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ole32: Add support for rendering storage data to the clipboard.

This commit is contained in:
Huw Davies 2009-04-16 12:05:26 +01:00 committed by Alexandre Julliard
parent f4745c0a06
commit 469d6ea2df
1 changed files with 60 additions and 1 deletions
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61
dlls/ole32/clipboard.c
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@ -557,6 +557,61 @@ static inline ole_priv_data_entry *find_format_in_list(ole_priv_data_entry *entr
return NULL;
}
/***************************************************************************
* get_data_from_storage
*
* Returns storage data in an HGLOBAL.
*/
static HRESULT get_data_from_storage(IDataObject *data, FORMATETC *fmt, HGLOBAL *mem)
{
HGLOBAL h;
IStorage *stg;
HRESULT hr;
FORMATETC stg_fmt;
STGMEDIUM med;
ILockBytes *lbs;
*mem = NULL;
h = GlobalAlloc( GMEM_DDESHARE|GMEM_MOVEABLE, 0 );
if(!h) return E_OUTOFMEMORY;
hr = CreateILockBytesOnHGlobal(h, FALSE, &lbs);
if(SUCCEEDED(hr))
{
hr = StgCreateDocfileOnILockBytes(lbs, STGM_CREATE|STGM_SHARE_EXCLUSIVE|STGM_READWRITE, 0, &stg);
ILockBytes_Release(lbs);
}
if(FAILED(hr))
{
GlobalFree(h);
return hr;
}
stg_fmt = *fmt;
med.tymed = stg_fmt.tymed = TYMED_ISTORAGE;
med.u.pstg = stg;
med.pUnkForRelease = NULL;
hr = IDataObject_GetDataHere(data, &stg_fmt, &med);
if(FAILED(hr))
{
med.u.pstg = NULL;
hr = IDataObject_GetData(data, &stg_fmt, &med);
if(FAILED(hr)) goto end;
hr = IStorage_CopyTo(med.u.pstg, 0, NULL, NULL, stg);
ReleaseStgMedium(&med);
if(FAILED(hr)) goto end;
}
*mem = h;
end:
IStorage_Release(stg);
if(FAILED(hr)) GlobalFree(h);
return hr;
}
/***************************************************************************
* get_data_from_stream
*
@ -656,7 +711,11 @@ static HRESULT render_format(IDataObject *data, LPFORMATETC fmt)
return render_embed_source_hack(data, fmt);
}
if(fmt->tymed & TYMED_ISTREAM)
if(fmt->tymed & TYMED_ISTORAGE)
{
hr = get_data_from_storage(data, fmt, &clip_data);
}
else if(fmt->tymed & TYMED_ISTREAM)
{
hr = get_data_from_stream(data, fmt, &clip_data);
}