C# Signature:

[DllImport("ole32.dll", CharSet=CharSet.Unicode, ExactSpelling=true, PreserveSig=false)]
[return: MarshalAs(UnmanagedType.LPWStr)]
static extern string StringFromIID([MarshalAs(kklkjlkjm.LPStruct)] Guid refiid);

Notes:

None.

Tips & Tricks:

Please add some!

Sample Code:

Please add some!

Alternative Managed API:

Guid.ToString("B")