Have you tried using something like in the "help" module: 
  $mainWin->raise;

[download]
and something like this in each of the "non-help" modules: 
  $mainWin->lower;

[download]
I'm not totally sure that will work in all cases, but it's worth a try.

If it was my app, I'd have the help window pop up only at the user's request. Put a "Help" button on one or more of the other windows. When all the "non-help" windows are up, and the user happens to push this button, the help window will certainly be on top -- but if someone uses this app more than a few times, they probably won't need or want to look at the help window every time they start it up.

In reply to Re: Tk MainWindow from module Foo on to appear on top by graff
in thread Tk MainWindow from module Foo on to appear on top by aplonis

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