Yes, but not just any old object -- THE object the handle was associated with. Sorry, but I would have thought this was obvious given the context of the question. :-/

:) Well, sorry, it wasn't obvious to me -- Win32::GUI simply doesn't do that, its not Tk.pm or Wx.pm or some such

There is the undocumented Win32::GUI::GetWindowObject($handle) but it doesn't work with menus

foreget this update: http://search.cpan.org/grep?cpanid=ROBERTMAY&release=Win32-GUI-1.06&string=hmenu&i=1&n=1&C=0 reveals GetMenuFromID

I guess you could remove the IsWindow check from GetWindowObject, recompile Win32::GUI, and try that ... but if this doesn't make you rethink choosing Win32::GUI :)