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Major revamp for beta, with simplified initialization and no winform/wpf dependency.

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This commit is contained in:
Eugene Wang
2026-01-08 21:20:58 -05:00
parent 1b02f0fcad
commit 51414ad136
124 changed files with 14367 additions and 13676 deletions
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99
samples/WinForm32/Form1.cs
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@@ -2,6 +2,7 @@ using Microsoft.Win32;
using NTwain;
using NTwain.Caps;
using NTwain.Data;
using NTwain.Events;
using System;
using System.Collections.Generic;
using System.ComponentModel;
@@ -38,7 +39,7 @@ public partial class Form1 : Form
TWPlatform.PreferLegacyDSM = false;
twain = new TwainAppSession();
twain = new TwainAppSession(appThreadContext: SynchronizationContext.Current);
twain.StateChanged += Twain_StateChanged;
twain.DefaultSourceChanged += Twain_DefaultSourceChanged;
twain.CurrentSourceChanged += Twain_CurrentSourceChanged;
@@ -62,16 +63,13 @@ public partial class Form1 : Form
_jpegEncoder = ImageCodecInfo.GetImageEncoders().First(enc => enc.FormatID == ImageFormat.Jpeg.Guid);
}
private void Twain_SourceDisabled(TwainAppSession sender, TW_IDENTITY_LEGACY e)
private void Twain_SourceDisabled(TwainAppSession sender, TWIdentityWrapper e)
{
BeginInvoke(() =>
if (watch.IsRunning)
{
if (watch.IsRunning)
{
watch.Stop();
MessageBox.Show($"Took {watch.Elapsed} to finish that transfer.");
}
});
watch.Stop();
MessageBox.Show($"Took {watch.Elapsed} to finish that transfer.");
}
}
private void SystemEvents_SessionSwitch(object sender, SessionSwitchEventArgs e)
@@ -86,29 +84,18 @@ public partial class Form1 : Form
}
}
protected override async void OnHandleCreated(EventArgs e)
protected override void OnLoad(EventArgs e)
{
base.OnHandleCreated(e);
base.OnLoad(e);
if (useDiyPump)
{
var sts = await twain.OpenDSMAsync();
Debug.WriteLine($"OpenDSMAsync={sts}");
}
else
{
var hwnd = this.Handle;
var sts = twain.OpenDSM(hwnd, SynchronizationContext.Current!);
twain.AddWinformFilter();
Debug.WriteLine($"OpenDSM={sts}");
}
var sts = twain.OpenDsm();
Debug.WriteLine($"OpenDSMAsync={sts}");
}
protected override void OnFormClosing(FormClosingEventArgs e)
{
var finalState = twain.TryStepdown(STATE.S2);
Debug.WriteLine($"Stepdown result state={finalState}");
twain.RemoveWinformFilter();
base.OnFormClosing(e);
}
@@ -224,44 +211,41 @@ public partial class Form1 : Form
Debug.WriteLine($"[thread {Environment.CurrentManagedThreadId}] transfer ready.");
}
private void Twain_DefaultSourceChanged(TwainAppSession sender, TW_IDENTITY_LEGACY ds)
private void Twain_DefaultSourceChanged(TwainAppSession sender, TWIdentityWrapper? ds)
{
BeginInvoke(() => lblDefault.Text = ds.ProductName);
lblDefault.Text = ds?.ProductName;
}
private void Twain_StateChanged(TwainAppSession sender, STATE state)
{
BeginInvoke(() => lblState.Text = state.ToString());
lblState.Text = state.ToString();
}
private void Twain_CurrentSourceChanged(TwainAppSession sender, TW_IDENTITY_LEGACY ds)
private void Twain_CurrentSourceChanged(TwainAppSession sender, TWIdentityWrapper? ds)
