mirror of
git://source.winehq.org/git/wine.git
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475 lines
13 KiB
C
475 lines
13 KiB
C
/*
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* IEnumFORMATETC, IDataObject
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*
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* selecting and dropping objects within the shell and/or common dialogs
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*
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* Copyright 1998, 1999 <juergen.schmied@metronet.de>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <string.h>
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#define COBJMACROS
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#include "windef.h"
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#include "wingdi.h"
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#include "pidl.h"
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#include "winerror.h"
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#include "shell32_main.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(shell);
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/***********************************************************************
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* IEnumFORMATETC implementation
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*/
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typedef struct
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{
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/* IUnknown fields */
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IEnumFORMATETC IEnumFORMATETC_iface;
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LONG ref;
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/* IEnumFORMATETC fields */
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UINT posFmt;
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UINT countFmt;
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LPFORMATETC pFmt;
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} IEnumFORMATETCImpl;
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static inline IEnumFORMATETCImpl *impl_from_IEnumFORMATETC(IEnumFORMATETC *iface)
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{
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return CONTAINING_RECORD(iface, IEnumFORMATETCImpl, IEnumFORMATETC_iface);
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}
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static HRESULT WINAPI IEnumFORMATETC_fnQueryInterface(
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LPENUMFORMATETC iface, REFIID riid, LPVOID* ppvObj)
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{
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IEnumFORMATETCImpl *This = impl_from_IEnumFORMATETC(iface);
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TRACE("(%p)->(\n\tIID:\t%s,%p)\n",This,debugstr_guid(riid),ppvObj);
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*ppvObj = NULL;
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if(IsEqualIID(riid, &IID_IUnknown) ||
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IsEqualIID(riid, &IID_IEnumFORMATETC))
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{
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*ppvObj = &This->IEnumFORMATETC_iface;
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}
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if(*ppvObj)
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{
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IUnknown_AddRef((IUnknown*)(*ppvObj));
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TRACE("-- Interface: (%p)->(%p)\n",ppvObj,*ppvObj);
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return S_OK;
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}
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TRACE("-- Interface: E_NOINTERFACE\n");
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return E_NOINTERFACE;
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}
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static ULONG WINAPI IEnumFORMATETC_fnAddRef(LPENUMFORMATETC iface)
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{
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IEnumFORMATETCImpl *This = impl_from_IEnumFORMATETC(iface);
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ULONG refCount = InterlockedIncrement(&This->ref);
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TRACE("(%p)->(count=%lu)\n", This, refCount - 1);
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return refCount;
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}
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static ULONG WINAPI IEnumFORMATETC_fnRelease(LPENUMFORMATETC iface)
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{
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IEnumFORMATETCImpl *This = impl_from_IEnumFORMATETC(iface);
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ULONG refCount = InterlockedDecrement(&This->ref);
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TRACE("(%p)->(%lu)\n", This, refCount + 1);
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if (!refCount)
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{
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TRACE(" destroying IEnumFORMATETC(%p)\n",This);
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SHFree (This->pFmt);
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free(This);
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}
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return refCount;
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}
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static HRESULT WINAPI IEnumFORMATETC_fnNext(LPENUMFORMATETC iface, ULONG celt, FORMATETC *rgelt, ULONG *pceltFethed)
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{
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IEnumFORMATETCImpl *This = impl_from_IEnumFORMATETC(iface);
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UINT i;
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TRACE("(%p)->(%lu,%p)\n", This, celt, rgelt);
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if(!This->pFmt)return S_FALSE;
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if(!rgelt) return E_INVALIDARG;
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if (pceltFethed) *pceltFethed = 0;
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for(i = 0; This->posFmt < This->countFmt && celt > i; i++)
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{
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*rgelt++ = This->pFmt[This->posFmt++];
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}
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if (pceltFethed) *pceltFethed = i;
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return ((i == celt) ? S_OK : S_FALSE);
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}
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static HRESULT WINAPI IEnumFORMATETC_fnSkip(LPENUMFORMATETC iface, ULONG celt)
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{
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IEnumFORMATETCImpl *This = impl_from_IEnumFORMATETC(iface);
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TRACE("(%p)->(num=%lu)\n", This, celt);
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if((This->posFmt + celt) >= This->countFmt) return S_FALSE;
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This->posFmt += celt;
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return S_OK;
