Usually with this sort of thing I'd disable the window containing the
button, eg

      $win->disable();

If $win is the window with the button in.  You might also want to consider
making the second window a dialogbox and setting its parent to the first
window.  From memory this stops the second window having an icon appear in
the task bar.

Kev.



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Anyone know how I can PREVENT a window from appearing more than once... for
example: if I click on a button
that displays a window....while that window is open, any other attempts to
display the same window is ignored; including via menu.

:)








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