accelerator_set_default_mod_mask

function accelerator_set_default_mod_mask(default_mod_mask:Gdk.ModifierType):void {
    // Gjs wrapper for gtk_accelerator_set_default_mod_mask()
}

Sets the modifiers that will be considered significant for keyboard accelerators. The default mod mask is #GDK_CONTROL_MASK | #GDK_SHIFT_MASK | #GDK_MOD1_MASK | #GDK_SUPER_MASK | #GDK_HYPER_MASK | #GDK_META_MASK, that is, Control, Shift, Alt, Super, Hyper and Meta. Other modifiers will by default be ignored by Gtk.AccelGroup. You must include at least the three modifiers Control, Shift and Alt in any value you pass to this function.

The default mod mask should be changed on application startup, before using any accelerator groups.