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Added musings on runnig as Console app.

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This commit is contained in:
soukoku 2014-04-06 15:22:11 -04:00
parent 0bd58e5e48
commit 006d33b451
7 changed files with 272 additions and 5 deletions
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15
NTwain.sln
View File

@ -1,7 +1,7 @@

Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio 2013
VisualStudioVersion = 12.0.30110.0
VisualStudioVersion = 12.0.30324.0
MinimumVisualStudioVersion = 10.0.40219.1
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "NTwain", "NTwain\NTwain.csproj", "{0C5A6FB1-0282-4D61-8354-68DEB1515001}"
EndProject
@ -19,6 +19,8 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Others", "Others", "{4CE0B9
README.markdown = README.markdown
EndProjectSection
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Tester.Console", "Tests\Tester.Console\Tester.Console.csproj", "{12D761EF-68DF-41CE-92EF-0C7AE81857A3}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
@ -68,6 +70,16 @@ Global
{1715C2B7-5C35-4F8B-9D9B-8D68A3D5284D}.Release|Mixed Platforms.ActiveCfg = Release|Any CPU
{1715C2B7-5C35-4F8B-9D9B-8D68A3D5284D}.Release|Mixed Platforms.Build.0 = Release|Any CPU
{1715C2B7-5C35-4F8B-9D9B-8D68A3D5284D}.Release|x86.ActiveCfg = Release|Any CPU
{12D761EF-68DF-41CE-92EF-0C7AE81857A3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{12D761EF-68DF-41CE-92EF-0C7AE81857A3}.Debug|Any CPU.Build.0 = Debug|Any CPU
{12D761EF-68DF-41CE-92EF-0C7AE81857A3}.Debug|Mixed Platforms.ActiveCfg = Debug|Any CPU
{12D761EF-68DF-41CE-92EF-0C7AE81857A3}.Debug|Mixed Platforms.Build.0 = Debug|Any CPU
{12D761EF-68DF-41CE-92EF-0C7AE81857A3}.Debug|x86.ActiveCfg = Debug|Any CPU
{12D761EF-68DF-41CE-92EF-0C7AE81857A3}.Release|Any CPU.ActiveCfg = Release|Any CPU
{12D761EF-68DF-41CE-92EF-0C7AE81857A3}.Release|Any CPU.Build.0 = Release|Any CPU
{12D761EF-68DF-41CE-92EF-0C7AE81857A3}.Release|Mixed Platforms.ActiveCfg = Release|Any CPU
{12D761EF-68DF-41CE-92EF-0C7AE81857A3}.Release|Mixed Platforms.Build.0 = Release|Any CPU
{12D761EF-68DF-41CE-92EF-0C7AE81857A3}.Release|x86.ActiveCfg = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
@ -76,6 +88,7 @@ Global
{6B034C50-A397-435F-8DDF-677B403FEBAA} = {2F906640-1664-4960-93D2-A054AC6E66A3}
{4FC243F1-318E-4FA9-9EBD-2CA3A8F35425} = {2F906640-1664-4960-93D2-A054AC6E66A3}
{1715C2B7-5C35-4F8B-9D9B-8D68A3D5284D} = {2F906640-1664-4960-93D2-A054AC6E66A3}
{12D761EF-68DF-41CE-92EF-0C7AE81857A3} = {2F906640-1664-4960-93D2-A054AC6E66A3}
EndGlobalSection
GlobalSection(TestCaseManagementSettings) = postSolution
CategoryFile = NTwain.vsmdi

