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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 System.Security;
using MS.WindowsAPICodePack.Internal;

namespace MS.WindowsAPICodePack.Internal
{
    internal static class DWMMessages
    {
        internal const int WM_DWMCOMPOSITIONCHANGED = 0x031E;
        internal const int WM_DWMNCRENDERINGCHANGED = 0x031F;
    }
    
    [StructLayout( LayoutKind.Sequential )]
    internal struct MARGINS
    {
        public int cxLeftWidth;      // width of left border that retains its size
        public int cxRightWidth;     // width of right border that retains its size
        public int cyTopHeight;      // height of top border that retains its size
        public int cyBottomHeight;   // height of bottom border that retains its size

        public MARGINS( bool fullWindow )
        {
            cxLeftWidth = cxRightWidth = cyTopHeight = cyBottomHeight = (fullWindow ? -1 : 0);
        }
    };

    internal enum DwmBlurBehindDwFlags : uint
    {
        DWM_BB_ENABLE = 0x00000001,
        DWM_BB_BLURREGION = 0x00000002,
        DWM_BB_TRANSITIONONMAXIMIZED = 0x00000004
    }

    [StructLayout( LayoutKind.Sequential )]
    internal struct DWM_BLURBEHIND
    {
        public DwmBlurBehindDwFlags dwFlags;
        public bool fEnable;
        public IntPtr hRgnBlur;
        public bool fTransitionOnMaximized;
    };

    internal enum CompositionEnable : uint
    {
        DWM_EC_DISABLECOMPOSITION = 0,
        DWM_EC_ENABLECOMPOSITION = 1
    }
    
    /// <summary>
    /// Internal class that contains interop declarations for 
    /// functions that are not benign and are performance critical. 
    /// </summary>
    [SuppressUnmanagedCodeSecurity]
    internal static class DesktopWindowManagerNativeMethods
    {
        [DllImport( "DwmApi.dll" )]
        internal static extern int DwmEnableBlurBehindWindow(
            IntPtr hwnd,
            ref DWM_BLURBEHIND bb );

        [DllImport( "DwmApi.dll" )]
        internal static extern int DwmExtendFrameIntoClientArea(
            IntPtr hwnd,
            ref MARGINS m );

        [DllImport( "DwmApi.dll", PreserveSig = false )]
        internal static extern bool DwmIsCompositionEnabled( );

        [DllImport( "DwmApi.dll" )]
        internal static extern int DwmEnableComposition(
            CompositionEnable compositionAction );

        [DllImport( "user32.dll" )]
        [return: MarshalAs( UnmanagedType.Bool )]
        internal static extern bool GetWindowRect( IntPtr hwnd, ref CoreNativeMethods.RECT rect );

        [DllImport( "user32.dll" )]
        [return: MarshalAs( UnmanagedType.Bool )]
        internal static extern bool GetClientRect( IntPtr hwnd, ref CoreNativeMethods.RECT rect );
    }
}

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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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United States United States
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Web04 | 2.8.140926.1 | Last Updated 17 Dec 2009
Article Copyright 2009 by TylerBrinks
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