public static extern ReturnCode DsmWin32( [In, Out] TW_IDENTITY origin, [In, Out] TW_IDENTITY destination, DataGroups dg, DataArgumentType dat, Message msg, ref TW_CALLBACK2 data);
internal void RegisterCallback() { // TODO: support other platforms var callbackPtr = Marshal.GetFunctionPointerForDelegate(_callback32Delegate); // try new callback first var cb2 = new TW_CALLBACK2 { CallBackProc = callbackPtr }; var rc = DGControl.Callback2.RegisterCallback(ref cb2); if (rc == ReturnCode.Success) { Debug.WriteLine("Registed Callback2 success."); } else { var status = GetStatus(); Debug.WriteLine($"Register Callback2 failed with condition code: {status.ConditionCode}."); } if (rc != ReturnCode.Success) { // always register old callback var cb = new TW_CALLBACK { CallBackProc = callbackPtr }; rc = DGControl.Callback.RegisterCallback(ref cb); if (rc == ReturnCode.Success) { Debug.WriteLine("Registed Callback success."); } else { var status = GetStatus(); Debug.WriteLine($"Register Callback failed with {status.ConditionCode}."); } } }
public ReturnCode RegisterCallback(ref TW_CALLBACK2 callback2) { if (Is32Bit) { if (IsWin) { return(NativeMethods.DsmWin32(Session.Config.App32, Session.CurrentSource.Identity32, DataGroups.Control, DataArgumentType.Callback2, Message.RegisterCallback, ref callback2)); } if (IsLinux) { return(NativeMethods.DsmLinux32(Session.Config.App32, Session.CurrentSource.Identity32, DataGroups.Control, DataArgumentType.Callback2, Message.RegisterCallback, ref callback2)); } if (IsMac) { return(NativeMethods.DsmMac32(Session.Config.App32, Session.CurrentSource.Identity32, DataGroups.Control, DataArgumentType.Callback2, Message.RegisterCallback, ref callback2)); } } if (IsWin) { return(NativeMethods.DsmWin64(Session.Config.App32, Session.CurrentSource.Identity32, DataGroups.Control, DataArgumentType.Callback2, Message.RegisterCallback, ref callback2)); } if (IsLinux) { return(NativeMethods.DsmLinux64(Session.Config.App32, Session.CurrentSource.Identity32, DataGroups.Control, DataArgumentType.Callback2, Message.RegisterCallback, ref callback2)); } if (IsMac) { return(NativeMethods.DsmMac64(Session.Config.App32, Session.CurrentSource.Identity32, DataGroups.Control, DataArgumentType.Callback2, Message.RegisterCallback, ref callback2)); } return(ReturnCode.Failure); }
/// <summary> /// Convert the contents of a string to an callback2 structure... /// </summary> /// <param name="a_twcallback2">A TWAIN structure</param> /// <param name="a_szCallback2">A CSV string of the TWAIN structure</param> /// <returns>True if the conversion is successful</returns> public bool CsvToCallback2(ref TW_CALLBACK2 a_twcallback2, string a_szCallback2) { // Init stuff... a_twcallback2 = default(TW_CALLBACK2); // Build the string... try { string[] asz = CSV.Parse(a_szCallback2); // Grab the values... a_twcallback2.CallBackProc = (IntPtr)UInt64.Parse(asz[0]); a_twcallback2.RefCon = (UIntPtr)UInt64.Parse(asz[1]); a_twcallback2.Message = ushort.Parse(asz[2]); } catch { return (false); } // All done... return (true); }
/// <summary> /// Convert the contents of a callback2 to a string that we can show in /// our simple GUI... /// </summary> /// <param name="a_twcallback2">A TWAIN structure</param> /// <returns>A CSV string of the TWAIN structure</returns> public string Callback2ToCsv(TW_CALLBACK2 a_twcallback2) { try { CSV csv = new CSV(); csv.Add(a_twcallback2.CallBackProc.ToString()); csv.Add(a_twcallback2.RefCon.ToString()); csv.Add(a_twcallback2.Message.ToString()); return (csv.Get()); } catch { return ("***error***"); } }
