The TypeMapper class and related interfaces provide for converting any Java type used as an argument, return value, or structure member to be converted to or from a native type. The example Win32 API interfaces use a type mapper to convert Java boolean into the Win32 BOOL type. A TypeMapper instance is passed as the value for the TYPE_MAPPER key in the options map passed to Native.load.
Alternatively, user-defined types may implement the NativeMapped interface, which determines conversion to and from native types on a class-by-class basis.
You may also customize the mapping of Java method names to the corresponding native function name. The StdCallFunctionMapper is one implementation which automatically generates stdcall-decorated function names from a Java interface method signature. The mapper should be passed as the value for the OPTION_FUNCTION_MAPPER key in the options map passed to the Native.load call.