is provided, it will be set with the error and false is returned.
Completion.addProvider
bool addProvider(gtksource.completion_provider.CompletionProvider provider)Add a new #GtkSourceCompletionProvider to the completion object. This will add a reference provider, so make sure to unref your own copy when you no longer need it.
Parameters
provider | a #GtkSourceCompletionProvider. |
Returns
true if provider was successfully added, otherwise if error
Throws
[ErrorWrap]