[Kde-kiosk] Disallowing Multiple Opening of a Window

[Adrian Snyman]

On Monday 26 July 2004 23:14, Waldo Bastian wrote:
> On Monday 26 July 2004 20:47, steve f wrote:
> > Is there something within KDe that will prevent me from starting more
> > than one instance of an application?
> >
> > I have an XTerm session that begins when you click an icon. Problem is, I
> > can't have multiple windows opening of this application because every one
> > you start takes another tty session on the server.  Is there anything in
> > KDE that will limit to one running session of an application when the
> > icon is clicked?
>
> No, not in general, but you could let the button run a small shell script
> that creates a file on startup, runs the xterm and deletes the file again
> when the xterm exits. At the start of the script you can then check if the
> file exists already and if so return directly without doing anything.
>

Yep .. a basic locking mechanism ..
You can touch a file in /var/lock ...
Only problem is that should the xterm / whatever terminate abnormally, you 
would have to delete the lockfile manually ..


-- 
Regards,
Adrian Snyman
Tel: (083)647-5299

/* Beat Me, Whip Me, Make me use Windows !! */

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