choose

Description:

public async int choose (Window? parent, Cancellable? cancellable) throws Error

Shows the alert to the user.

It is ok to pass `NULL` for the callback if the alert does not have more than one button. A simpler API for this case is [ method@Gtk.AlertDialog.show].

Parameters:

this	an alert dialog
parent	the parent window
cancellable	a cancellable to cancel the operation
callback	a callback to call when the operation is complete
user_data	data to pass to `callback`