public DataSourceManager(Identity applicationId, IWindowsMessageHook messageHook)
{
// Make a copy of the identity in case it gets modified
ApplicationId = applicationId.Clone();
ScanningComplete += delegate { };
TransferImage += delegate { };
_messageHook = messageHook;
_messageHook.FilterMessageCallback = FilterMessage;
IntPtr windowHandle = _messageHook.WindowHandle;
_eventMessage.EventPtr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(WindowsMessage)));
// Initialise the data source manager
TwainResult result = Twain32Native.DsmParent(
ApplicationId,
IntPtr.Zero,
DataGroup.Control,
DataArgumentType.Parent,
Message.OpenDSM,
ref windowHandle);
if (result == TwainResult.Success)
{
//according to the 2.0 spec (2-10) if (applicationId.SupportedGroups
// | DataGroup.Dsm2) > 0 then we should call DM_Entry(id, 0, DG_Control, DAT_Entrypoint, MSG_Get, wh)
//right here
DataSource = DataSource.GetDefault(ApplicationId, _messageHook);
}
else
{
throw new TwainException("Error initialising DSM: " + result, result);
}
}
public Scan(Program.Options options)
{
log.Debug("creating scan host");
log.DebugFormat("create interprocess input pipe (handle={0})", options.pipeIn);
pipeIn = new AnonymousPipeClientStream(PipeDirection.In, options.pipeIn);
log.DebugFormat("create interprocess output pipe (handle={0})", options.pipeOut);
pipeOut = new AnonymousPipeClientStream(PipeDirection.Out, options.pipeOut);
log.Debug("create sync event");
sync = new ManualResetEvent(false);
log.Debug("create native messaging port");
port = new Port(pipeIn, pipeOut);
log.Debug("create stop event");
stop = new ManualResetEvent(false);
log.Debug("create form");
form = new Form();
form.TopMost = true;
form.BringToFront();
log.Debug("create hook");
hook = new WinFormsWindowMessageHook(form);
log.Debug("create image acquired and image transferred events");
imageAcquired = new ManualResetEvent(false);
imageTransferred = new ManualResetEvent(false);
log.Debug("scan host created");
}
public static DataSource GetDefault(Identity applicationId, IWindowsMessageHook messageHook)
{
log.Debug("create new identity");
var defaultSourceId = new Identity();
// Attempt to get information about the system default source
log.Debug("call DsmIdentity");
var result = Twain32Native.DsmIdentity(
applicationId,
IntPtr.Zero,
DataGroup.Control,
DataArgumentType.Identity,
Message.GetDefault,
defaultSourceId);
if (result != TwainResult.Success)
{
log.Debug("result != success");
var status = DataSourceManager.GetConditionCode(applicationId, null);
throw new TwainException("Error getting information about the default source: " + result, result, status);
}
log.Debug("return new data source");
return(new DataSource(applicationId, defaultSourceId, messageHook));
}
protected virtual void Dispose(bool disposing)
{
Marshal.FreeHGlobal(_eventMessage.EventPtr);
if (disposing)
{
DataSource.Dispose();
IntPtr windowHandle = _messageHook.WindowHandle;
if (ApplicationId.Id != 0)
{
// Close down the data source manager
Twain32Native.DsmParent(
ApplicationId,
IntPtr.Zero,
DataGroup.Control,
DataArgumentType.Parent,
Message.CloseDSM,
ref windowHandle);
}
ApplicationId.Id = 0;
_messageHook = null;
}
}
public Scan(Program.Options options)
{
log.Debug("creating scan host");
log.DebugFormat("create interprocess input pipe (handle={0})", options.pipeIn);
pipeIn = new AnonymousPipeClientStream(PipeDirection.In, options.pipeIn);
log.DebugFormat("create interprocess output pipe (handle={0})", options.pipeOut);
pipeOut = new AnonymousPipeClientStream(PipeDirection.Out, options.pipeOut);
log.Debug("create sync event");
sync = new ManualResetEvent(false);
log.Debug("create native messaging port");
port = new Port(pipeIn, pipeOut);
log.Debug("create stop event");
stop = new ManualResetEvent(false);
log.Debug("create form");
form = new Form();
form.TopMost = true;
form.BringToFront();
log.Debug("create hook");
hook = new WinFormsWindowMessageHook(form);
log.Debug("create image acquired and image transferred events");
imageAcquired = new ManualResetEvent(false);
imageTransferred = new ManualResetEvent(false);
log.Debug("scan host created");
}
public DataSourceManager(Identity applicationId, IWindowsMessageHook messageHook)
{
// Make a copy of the identity in case it gets modified
ApplicationId = applicationId.Clone();
ScanningComplete += delegate { };
TransferImage += delegate { };
_messageHook = messageHook;
_messageHook.FilterMessageCallback = FilterMessage;
IntPtr windowHandle = _messageHook.WindowHandle;
_eventMessage.EventPtr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(WindowsMessage)));
