Is there a property that is the size of the window without the size of the status bar?

I am dynamically creating a set of controls that I want to occupy the entire screen (but only the visible part), but when I base them on the main `window.Frame` or `window.Bounds`, the top buttons are drawn under the status bar.

I am quite new to this world, so I am probably missing something obvious. I could certainly do the math manually (20px, from what I read elsewhere) or I could [hide it](https://stackoverflow.com/questions/4067961/monotouch-set-status-bar-hidden-api-change-secure), but I was hoping there was a way to do it with something built in to the framework.