Warning
GtkUIManager::connect-proxy is deprecated and should not be used in newly-written code. 3.10
The ::connect-proxy signal is emitted after connecting a proxy to
an action in the group.
This is intended for simple customizations for which a custom action
class would be too clumsy, e.g. showing tooltips for menuitems in the
statusbar.
Since 2.4
Warning GtkUIManager::connect-proxy is deprecated and should not be used in newly-written code. 3.10 The ::connect-proxy signal is emitted after connecting a proxy to an action in the group. This is intended for simple customizations for which a custom action class would be too clumsy, e.g. showing tooltips for menuitems in the statusbar. Since 2.4