mx.core.Window has properties 'maximizable' &
'minimizable', but there doesn't seem to be any 'closable'
property. In my application I'm creating another window (apart from
the main application window) that needs to be open the whole time
the application is running. If I can't prevent the user from
closing the window, then I'll have to rig up some code to
automatically re-open it if the user closes it. I'm hoping there's
a way to prevent the user from closing the window in the first