{
BeginInvoke(() =>
lblCurrent.Text = ds?.ToString();
if (twain.State == STATE.S4)
{
lblCurrent.Text = ds.ToString();
if (twain.State == STATE.S4)
{
LoadCapInfoList();
LoadCapInfoList();
// never seen a driver support these but here it is to test it
if (twain.GetCapLabel(CAP.ICAP_SUPPORTEDSIZES, out string? test).RC == TWRC.SUCCESS)
{
Debug.WriteLine($"Supported sizes label from ds = {test}");
}
if (twain.GetCapHelp(CAP.ICAP_SUPPORTEDSIZES, out string? test2).RC == TWRC.SUCCESS)
{
Debug.WriteLine($"Supported sizes help from ds = {test2}");
}
if (twain.GetCapLabelEnum(CAP.ICAP_SUPPORTEDSIZES, out IList<string>? test3).RC == TWRC.SUCCESS && test3 != null)
{
Debug.WriteLine($"Supported sizes label enum from ds = {string.Join(Environment.NewLine, test3)}");
}
}
else
// never seen a driver support these but here it is to test it
if (twain.GetCapLabel(CAP.ICAP_SUPPORTEDSIZES, out string? test).RC == TWRC.SUCCESS)
{
capListView.Items.Clear();
Debug.WriteLine($"Supported sizes label from ds = {test}");
}
});
if (twain.GetCapHelp(CAP.ICAP_SUPPORTEDSIZES, out string? test2).RC == TWRC.SUCCESS)
{
Debug.WriteLine($"Supported sizes help from ds = {test2}");
}
if (twain.GetCapLabelEnum(CAP.ICAP_SUPPORTEDSIZES, out IList<string>? test3).RC == TWRC.SUCCESS && test3 != null)
{
Debug.WriteLine($"Supported sizes label enum from ds = {string.Join(Environment.NewLine, test3)}");
}
}
else
{
capListView.Items.Clear();
}
}
private void LoadCapInfoList()
@@ -277,7 +261,7 @@ public partial class Form1 : Form
if (twain.GetCapCurrent(c, out TW_CAPABILITY twcap).RC == TWRC.SUCCESS)
{
var enumType = SizeAndConversionUtils.GetEnumType(c);
var realType = twcap.DetermineValueType(twain);
var realType = twcap.DetermineValueType(twain.MemoryManager);
it.SubItems.Add(enumType?.Name.ToString() ?? realType.ToString());
it.SubItems.Add(ReadTypedValue(c, enumType, realType, forCurrent: true));
it.SubItems.Add(ReadTypedValue(c, enumType, realType, forCurrent: false));
@@ -441,7 +425,7 @@ public partial class Form1 : Form
private void btnSetDef_Click(object sender, EventArgs e)
{
if (listSources.SelectedItem is TW_IDENTITY_LEGACY ds)
if (listSources.SelectedItem is TWIdentityWrapper ds)
{
twain.SetDefaultSource(ds);
}
@@ -449,7 +433,7 @@ public partial class Form1 : Form
private void btnOpen_Click(object sender, EventArgs e)
{
if (listSources.SelectedItem is TW_IDENTITY_LEGACY ds)
if (listSources.SelectedItem is TWIdentityWrapper ds)
{
twain.TryStepdown(STATE.S3);
@@ -466,17 +450,22 @@ public partial class Form1 : Form
{
twain.TryStepdown(STATE.S3);
if (twain.DefaultSource == null)
{
MessageBox.Show("No default source set.");
return;
}
twain.OpenSource(twain.DefaultSource);
}
private void btnShowSettings_Click(object sender, EventArgs e)
{
twain.EnableSource(true, true);
twain.EnableSource(SourceEnableOption.UIOnly);
}
private void btnStart_Click(object sender, EventArgs e)
{
if (twain.EnableSource(ckShowUI.Checked, false).IsSuccess)
if (twain.EnableSource(ckShowUI.Checked ? SourceEnableOption.ShowUI : SourceEnableOption.NoUI).IsSuccess)
{
_useThreadForImag = ckBgImageHandling.Checked;
_useSystemDrawing = ckSystemDrawing.Checked;