IDataObjectImpl Struct Reference

implementation of IDataObject interface More...

#include <dragdropimpl.h>

Inheritance diagram for IDataObjectImpl:

Collaboration diagram for IDataObjectImpl:

Public Member Functions
	IDataObjectImpl (IDropSourceImpl *pDropSource)
virtual	~IDataObjectImpl ()
void	CopyMedium (STGMEDIUM *pMedDest, STGMEDIUM *pMedSrc, FORMATETC *pFmtSrc)
virtual HRESULT STDMETHODCALLTYPE	GetData (FORMATETC __RPC_FAR *pformatetcIn, STGMEDIUM __RPC_FAR *pmedium)
virtual HRESULT STDMETHODCALLTYPE	GetDataHere (FORMATETC __RPC_FAR *pformatetc, STGMEDIUM __RPC_FAR *pmedium)
virtual HRESULT STDMETHODCALLTYPE	QueryGetData (FORMATETC __RPC_FAR *pformatetc)
virtual HRESULT STDMETHODCALLTYPE	GetCanonicalFormatEtc (FORMATETC __RPC_FAR *pformatectIn, FORMATETC __RPC_FAR *pformatetcOut)
virtual HRESULT STDMETHODCALLTYPE	SetData (FORMATETC __RPC_FAR *pformatetc, STGMEDIUM __RPC_FAR *pmedium, BOOL fRelease)
virtual HRESULT STDMETHODCALLTYPE	EnumFormatEtc (DWORD dwDirection, IEnumFORMATETC __RPC_FAR *__RPC_FAR *ppenumFormatEtc)
virtual HRESULT STDMETHODCALLTYPE	DAdvise (FORMATETC __RPC_FAR *pformatetc, DWORD advf, IAdviseSink __RPC_FAR *pAdvSink, DWORD __RPC_FAR *pdwConnection)
virtual HRESULT STDMETHODCALLTYPE	DUnadvise (DWORD dwConnection)
virtual HRESULT STDMETHODCALLTYPE	EnumDAdvise (IEnumSTATDATA __RPC_FAR *__RPC_FAR *ppenumAdvise)
Public Member Functions inherited from IComSrvBase< IDataObject, IDataObjectImpl >
	STDMETHODIMP_ (ULONG) AddRef()
	STDMETHODIMP_ (ULONG) Release()
Public Member Functions inherited from IComSrvQI< BASE >
	IComSrvQI (REFIID uuid_base)
STDMETHODIMP	QueryInterface (REFIID riid, LPVOID *ppv)
Public Member Functions inherited from SimpleComObject
ULONG	IncRef ()
ULONG	DecRef ()

Public Attributes
IDataObject	IDataObject_iface
LONG	ref

Private Types
typedef IComSrvBase< IDataObject, IDataObjectImpl >	super

Private Attributes
IDropSourceImpl *	m_pDropSource
long	m_cRefCount
StorageArray	_storage

Additional Inherited Members
Protected Member Functions inherited from IComSrvBase< IDataObject, IDataObjectImpl >
	IComSrvBase (REFIID uuid_base)
Protected Member Functions inherited from IComSrvQI< BASE >
	IComSrvQI ()
virtual	~IComSrvQI ()
Protected Member Functions inherited from ComSrvObject
	ComSrvObject ()
virtual	~ComSrvObject ()
Protected Attributes inherited from IComSrvQI< BASE >
REFIID	_uuid_base
Protected Attributes inherited from ComSrvObject
ULONG	_ref

Detailed Description

implementation of IDataObject interface

Definition at line 79 of file dragdropimpl.h.

Member Typedef Documentation

super

typedef IComSrvBase<IDataObject, IDataObjectImpl> IDataObjectImpl::super

private

Definition at line 83 of file dragdropimpl.h.

Constructor & Destructor Documentation

IDataObjectImpl()

IDataObjectImpl::IDataObjectImpl

(

IDropSourceImpl *

pDropSource

)

Definition at line 24 of file dragdropimpl.cpp.

 :  super(IID_IDataObject),
    m_pDropSource(pDropSource),
    m_cRefCount(0)
{
}

~IDataObjectImpl()

IDataObjectImpl::~IDataObjectImpl ( )

virtual

Definition at line 31 of file dragdropimpl.cpp.

