Marks menu as frozen.
After the menu is frozen, it is an error to attempt to make any
changes to it. In effect this means that the GMenu API must no
longer be used.
This function causes g_menu_model_is_mutable() to begin returning
FALSE, which has some positive performance implications.
Since 2.32
Marks menu as frozen. After the menu is frozen, it is an error to attempt to make any changes to it. In effect this means that the GMenu API must no longer be used. This function causes g_menu_model_is_mutable() to begin returning FALSE, which has some positive performance implications. Since 2.32