choose
open fun choose(cancellable: <Error class: unknown class>? = null, callback: <Error class: unknown class>?)(source)
This function shows @self to the user.
The @callback will be called when the alert is dismissed. It should call method@MessageDialog.choose_finish to obtain the result.
Since
1.3
Parameters
cancellable
a GCancellable to cancel the operation
callback
a callback to call when the operation is complete