Look: this is not an issue. IPC::Open3 works fine on Windows. What does not work on Windows is a non-blocking read on file handles and any kind of solution which boils down to 'timeout' or 'can read' with respect to filehandles. The thing you have to do is to create threads to perform blocking reads on filehandles. If this is done in a Tk application you should avoid joining your threads before you quit the main loop unless you want to crash miserably. If you adhere to these precautions you can write a multi threaded process piping Tk application under Windows in a safe way. I have learned the lessons well because I have a quite complicated Tk application which monitors and sends command to heavy external processes. The issue here is with code pages however this I've already resolved in a separate node.

In reply to Re^4: Windows cmd.exe output -> Tk text widget? by chessgui
in thread Windows cmd.exe output -> Tk text widget? by chessgui

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.