public static int SetContextAttributes(SSPIInterface SecModule, SafeDeleteContext securityContext, ContextAttribute contextAttribute, object value) { GlobalLog.Enter("SetContextAttributes", contextAttribute.ToString()); byte[] nativeBuffer; switch (contextAttribute) { case ContextAttribute.UiInfo: Debug.Assert(value is IntPtr, "Type Mismatch"); IntPtr hwnd = (IntPtr)value; // A window handle nativeBuffer = new byte[IntPtr.Size]; if (IntPtr.Size == 4) // 32bit { int ptr = hwnd.ToInt32(); nativeBuffer[0] = (byte)(ptr); nativeBuffer[1] = (byte)(ptr >> 8); nativeBuffer[2] = (byte)(ptr >> 16); nativeBuffer[3] = (byte)(ptr >> 24); } else // 64bit { long ptr = hwnd.ToInt64(); nativeBuffer[0] = (byte)(ptr); nativeBuffer[1] = (byte)(ptr >> 8); nativeBuffer[2] = (byte)(ptr >> 16); nativeBuffer[3] = (byte)(ptr >> 24); nativeBuffer[4] = (byte)(ptr >> 32); nativeBuffer[5] = (byte)(ptr >> 40); nativeBuffer[6] = (byte)(ptr >> 48); nativeBuffer[7] = (byte)(ptr >> 56); } break; default: throw new ArgumentException(SR.GetString(SR.net_invalid_enum, "ContextAttribute"), "contextAttribute"); } return(SecModule.SetContextAttributes(securityContext, contextAttribute, nativeBuffer)); }