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Progress with OpenDS.

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This commit is contained in:
Eugene Wang 2023-04-01 16:05:44 -04:00
parent f63fbc8371
commit c793ae8e57
3 changed files with 101 additions and 1 deletions
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3
samples/WinForm32/Form1.cs
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@ -24,7 +24,7 @@ namespace WinForm32
private static void Twain_StateChanged(TwainSession session, STATE state)
{
Console.WriteLine($"State changed to {state}");
Debug.WriteLine($"State changed to {state}");
}
protected override void OnHandleCreated(EventArgs e)
@ -35,6 +35,7 @@ namespace WinForm32
var hwnd = this.Handle;
var rc = twain.DGControl.Parent.OpenDSM(ref hwnd);
Debug.WriteLine($"OpenDSM={rc}");
}
protected override void OnClosing(CancelEventArgs e)

96
src/NTwain/Triplets/DATIdentity.cs Normal file
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@ -0,0 +1,96 @@
using System;
using TWAINWorkingGroup;
namespace NTwain.Triplets
{
/// <summary>
/// Contains calls used with <see cref="DG.CONTROL"/> and <see cref="DAT.IDENTITY"/>.
/// </summary>
public class DATIdentity : TripletBase
{
public DATIdentity(TwainSession session) : base(session)
{
}
/// <summary>
/// Loads and opens the specified DS.
/// </summary>
/// <param name="ds"></param>
/// <returns></returns>
public STS OpenDS(ref TW_IDENTITY_LEGACY ds)
{
STS rc;
if ((rc = DoIt(MSG.OPENDS, ref ds, true)) == STS.SUCCESS)
{
Session.State = STATE.S4;
//// determine memory mgmt routines used
//if ((((DG)Session._appIdentityLegacy.SupportedGroups) & DG.DSM2) == DG.DSM2)
//{
// TW_ENTRYPOINT_DELEGATES entry = default;
// if (Session.DGControl.EntryPoint.Get(ref entry) == STS.SUCCESS)
// {
// Session._entryPoint = entry;
// }
//}
}
return rc;
}
///// <summary>
///// Closes the currently open DS.
///// </summary>
///// <returns></returns>
//public STS CloseDS(ref IntPtr hwnd)
//{
// STS rc;
// if ((rc = DoIt(MSG.CLOSEDSM, ref hwnd)) == STS.SUCCESS)
// {
// Session._hwnd = IntPtr.Zero;
// Session._entryPoint = default;
// Session.State = STATE.S2;
// }
// return rc;
//}
STS DoIt(MSG msg, ref TW_IDENTITY_LEGACY ds, bool updateSource)
{
var rc = STS.FAILURE;
if (TwainPlatform.IsWindows)
{
var app = Session._appIdentityLegacy;
if (TwainPlatform.Is32bit && TwainPlatform.PreferLegacyDSM)
{
rc = (STS)NativeMethods.WindowsTwain32DsmEntryIdentity(ref app, IntPtr.Zero, DG.CONTROL, DAT.IDENTITY, msg, ref ds);
}
else
{
rc = (STS)NativeMethods.WindowsTwaindsmDsmEntryIdentity(ref app, IntPtr.Zero, DG.CONTROL, DAT.IDENTITY, msg, ref ds);
}
if (updateSource && rc == STS.SUCCESS)
{
Session._dsIdentityLegacy = ds;
}
}
else if (TwainPlatform.IsMacOSX)
{
var app = Session._appIdentityOSX;
TW_IDENTITY_MACOSX osxds = ds;
if (TwainPlatform.PreferLegacyDSM)
{
rc = (STS)NativeMethods.MacosxTwainDsmEntryIdentity(ref app, IntPtr.Zero, DG.CONTROL, DAT.IDENTITY, msg, ref osxds);
}
else
{
rc = (STS)NativeMethods.MacosxTwaindsmDsmEntryIdentity(ref app, IntPtr.Zero, DG.CONTROL, DAT.IDENTITY, msg, ref osxds);
}
if (updateSource && rc == STS.SUCCESS)
{
Session._dsIdentityOSX = osxds;
Session._dsIdentityLegacy = osxds;
}
}
return rc;
}
}
}

3
src/NTwain/Triplets/DGControl.cs
View File

@ -15,5 +15,8 @@
private DATEntryPoint? _entryPoint;
public DATEntryPoint EntryPoint => _entryPoint ??= new DATEntryPoint(Session);
private DATIdentity? _identity;
public DATIdentity Identity => _identity ??= new DATIdentity(Session);
}
}