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Added GetMetrics() wrapper.

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This commit is contained in:
Eugene Wang 2021-04-26 23:05:04 -04:00
parent a04f35f47e
commit 8b6a033204
4 changed files with 290 additions and 238 deletions
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23
src/NTwain/TWAINH_EXTRAS.cs
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@ -26,6 +26,29 @@ namespace TWAINWorkingGroup
True = 1
}
/// <summary>
/// A more dotnet-friendly representation of <see cref="TW_METRICS"/>.
/// </summary>
public struct Metrics
{
/// <summary>
/// Return code of querying the metrics.
/// </summary>
public STS ReturnCode;
/// <summary>
/// The number of sheets of paper processed by the scanner.
/// </summary>
public int Sheets;
/// <summary>
/// The number of images made available for transfer by the driver. This is not
/// necessarily the same as the number of images actually transferred, since the
/// application may opt to skip transfers or to end without transferring all images.
/// </summary>
public int Images;
}
/// <summary>
/// A more dotnet-friendly representation of <see cref="TW_ENUMERATION"/>.
/// </summary>

410
src/NTwain/TWAINWorkingGroup/TWAIN.cs
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File diff suppressed because it is too large Load Diff

66
src/NTwain/TWAINWorkingGroup/TWAINH.cs
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@ -1121,11 +1121,11 @@ namespace TWAINWorkingGroup
/// <summary>
/// Used to register callbacks.
/// </summary>
[SuppressMessage("Microsoft.Design", "CA1049:TypesThatOwnNativeResourcesShouldBeDisposable")]
[StructLayout(LayoutKind.Sequential, Pack = 2)]
public partial struct TW_CALLBACK
{
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr CallBackProc;
public uint RefCon;
public ushort Message;
@ -1137,9 +1137,9 @@ namespace TWAINWorkingGroup
[StructLayout(LayoutKind.Sequential, Pack = 2)]
public partial struct TW_CALLBACK2
{
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr CallBackProc;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public UIntPtr RefCon;
public ushort Message;
}
@ -1152,7 +1152,7 @@ namespace TWAINWorkingGroup
{
public CAP Cap;
public TWON ConType;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr hContainer;
}
@ -1193,7 +1193,7 @@ namespace TWAINWorkingGroup
public partial struct TW_CUSTOMDSDATA
{
public uint InfoLength;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr hData;
}
@ -1235,36 +1235,36 @@ namespace TWAINWorkingGroup
public partial struct TW_ENTRYPOINT
{
public UInt32 Size;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr DSM_Entry;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr DSM_MemAllocate;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr DSM_MemFree;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr DSM_MemLock;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr DSM_MemUnlock;
}
[StructLayout(LayoutKind.Sequential, Pack = 2)]
public partial struct TW_ENTRYPOINT_LINUX64
{
public long Size;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr DSM_Entry;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr DSM_MemAllocate;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr DSM_MemFree;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr DSM_MemLock;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr DSM_MemUnlock;
}
public partial struct TW_ENTRYPOINT_DELEGATES
{
public UInt32 Size;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr DSM_Entry;
public DSM_MEMALLOC DSM_MemAllocate;
public DSM_MEMFREE DSM_MemFree;
@ -1312,11 +1312,11 @@ namespace TWAINWorkingGroup
/// <summary>
/// Used to pass application events/messages from the application to the Source.
/// </summary>
[SuppressMessage("Microsoft.Design", "CA1049:TypesThatOwnNativeResourcesShouldBeDisposable")]
[StructLayout(LayoutKind.Sequential, Pack = 2)]
public partial struct TW_EVENT
