ntwain/NTwain/Triplets/DGControl/DGControl.CustomDSData.cs

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2014-04-03 07:01:21 +08:00
// 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 CustomDSData : OpBase
{
internal CustomDSData(TwainSession session) : base(session) { }
/// <summary>
/// This operation is used by the application to query the data source for its current settings, e.g.
/// DPI, paper size, color format. The actual format of the data is data source dependent and not
/// defined by TWAIN.
/// </summary>
/// <param name="customData">The custom data.</param>
/// <returns></returns>
public ReturnCode Get(out TWCustomDSData customData)
{
Session.VerifyState(4, 4, DataGroups.Control, DataArgumentType.CustomDSData, Message.Get);
customData = new TWCustomDSData();
return PInvoke.DsmEntry(Session.AppId, Session.SourceId, Message.Get, customData);
}
/// <summary>
/// This operation is used by the application to set the current settings for a data source to a
/// previous state as defined by the data contained in the customData data structure. The actual
/// format of the data is data source dependent and not defined by TWAIN.
/// </summary>
/// <param name="customData">The custom data.</param>
/// <returns></returns>
public ReturnCode Set(TWCustomDSData customData)
{
Session.VerifyState(4, 4, DataGroups.Control, DataArgumentType.CustomDSData, Message.Set);
return PInvoke.DsmEntry(Session.AppId, Session.SourceId, Message.Set, customData);
}
}
}