Add 64bit tester and fixed version # in builds by switching to v6 sdk.

samples/WinForm32/Form1.Designer.cs

@@ -1,4 +1,4 @@
-namespace WinForm32
+namespace WinFormSample
 {
   partial class Form1
   {

samples/WinForm32/Form1.cs

@@ -6,7 +6,7 @@ using System.Diagnostics;
 using System.Reflection;
 using System.Windows.Forms;
 
-namespace WinForm32
+namespace WinFormSample
 {
   public partial class Form1 : Form
   {
@@ -15,7 +15,9 @@ namespace WinForm32
     public Form1()
     {
       InitializeComponent();
-      Text += TwainPlatform.Is32bit ? " 32bit" : " 64bit";
+      var libVer = FileVersionInfo.GetVersionInfo(typeof(TwainAppSession).Assembly.Location).FileVersion;
+      Text += $"{(TwainPlatform.Is32bit ? " 32bit" : " 64bit")} on NTwain {libVer}";
+      
       TwainPlatform.PreferLegacyDSM = false;
 
       twain = new TwainAppSession(new WinformMarshaller(this), Assembly.GetExecutingAssembly().Location);

samples/WinForm32/Program.cs

@@ -1,7 +1,7 @@
 using System;
 using System.Windows.Forms;
 
-namespace WinForm32
+namespace WinFormSample
 {
   internal static class Program
   {

samples/WinForm32/WinForm32.csproj

@@ -6,10 +6,17 @@
 		<Nullable>enable</Nullable>
 		<UseWindowsForms>true</UseWindowsForms>
 		<PlatformTarget>x86</PlatformTarget>
+    <RootNamespace>WinFormSample</RootNamespace>
 	</PropertyGroup>
 
 	<ItemGroup>
 	  <ProjectReference Include="..\..\src\NTwain\NTwain.csproj" />
 	</ItemGroup>
 
+	<ItemGroup>
+	  <None Update="platforms\qwindows.dll">
+	    <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+	  </None>
+	</ItemGroup>
+
 </Project>

samples/WinForm64/WinForm64.csproj

@@ -0,0 +1,30 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net6.0-windows</TargetFramework>
+    <Nullable>enable</Nullable>
+    <UseWindowsForms>true</UseWindowsForms>
+    <PlatformTarget>x64</PlatformTarget>
+    <RootNamespace>WinFormSample</RootNamespace>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\src\NTwain\NTwain.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Compile Include="..\WinForm32\**\*.cs" Exclude="..\WinForm32\**\obj\**;..\WinForm32\**\bin\**">
+      <Link>%(RecursiveDir)%(Filename)%(Extension)</Link>
+    </Compile>
+    <EmbeddedResource Include="..\WinForm32\**\*.resx" Exclude="..\WinForm32\**\obj\**;..\WinForm32\**\bin\**">
+      <Link>%(RecursiveDir)%(Filename)%(Extension)</Link>
+    </EmbeddedResource>
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Update="platforms\qwindows.dll">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+</Project>