[ Version ( since = "3.10" ) ]
public async bool add_timezone (string tzobject, Cancellable? cancellable) throws Error
Asynchronously adds the timezone described by tzobject to this.
When the operation is finished, callback will be called. You can then call add_timezone.end to
get the result of the operation.
| this |
an CalBackend |
| tzobject |
an iCalendar VTIMEZONE string |
| cancellable |
optional Cancellable object, or null |
| callback |
a TaskReadyCallback to call when the request is satisfied |
| user_data |
data to pass to the callback function |