all true, but platform difference should be minimal, and somewhat platform-specific.
in reply to Re^2: Very strange Scrollbar behavior in Win32 Perl/Tk version 804.027
in thread Very strange Scrollbar behavior in Win32 Perl/Tk version 804.027
When speaking on non-platform specific GUI element, it should behave everywhere consistently, that is why first attention should be paid to logic and widget, and only afterwards we should consider whether misbehaviour is $^O-specific!
BTW I've never thought of Perl/Tk's fileevent as non-working on Windows
Did you encountered difficulties with it?