/// <summary> /// Issue callback2 commands... /// </summary> /// <param name="a_dg">Data group</param> /// <param name="a_msg">Operation</param> /// <param name="a_twcallback2">Callback2 structure</param> /// <returns>TWAIN status</returns> public STS DatCallback2(DG a_dg, MSG a_msg, ref TW_CALLBACK2 a_twcallback2) { STS sts; // Submit the work to the TWAIN thread... if ((m_threadTwain != null) && (m_threadTwain.ManagedThreadId != Thread.CurrentThread.ManagedThreadId)) { lock (m_lockTwain) { // Set our command variables... ThreadData threaddata = default(ThreadData); threaddata.twcallback2 = a_twcallback2; threaddata.dg = a_dg; threaddata.msg = a_msg; threaddata.dat = DAT.CALLBACK; long lIndex = m_twaincommand.Submit(threaddata); // Submit the command and wait for the reply... CallerToThreadSet(); ThreadToCallerWaitOne(); // Return the result... a_twcallback2 = m_twaincommand.Get(lIndex).twcallback2; sts = m_twaincommand.Get(lIndex).sts; // Clear the command variables... m_twaincommand.Delete(lIndex); } return (sts); } // Log it... if (Log.GetLevel() > 0) { Log.LogSendBefore(a_dg.ToString(), DAT.CALLBACK2.ToString(), a_msg.ToString(), Callback2ToCsv(a_twcallback2)); } // Windows... if (ms_platform == Platform.WINDOWS) { // Issue the command... try { if (m_blUseLegacyDSM) { sts = (STS)WindowsTwain32DsmEntryCallback2(ref m_twidentitylegacyApp, ref m_twidentitylegacyDs, a_dg, DAT.CALLBACK2, a_msg, ref a_twcallback2); } else { sts = (STS)WindowsTwaindsmDsmEntryCallback2(ref m_twidentitylegacyApp, ref m_twidentitylegacyDs, a_dg, DAT.CALLBACK2, a_msg, ref a_twcallback2); } } catch { // The driver crashed... Log.LogSendAfter(STS.BUMMER.ToString(), ""); return (STS.BUMMER); } } // Linux... else if (ms_platform == Platform.LINUX) { // Issue the command... try { if (GetMachineWordBitSize() == 32) { sts = (STS)LinuxDsmEntryCallback2(ref m_twidentitylegacyApp, ref m_twidentitylegacyDs, a_dg, DAT.CALLBACK2, a_msg, ref a_twcallback2); } else { sts = (STS)Linux64DsmEntryCallback2(ref m_twidentityApp, ref m_twidentityDs, a_dg, DAT.CALLBACK2, a_msg, ref a_twcallback2); } } catch { // The driver crashed... Log.LogSendAfter(STS.BUMMER.ToString(), ""); return (STS.BUMMER); } } // Mac OS X, which has to be different... else if (ms_platform == Platform.MACOSX) { // Issue the command... try { sts = (STS)MacosxDsmEntryCallback2(ref m_twidentitymacosxApp, IntPtr.Zero, a_dg, DAT.CALLBACK2, a_msg, ref a_twcallback2); } catch { // The driver crashed... Log.LogSendAfter(STS.BUMMER.ToString(), ""); return (STS.BUMMER); } } // Uh-oh... else { Log.LogSendAfter(STS.BUMMER.ToString(), ""); return (STS.BUMMER); } // Log it... if (Log.GetLevel() > 0) { Log.LogSendAfter(sts.ToString(), Callback2ToCsv(a_twcallback2)); } // All done... return (AutoDatStatus(sts)); }
private static extern UInt16 MacosxDsmEntryCallback2 ( ref TW_IDENTITY_MACOSX origin, IntPtr dest, DG dg, DAT dat, MSG msg, ref TW_CALLBACK2 twcallback );
private static extern UInt16 Linux64DsmEntryCallback2 ( ref TW_IDENTITY origin, ref TW_IDENTITY dest, DG dg, DAT dat, MSG msg, ref TW_CALLBACK2 twcallback2 );
private static extern UInt16 WindowsTwaindsmDsmEntryCallback2 ( ref TW_IDENTITY_LEGACY origin, ref TW_IDENTITY_LEGACY dest, DG dg, DAT dat, MSG msg, ref TW_CALLBACK2 twcallback2 );