ntwain/NTwain/Triplets/DGControl/DGControl.PassThru.cs
2014-04-02 19:01:21 -04:00

42 lines
1.9 KiB
C#

// The MIT License (MIT)
// Copyright (c) 2013 Yin-Chun Wang
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
// OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using NTwain.Data;
using NTwain.Values;
using System;
namespace NTwain.Triplets
{
public sealed class PassThru : OpBase
{
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="sourcePassThru">The source pass thru.</param>
/// <returns></returns>
public ReturnCode PassThrough(TWPassThru sourcePassThru)
{
Session.VerifyState(4, 7, DataGroups.Control, DataArgumentType.PassThru, Message.PassThru);
return PInvoke.DsmEntry(Session.AppId, Session.SourceId, Message.PassThru, sourcePassThru);
}
}
}