[ Version ( since = "1.0" ) ]
public async bool cancel (Cancellable? cancellable) throws Error
Asynchronously cancels an ongoing USSD session, either mobile or network initiated.
When the operation is finished, callback will be invoked in the thread-default main loop of the thread you are
calling this method from. You can then call cancel.end to get the result of the operation.
See cancel_sync for the synchronous, blocking version of this method.
| this | |
| cancellable |
A Cancellable or |
| callback |
A TaskReadyCallback to call when the request is satisfied or |
| user_data |
User data to pass to |