject::EnumDAdvise( LPENUMSTATDATA * ) 280*cdf0e10cSrcweir { 281*cdf0e10cSrcweir return E_NOTIMPL; 282*cdf0e10cSrcweir } 283*cdf0e10cSrcweir 284*cdf0e10cSrcweir //------------------------------------------------------------------------ 285*cdf0e10cSrcweir // for our convenience 286*cdf0e10cSrcweir //------------------------------------------------------------------------ 287*cdf0e10cSrcweir 288*cdf0e10cSrcweir CXTDataObject::operator IDataObject*( ) 289*cdf0e10cSrcweir { 290*cdf0e10cSrcweir return static_cast< IDataObject* >( this ); 291*cdf0e10cSrcweir } 292*cdf0e10cSrcweir 293*cdf0e10cSrcweir 294*cdf0e10cSrcweir //============================================================================ 295*cdf0e10cSrcweir // CEnumFormatEtc 296*cdf0e10cSrcweir //============================================================================ 297*cdf0e10cSrcweir 298*cdf0e10cSrcweir 299*cdf0e10cSrcweir //---------------------------------------------------------------------------- 300*cdf0e10cSrcweir // ctor 301*cdf0e10cSrcweir //---------------------------------------------------------------------------- 302*cdf0e10cSrcweir 303*cdf0e10cSrcweir CEnumFormatEtc::CEnumFormatEtc( LPUNKNOWN pUnkDataObj ) : 304*cdf0e10cSrcweir m_nRefCnt( 0 ), 305*cdf0e10cSrcweir m_pUnkDataObj( pUnkDataObj ), 306*cdf0e10cSrcweir m_nCurrentPos( 0 ) 307*cdf0e10cSrcweir { 308*cdf0e10cSrcweir m_cfFormats[0] = CF_UNICODETEXT; 309*cdf0e10cSrcweir m_cfFormats[1] = CF_TEXT; 310*cdf0e10cSrcweir } 311*cdf0e10cSrcweir 312*cdf0e10cSrcweir //---------------------------------------------------------------------------- 313*cdf0e10cSrcweir // dtor 314*cdf0e10cSrcweir //---------------------------------------------------------------------------- 315*cdf0e10cSrcweir 316*cdf0e10cSrcweir CEnumFormatEtc::~CEnumFormatEtc( ) 317*cdf0e10cSrcweir { 318*cdf0e10cSrcweir } 319*cdf0e10cSrcweir 320*cdf0e10cSrcweir //---------------------------------------------------------------------------- 321*cdf0e10cSrcweir // IUnknown->QueryInterface 322*cdf0e10cSrcweir //---------------------------------------------------------------------------- 323*cdf0e10cSrcweir 324*cdf0e10cSrcweir STDMETHODIMP CEnumFormatEtc::QueryInterface( REFIID iid, LPVOID* ppvObject ) 325*cdf0e10cSrcweir { 326*cdf0e10cSrcweir if ( NULL == ppvObject ) 327*cdf0e10cSrcweir return E_INVALIDARG; 328*cdf0e10cSrcweir 329*cdf0e10cSrcweir HRESULT hr = E_NOINTERFACE; 330*cdf0e10cSrcweir 331*cdf0e10cSrcweir *ppvObject = NULL; 332*cdf0e10cSrcweir 333*cdf0e10cSrcweir if ( ( __uuidof( IUnknown ) == iid ) || ( __uuidof( IEnumFORMATETC ) == iid ) ) 334*cdf0e10cSrcweir { 335*cdf0e10cSrcweir *ppvObject = static_cast< IUnknown* >( this ); 336*cdf0e10cSrcweir static_cast< LPUNKNOWN >( *ppvObject )->AddRef( ); 337*cdf0e10cSrcweir hr = S_OK; 338*cdf0e10cSrcweir } 339*cdf0e10cSrcweir 340*cdf0e10cSrcweir return hr; 341*cdf0e10cSrcweir } 342*cdf0e10cSrcweir 343*cdf0e10cSrcweir //---------------------------------------------------------------------------- 344*cdf0e10cSrcweir // IUnknown->AddRef 345*cdf0e10cSrcweir //---------------------------------------------------------------------------- 346*cdf0e10cSrcweir 347*cdf0e10cSrcweir STDMETHODIMP_(ULONG) CEnumFormatEtc::AddRef( ) 348*cdf0e10cSrcweir { 349*cdf0e10cSrcweir // keep the dataobject alive 350*cdf0e10cSrcweir m_pUnkDataObj->AddRef( ); 351*cdf0e10cSrcweir return InterlockedIncrement( &m_nRefCnt ); 352*cdf0e10cSrcweir } 353*cdf0e10cSrcweir 354*cdf0e10cSrcweir //---------------------------------------------------------------------------- 355*cdf0e10cSrcweir // IUnknown->Release 356*cdf0e10cSrcweir //---------------------------------------------------------------------------- 357*cdf0e10cSrcweir 358*cdf0e10cSrcweir STDMETHODIMP_(ULONG) CEnumFormatEtc::Release( ) 359*cdf0e10cSrcweir { 360*cdf0e10cSrcweir // release the outer dataobject 361*cdf0e10cSrcweir m_pUnkDataObj->Release( ); 362*cdf0e10cSrcweir 363*cdf0e10cSrcweir // we need a helper variable because it's 364*cdf0e10cSrcweir // not allowed to access a member variable 365*cdf0e10cSrcweir // after an object is destroyed 366*cdf0e10cSrcweir ULONG nRefCnt = InterlockedDecrement( &m_nRefCnt ); 367*cdf0e10cSrcweir if ( 0 == nRefCnt ) 368*cdf0e10cSrcweir delete this; 369*cdf0e10cSrcweir 370*cdf0e10cSrcweir return nRefCnt; 371*cdf0e10cSrcweir } 372*cdf0e10cSrcweir 373*cdf0e10cSrcweir //---------------------------------------------------------------------------- 374*cdf0e10cSrcweir // IEnumFORMATETC->Next 375*cdf0e10cSrcweir //---------------------------------------------------------------------------- 376*cdf0e10cSrcweir 377*cdf0e10cSrcweir STDMETHODIMP CEnumFormatEtc::Next( ULONG celt, LPFORMATETC rgelt, ULONG* pceltFetched ) 378*cdf0e10cSrcweir { 379*cdf0e10cSrcweir OSL_ASSERT( ( ( celt > 0 ) && ( NULL != rgelt ) ) || 380*cdf0e10cSrcweir ( ( 0 == celt ) && ( NULL == rgelt ) ) ); 381*cdf0e10cSrcweir 382*cdf0e10cSrcweir if ( ( 0 != celt ) && ( NULL == rgelt ) ) 383*cdf0e10cSrcweir return E_INVALIDARG; 384*cdf0e10cSrcweir 385*cdf0e10cSrcweir ULONG ulFetched = 0; 386*cdf0e10cSrcweir ULONG ulToFetch = celt; 387*cdf0e10cSrcweir HRESULT hr = S_FALSE; 388*cdf0e10cSrcweir 389*cdf0e10cSrcweir while( ( m_nCurrentPos < sizeof( m_cfFormats ) ) && ( ulToFetch > 0 ) ) 390*cdf0e10cSrcweir { 391*cdf0e10cSrcweir OSL_ASSERT( !IsBadWritePtr( (LPVOID)rgelt, sizeof( FORMATETC ) ) ); 392*cdf0e10cSrcweir 393*cdf0e10cSrcweir rgelt->cfFormat = m_cfFormats[m_nCurrentPos]; 394*cdf0e10cSrcweir rgelt->ptd = NULL; 395*cdf0e10cSrcweir rgelt->dwAspect = DVASPECT_CONTENT; 396*cdf0e10cSrcweir rgelt->lindex = -1; 397*cdf0e10cSrcweir rgelt->tymed = TYMED_HGLOBAL; 398*cdf0e10cSrcweir 399*cdf0e10cSrcweir ++m_nCurrentPos; 400*cdf0e10cSrcweir ++rgelt; 