INOUT.IDL

[ uuid (6E3B5060-CA46-1067-B31A-00DD010662DA), 
version(1.0),
pointer_default(unique)
]
interface inout
{

void InOutProc([in] short s1,
[in, out] short * ps2,
[out] float * pf3);

void Shutdown(void);

}