File.queryDefaultHandlerAsync
void queryDefaultHandlerAsync(int ioPriority, gio.cancellable.Cancellable cancellable = null, gio.types.AsyncReadyCallback callback = null)Async version of gio.file.File.queryDefaultHandler.
Parameters
ioPriority | the I/O priority of the request |
cancellable | optional #GCancellable object, null to ignore |
callback | a #GAsyncReadyCallback to call when the request is done |