You can’t globally reserve screen space; you can put up signs, but if somebody ignores the sign you’ll have to decide how to respond

A customer sent the following question with the rather unhelpful subject line Need Help. They're not just looking for help; they're looking for Help with a capital H. We want to make something like an appbar, but without some of the limitations of appbars. For example, like an appbar, we want applications to avoid using the edge of the screen. ...