// Initialise the data source manager
TwainResult result = Twain32Native.DsmParent(
ApplicationId,
IntPtr.Zero,
DataGroup.Control,
DataArgumentType.Parent,
Message.OpenDSM,
ref windowHandle);
if (result == TwainResult.Success)
{
//according to the 2.0 spec (2-10) if (applicationId.SupportedGroups
// | DataGroup.Dsm2) > 0 then we should call DM_Entry(id, 0, DG_Control, DAT_Entrypoint, MSG_Get, wh)
//right here
DataSource = DataSource.GetDefault(ApplicationId, _messageHook);
}
else
{
throw new TwainException("Error initialising DSM: " + result, result);
}
}
public DataSource(Identity applicationId, Identity sourceId, IWindowsMessageHook messageHook, ILog logger)
{
_applicationId = applicationId;
SourceId = sourceId.Clone();
_messageHook = messageHook;
SourceState = null;
_log = logger;
}
public DataSource(Identity applicationId, Identity sourceId, IWindowsMessageHook messageHook, ILog logger)
{
_applicationId = applicationId;
SourceId = sourceId.Clone();
_messageHook = messageHook;
SourceState = null;
_log = logger;
}
public Twain(IWindowsMessageHook messageHook)
{
ScanningComplete += delegate {};
_dataSourceManager = new DataSourceManager(DataSourceManager.DefaultApplicationId, messageHook);
_dataSourceManager.ScanningComplete += delegate
{
ScanningComplete(this, EventArgs.Empty);
};
}
public static List <DataSource> GetAllSources(Identity applicationId, IWindowsMessageHook messageHook)
{
var sources = new List <DataSource>();
Identity id = new Identity();
// Get the first source
var result = Twain32Native.DsmIdentity(
applicationId,
IntPtr.Zero,
DataGroup.Control,
DataArgumentType.Identity,
Message.GetFirst,
id);
if (result == TwainResult.EndOfList)
{
return(sources);
}
else if (result != TwainResult.Success)
{
throw new TwainException("Error getting first source.", result);
}
else
{
sources.Add(new DataSource(applicationId, id, messageHook));
}
while (true)
{
// Get the next source
result = Twain32Native.DsmIdentity(
applicationId,
IntPtr.Zero,
DataGroup.Control,
DataArgumentType.Identity,
Message.GetNext,
id);
if (result == TwainResult.EndOfList)
{
break;
}
else if (result != TwainResult.Success)
{
throw new TwainException("Error enumerating sources.", result);
}
sources.Add(new DataSource(applicationId, id, messageHook));
}
return(sources);
}
public static List<DataSource> GetAllSources(Identity applicationId, IWindowsMessageHook messageHook)
{
var sources = new List<DataSource>();
Identity id = new Identity();
// Get the first source
var result = Twain32Native.DsmIdentity(
applicationId,
IntPtr.Zero,
DataGroup.Control,
DataArgumentType.Identity,
Message.GetFirst,
id);
if (result == TwainResult.EndOfList)
{
return sources;
}
else if (result != TwainResult.Success)
{
throw new TwainException("Error getting first source.", result);
}
else
{
sources.Add(new DataSource(applicationId, id, messageHook));
}
while (true)
{
// Get the next source
result = Twain32Native.DsmIdentity(
applicationId,
IntPtr.Zero,
DataGroup.Control,
DataArgumentType.Identity,
Message.GetNext,
id);
if (result == TwainResult.EndOfList)
{
break;
}
else if (result != TwainResult.Success)
{
throw new TwainException("Error enumerating sources.", result);
}
sources.Add(new DataSource(applicationId, id, messageHook));
}
return sources;
}
public Twain(IWindowsMessageHook messageHook)
{
ScanningComplete += delegate { };
_dataSourceManager = new DataSourceManager(DataSourceManager.DefaultApplicationId, messageHook);
_dataSourceManager.ScanningComplete += delegate(object sender, ScanningCompleteEventArgs args)
{
ScanningComplete(this, args);
};
_dataSourceManager.TransferImages += delegate(object sender, TransferImagesEventArgs args)
{
TransferImages(this, args);
};
}
public Twain(IWindowsMessageHook messageHook)
{
ScanningComplete += delegate { };
TransferImage += delegate { };
_dataSourceManager = new DataSourceManager(DataSourceManager.DefaultApplicationId, messageHook);
_dataSourceManager.ScanningComplete += delegate(object sender, ScanningCompleteEventArgs args)
{
ScanningComplete(this, args);
};
_dataSourceManager.TransferImage += delegate(object sender, TransferImageEventArgs args)
{
TransferImage(this, args);
};
}
public static DataSource UserSelected(Identity applicationId, IWindowsMessageHook messageHook)
{
var defaultSourceId = new Identity();
// Show the TWAIN interface to allow the user to select a source
Twain32Native.DsmIdentity(
applicationId,
IntPtr.Zero,
DataGroup.Control,
DataArgumentType.Identity,
Message.UserSelect,
defaultSourceId);
return(new DataSource(applicationId, defaultSourceId, messageHook));
}
/// <summary>
