How do I get a list of checked out items with the Core Service?

Question

I would like to get a list of all checked-out items in the system with the Core Service. I have a feeling I need to use:

 GetSystemWideList(filter)

But, I can't find a filter to give me the list. What filter would I need?

Update: Here is the complete working solution

// get all checked out items from core service
string binding = "netTcp_2011";
SessionAwareCoreServiceClient client = new SessionAwareCoreServiceClient(binding);

RepositoryLocalObjectsFilterData filter = new RepositoryLocalObjectsFilterData();
XElement checkedOutItems = client.GetSystemWideListXml(filter);

Answer 1

You need RepositoryLocalObjectsFilterData, this filter will behave differently if you specify properties, like ItemIds, but without setting any properties you will get all checked out items in the system (provided you have enough permissions.)