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Fixed OleLoadFromStream: Dereference ppvObj and get IPersistStream

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instead of accessing IUnknown.
This commit is contained in:
Marcus Meissner 2000-10-28 00:30:42 +00:00 committed by Alexandre Julliard
parent f9b6d7bb27
commit 52475287da
1 changed files with 20 additions and 12 deletions
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32
dlls/ole32/storage32.c
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@ -5686,22 +5686,30 @@ HRESULT WINAPI ReadClassStg(IStorage *pstg,CLSID *pclsid){
*/
HRESULT WINAPI OleLoadFromStream(IStream *pStm,REFIID iidInterface,void** ppvObj)
{
CLSID clsid;
HRESULT res;
CLSID clsid;
HRESULT res;
LPPERSISTSTREAM xstm;
FIXME("(),stub!\n");
TRACE("(%p,%s,%p)\n",pStm,debugstr_guid(iidInterface),ppvObj);
res=ReadClassStm(pStm,&clsid);
if (SUCCEEDED(res)){
res=CoCreateInstance(&clsid,NULL,CLSCTX_INPROC_SERVER,iidInterface,ppvObj);
if (SUCCEEDED(res))
res=IPersistStream_Load((IPersistStream*)ppvObj,pStm);
if (!SUCCEEDED(res))
return res;
res=CoCreateInstance(&clsid,NULL,CLSCTX_INPROC_SERVER,iidInterface,ppvObj);
if (!SUCCEEDED(res))
return res;
res=IUnknown_QueryInterface((IUnknown*)*ppvObj,&IID_IPersistStream,(LPVOID*)&xstm);
if (!SUCCEEDED(res)) {
IUnknown_Release((IUnknown*)*ppvObj);
return res;
}
res=IPersistStream_Load(xstm,pStm);
IPersistStream_Release(xstm);
/* FIXME: all refcounts ok at this point? I think they should be:
* pStm : unchanged
* ppvObj : 1
* xstm : 0 (released)
*/
return res;
}