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Clipz - A Friendly Introduction to the Windows 7 Taskbar Features

, 17 Dec 2009
An overview of the Windows 7 taskbar features, and how to use then in your own applications.
Clipz.zip
Clipz
bin
Debug
Clipz.csproj.user
CopyIcon.ico
DeleteIcon.ico
Model
Native Methods
Properties
Settings.settings
Resources
Audio.png
Clipboard.png
NextIcon.ico
PreviousIcon.ico
Utility
Core
AppRestartRecovery
Dialogs
Common
TaskDialogs
Interop
AppRestartRecovery
Dialogs
NetworkList
PowerManagement
TaskDialogs
NetworkList
PowerManagement
Properties
PropertySystem
SafeHandles
Libraries
StructureMap.dll
Shell
Common
CommonFileDialogs
Controls
Design
ShellObjects.cd
ShellThumbnailClassDiagram.cd
DesktopWindowManager
ExplorerBrowser
ExplorerBrowserDiagram.cd
Interop
Common
Dialogs
ExplorerBrowser
KnownFolders
PropertySystem
StockIcons
Taskbar
KnownFolders
Properties
PropertySystem
StockIcons
Taskbar
//Copyright (c) Microsoft Corporation.  All rights reserved.

using System;
using System.Runtime.InteropServices;
using Microsoft.WindowsAPICodePack.Shell;
using Microsoft.WindowsAPICodePack.Shell.PropertySystem;
using MS.WindowsAPICodePack.Internal;

namespace Microsoft.WindowsAPICodePack.Taskbar
{
    /// <summary>
    /// Represents a separator in the user task list. The JumpListSeparator control
    /// can only be used in a user task list.
    /// </summary>
    public class JumpListSeparator : IJumpListTask, IDisposable
    {
        internal static PropertyKey PKEY_AppUserModel_IsDestListSeparator = SystemProperties.System.AppUserModel.IsDestListSeparator;
        
        /// <summary>
        /// Initializes a new instance of a JumpListSeparator.
        /// </summary>
        public JumpListSeparator()
        {
        }

        private IPropertyStore nativePropertyStore;
        private IShellLinkW nativeShellLink;
        /// <summary>
        /// Gets an IShellLinkW representation of this object
        /// </summary>
        internal IShellLinkW NativeShellLink
        {
            get
            {
                if (nativeShellLink != null)
                {
                    Marshal.ReleaseComObject(nativeShellLink);
                    nativeShellLink = null;
                }

                nativeShellLink = (IShellLinkW)new CShellLink();

                if (nativePropertyStore != null)
                {
                    Marshal.ReleaseComObject(nativePropertyStore);
                    nativePropertyStore = null;
                }

                nativePropertyStore = (IPropertyStore)nativeShellLink;

                PropVariant propVariant = new PropVariant();

                propVariant.SetBool(true);
                nativePropertyStore.SetValue(ref PKEY_AppUserModel_IsDestListSeparator, ref propVariant);
                propVariant.Clear();

                nativePropertyStore.Commit();

                return nativeShellLink;;
            }
        }


        #region IJumpListTask Members

        #endregion

        #region IDisposable Members

        /// <summary>
        /// Release the native and managed objects
        /// </summary>
        /// <param name="disposing">Indicates that this is being called from Dispose(), rather than the finalizer.</param>
        public void Dispose(bool disposing)
        {
            if (nativePropertyStore != null)
            {
                Marshal.ReleaseComObject(nativePropertyStore);
                nativePropertyStore = null;
            }

            if (nativeShellLink != null)
            {
                Marshal.ReleaseComObject(nativeShellLink);
                nativeShellLink = null;
            }
        }

        /// <summary>
        /// Release the native objects.
        /// </summary>
        public void Dispose()
        {
            Dispose(true);
            GC.SuppressFinalize(this);
        }

        /// <summary>
        /// Implement the finalizer.
        /// </summary>
        ~JumpListSeparator()
        {
            Dispose(false);
        }

        #endregion

    }
}

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This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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TylerBrinks
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Web02 | 2.8.140814.1 | Last Updated 17 Dec 2009
Article Copyright 2009 by TylerBrinks
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