How to build a COM to Send and Receive Multi File by ATL

CodeWorrior April 24,2002.

Introduction

The COM can send and receive Multi file from Server .

The project code has been built with VC++ 6.0 SP5 / ATL3.0 and tested on Win2K Professional.

Getting started

1.Create an ATL Project by useing ATL COM AppWizard ,name it as what you want,

       at the step 1 :choose Support MFC;

2.Insert New ATL object by menu/toolbar,select Control -->lite Control-->

              names:   short name-->TestThread

            attributes:   support ISupportErrorInfo

                       support Connection_Points

                       interface -->Dual

                             thread model -->Apartment

                Misc:  inVisible at runtime

      then click ok;

3. At classview ,right click CTestThread select Add Method,

          add three method and the .idl file can found code like following lines

                interface ITestThread : IDispatch

       {

              [id(1), helpstring("MultiThread Download File From Server")] HRESULT DownFile([in]BSTR bstrString);

              [id(2), helpstring("Show About")] HRESULT About();

              [id(3), helpstring("method SendFile")] HRESULT SendFile([in]BSTR bstrstring,[in]BSTR bstrFileString);

       }

4.In TestThread.cpp   add following codes:    

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