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Add reset on cancel so sample ds works.

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This commit is contained in:
Eugene Wang 2023-04-12 18:57:15 -04:00
parent 4d8da799c0
commit 232aa93e6e
1 changed files with 10 additions and 9 deletions
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19
src/NTwain/TwainAppSession.Xfers.cs
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@ -2,7 +2,6 @@
using NTwain.Native;
using NTwain.Triplets;
using System;
using System.Buffers;
using System.IO;
using System.Runtime.InteropServices;
@ -111,8 +110,7 @@ namespace NTwain
try
{
if (readyArgs.Cancel != CancelType.SkipCurrent &&
Transferred != null)
if (readyArgs.Cancel != CancelType.SkipCurrent)
{
// transfer normally and only if someone's listening
// to DataTransferred event
@ -146,6 +144,7 @@ namespace NTwain
break;
}
}
HandleXferCode(ref sts, ref pending);
}
}
catch (Exception ex)
@ -164,7 +163,7 @@ namespace NTwain
} while (sts.RC == TWRC.SUCCESS && pending.Count != 0);
}
HandleXferCode(sts);
HandleXferCode(ref sts, ref pending);
if (State >= STATE.S5)
{
_uiThreadMarshaller.Send(obj =>
@ -175,7 +174,7 @@ namespace NTwain
_inTransfer = false;
}
private void HandleXferCode(STS sts)
private void HandleXferCode(ref STS sts, ref TW_PENDINGXFERS pending)
{
switch (sts.RC)
{
@ -190,9 +189,9 @@ namespace NTwain
var twain = ((TwainAppSession)obj!);
twain.TransferCanceled?.Invoke(twain, new TransferCanceledEventArgs());
}, this);
TW_PENDINGXFERS pending = default;
DGControl.PendingXfers.EndXfer(ref _appIdentity, ref _currentDS, ref pending);
// todo: also reset?
sts = WrapInSTS(DGControl.PendingXfers.EndXfer(ref _appIdentity, ref _currentDS, ref pending));
sts = WrapInSTS(DGControl.PendingXfers.Reset(ref _appIdentity, ref _currentDS, ref pending));
if (sts.RC == TWRC.SUCCESS) State = STATE.S5;
break;
default:
// TODO: raise error event
@ -206,13 +205,15 @@ namespace NTwain
case TWCC.PAPERDOUBLEFEED:
case TWCC.PAPERJAM:
pending = default;
DGControl.PendingXfers.EndXfer(ref _appIdentity, ref _currentDS, ref pending);
sts = WrapInSTS(DGControl.PendingXfers.EndXfer(ref _appIdentity, ref _currentDS, ref pending));
break;
case TWCC.OPERATIONERROR:
GetCapCurrent(CAP.CAP_INDICATORS, out TW_BOOL showIndicator);
if (_userInterface.ShowUI == 0 && showIndicator == TW_BOOL.False)
{
// todo: alert user and drop to S4
sts = WrapInSTS(DGControl.PendingXfers.EndXfer(ref _appIdentity, ref _currentDS, ref pending));
sts = WrapInSTS(DGControl.PendingXfers.Reset(ref _appIdentity, ref _currentDS, ref pending));
}
break;
}