varaint array in c# return from COM RSS

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  apraba83@yah...

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  14 Posts

  varaint array in c# return from COM

  Apr 22, 2008 05:50 AM|LINK

  hi in my application COM Server ( VC++6.0) is Server and c# is Client( asp.net)

  I have to call one method that contains arrays strig byte values etc....

  ExecMethod(object attr, int id)             in this

  object contains ( byte[], string,string[],int) i have make them into Object

    //////////////////////////// Calling ExecWatchDog() ////////////////////////
  
  
              int cliCallbackID = callbackId;
              byte reqType = 2;
              //string[] destList = new string[] { "Taro_Toshiba_RemoteAETitle" };
              string[] destList = modalitySet.GetWatchDogDestList();
  
              string userName = "Taro_Toshiba";
  
              int requestID_o = -1;
  
              Object[] attrWatchDog = { cliCallbackID, reqType, destList, userName };
  
              storage.ExecWatchDog(cliCallbackID, attrWatchDog, out requestID_o);
              requestID = requestID_o;

   

  then COMServer access excecute my method and notifies to the client.

  the COM Server uses the variant datatype...it uses safearray etc.... variant array have ( byte[], string( BSTR), safearray,int) etc....
  

  in client client coding i want to extract the variant datatype and use the values....

  i have used the Object keyword to extract that variant array but it returns only one value ie very first value... int that variant array...

   c# client side retieval code from COM Server( Sample)
  

   public override void NotifyDicomStorage(object vReturnAttributes_i, int IRequestID_i)
      {
  
          object[] attr = (object[]) vReturnAttributes_i;
  

     } 

   

  vReturnAttributes gives only one value... true.... 

   

  i donno how to use that variant datatype return from the COMServer vc++6.0....

  anybody help me for this issue....