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}
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static HRESULT WINAPI IEnumFORMATETC_fnReset(LPENUMFORMATETC iface)
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{
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IEnumFORMATETCImpl *This = impl_from_IEnumFORMATETC(iface);
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TRACE("(%p)->()\n", This);
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This->posFmt = 0;
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return S_OK;
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}
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static HRESULT WINAPI IEnumFORMATETC_fnClone(LPENUMFORMATETC iface, LPENUMFORMATETC* ppenum)
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{
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IEnumFORMATETCImpl *This = impl_from_IEnumFORMATETC(iface);
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TRACE("(%p)->(ppenum=%p)\n", This, ppenum);
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if (!ppenum) return E_INVALIDARG;
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*ppenum = IEnumFORMATETC_Constructor(This->countFmt, This->pFmt);
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if(*ppenum)
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IEnumFORMATETC_fnSkip(*ppenum, This->posFmt);
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return S_OK;
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}
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static const IEnumFORMATETCVtbl efvt =
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{
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IEnumFORMATETC_fnQueryInterface,
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IEnumFORMATETC_fnAddRef,
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IEnumFORMATETC_fnRelease,
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IEnumFORMATETC_fnNext,
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IEnumFORMATETC_fnSkip,
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IEnumFORMATETC_fnReset,
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IEnumFORMATETC_fnClone
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};
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LPENUMFORMATETC IEnumFORMATETC_Constructor(UINT cfmt, const FORMATETC afmt[])
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{
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IEnumFORMATETCImpl* ef;
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DWORD size=cfmt * sizeof(FORMATETC);
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ef = calloc(1, sizeof(*ef));
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if(ef)
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{
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ef->ref=1;
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ef->IEnumFORMATETC_iface.lpVtbl = &efvt;
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ef->countFmt = cfmt;
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ef->pFmt = SHAlloc (size);
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if (ef->pFmt)
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memcpy(ef->pFmt, afmt, size);
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}
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TRACE("(%p)->(%u,%p)\n",ef, cfmt, afmt);
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return &ef->IEnumFORMATETC_iface;
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}
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struct data
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{
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UINT cf;
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HGLOBAL global;
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};
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typedef struct
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{
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IDataObject IDataObject_iface;
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LONG ref;
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struct data *data;
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size_t data_count;
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} IDataObjectImpl;
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static inline IDataObjectImpl *impl_from_IDataObject(IDataObject *iface)
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{
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return CONTAINING_RECORD(iface, IDataObjectImpl, IDataObject_iface);
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}
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/***************************************************************************
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* IDataObject_QueryInterface
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*/
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static HRESULT WINAPI IDataObject_fnQueryInterface(IDataObject *iface, REFIID riid, LPVOID * ppvObj)
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{
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IDataObjectImpl *This = impl_from_IDataObject(iface);
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TRACE("(%p)->(\n\tIID:\t%s,%p)\n",This,debugstr_guid(riid),ppvObj);
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*ppvObj = NULL;
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if(IsEqualIID(riid, &IID_IUnknown) ||
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IsEqualIID(riid, &IID_IDataObject))
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{
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*ppvObj = &This->IDataObject_iface;
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}
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if(*ppvObj)
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{
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IUnknown_AddRef((IUnknown*)*ppvObj);
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TRACE("-- Interface: (%p)->(%p)\n",ppvObj,*ppvObj);
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return S_OK;
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}
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TRACE("-- Interface: E_NOINTERFACE\n");
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return E_NOINTERFACE;
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}
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/**************************************************************************
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* IDataObject_AddRef
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*/
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static ULONG WINAPI IDataObject_fnAddRef(IDataObject *iface)
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{
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IDataObjectImpl *This = impl_from_IDataObject(iface);
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ULONG refCount = InterlockedIncrement(&This->ref);
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TRACE("(%p)->(count=%lu)\n", This, refCount - 1);
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return refCount;
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}
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/**************************************************************************
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* IDataObject_Release
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*/
