Returns whether the input focus is within this GtkWindow. For real toplevel windows, this is identical to Window.isActive, but for embedded windows, like gtk.Plug, the results will differ.
TRUE if the input focus is within this GtkWindow
2.4
Returns whether the input focus is within this GtkWindow. For real toplevel windows, this is identical to Window.isActive, but for embedded windows, like gtk.Plug, the results will differ.