{
    for(StorageArray::iterator it=_storage.begin(); it!=_storage.end(); ++it)
        ReleaseStgMedium(it->_medium);
}

Member Function Documentation

CopyMedium()

void IDataObjectImpl::CopyMedium	(	STGMEDIUM *	pMedDest,
		STGMEDIUM *	pMedSrc,
		FORMATETC *	pFmtSrc
	)

Definition at line 140 of file dragdropimpl.cpp.

{
    switch(pMedSrc->tymed)
    {
    case TYMED_HGLOBAL:
        pMedDest->hGlobal = (HGLOBAL)OleDuplicateData(pMedSrc->hGlobal, pFmtSrc->cfFormat, 0);
        break;
    case TYMED_GDI:
        pMedDest->hBitmap = (HBITMAP)OleDuplicateData(pMedSrc->hBitmap, pFmtSrc->cfFormat, 0);
        break;
    case TYMED_MFPICT:
        pMedDest->hMetaFilePict = (HMETAFILEPICT)OleDuplicateData(pMedSrc->hMetaFilePict, pFmtSrc->cfFormat, 0);
        break;
    case TYMED_ENHMF:
        pMedDest->hEnhMetaFile = (HENHMETAFILE)OleDuplicateData(pMedSrc->hEnhMetaFile, pFmtSrc->cfFormat, 0);
        break;
    case TYMED_FILE:
        pMedDest->lpszFileName = (LPOLESTR)OleDuplicateData(pMedSrc->lpszFileName, pFmtSrc->cfFormat, 0);
        break;
    case TYMED_ISTREAM:
        pMedDest->pstm = pMedSrc->pstm;
        pMedSrc->pstm->AddRef();
        break;
    case TYMED_ISTORAGE:
        pMedDest->pstg = pMedSrc->pstg;
        pMedSrc->pstg->AddRef();
        break;
    case TYMED_NULL:
    default:
        break;
    }
    pMedDest->tymed = pMedSrc->tymed;
    pMedDest->pUnkForRelease = pMedSrc->pUnkForRelease;
}

Referenced by GetData(), and SetData().

DAdvise()

STDMETHODIMP IDataObjectImpl::DAdvise ( FORMATETC __RPC_FAR *  pformatetc, DWORD  advf, IAdviseSink __RPC_FAR *  pAdvSink, DWORD __RPC_FAR *  pdwConnection  )

virtual

Definition at line 203 of file dragdropimpl.cpp.

{
    return OLE_E_ADVISENOTSUPPORTED;
}

DUnadvise()

STDMETHODIMP IDataObjectImpl::DUnadvise ( DWORD  dwConnection )

virtual

Definition at line 212 of file dragdropimpl.cpp.

{
    return E_NOTIMPL;
}

EnumDAdvise()

HRESULT STDMETHODCALLTYPE IDataObjectImpl::EnumDAdvise ( IEnumSTATDATA __RPC_FAR *__RPC_FAR *  ppenumAdvise )

virtual

Definition at line 218 of file dragdropimpl.cpp.

{
    return OLE_E_ADVISENOTSUPPORTED;
}

EnumFormatEtc()

STDMETHODIMP IDataObjectImpl::EnumFormatEtc ( DWORD  dwDirection, IEnumFORMATETC __RPC_FAR *__RPC_FAR *  ppenumFormatEtc  )

virtual

Definition at line 175 of file dragdropimpl.cpp.

{
    if (ppenumFormatEtc == NULL)
      return E_POINTER;
 
    *ppenumFormatEtc=NULL;
    switch (dwDirection)
    {
      case DATADIR_GET:
         *ppenumFormatEtc = new EnumFormatEtcImpl(_storage);
 
         if (!*ppenumFormatEtc)
             return E_OUTOFMEMORY;
 
         (*ppenumFormatEtc)->AddRef();
         break;
 
      case DATADIR_SET:
      default:
         return E_NOTIMPL;
         break;
    }
 
   return S_OK;
}

GetCanonicalFormatEtc()

STDMETHODIMP IDataObjectImpl::GetCanonicalFormatEtc ( FORMATETC __RPC_FAR *  pformatectIn, FORMATETC __RPC_FAR *  pformatetcOut  )

virtual

Definition at line 95 of file dragdropimpl.cpp.

