Thanks! I had read over the bug report, but couldn't figure out how to apply it in my situation. I am not directly posting the popup, it is bound to the button-3 callback event...

$winInfoRef->{HLIST}->bind('<Button-3>' => sub{$winInfoRef->{MENU}->Po
+pup(-popover=>'cursor',-popanchor=>'ne')}
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so I think the suggested workaround is to add your Popup Subroutine and change my bind to this?

$winInfoRef->{HLIST}->bind('<Button-3>' => sub{Popup($winInfoRef->{MEN
+U},-popover=>'cursor',-popanchor=>'ne')}
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Forgive my weak OO knowledge... Does adding the code for the Popup subroutine replace the Tk Popup routine ?

Thank You! This worked a charm for me... Since I was using popup menus in more than one place, I included the code from the kind Anonymous Monk (it is copied so it can be downloaded below) in a file called MenuPopup.pm, and added:

require MenuPopup;
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in my top level code

In the bind method for my popup menu, I used:

  $winInfoRef->{HLIST}->bind('<Button-3>' => sub{
                   MenuPopup($winInfoRef->{MENU},
                     -popover=>"cursor",-popanchor=>'ne')
                 });
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I thought I would be able to use:

 $winInfoRef->{HLIST}->bind('<Button-3>' => sub{
                   $winInfoRef->{MENU}->MenuPopup(
                     -popover=>"cursor",-popanchor=>'ne');
                 });
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But I got an error saying the Tk::MenuPopup could not be found (I'm sure there would be a way to fix that, but I spent a lot of time getting to this solution and I've got to move on)

Here is the code with some comments to help me remember how to use it:

#Note this can be used to in place of the Popup Method found in TK/Wm.
+pm
#
#it fixes a problem where if you ever used a popup menu, and then clos
+ed the main
#window that posted the menu, you would get a TK error saying somethin
+g like:
#    Tk::Error: window ".toplevel.frame.hlist.menu" was deleted before
+ its  visibility changed at
# C:/Perl/site/lib/Tk/Widget.pm line 1000.
# Tk callback for tkwait
# It doesn't allow you to directly use as a method like $wid->MenuPopu
+p(-opt1=>'opt',-opt2=>'blah'),
# instead you call it and pass it the widget like this: MenuPopup($wid
+,-opt1=>'opt',-opt2=>'blah);
# When you use bind to enable the popup, use it like this:
 # $widget->bind('<Button-3>' => sub{
 #                   MenuPopup($winInfoRef->{MENU},-popover=>"cursor",
+-popanchor=>'ne');
#                 }
#                );
#The  fix was commenting out 
#$w->waitVisibility; ## Bug #28238 for Tk: Tk::Menu->Popup never retur
+ns (Win32)
#I got this gem from the perlMonks after reaching out on http://www.pe
+rlmonks.org/?node_id=1123733

sub MenuPopup
{
  package Tk::Wm;
  my $w = shift;
  $w->configure(@_) if @_;
  $w->idletasks;
  my ($mw,$mh) = ($w->reqwidth,$w->reqheight);
  my ($rx,$ry,$rw,$rh) = (0,0,0,0);
  my $base    = $w->cget('-popover');
  my $outside = 0;
  if (defined $base)
    {
      if ($base eq 'cursor')
    {
      ($rx,$ry) = $w->pointerxy;
    }
      else
    {
      $rx = $base->rootx;
      $ry = $base->rooty;
      $rw = $base->Width;
      $rh = $base->Height;
    }
    }
  else
    {
      my $sc = ($w->parent) ? $w->parent->toplevel : $w;
      $rx = -$sc->vrootx;
      $ry = -$sc->vrooty;
      $rw = $w->screenwidth;
      $rh = $w->screenheight;
    }
  my ($X,$Y) = AnchorAdjust($w->cget('-overanchor'),$rx,$ry,$rw,$rh);
  ($X,$Y)    = AnchorAdjust($w->cget('-popanchor'),$X,$Y,-$mw,-$mh);
  # adjust to not cross screen borders
  if ($X < 0) { $X = 0 }
  if ($Y < 0) { $Y = 0 }
  if ($mw > $w->screenwidth)  { $X = 0 }
  if ($mh > $w->screenheight) { $Y = 0 }
  $w->Post($X,$Y);
  #$w->waitVisibility; ## Bug #28238 for Tk: Tk::Menu->Popup never ret
+urns (Win32)
  $w->update;
}

#needed for require
return 1;
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