/// Twain dll的最外層。當建構子完成，代表進入twain state 3，接下來就可以去open data souse了。
/// </summary>
/// <param name="messageHook"></param>
/// <param name="useIncremental">使用一次性傳輸或是buffered memory mode傳輸</param>
public Twain(IWindowsMessageHook messageHook, bool useIncremental = true)
{
ScanningComplete += delegate { };
TransferImage += delegate { };
_dataSourceManager = new DataSourceManager(DataSourceManager.DefaultApplicationId, messageHook);
IsIncremental = useIncremental;
_dataSourceManager.UseIncrementalMemoryXfer = useIncremental;
_dataSourceManager.ScanningComplete += delegate(object sender, ScanningCompleteEventArgs args)
{
ScanningComplete(this, args);
};
_dataSourceManager.TransferImage += delegate(object sender, TransferImageEventArgs args)
{
TransferImage(this, args);
};
}
public Twain(IWindowsMessageHook messageHook)
{
log.Debug("add scanning complete delegate");
ScanningComplete += delegate { };
log.Debug("add transfer image delegate");
TransferImage += delegate { };
log.Debug("create data source manager");
_dataSourceManager = new DataSourceManager(DataSourceManager.DefaultApplicationId, messageHook);
log.Debug("add scanning complete delegate to dsm");
_dataSourceManager.ScanningComplete += delegate(object sender, ScanningCompleteEventArgs args)
{
ScanningComplete(this, args);
};
log.Debug("add transfer image delegate to dsm");
_dataSourceManager.TransferImage += delegate(object sender, TransferImageEventArgs args)
{
TransferImage(this, args);
};
log.Debug("finished");
}
public Twain(IWindowsMessageHook messageHook)
{
log.Debug("add scanning complete delegate");
ScanningComplete += delegate { };
log.Debug("add transfer image delegate");
TransferImage += delegate { };
log.Debug("create data source manager");
_dataSourceManager = new DataSourceManager(DataSourceManager.DefaultApplicationId, messageHook);
log.Debug("add scanning complete delegate to dsm");
_dataSourceManager.ScanningComplete += delegate(object sender, ScanningCompleteEventArgs args)
{
ScanningComplete(this, args);
};
log.Debug("add transfer image delegate to dsm");
_dataSourceManager.TransferImage += delegate(object sender, TransferImageEventArgs args)
{
TransferImage(this, args);
};
log.Debug("finished");
}
/// <summary>
/// Get default data source.
/// </summary>
/// <param name="applicationId"></param>
/// <param name="messageHook"></param>
/// <returns></returns>
public static DataSource GetDefault(Identity applicationId, IWindowsMessageHook messageHook)
{
var defaultSourceId = new Identity();
// Attempt to get information about the system default source
var result = Twain32Native.DsmIdentity(
applicationId,
IntPtr.Zero,
DataGroup.Control,
DataArgumentType.Identity,
Message.GetDefault,
defaultSourceId);
if (result != TwainResult.Success)
{
ConditionCode status = DataSourceManager.GetConditionCode(applicationId, null);
Logger.WriteLog(LOG_LEVEL.LL_SERIOUS_ERROR, "Error getting information about the default source: " + result);
throw new TwainException("Error getting information about the default source: " + result, result, status);
}
return(new DataSource(applicationId, defaultSourceId, messageHook));
}
public Diagnostics(IWindowsMessageHook messageHook)
{
using (var dataSourceManager = new DataSourceManager(DataSourceManager.DefaultApplicationId, messageHook))
{
dataSourceManager.SelectSource();
var dataSource = dataSourceManager.DataSource;
dataSource.OpenSource();
foreach (Capabilities capability in Enum.GetValues(typeof(Capabilities)))
{
try
{
var result = Capability.GetBoolCapability(capability, dataSourceManager.ApplicationId, dataSource.SourceId);
Console.WriteLine("{0}: {1}", capability, result);
}
catch (TwainException e)
{
Console.WriteLine("{0}: {1} {2} {3}", capability, e.Message, e.ReturnCode, e.ConditionCode);
}
}
}
}
public Diagnostics(IWindowsMessageHook messageHook)
{
using (var dataSourceManager = new DataSourceManager(DataSourceManager.DefaultApplicationId, messageHook))
{
dataSourceManager.SelectSource();
var dataSource = dataSourceManager.DataSource;
dataSource.OpenSource();
foreach (Capabilities capability in Enum.GetValues(typeof(Capabilities)))
{
try
{
var result = Capability.GetBoolCapability(capability, dataSourceManager.ApplicationId, dataSource.SourceId);
Console.WriteLine("{0}: {1}", capability, result);
}
catch (TwainException e)
{
Console.WriteLine("{0}: {1} {2} {3}", capability, e.Message, e.ReturnCode, e.ConditionCode);
}
}
}
}
public static DataSource GetSource(string sourceProductName, Identity applicationId, IWindowsMessageHook messageHook)
{
// A little slower than it could be, if enumerating unnecessary sources is slow. But less code duplication.
