🚀 go-pugleaf

"Duane Hebert" <duane@nitrex.com> wrote in message
news:3edcdbb6@newsgroups.borland.com...

> when the application terminates, in the dtor of the
> main form we kill the watchdog.  When there is a
> log off, it doesn't seem like application->terminate()
> is called

It is not.  However, your form's destructor should still execute properly.
All Application->Terminate() does is calls PostQuitMessage() which posts a
WM_QUIT message to the message queue, nothing else.  There are other system
messages associated with system logoff/shutdown that the VCL does respond to
as well, so it can still clean up after itself properly.

> I would also like to know if there is some scheme
> to make an app run as a service, even though it's
> a GUI app.

Not natively, no.  Service applications have additional requirements that
they must perform during startup.  You can't simply turn a GUI app into a
service, services are a completely different beast.  That is why there is a
separate "Service Application" wizard when you go into the IDE's "File |
New" dialog.  There is, however, a Microsoft utility called SRVANY that can
run applications under the context of a service, but I do not recommend it
for GUI apps, it is geared towards console apps instead, as services are not
GUI apps to begin with.

> This is actually a control application and it
> needs to run without interruption if possible.

Then I suggest you re-write the core of the application into a true non-GUI
service app, and then move just the GUI portions into a separate app that
can communicate with the core service via IPC (inter-process communication,
such as TCP/IP sockets, named pipes, RPC, etc.) when needed.


Gambit