Asynchronously invokes the <link linkend="gdbus-method-org-freedesktop-GeoClue2-Client.
Start">Start
</link> D-Bus method on this. When the operation is finished,
callback
will be invoked in the thread-default main loop of the thread you are calling this method from (see
push_thread_default). You can then call call_start.end to get the result of the
operation.
See call_start_sync for the synchronous, blocking version of this method.
this |
A ClientProxy. |
cancellable |
A Cancellable or null. |
callback |
A TaskReadyCallback to call when the request is satisfied or null. |
user_data |
User data to pass to |