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static ULONG WINAPI IDataObject_fnRelease(IDataObject *iface)
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{
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IDataObjectImpl *obj = impl_from_IDataObject(iface);
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ULONG refcount = InterlockedDecrement(&obj->ref);
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TRACE("%p decreasing refcount to %lu.\n", obj, refcount);
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if (!refcount)
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{
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for (size_t i = 0; i < obj->data_count; ++i)
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GlobalFree(obj->data[i].global);
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free(obj->data);
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free(obj);
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}
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return refcount;
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}
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/**************************************************************************
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* IDataObject_fnGetData
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*/
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static HRESULT WINAPI IDataObject_fnGetData(IDataObject *iface, FORMATETC *format, STGMEDIUM *medium)
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{
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IDataObjectImpl *obj = impl_from_IDataObject(iface);
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TRACE("iface %p, format %p, medium %p.\n", iface, format, medium);
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if (!(format->tymed & TYMED_HGLOBAL))
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{
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FIXME("Unrecognized tymed %#lx, returning DV_E_FORMATETC.\n", format->tymed);
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return DV_E_FORMATETC;
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}
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for (size_t i = 0; i < obj->data_count; ++i)
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{
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if (obj->data[i].cf == format->cfFormat)
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{
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HGLOBAL src_global = obj->data[i].global;
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size_t size = GlobalSize(src_global);
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HGLOBAL dst_global;
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const void *src;
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void *dst;
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if (!(dst_global = GlobalAlloc(GMEM_MOVEABLE, size)))
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return E_OUTOFMEMORY;
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src = GlobalLock(src_global);
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dst = GlobalLock(dst_global);
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memcpy(dst, src, size);
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GlobalUnlock(src_global);
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GlobalUnlock(dst_global);
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medium->tymed = TYMED_HGLOBAL;
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medium->pUnkForRelease = NULL;
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medium->hGlobal = dst_global;
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return S_OK;
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}
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}
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return DV_E_FORMATETC;
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}
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static HRESULT WINAPI IDataObject_fnGetDataHere(IDataObject *iface, LPFORMATETC pformatetc, STGMEDIUM *pmedium)
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{
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IDataObjectImpl *This = impl_from_IDataObject(iface);
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FIXME("(%p)->()\n", This);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI IDataObject_fnQueryGetData(IDataObject *iface, FORMATETC *format)
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{
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IDataObjectImpl *obj = impl_from_IDataObject(iface);
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TRACE("iface %p, format %p.\n", iface, format);
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if (!(format->tymed & TYMED_HGLOBAL))
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{
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FIXME("Unrecognized tymed %#lx, returning S_FALSE.\n", format->tymed);
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return S_FALSE;
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}
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for (size_t i = 0; i < obj->data_count; ++i)
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{
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if (obj->data[i].cf == format->cfFormat)
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return S_OK;
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}
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return S_FALSE;
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}
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static HRESULT WINAPI IDataObject_fnGetCanonicalFormatEtc(IDataObject *iface, LPFORMATETC pformatectIn, LPFORMATETC pformatetcOut)
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{
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IDataObjectImpl *This = impl_from_IDataObject(iface);
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FIXME("(%p)->()\n", This);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI IDataObject_fnSetData(IDataObject *iface,
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FORMATETC *format, STGMEDIUM *medium, BOOL release)
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{
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IDataObjectImpl *obj = impl_from_IDataObject(iface);
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struct data *new_array;
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TRACE("iface %p, format %p, medium %p, release %d.\n", iface, format, medium, release);
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if (!release)
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return E_INVALIDARG;
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if (format->tymed != TYMED_HGLOBAL)
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{
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FIXME("Unhandled format tymed %#lx.\n", format->tymed);
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return E_NOTIMPL;
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}
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if (medium->tymed != TYMED_HGLOBAL)
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{
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FIXME("Unhandled medium tymed %#lx.\n", format->tymed);
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return E_NOTIMPL;
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}
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if (medium->pUnkForRelease)
