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40 lines
1.8 KiB
C#
40 lines
1.8 KiB
C#
using NTwain.Data;
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using NTwain.Internals;
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namespace NTwain.Triplets
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{
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/// <summary>
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/// Represents <see cref="DataArgumentType.XferGroup"/>.
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/// </summary>
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Xfer")]
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public sealed class XferGroup : OpBase
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{
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internal XferGroup(ITwainSessionInternal session) : base(session) { }
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/// <summary>
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/// Returns the Data Group (the type of data) for the upcoming transfer. The Source is required to
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/// only supply one of the DGs specified in the SupportedGroups field of origin.
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/// </summary>
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/// <param name="value">The value.</param>
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/// <returns></returns>
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1045:DoNotPassTypesByReference", MessageId = "0#")]
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public ReturnCode Get(ref DataGroups value)
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{
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Session.VerifyState(4, 6, DataGroups.Control, DataArgumentType.XferGroup, Message.Get);
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return Dsm.DsmEntry(Session.AppId, Session.CurrentSource.Identity, DataGroups.Control, DataArgumentType.XferGroup, Message.Get, ref value);
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}
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/// <summary>
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/// The transfer group determines the kind of data being passed from the Source to the Application.
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/// By default a TWAIN Source must default to DG_IMAGE. Currently the only other data group
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/// supported is DG_AUDIO, which is a feature supported by some digital cameras.
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/// </summary>
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/// <param name="value">The value.</param>
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/// <returns></returns>
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public ReturnCode Set(DataGroups value)
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{
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Session.VerifyState(6, 6, DataGroups.Control, DataArgumentType.XferGroup, Message.Set);
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return Dsm.DsmEntry(Session.AppId, Session.CurrentSource.Identity, DataGroups.Control, DataArgumentType.XferGroup, Message.Set, ref value);
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}
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}
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} |