Hi.

After a long while away from Perl, I want to do a simple job with Perl Tk on a laptop with Xubuntu 11.04 installed.,

I used Cpan to update everything and install the Tk module, and all appeared to go OK.

Just to check that it all worked, I tried running the "Hello World" program shown in the O'Reilly book on page 10, however whilst it appeared to run without errors, nothing was displayed on the screen.

Running the program with the -w switch just showed a "Useless use of a constant in a void context" warning, which seems innocuous.

I'd be grateful for any help here, please!

Jim

In reply to Perl Tk on Xubuntu problem. by jimford

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.