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urlmon: Use QueryInterface in get_callback.

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Jacek Caban 2007-10-26 00:21:21 +02:00 committed by Alexandre Julliard
parent 3d9b69f5a3
commit fe04ba0aab
1 changed files with 7 additions and 4 deletions
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11
dlls/urlmon/binding.c
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@ -1035,15 +1035,18 @@ static const IServiceProviderVtbl ServiceProviderVtbl = {
static HRESULT get_callback(IBindCtx *pbc, IBindStatusCallback **callback)
{
IUnknown *unk;
HRESULT hres;
static WCHAR wszBSCBHolder[] = { '_','B','S','C','B','_','H','o','l','d','e','r','_',0 };
hres = IBindCtx_GetObjectParam(pbc, wszBSCBHolder, (IUnknown**)callback);
if(FAILED(hres))
return MK_E_SYNTAX;
hres = IBindCtx_GetObjectParam(pbc, wszBSCBHolder, &unk);
if(SUCCEEDED(hres)) {
hres = IUnknown_QueryInterface(unk, &IID_IBindStatusCallback, (void**)callback);
IUnknown_Release(unk);
}
return S_OK;
return SUCCEEDED(hres) ? S_OK : MK_E_SYNTAX;
}
static HRESULT get_protocol(Binding *This, LPCWSTR url)