When you're spawning a process within a program running a GUI, there's a few gotchas. You need to make sure the GUI keeps ticking and you probably need to communicate between the GUI and your extra process.

An elegant way of handling this is POE. It lets you hook into various GUI event loops (Gtk, perl/Tk, etc.). Check out this article on using POE with Gtk.

Another way of communicating between the GUI and the spawned process are watchers in the GUI, here's an article which uses an XML-defined GUI and Glib's add_watch method.

In reply to Re: How to spawn a process in background within Perl+GUI script by saintmike
in thread How to spawn a process in background within Perl+GUI script by vkon

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.