> I would like my application to have only one instance of it running at a > time. However I am unsure how to implement this. > If the user opens another instance the contents of what it opened should go > to the already opened instance. > As an example, I would put emacs. > > How would I go about coding this? Pipes? Sockets? None of the above.
[Reposting this response: something weird is going on - I replied to this from my phone, on the 16th, but it has not appeared... Wonder if I'm being bounced for some reason?... Oh, in fact, a few posts seem to be missing... Maybe the forum doesn't like posts from my phone? Anyway, here's what I said... FWIW!] Hi Gonzalo, I used named pipes to do this, since they work ok on WIN32 as well as *nix & OSX. My app tests for the presence of the named pipe on launch; if not found it launches a full instance & creates the pipe... If found, a little helper function just writes the new file instance onto the pipe then terminates. The main app "monitors" the incoming pipe for actions, albeit as a low priority background thread. Seems to work ok, but was a bit of messing about with platform specific code to get the pipes to work "transparently" across platforms. There's probably a better way though! _______________________________________________ fltk mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk
