[C#/Java]
event GSSReleaseCredMethod release_cred;
delegate int GSSReleaseCredMethod(ref int minor_status, ref IntPtr cred_handle);
[VB.NET]
Event release_cred As GSSReleaseCredMethod
Delegate Function GSSReleaseCredMethod(ByRef minor_status As Integer, ByRef cred_handle As IntPtr) As Integer