foreach (var source in GetAllSources(applicationId, messageHook))
{
if (sourceProductName.Equals(source.SourceId.ProductName, StringComparison.InvariantCultureIgnoreCase))
{
return(source);
}
}
return(null);
}
public static DataSource GetSource(string sourceProductName, Identity applicationId, IWindowsMessageHook messageHook)
{
Identity id = new Identity();
// Get the first source
var result = Twain32Native.DsmIdentity(
applicationId,
IntPtr.Zero,
DataGroup.Control,
DataArgumentType.Identity,
Message.GetFirst,
id);
if (result == TwainResult.EndOfList)
{
return(null);
}
else if (result != TwainResult.Success)
{
throw new TwainException("Error getting first source.", result);
}
else if (id.ProductName == sourceProductName)
{
return(new DataSource(applicationId, id, messageHook));
}
while (true)
{
id = new Identity();
// Get the next source
result = Twain32Native.DsmIdentity(
applicationId,
IntPtr.Zero,
DataGroup.Control,
DataArgumentType.Identity,
Message.GetNext,
id);
if (result == TwainResult.EndOfList)
{
break;
}
else if (result != TwainResult.Success)
{
throw new TwainException("Error enumerating sources.", result);
}
else if (id.ProductName == sourceProductName)
{
return(new DataSource(applicationId, id, messageHook));
}
}
return(null);
}
public ImageScan(IWindowsMessageHook messageHook)
{
Twain = new Twain(messageHook);
}
public DataSource(Identity applicationId, Identity sourceId, IWindowsMessageHook messageHook)
{
_applicationId = applicationId;
SourceId = sourceId.Clone();
_messageHook = messageHook;
}
public static DataSource UserSelected(Identity applicationId, IWindowsMessageHook messageHook)
{
var defaultSourceId = new Identity();
// Show the TWAIN interface to allow the user to select a source
var result = Twain32Native.DsmIdentity(
applicationId,
IntPtr.Zero,
DataGroup.Control,
DataArgumentType.Identity,
Message.UserSelect,
defaultSourceId);
_log.Debug(string.Format("UserSelect, result: {0}", result));
return new DataSource(applicationId, defaultSourceId, messageHook, _log);
}
public static DataSource GetDefault(Identity applicationId, IWindowsMessageHook messageHook)
{
var defaultSourceId = new Identity();
// Attempt to get information about the system default source
var result = Twain32Native.DsmIdentity(
applicationId,
IntPtr.Zero,
DataGroup.Control,
DataArgumentType.Identity,
Message.GetDefault,
defaultSourceId);
if (result != TwainResult.Success)
{
var status = DataSourceManager.GetConditionCode(applicationId, null);
throw new TwainException("Error getting information about the default source: " + result, result, status);
}
return new DataSource(applicationId, defaultSourceId, messageHook);
}
public DataSource(Identity applicationId, Identity sourceId, IWindowsMessageHook messageHook)
{
_applicationId = applicationId;
SourceId = sourceId.Clone();
_messageHook = messageHook;
}
public static DataSource UserSelected(Identity applicationId, IWindowsMessageHook messageHook)
{
var defaultSourceId = new Identity();
// Show the TWAIN interface to allow the user to select a source
Twain32Native.DsmIdentity(
applicationId,
IntPtr.Zero,
DataGroup.Control,
DataArgumentType.Identity,
Message.UserSelect,
defaultSourceId);
return new DataSource(applicationId, defaultSourceId, messageHook);
}
public static DataSource GetSource(string sourceProductName, Identity applicationId, IWindowsMessageHook messageHook)
{
// A little slower than it could be, if enumerating unnecessary sources is slow. But less code duplication.
foreach (var source in GetAllSources(applicationId, messageHook))
{
if (sourceProductName.Equals(source.SourceId.ProductName, StringComparison.InvariantCultureIgnoreCase))
{
return source;
}
}
return null;
}
