- Assembled all the required properties and events.

- Added a Test project - all tests successful.

SharpCliboard.Tests/App.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+    <startup> 
+
+    <supportedRuntime version="v2.0.50727"/></startup>
+</configuration>

SharpCliboard.Tests/MainForm.cs

@@ -0,0 +1,84 @@
+using System;
+using System.IO;
+using System.Drawing;
+using System.Windows.Forms;
+using System.Collections.Generic;
+
+using WK.Libraries.SharpClipboardNS;
+
+namespace SharpClipboardPreview.Tests
+{
+    public partial class MainForm : Form
+    {
+        public MainForm()
+        {
+            InitializeComponent();
+
+            chkMonitorClipboard.Checked = sharpClipboard1.MonitorClipboard;
+            chkObserveTexts.Checked = sharpClipboard1.ObservableFormats.Texts;
+            chkObserveFiles.Checked = sharpClipboard1.ObservableFormats.Files;
+            chkObserveImages.Checked = sharpClipboard1.ObservableFormats.Images;
+        }
+
+        private void sharpClipboard1_MonitorClipboardChanged(object sender, EventArgs e)
+        {
+            chkMonitorClipboard.Checked = sharpClipboard1.MonitorClipboard;
+        }
+
+        private void checkBox1_CheckedChanged(object sender, EventArgs e)
+        {
+            sharpClipboard1.MonitorClipboard = chkMonitorClipboard.Checked;
+        }
+
+        private void chkObserveTexts_CheckedChanged(object sender, EventArgs e)
+        {
+            sharpClipboard1.ObservableFormats.Texts = chkObserveTexts.Checked;
+        }
+
+        private void chkObserveImages_CheckedChanged(object sender, EventArgs e)
+        {
+            sharpClipboard1.ObservableFormats.Images = chkObserveImages.Checked;
+        }
+
+        private void chkObserveFiles_CheckedChanged(object sender, EventArgs e)
+        {
+            sharpClipboard1.ObservableFormats.Files = chkObserveFiles.Checked;
+        }
+
+        private void sharpClipboard1_ClipboardChanged(object sender, SharpClipboard.ClipboardChangedEventArgs e)
+        {
+            if (e.ContentType == WK.Libraries.SharpClipboardNS.SharpClipboard.ContentTypes.Text)
+            {
+                txtCopiedTexts.Text = sharpClipboard1.ClipboardText;
+
+                // Alternatively, you can use:
+                // ---------------------------
+                // txtCopiedTexts.Text = (string)e.Content;
+            }
+            else if (e.ContentType == SharpClipboard.ContentTypes.Image)
+            {
+                pbCopiedImage.Image = sharpClipboard1.ClipboardImage;
+
+                // Alternatively, you can use:
+                // ---------------------------
+                // pbCopiedImage.Image = (Image)e.Content;
+            }
+            else if (e.ContentType == SharpClipboard.ContentTypes.Files)
+            {
+                List<string> files = new List<string>();
+
+                foreach (string file in sharpClipboard1.ClipboardFiles)
+                {
+                    files.Add(Path.GetFileName(file));
+                }
+
+                lstCopiedFiles.Items.Clear();
+                lstCopiedFiles.Items.AddRange(files.ToArray());
+
+                // Alternatively, you can use:
+                // ---------------------------
+                // lstCopiedFiles.Items.AddRange(((List<string>)e.Content).ToArray()));
+            }
+        }
+    }
+}

SharpCliboard.Tests/Program.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Windows.Forms;
+
+namespace SharpClipboardPreview.Tests
+{
+    static class Program
+    {
+        /// <summary>
+        /// The main entry point for the application.
+        /// </summary>
+        [STAThread]
+        static void Main()
+        {
+            Application.EnableVisualStyles();
+            Application.SetCompatibleTextRenderingDefault(false);
+            Application.Run(new MainForm());
+        }
+    }
+}

SharpCliboard.Tests/Properties/AssemblyInfo.cs

@@ -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("SharpClipboard Tests")]
+[assembly: AssemblyDescription("A testing project for the SharpClipboard library.")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("Willy Kimura")]
+[assembly: AssemblyProduct("SharpCliboard - Testing Project")]
+[assembly: AssemblyCopyright("Copyright ©  2019, Willy Kimura.")]
+[assembly: AssemblyTrademark("A product of Willy Kimura.")]
+[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("86f8eac7-259d-4a2f-842d-aa93163293c0")]
+
+// 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")]

SharpCliboard.Tests/Properties/Resources.resx

@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

SharpCliboard.Tests/Properties/Settings.settings

@@ -0,0 +1,7 @@
+<?xml version='1.0' encoding='utf-8'?>
+<SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)">
+  <Profiles>
+    <Profile Name="(Default)" />
+  </Profiles>
+  <Settings />
+</SettingsFile>