[gtkmm] Spawing a process and being notified of its termination

["Pierre Bacquet" <Pierre Bacquet anite com>]

Hi,

I am trying to understand of to fork/exec a process
and being notified of its termination by a call-back (CB)
mechanism.

Since my future software is supposed to run on several
platforms including Windows, I've started making a small
example on the platform I'm less confident on, i.e. Windows.

Here is part of my sample code :
---------------------------------------------------------------------------
void mainWin::on_runIt_pressed()
{  
    string			wDir(".");
    int			pid;
    vector<string>	argv;
    string			cmd("C:\\Win2000\\regedit.exe");
    Glib::SpawnFlags    flags;

    argv.push_back(cmd);
    try
    {
	Glib::spawn_async(wDir, argv, flags, SigC::slot(*this, &mainWin::on_child_termination), &pid);
    }
    catch (Glib::Exception &e)
    {
	msgField->set_text(e.what());
    }
}

void mainWin::on_child_termination()
{  
    msgField->set_text("Finito !!");
}
---------------------------------------------------------------------------

on_runIt_pressed() is triggered when I clik on a button surprisingly
named "Run It".

I expect here that the on_child_termination() CB is called when the
spawned child terminates, but I get the "Finito !!" message as soon as
the Regedit process is launched and not when I terminate it (closing its
window).

I must admint that the documentation on Glib::spawn_xxxx is quite light
and I would like to know how I can be notified of the death of the child
process.

TIA,

Pierre.