Mono winforms app fullscreen in Ubuntu?

Question

Just wondering if there\'s a known way of getting a Mono System.Windows.Forms application to go fullscreen on Ubuntu/Gnome.

Mono is 2.4.2.3 Ubuntu is 9.10

Doing

Answer 1

YMMV. http://fixunix.com/xwindows/91585-how-make-xlib-based-window-full-screen.html

Answer 2

I have been suffered by this problem 2 days and finally i got the solution: click the 1st icon on left tool bar and search compizconfig program. Go to preference-> unity and you will see there is a tick for unity plugin on the left side. Remove that tick and you will see the top menu bar disappeared. Though this thread is very old but I still hope I can help anyone who gets this problem and seek for help.

Answer 3

_NET_WM_STATE_FULLSCREEN will just get rid of the borders. The GNOME panel will still appear.

According to the following post, the secret is to get rid of the minimum/maximum sizes so that the window manager does the resizing itself:

http://linux.derkeiler.com/Mailing-Lists/GNOME/2010-01/msg00035.html

Here is some documentation on the native spec:

http://standards.freedesktop.org/wm-spec/wm-spec-latest.html

http://www.x.org/docs/ICCCM/icccm.pdf

To talk directly to the X Window System you have to pinvoke into XLib. In order to send something like _NET_WM_STATE_FULLSCREEN you have to have a pointer to the window and also to the display.

I am not sure how to find the display but I can help with a pointer to the window. When running on X, the property Form.Handle should be a pointer to the X window.

Answer 4

The following worked:

(Inspiration was taken from here: https://bugzilla.xamarin.com/show_bug.cgi?id=40997)

1) sudo apt-get install wmctrl

2) In your code:

Form form = new MainWindow();
form.FormBorderStyle = FormBorderStyle.None;
form.WindowState = FormWindowState.Maximized;

form.Load += (s, e) => {
    Process process = new Process {
        StartInfo = new ProcessStartInfo {
            FileName = "wmctrl",
            Arguments = $"-r :ACTIVE: -b add,fullscreen",
            CreateNoWindow = true
        }
    };
    process.Start();
    process.WaitForExit();
};

Application.Run(form);