Asynchronously look up a certificate by its handle in the database. See TlsDatabase.lookupCertificateForHandle for more information.
a certificate handle
used to interact with the user if necessary
Flags which affect the lookup.
a gio.Cancellable, or NULL
callback to call when the operation completes
the data to pass to the callback function
2.30
Asynchronously look up a certificate by its handle in the database. See TlsDatabase.lookupCertificateForHandle for more information.