{
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr pEvent;
public ushort TWMessage;
}
@ -1347,7 +1347,7 @@ namespace TWAINWorkingGroup
public UInt32 DescriptorCount;
public UInt32 MaxDescriptorCount;
public UInt32 Condition;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr hDescriptors;
}
@ -1361,7 +1361,7 @@ namespace TWAINWorkingGroup
public ushort ItemType;
public ushort NumItems;
public ushort ReturnCode;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public UIntPtr Item;
}
@ -1994,8 +1994,8 @@ namespace TWAINWorkingGroup
/// Provides information about the currently selected device.
/// TBD -- need a 32/64 bit solution for this mess
/// </summary>
[SuppressMessage("Microsoft.Portability", "CA1900:ValueTypeFieldsShouldBePortable", MessageId = "ModifiedTimeDate")]
[SuppressMessage("Microsoft.Portability", "CA1900:ValueTypeFieldsShouldBePortable", MessageId = "CreateTimeDate")]
[StructLayout(LayoutKind.Explicit, Pack = 2)]
public partial struct TW_FILESYSTEM
{
@ -2005,7 +2005,7 @@ namespace TWAINWorkingGroup
[FieldOffset(256)]
public TW_STR255 OutputName;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
[FieldOffset(512)]
public IntPtr Context;
@ -2049,7 +2049,7 @@ namespace TWAINWorkingGroup
[FieldOffset(1127)] // 620 + 508 - 1
private byte ReservedEnd;
}
[SuppressMessage("Microsoft.Portability", "CA1900:ValueTypeFieldsShouldBePortable", MessageId = "ModifiedTimeDate")]
[StructLayout(LayoutKind.Explicit, Pack = 2)]
public partial struct TW_FILESYSTEM_LEGACY
{
@ -2251,7 +2251,7 @@ namespace TWAINWorkingGroup
{
public uint Flags;
public uint Length;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr TheMem;
}
@ -2282,7 +2282,7 @@ namespace TWAINWorkingGroup
public UInt64 BytesWritten;
public UInt64 MemoryFlags;
public UInt64 MemoryLength;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr MemoryTheMem;
}
[StructLayout(LayoutKind.Sequential, Pack = 2)]
@ -2369,11 +2369,11 @@ namespace TWAINWorkingGroup
[StructLayout(LayoutKind.Sequential, Pack = 2)]
public partial struct TW_PASSTHRU
{
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr pCommand;
public uint CommandBytes;
public int Direction;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr pData;
public uint DataBytes;
public uint DataBytesXfered;
@ -2492,7 +2492,7 @@ namespace TWAINWorkingGroup
{
public TW_STATUS Status;
public uint Size;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr UTF8string;
}
@ -2504,10 +2504,10 @@ namespace TWAINWorkingGroup
{
public uint SizeOf;
public ushort CommunicationManager;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr Send;
public uint SendSize;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr Receive;
public uint ReceiveSize;
}
@ -2520,7 +2520,7 @@ namespace TWAINWorkingGroup
{
public ushort ShowUI;
public ushort ModalUI;
[SuppressMessage("Microsoft.Security", "CA2111:PointersShouldNotBeVisible")]
public IntPtr hParent;
}

29
src/NTwain/TwainSession.cs
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@ -4,6 +4,7 @@ using System.Diagnostics;
using System.Globalization;
using System.Linq;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using TWAINWorkingGroup;
@ -330,6 +331,34 @@ namespace NTwain
return _twain.DatUserinterface(DG.CONTROL, MSG.ENABLEDS, ref ui);
}
/// <summary>
/// Reads information relating to the last capture run.
/// Only valid on state 4 after a capture.
/// </summary>
public Metrics GetMetrics()
{
TW_METRICS twmetrics = default;
twmetrics.SizeOf = (uint)Marshal.SizeOf(twmetrics);
var sts = _twain.DatMetrics(DG.CONTROL, MSG.GET, ref twmetrics);
if (sts == STS.SUCCESS)
{
return new Metrics
{
ReturnCode = sts,
Images = (int)twmetrics.ImageCount,
Sheets = (int)twmetrics.SheetCount
};
}
return new Metrics { ReturnCode = sts };
}
//public sts SetTwainDirectTask()
//{
// TW_TWAINDIRECT task = default;
// var sts = _twain.DatTwaindirect(DG.CONTROL, MSG.SETTASK, ref task);
// return sts;
//}
#endregion
}
}