function onSample()
{
var factory = shell.factory;
var rect = (factory) ? factory.createRect(10, 10, 800, 600) : null;
if (rect)
{
shell.print("x = " + rect.x);
shell.print("y = " + rect.y);
shell.print("w = " + rect.width);
shell.print("h = " + rect.height);
}
}