The ::pre-activate signal is emitted just before the @action in the @action_group is activated
This is intended for #GtkUIManager to proxy the signal and provide global notification just before any action is activated.
2.4
See Implementation
The ::pre-activate signal is emitted just before the @action in the @action_group is activated
This is intended for #GtkUIManager to proxy the signal and provide global notification just before any action is activated.