Knowledge Base Nr: 00064 Create_COM_Object_via_DCOM.cpp - http://www.swe-kaiser.de

Win32: example of creating a COM object via DCOM
(the COM object must be configured on server machine)

  
//#include <lmcons.h> ???

#import "MyObject.tlb" no_namespace named_guids

//lpszServer examples: "192.168.32.17", "Pentium2"
HRESULT CMyClass::StartDCOMconnection(LPCSTR lpszServer
                                   , IMyObjectDCOM* pMyObject
                                   , BOOL* bSuccess)
{
  HRESULT hr;
  pMyObject = NULL;
  *bSuccess = FALSE;

  try
  {
    MULTI_QI    mq;
    COSERVERINFO csi, *pcsi=NULL;
    WCHAR wsz [MAX_PATH];

    //machine-name for DCOM
    MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, lpszServer, -1, wsz, MAX_PATH);
    memset(&csi, 0, sizeof(COSERVERINFO));
    csi.pwszName = wsz;
    pcsi = &csi;

    //create a remote instance of the object on the 'szServerName' machine
    mq.pIID = &IID_IDCOM;
    mq.pItf = NULL;
    mq.hr = S_OK;
    hr = CoCreateInstanceEx(__uuidof(MyObject), NULL, CLSCTX_SERVER, pcsi, 1, &mq);
    if (FAILED(hr))
      _com_issue_error(hr);

    pMyObject = (IMyObjectDCOM*) mq.pItf;

    *bSuccess = TRUE;
  }
  catch (_com_error& /* e */)
  {
    ASSERT(FALSE);
  }

  return hr;
}