Yes, from what I gather, the problem with Show is that the check to make sure that it places popups in viewable area fails because the test doesn't realize that there is a left monitor. This is somewhat odd considering that you can use the geometry command to put the main window there.

Indeed, I have come up with a work around. It's tacky, but it works. Rather than fight Show's limitation, I use it as is, letting it place the popup incorrectly. Then I use a geometry command to move the popup to where it should be. Since your code stops running after the Show, I came up with the following way to accomplish this. Immediately prior to the Show I added the following.

$mw->after(2, \&Popup_Position_Fix, $popup, $popover);

The Popup_Position_Fix routine does some calculating then executes a geometry command on the popup. As I said, tacky, but it works. :)

In reply to Re^2: Tk multiple monitor problem by JohnRS
in thread Tk multiple monitor problem by JohnRS

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.