Warning
GtkActionGroup::disconnect-proxy is deprecated and should not be used in newly-written code. 3.10
The ::disconnect-proxy signal is emitted after disconnecting a proxy
from an action in the group.
GtkUIManager proxies the signal and provides global notification
just before any action is connected to a proxy, which is probably more
convenient to use.
Since 2.4
Warning GtkActionGroup::disconnect-proxy is deprecated and should not be used in newly-written code. 3.10 The ::disconnect-proxy signal is emitted after disconnecting a proxy from an action in the group. GtkUIManager proxies the signal and provides global notification just before any action is connected to a proxy, which is probably more convenient to use. Since 2.4