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FIXME("Ignoring IUnknown %p.\n", medium->pUnkForRelease);
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for (size_t i = 0; i < obj->data_count; ++i)
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{
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if (obj->data[i].cf == format->cfFormat)
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{
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GlobalFree(obj->data[i].global);
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obj->data[i].global = medium->hGlobal;
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return S_OK;
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}
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}
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if (!(new_array = realloc(obj->data, (obj->data_count + 1) * sizeof(*obj->data))))
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return E_OUTOFMEMORY;
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obj->data = new_array;
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obj->data[obj->data_count].cf = format->cfFormat;
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obj->data[obj->data_count].global = medium->hGlobal;
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++obj->data_count;
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return S_OK;
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}
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static HRESULT WINAPI IDataObject_fnEnumFormatEtc(IDataObject *iface, DWORD direction, IEnumFORMATETC **out)
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{
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IDataObjectImpl *obj = impl_from_IDataObject(iface);
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FORMATETC *formats;
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TRACE("iface %p, direction %#lx, out %p.\n", iface, direction, out);
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if (!(formats = calloc(obj->data_count, sizeof(*formats))))
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return E_OUTOFMEMORY;
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for (size_t i = 0; i < obj->data_count; ++i)
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InitFormatEtc(formats[i], obj->data[i].cf, TYMED_HGLOBAL);
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if (!(*out = IEnumFORMATETC_Constructor(obj->data_count, formats)))
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{
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free(formats);
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return E_OUTOFMEMORY;
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}
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free(formats);
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return S_OK;
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}
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static HRESULT WINAPI IDataObject_fnDAdvise(IDataObject *iface, FORMATETC *pformatetc, DWORD advf, IAdviseSink *pAdvSink, DWORD *pdwConnection)
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{
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IDataObjectImpl *This = impl_from_IDataObject(iface);
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FIXME("(%p)->()\n", This);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI IDataObject_fnDUnadvise(IDataObject *iface, DWORD dwConnection)
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{
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IDataObjectImpl *This = impl_from_IDataObject(iface);
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FIXME("(%p)->()\n", This);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI IDataObject_fnEnumDAdvise(IDataObject *iface, IEnumSTATDATA **ppenumAdvise)
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{
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IDataObjectImpl *This = impl_from_IDataObject(iface);
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FIXME("(%p)->()\n", This);
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return E_NOTIMPL;
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}
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static const IDataObjectVtbl dtovt =
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{
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IDataObject_fnQueryInterface,
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IDataObject_fnAddRef,
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IDataObject_fnRelease,
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IDataObject_fnGetData,
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IDataObject_fnGetDataHere,
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IDataObject_fnQueryGetData,
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IDataObject_fnGetCanonicalFormatEtc,
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IDataObject_fnSetData,
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IDataObject_fnEnumFormatEtc,
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IDataObject_fnDAdvise,
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IDataObject_fnDUnadvise,
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IDataObject_fnEnumDAdvise
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};
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/**************************************************************************
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* IDataObject_Constructor
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*/
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IDataObject *IDataObject_Constructor(HWND hwnd, const ITEMIDLIST *root_pidl,
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const ITEMIDLIST **pidls, UINT pidl_count)
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{
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IDataObjectImpl *obj;
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if (!(obj = calloc(1, sizeof(*obj))))
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return NULL;
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obj->ref = 1;
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obj->IDataObject_iface.lpVtbl = &dtovt;
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obj->data = calloc(4, sizeof(*obj->data));
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obj->data[0].cf = RegisterClipboardFormatW(CFSTR_SHELLIDLISTW);
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obj->data[0].global = RenderSHELLIDLIST(root_pidl, pidls, pidl_count);
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obj->data[1].cf = CF_HDROP;
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obj->data[1].global = RenderHDROP(root_pidl, pidls, pidl_count);
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obj->data[2].cf = RegisterClipboardFormatA(CFSTR_FILENAMEA);
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obj->data[2].global = RenderFILENAMEA(root_pidl, pidls, pidl_count);
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obj->data[3].cf = RegisterClipboardFormatW(CFSTR_FILENAMEW);
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obj->data[3].global = RenderFILENAMEW(root_pidl, pidls, pidl_count);
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obj->data_count = 4;
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TRACE("Created data object %p.\n", obj);
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return &obj->IDataObject_iface;
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}
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