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TService::ParamCount is always zero?

Posted on 2013-06-16
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Last Modified: 2013-06-17
I have written a service application in Borland C++ builder 5 and wish to pass a parameter on the command line when the service application is installed (not when it is started). I have tested this by entering the following onstallation command :
 myservice /install  param1

The following code is my constructor for the service application and always indicates that the ParamCount has a value of zero, even when passing a parameter after the /install parameter when installing the service.

Is there any way to pass a parameter on the command line when installing a service application ?

__fastcall T_2WSOPDSService1::T_2WSOPDSService1(TComponent* Owner)
      : TService(Owner)
{
    int pcount;
    AnsiString s;

    pcount = ParamCount;
    s.sprintf("ParamCount on installation was %d",pcount);
    LogMessage(s,EVENTLOG_INFORMATION_TYPE,0,0);


    dbsconnected = false;
    update = NULL;
    return;
}
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Question by:alcindor
2 Comments
 
LVL 25

Accepted Solution

by:
chaau earned 2000 total points
ID: 39251995
Just a small note. The install parameter will be processed by the application when it runs in "Application" mode, not as a service mode. It will be handled by your "main" entry point.
You would probably need to provide us with more code in order to help. Please upload here the main program entry point where you handle the "/install" command line parameter
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Author Comment

by:alcindor
ID: 39253037
I don't handle the "/install" command line parameter myself, this is handled by a built-in handler provided by the Borland compiler when making a service application.
However, I managed to extract the command line parameters from the command line by using the code in WinMain as follows. Thanks for your help.

AnsiString s_main; // added this variable to hold the command line
//---------------------------------------------------------------------------
WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR s, int)
{

try
{
                   s_main = s; // s_main is referenced in the service application constuctor
      Application->Initialize();
      Application->CreateForm(__classid(T_2WSOPDSService1), &_2WSOPDSService1);
                  Application->Run();
}
catch (Exception &exception)
{
      Sysutils::ShowException(&exception, Sysutils::ExceptAddr());
}
      return 0;
}
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