Asynchronously opens file for appending.
For more details, see g_file_append_to() which is the synchronous version of this call.
When the operation is finished, callback will be called. You can then call g_file_append_to_finish() to get the result of the operation.
a set of GFileCreateFlags
the [I/O priority][io-priority] of the request
optional gio.Cancellable object, NULL to ignore
a GAsyncReadyCallback to call when the request is satisfied
the data to pass to callback function
Asynchronously opens file for appending.
For more details, see g_file_append_to() which is the synchronous version of this call.
When the operation is finished, callback will be called. You can then call g_file_append_to_finish() to get the result of the operation.