Setting window position and size

["Jeffrey Ratcliffe" <jeffrey ratcliffe gmail com>]

This is slightly off topic, but...

A couple of months ago, Debian started packaging my (Gtk2-Perl) scanning app.

The app saves and restores its window position, size and whether it is
maximised or not between sessions. A Debian developer has requested
that this be left to the window manager. What is the Right Way here?
I'm tempted to add an option whether to restore window settings.

Interested in opinions

Jeff