using NTwain.Data; using NTwain.Internals; namespace NTwain.Triplets { sealed class Callback2 : BaseTriplet { internal Callback2(TwainSession session) : base(session) { } public ReturnCode RegisterCallback(ref TW_CALLBACK2 callback) { return NativeMethods.DsmWin32(Session.Config.AppWin32, Session.CurrentSource.Identity, DataGroups.Control, DataArgumentType.Callback2, Message.RegisterCallback, ref callback); } } }