50
NTwain/AsyncPump.cs Normal file
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@ -0,0 +1,50 @@
//using System;
//using System.Collections.Generic;
//using System.Linq;
//using System.Text;
//using System.Threading;
//using System.Windows.Threading;
//namespace NTwain
//{
// // from http://blogs.msdn.com/b/pfxteam/archive/2012/01/20/10259049.aspx
// /// <summary>
// /// Provides a pump that supports running asynchronous methods on the current thread.
// /// </summary>
// public static class AsyncPump
// {
// /// <summary>
// /// Runs the specified asynchronous function.
// /// </summary>
// /// <param name="func">The asynchronous function to execute.</param>
// /// <exception cref="System.ArgumentNullException">func</exception>
// /// <exception cref="System.InvalidOperationException">No task provided.</exception>
// public static void Run(Func<Task> func)
// {
// if (func == null) throw new ArgumentNullException("func");
// var prevCtx = SynchronizationContext.Current;
// try
// {
// var syncCtx = new DispatcherSynchronizationContext();
// SynchronizationContext.SetSynchronizationContext(syncCtx);
// var t = func();
// if (t == null) throw new InvalidOperationException();
// var frame = new DispatcherFrame();
// t.ContinueWith(_ => { frame.Continue = false; },
// TaskScheduler.Default);
// Dispatcher.PushFrame(frame);
// t.GetAwaiter().GetResult();
// }
// finally
// {
// SynchronizationContext.SetSynchronizationContext(prevCtx);
// }
// }
// }
//}

1
NTwain/NTwain.csproj
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@ -53,6 +53,7 @@
<Reference Include="WindowsBase" />
</ItemGroup>
<ItemGroup>
<Compile Include="AsyncPump.cs" />
<Compile Include="Data\TypesExtended.cs" />
<Compile Include="DeviceEventArgs.cs" />
<Compile Include="Extensions.cs" />

7
NTwain/TwainSession.cs
View File

@ -309,10 +309,7 @@ namespace NTwain
/// <exception cref="ArgumentNullException">context</exception>
public ReturnCode EnableSource(SourceEnableMode mode, bool modal, HandleRef windowHandle, SynchronizationContext context)
{
if (Environment.OSVersion.Platform == PlatformID.Win32NT)
{
if (context == null) { throw new ArgumentNullException("context"); }
}
if (context == null) { throw new ArgumentNullException("context"); }
Debug.WriteLine(string.Format("Thread {0}: EnableSource.", Thread.CurrentThread.ManagedThreadId));
@ -378,6 +375,8 @@ namespace NTwain
/// <summary>
/// Forces the stepping down of an opened source when things gets out of control.
/// Used when session state and source state become out of sync.
/// This should be called on the Thread that originally called the <see cref="EnableSource"/>
/// method, if applicable.
/// </summary>
/// <param name="targetState">State of the target.</param>
public void ForceStepDown(int targetState)

106
Tests/Tester.Console/Program.cs Normal file
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@ -0,0 +1,106 @@
using NTwain;
using NTwain.Data;
using NTwain.Values;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;
using System.Windows.Threading;
namespace Tester
{
class Program
{
static void Main(string[] args)
{
// just an amusing example to do twain in console without UI, but may not work in real life
Console.WriteLine("Running Main on thread {0}", Thread.CurrentThread.ManagedThreadId);
new Thread(new ParameterizedThreadStart(DoTwainWork)).Start(Dispatcher.CurrentDispatcher);
// basically just needs a msg loop to act as the UI thread
Dispatcher.Run();
Console.WriteLine("Test completed.");
Console.ReadLine();
}
static readonly TwainSession twain = InitTwain();
private static TwainSession InitTwain()
{
var twain = new TwainSession(TWIdentity.CreateFromAssembly(DataGroups.Image, Assembly.GetExecutingAssembly()));
twain.DataTransferred += twain_DataTransferred;
twain.TransferReady += twain_TransferReady;
twain.SourceDisabled += twain_SourceDisabled;
return twain;
}
static void DoTwainWork(object obj)
{
Console.WriteLine("Getting ready to do twain stuff on thread {0}", Thread.CurrentThread.ManagedThreadId);
Thread.Sleep(1000);
var mySyncer = SynchronizationContext.Current;
if (mySyncer == null)
{
mySyncer = new DispatcherSynchronizationContext(obj as Dispatcher);
}
var rc = twain.OpenManager(default(HandleRef));
if (rc == ReturnCode.Success)
{
rc = twain.OpenSource("TWAIN2 FreeImage Software Scanner");
if (rc == ReturnCode.Success)
{
// enablesource must be on the thread the sync context works on
mySyncer.Post(blah =>
{
rc = twain.EnableSource(SourceEnableMode.NoUI, false, default(HandleRef), blah as SynchronizationContext);
}, mySyncer);
return;
}
else
{
twain.CloseManager();
}
}
Dispatcher.ExitAllFrames();
}
static void twain_SourceDisabled(object sender, EventArgs e)
{
Console.WriteLine("Source disabled on thread {0}", Thread.CurrentThread.ManagedThreadId);
var rc = twain.CloseSource();
rc = twain.CloseManager();
Dispatcher.ExitAllFrames();
}
static void twain_TransferReady(object sender, TransferReadyEventArgs e)
{
Console.WriteLine("Got xfer ready on thread {0}", Thread.CurrentThread.ManagedThreadId);
}
static void twain_DataTransferred(object sender, DataTransferredEventArgs e)
{
if (e.Data != IntPtr.Zero)
{
Console.WriteLine("Got twain data on thread {0}", Thread.CurrentThread.ManagedThreadId);
}
else
{
Console.WriteLine("No twain data on thread {0}", Thread.CurrentThread.ManagedThreadId);
}
}
}
}

