fullscreen application

How can I create a fullscreen SDI application

[Dave Lorde]

A window is fullscreen when its client area occupies the entire screen. You need to size the window so that the non-client area is outside the screen bounds (this means the top left of the window is in negative coordinate territory).

Always-on-top appbars should take themselves out of the topmost z-order so that they do not cover the fullscreen window.