{
    if (pformatetcOut == NULL)
        return E_INVALIDARG;
 
    return DATA_S_SAMEFORMATETC;
}

GetData()

STDMETHODIMP IDataObjectImpl::GetData ( FORMATETC __RPC_FAR *  pformatetcIn, STGMEDIUM __RPC_FAR *  pmedium  )

virtual

Definition at line 37 of file dragdropimpl.cpp.

{
    if (pformatetcIn == NULL || pmedium == NULL)
        return E_INVALIDARG;
 
    pmedium->hGlobal = NULL;
 
    for(StorageArray::iterator it=_storage.begin(); it!=_storage.end(); ++it)
    {
        if (pformatetcIn->tymed & it->_format->tymed &&
           pformatetcIn->dwAspect == it->_format->dwAspect &&
           pformatetcIn->cfFormat == it->_format->cfFormat)
        {
            CopyMedium(pmedium, it->_medium, it->_format);
            return S_OK;
        }
    }
 
    return DV_E_FORMATETC;
}

GetDataHere()

STDMETHODIMP IDataObjectImpl::GetDataHere ( FORMATETC __RPC_FAR *  pformatetc, STGMEDIUM __RPC_FAR *  pmedium  )

virtual

Definition at line 60 of file dragdropimpl.cpp.

{
    return E_NOTIMPL;
}

QueryGetData()

STDMETHODIMP IDataObjectImpl::QueryGetData ( FORMATETC __RPC_FAR *  pformatetc )

virtual

Definition at line 67 of file dragdropimpl.cpp.

{
    if (pformatetc == NULL)
        return E_INVALIDARG;
 
    //support others if needed DVASPECT_THUMBNAIL  //DVASPECT_ICON   //DVASPECT_DOCPRINT
    if (!(DVASPECT_CONTENT & pformatetc->dwAspect))
        return (DV_E_DVASPECT);
 
    HRESULT  hr = DV_E_TYMED;
 
    for(StorageArray::iterator it=_storage.begin(); it!=_storage.end(); ++it)
    {
       if (pformatetc->tymed & it->_format->tymed)
       {
          if (pformatetc->cfFormat == it->_format->cfFormat)
             return S_OK;
          else
             hr = DV_E_CLIPFORMAT;
       }
       else
          hr = DV_E_TYMED;
    }
 
    return hr;
}

SetData()

STDMETHODIMP IDataObjectImpl::SetData ( FORMATETC __RPC_FAR *  pformatetc, STGMEDIUM __RPC_FAR *  pmedium, BOOL  fRelease  )

virtual

Definition at line 105 of file dragdropimpl.cpp.

{
    if (pformatetc == NULL || pmedium == NULL)
      return E_INVALIDARG;
 
    assert(pformatetc->tymed == pmedium->tymed);
    FORMATETC* fetc=new FORMATETC;
    STGMEDIUM* pStgMed = new STGMEDIUM;
 
    if (fetc == NULL || pStgMed == NULL)
        return E_OUTOFMEMORY;
 
    ZeroMemory(fetc, sizeof(FORMATETC));
    ZeroMemory(pStgMed, sizeof(STGMEDIUM));
 
    *fetc = *pformatetc;
 
    if (fRelease)
      *pStgMed = *pmedium;
    else
        CopyMedium(pStgMed, pmedium, pformatetc);
 
    DataStorage storage;
 
    storage._format = fetc;
    storage._medium = pStgMed;
 
    _storage.push_back(storage);
 
    return S_OK;
}

Member Data Documentation

_storage

StorageArray IDataObjectImpl::_storage

private

Definition at line 88 of file dragdropimpl.h.

Referenced by EnumFormatEtc(), GetData(), QueryGetData(), SetData(), and ~IDataObjectImpl().

IDataObject_iface

IDataObject IDataObjectImpl::IDataObject_iface

Definition at line 142 of file shlview.c.

m_cRefCount

long IDataObjectImpl::m_cRefCount

private

Definition at line 86 of file dragdropimpl.h.

m_pDropSource

IDropSourceImpl* IDataObjectImpl::m_pDropSource

private

Definition at line 85 of file dragdropimpl.h.

ref

LONG IDataObjectImpl::ref

Definition at line 143 of file shlview.c.

---

The documentation for this struct was generated from the following files:

• modules/rosapps/applications/explorer-old/utility/dragdropimpl.h
• modules/rostests/winetests/shell32/shlview.c
• modules/rosapps/applications/explorer-old/utility/dragdropimpl.cpp