36
Tests/Tester.Console/Properties/AssemblyInfo.cs Normal file
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@ -0,0 +1,36 @@
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
// General Information about an assembly is controlled through the following
// set of attributes. Change these attribute values to modify the information
// associated with an assembly.
[assembly: AssemblyTitle("Tester.Console")]
[assembly: AssemblyDescription("Console app for quick testing implementations in the TWAIN lib.")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("Yin-Chun Wang")]
[assembly: AssemblyProduct("Tester.Console")]
[assembly: AssemblyCopyright("Copyright © Yin-Chun Wang 2014")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]
// Setting ComVisible to false makes the types in this assembly not visible
// to COM components. If you need to access a type in this assembly from
// COM, set the ComVisible attribute to true on that type.
[assembly: ComVisible(false)]
// The following GUID is for the ID of the typelib if this project is exposed to COM
[assembly: Guid("c27df82d-5be9-4396-8905-0af6ea6e63cd")]
// Version information for an assembly consists of the following four values:
//
// Major Version
// Minor Version
// Build Number
// Revision
//
// You can specify all the values or you can default the Build and Revision Numbers
// by using the '*' as shown below:
// [assembly: AssemblyVersion("1.0.*")]
[assembly: AssemblyVersion("1.0.0.0")]
[assembly: AssemblyFileVersion("1.0.0.0")]

62
Tests/Tester.Console/Tester.Console.csproj Normal file
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@ -0,0 +1,62 @@
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
<PropertyGroup>
<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
<ProjectGuid>{12D761EF-68DF-41CE-92EF-0C7AE81857A3}</ProjectGuid>
<OutputType>Exe</OutputType>
<AppDesignerFolder>Properties</AppDesignerFolder>
<RootNamespace>Tester</RootNamespace>
<AssemblyName>Tester.Console</AssemblyName>
<TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
<FileAlignment>512</FileAlignment>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
<PlatformTarget>x86</PlatformTarget>
<DebugSymbols>true</DebugSymbols>
<DebugType>full</DebugType>
<Optimize>false</Optimize>
<OutputPath>bin\Debug\</OutputPath>
<DefineConstants>DEBUG;TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
<PlatformTarget>x86</PlatformTarget>
<DebugType>pdbonly</DebugType>
<Optimize>true</Optimize>
<OutputPath>bin\Release\</OutputPath>
<DefineConstants>TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<ItemGroup>
<Reference Include="System" />
<Reference Include="System.Core" />
<Reference Include="System.Xml.Linq" />
<Reference Include="System.Data.DataSetExtensions" />
<Reference Include="Microsoft.CSharp" />
<Reference Include="System.Data" />
<Reference Include="System.Xml" />
<Reference Include="WindowsBase" />
</ItemGroup>
<ItemGroup>
<Compile Include="Program.cs" />
<Compile Include="Properties\AssemblyInfo.cs" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\..\NTwain\NTwain.csproj">
<Project>{0c5a6fb1-0282-4d61-8354-68deb1515001}</Project>
<Name>NTwain</Name>
</ProjectReference>
</ItemGroup>
<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
<!-- To modify your build process, add your task inside one of the targets below and uncomment it.
Other similar extension points exist, see Microsoft.Common.targets.
<Target Name="BeforeBuild">
</Target>
<Target Name="AfterBuild">
</Target>
-->
</Project>