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Added PassThru triplet.

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This commit is contained in:
Eugene Wang
2018-11-18 11:26:11 -05:00
parent 7522bdf696
commit 6ccd370afc
2 changed files with 53 additions and 0 deletions
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47
src/NTwain/Triplets/Control/PassThru.cs Normal file
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@@ -0,0 +1,47 @@
using NTwain.Data;
using NTwain.Internals;
namespace NTwain.Triplets.Control
{
/// <summary>
/// Represents <see cref="DataArgumentType.PassThru"/>.
/// </summary>
public sealed class PassThru : BaseTriplet
{
internal PassThru(TwainSession session) : base(session) { }
/// <summary>
/// PASSTHRU is intended for the use of Source writers writing diagnostic applications. It allows
/// raw communication with the currently selected device in the Source.
/// </summary>
/// <param name="data">The pass thru data.</param>
/// <returns></returns>
public ReturnCode PassThrough(ref TW_PASSTHRU data)
{
if (Is32Bit)
{
if (IsWin)
return NativeMethods.DsmWin32(Session.Config.App32, Session.CurrentSource.Identity32,
DataGroups.Control, DataArgumentType.PassThru, Message.PassThru, ref data);
if (IsLinux)
return NativeMethods.DsmLinux32(Session.Config.App32, Session.CurrentSource.Identity32,
DataGroups.Control, DataArgumentType.PassThru, Message.PassThru, ref data);
if (IsMac)
return NativeMethods.DsmMac32(Session.Config.App32, Session.CurrentSource.Identity32,
DataGroups.Control, DataArgumentType.PassThru, Message.PassThru, ref data);
}
if (IsWin)
return NativeMethods.DsmWin64(Session.Config.App32, Session.CurrentSource.Identity32,
DataGroups.Control, DataArgumentType.PassThru, Message.PassThru, ref data);
if (IsLinux)
return NativeMethods.DsmLinux64(Session.Config.App32, Session.CurrentSource.Identity32,
DataGroups.Control, DataArgumentType.PassThru, Message.PassThru, ref data);
if (IsMac)
return NativeMethods.DsmMac64(Session.Config.App32, Session.CurrentSource.Identity32,
DataGroups.Control, DataArgumentType.PassThru, Message.PassThru, ref data);
return ReturnCode.Failure;
}
}
}

6
src/NTwain/Triplets/DGControl.cs
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@@ -51,6 +51,12 @@ namespace NTwain.Triplets
CustomDSData _custDSData;
internal CustomDSData CustomDSData => _custDSData ?? (_custDSData = new CustomDSData(Session));
PassThru _passThru;
/// <summary>
/// Gets the operations defined for DAT_PASSTHRU.
/// </summary>
public PassThru PassThru => _passThru ?? (_passThru = new PassThru(Session));
XferGroup _xferGroup;
/// <summary>
/// Gets the operations defined for DAT_XFERGROUP.