Main.m

function Main(varargin)
try
    host = varargin{1};
    port = varargin{2};
    user = varargin{3};
    pass = varargin{4};
catch ME
    Usage
end

client = omero.client(host, port);
factory = client.createSession(user, pass);
projects = AllProjects(factory.getQueryService(), user);
PrintProjects(projects);
client.closeSession();