onActivate
fun onActivate(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>(source)
Emitted to when the drop down is activated.
The ::activate signal on GtkDropDown is an action signal and emitting it causes the drop down to pop up its dropdown.
Since
4.6
Parameters
connectFlags
a combination of ConnectFlags
handler
the Callback to connect