Function gtk4_sys::gtk_event_controller_focus_is_focus 
source · pub unsafe extern "C" fn gtk_event_controller_focus_is_focus(
    self_: *mut GtkEventControllerFocus
) -> gbooleanpub unsafe extern "C" fn gtk_event_controller_focus_is_focus(
    self_: *mut GtkEventControllerFocus
) -> gboolean