Silk4J supports a subset of the XPath query language. For additional information about XPath, see http://www.w3.org/TR/xpath20/.
Additionally, some XPath expressions are context sensitive. For example, myWindow.find(xPath) makes myWindow the current context.
Dynamic object recognition uses a Find or FindAll functions to identify an object in a test case. Silk Test Classic provides an alternative to using Find or FindAll functions in scripts that use XPath queries. You can use locator keywords in an INC file to create scripts that use dynamic object recognition and window declarations.