Re: calling function

From:

Alan Johnson <awjcs@yahoo.com>

Newsgroups:

comp.lang.c++

Date:

Fri, 21 Mar 2008 23:06:57 -0700

Message-ID:

<15Cdnaqu76icP3nanZ2dnUVZ_r6rnZ2d@comcast.com>

June Lee wrote:

how can I call the put_ConnectionString correctly?

when I do the following I got compile error
                           BSTR bstr = "aaa";
        hr.put_ConnectionString(bstr);

###################################

HRESULT CEPGLibApp::LoadXMLData(LPCTSTR tszXMLFileName)
{
    HRESULT hr = S_OK;

    CComPtr<ISQLXMLBulkLoad> pIXMLBulkLoad;
    hr = CoCreateInstance(CLSID_SQLXMLBulkLoad3, NULL,
CLSCTX_INPROC_SERVER, IID_ISQLXMLBulkLoad, (void **)&pIXMLBulkLoad);

    if (SUCCEEDED(hr)) {
                           BSTR bstr = "aaa";
        hr.put_ConnectionString(bstr);
    }

    if (SUCCEEDED(hr)) {
    }

    if (SUCCEEDED(hr)) {
    }

    return hr;
}

######################################

    ISQLXMLBulkLoad : public IDispatch
    {
    public:
        virtual /* [helpstring][id][propget] */ HRESULT
STDMETHODCALLTYPE get_ConnectionString(
            /* [retval][out] */ BSTR *pbstrConnectionString) = 0;

        virtual /* [helpstring][id][propput] */ HRESULT
STDMETHODCALLTYPE put_ConnectionString(
            /* [in] */ BSTR bstrConnectionString) = 0;


################################

typedef /* [wire_marshal] */ OLECHAR *BSTR;

#################################

typedef WCHAR OLECHAR;

################################

The only put_ConnectionString declared in the code you show is a member
of ISQLXMLBulkLoad, which one might infer is a #define for some type of
class. You are trying to call it, however, as if it were a member of
HRESULT.

If I had to guess from context, you probably want to call it as:
pIXMLBulkLoad->put_ConnectionString(bstr);

--
Alan Johnson