$main_window.signal_connect('configure-event') {
msg 3, "configure: pos: #{$main_window.window.root_origin.inspect} size: #{$main_window.window.size.inspect}"
x, y = $main_window.window.root_origin
$main_window.signal_connect('configure-event') {
msg 3, "configure: pos: #{$main_window.window.root_origin.inspect} size: #{$main_window.window.size.inspect}"
x, y = $main_window.window.root_origin