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3:ÔÚBOOL  CXXXApp::InitInstance()Öгõʼ»¯COM»·¾³
BOOL CXXXApp::InitInstance()
{
       AfxEnableControlContainer();
    ::CoInitialize(NULL);  
    …….
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    ::CoUninitialize();
    return FALSE;
}
  
 
 
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               hr=m_pConnection.CreateInstance("ADODB.Connection"); //³õʼ»¯Á¬½Ó×Ö·û¼¯
             
              if(SUCCEEDED(hr))
                 {
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