Returns whether the input focus is within this GtkWindow. For real toplevel windows, this is identical to gtk_window_is_active(), but for embedded windows, like #GtkPlug, the results will differ.
%TRUE if the input focus is within this GtkWindow
2.4
See Implementation
Returns whether the input focus is within this GtkWindow. For real toplevel windows, this is identical to gtk_window_is_active(), but for embedded windows, like #GtkPlug, the results will differ.