You can set a window's default size with:
<?php $window->set_default_size($width, $height); ?>
And to set a window's initial position:
<?php $window->set_position($position); ?>
Where $position can be 'center' (center of screen), 'mouse' (under the
cursor), or 'none' (let the window manager place it).
If you want to make window respond to resizing in a certain way, you have to
set its policy.
<?php $window->set_policy($allow_shrink, $allow_grow, $auto_shrink); ?>
While each argument is a boolean, there are only two useful combinations of
them: one to allow the window to be resized by a user, and one to disallow
resizing.
<?php
$window->set_policy(false, true, false); // allow user resizing
$window->set_policy(false, false, true); // disallow user resizing
?>