401*cdf0e10cSrcweir --ulToFetch; 402*cdf0e10cSrcweir ++ulFetched; 403*cdf0e10cSrcweir } 404*cdf0e10cSrcweir 405*cdf0e10cSrcweir if ( ulFetched == celt ) 406*cdf0e10cSrcweir hr = S_OK; 407*cdf0e10cSrcweir 408*cdf0e10cSrcweir if ( NULL != pceltFetched ) 409*cdf0e10cSrcweir { 410*cdf0e10cSrcweir OSL_ASSERT( !IsBadWritePtr( (LPVOID)pceltFetched, sizeof( ULONG ) ) ); 411*cdf0e10cSrcweir *pceltFetched = ulFetched; 412*cdf0e10cSrcweir } 413*cdf0e10cSrcweir 414*cdf0e10cSrcweir return hr; 415*cdf0e10cSrcweir } 416*cdf0e10cSrcweir 417*cdf0e10cSrcweir //---------------------------------------------------------------------------- 418*cdf0e10cSrcweir // IEnumFORMATETC->Skip 419*cdf0e10cSrcweir //---------------------------------------------------------------------------- 420*cdf0e10cSrcweir 421*cdf0e10cSrcweir STDMETHODIMP CEnumFormatEtc::Skip( ULONG celt ) 422*cdf0e10cSrcweir { 423*cdf0e10cSrcweir HRESULT hr = S_FALSE; 424*cdf0e10cSrcweir 425*cdf0e10cSrcweir if ( ( m_nCurrentPos + celt ) < sizeof( m_cfFormats ) ) 426*cdf0e10cSrcweir { 427*cdf0e10cSrcweir m_nCurrentPos += celt; 428*cdf0e10cSrcweir hr = S_OK; 429*cdf0e10cSrcweir } 430*cdf0e10cSrcweir 431*cdf0e10cSrcweir return hr; 432*cdf0e10cSrcweir } 433*cdf0e10cSrcweir 434*cdf0e10cSrcweir //---------------------------------------------------------------------------- 435*cdf0e10cSrcweir // IEnumFORMATETC->Reset 436*cdf0e10cSrcweir //---------------------------------------------------------------------------- 437*cdf0e10cSrcweir 438*cdf0e10cSrcweir STDMETHODIMP CEnumFormatEtc::Reset( ) 439*cdf0e10cSrcweir { 440*cdf0e10cSrcweir m_nCurrentPos = 0; 441*cdf0e10cSrcweir return S_OK; 442*cdf0e10cSrcweir } 443*cdf0e10cSrcweir 444*cdf0e10cSrcweir //---------------------------------------------------------------------------- 445*cdf0e10cSrcweir // IEnumFORMATETC->Clone 446*cdf0e10cSrcweir //---------------------------------------------------------------------------- 447*cdf0e10cSrcweir 448*cdf0e10cSrcweir STDMETHODIMP CEnumFormatEtc::Clone( IEnumFORMATETC** ppenum ) 449*cdf0e10cSrcweir { 450*cdf0e10cSrcweir OSL_ASSERT( NULL != ppenum ); 451*cdf0e10cSrcweir 452*cdf0e10cSrcweir if ( NULL == ppenum ) 453*cdf0e10cSrcweir return E_INVALIDARG; 454*cdf0e10cSrcweir 455*cdf0e10cSrcweir HRESULT hr = E_FAIL; 456*cdf0e10cSrcweir 457*cdf0e10cSrcweir *ppenum = NULL; 458*cdf0e10cSrcweir 459*cdf0e10cSrcweir CEnumFormatEtc* pCEnumFEtc = new CEnumFormatEtc( m_pUnkDataObj ); 460*cdf0e10cSrcweir if ( NULL != pCEnumFEtc ) 461*cdf0e10cSrcweir { 462*cdf0e10cSrcweir pCEnumFEtc->m_nCurrentPos = m_nCurrentPos; 463*cdf0e10cSrcweir *ppenum = static_cast< IEnumFORMATETC* >( pCEnumFEtc ); 464*cdf0e10cSrcweir static_cast< LPUNKNOWN >( *ppenum )->AddRef( ); 465*cdf0e10cSrcweir hr = NOERROR; 466*cdf0e10cSrcweir } 467*cdf0e10cSrcweir 468*cdf0e10cSrcweir return hr; 469*cdf0e10cSrcweir } 470*cdf0e10cSrcweir 471