Set a hint for the window manager, requesting that the titlebar
should be hidden when the window is maximized.
Note that this property is automatically updated by GTK+, so this
function should only be used by applications which do not use GTK+
to create toplevel windows.
Set a hint for the window manager, requesting that the titlebar should be hidden when the window is maximized. Note that this property is automatically updated by GTK+, so this function should only be used by applications which do not use GTK+ to create toplevel windows.