这里讨论的是ADO调用存储过程,按MSDN的例子,一般都是下面的调用方法(节选自MSDN):
HRESULT hr = S_OK;
    // Define ADO object pointers.
    // Initialize pointers on define.
    // These are in the ADODB::  namespace.
    _RecordsetPtr pRstByRoyalty = NULL;
    _RecordsetPtr pRstAuthors = NULL;  
    _CommandPtr   pcmdByRoyalty = NULL;
    _ParameterPtr pprmByRoyalty = NULL;
    _ConnectionPtr pConnection = NULL;
    _bstr_t strCnn("Provider=sqloledb;Data Source=srv;"
        "Initial Catalog=Pubs;User Id=sa;Password=;");
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