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Add attempt to enable ds.

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This commit is contained in:
Eugene Wang
2021-04-21 22:43:52 -04:00
parent 5f443d59e1
commit d1b2f1cb4c
3 changed files with 84 additions and 7 deletions
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26
NTwain/TwainSession.cs
View File

@@ -153,6 +153,7 @@ namespace NTwain
/// <summary>
/// Closes the TWAIN data source manager.
/// This is called when <see cref="Dispose"/> is invoked.
/// </summary>
public void Close()
{
@@ -284,6 +285,31 @@ namespace NTwain
}
}
/// <summary>
/// Attempts to show the current device's settings dialog if supported.
/// </summary>
/// <returns></returns>
public STS ShowSettings()
{
TW_USERINTERFACE ui = default;
ui.hParent = _hWnd;
ui.ShowUI = 1;
return _twain.DatUserinterface(DG.CONTROL, MSG.ENABLEDSUIONLY, ref ui);
}
/// <summary>
/// Begins the capture process on the current device.
/// </summary>
/// <param name="showUI">Whether to display settings UI. Not all devices support this.</param>
/// <returns></returns>
public STS StartCapture(bool showUI)
{
TW_USERINTERFACE ui = default;
ui.hParent = _hWnd;
ui.ShowUI = (ushort)(showUI ? 1 : 0);
return _twain.DatUserinterface(DG.CONTROL, MSG.ENABLEDS, ref ui);
}
#endregion
}
}

3
samples/Net5Console/Net5Console.csproj
View File

@@ -1,8 +1,9 @@
<Project Sdk="Microsoft.NET.Sdk">
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net5.0-windows</TargetFramework>
<!--<PlatformTarget>x86</PlatformTarget>-->
</PropertyGroup>
<ItemGroup>

58
samples/Net5Console/Program.cs
View File

@@ -1,6 +1,8 @@
using NTwain;
using System;
using System.Reflection;
using System.Threading;
using TWAINWorkingGroup;
namespace Net5Console
{
@@ -8,23 +10,71 @@ namespace Net5Console
{
static void Main(string[] args)
{
Console.WriteLine("Starting twain test in console...");
using (var twain = new TwainSession(Assembly.GetExecutingAssembly(), null, IntPtr.Zero))
using (var hold = new ManualResetEventSlim())
{
twain.DeviceEvent += (sender, e) =>
{
Console.WriteLine($"Got device event " + (TWDE)e.Event);
};
twain.ScanEvent += (sender, closing) =>
{
Console.WriteLine($"Got scan event " + closing);
TW_USERINTERFACE twuserinterface = default;
if (twain.TWAIN.DatUserinterface(DG.CONTROL, MSG.DISABLEDS, ref twuserinterface) == STS.SUCCESS)
{
Console.WriteLine("Disabled device.");
}
else
{
Console.Error.WriteLine("Failed to disabled device.");
}
hold.Set();
};
if (twain.Open() == TWAINWorkingGroup.STS.SUCCESS)
{
Console.WriteLine("Opened DSM");
Console.WriteLine("Default device:");
Console.WriteLine($"\t{twain.DefaultDevice}");
Console.WriteLine("All devices:");
TW_IDENTITY dsToUse = default;
foreach (var dev in twain.GetDevices())
{
Console.WriteLine($"\t{dev}");
if (dev.ProductName == "TWAIN2 FreeImage Software Scanner")
{
dsToUse = dev;
}
Console.WriteLine("Current device:");
Console.WriteLine($"\t{twain.CurrentDevice}");
twain.CurrentDevice = twain.DefaultDevice;
Console.WriteLine("Current device after setting:");
}
twain.CurrentDevice = dsToUse;
if (twain.CurrentDevice.HasValue)
{
Console.WriteLine("Current device after opening attempt:");
Console.WriteLine($"\t{twain.CurrentDevice}");
var sts = twain.StartCapture(false);
if (sts == STS.SUCCESS)
{
Console.Error.WriteLine("Waiting for capture to complete.");
while (!hold.IsSet) Thread.Sleep(100);
}
else
{
Console.Error.WriteLine("Failed to start capture: " + sts);
}
}
else
{
Console.WriteLine("No devices opened.");
}
}
else
{