Midas in WebModule problem

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1 total messages Started by oscarlu Fri, 03 Dec 1999 00:00

#1356

Author: oscarlu
Date: Fri, 03 Dec 1999 00:00

37 lines
1875 bytes

Hi
I need your hepl about this.
I use TDCOMServer and TClientDataSet in Web Server Application.

(1) When the Midas component put on normal Form, I never call CoInitialize()
function then it can work.
      When I run three applications on the same time, the Application server
create one DCOM server only.

    DCOMConnection1->ComputerName = "AppServer";
    DCOMConnection1->ServerName = "QueryServer.Query";
    DCOMConnection1->ServerGUID = "{1F41A5B3-7612-11D3-9299-00105A75C09B}";
    DCOMConnection1->Connected = true;

(2) When the Midas component put on WebModule, it must call CoInitialize()
function then it can work.
      When I run three applications on the same time, the Aapplication
server create three DCOM servers.

    if ( CoInitialize(NULL) == S_OK )
    {
    DCOMConnection1->ComputerName = "AppServer";
    DCOMConnection1->ServerName = "QueryServer.Query";
    DCOMConnection1->ServerGUID = "{1F41A5B3-7612-11D3-9299-00105A75C09B}";
    DCOMConnection1->Connected = true;
    ....
    CoUninitialize();
    }


The problems are :
(1) Why I must call CoInitialize() function in WebModule ?
(2) Why WebModule cann't raise the same DCOM server ?
(3) Why TClinetDataSet get 10 records only ?

Is any way can let WebModule raise the same DCOM server ?
Is Midas component cann't use in WebModule ?

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