[ 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 <link linkend="g-main-context-push-thread-default">
thread-default main loop</link> 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 null. |
| callback |
A TaskReadyCallback to call when the request is satisfied or null. |
| user_data |
User data to pass to |