Clipz - A Friendly Introduction to the Windows 7 Taskbar Features

TylerBrinks
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17 Dec 2009CPOL9 min read
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An overview of the Windows 7 taskbar features, and how to use then in your own applications.
clipz.zip
- Clipz.sln
- Clipz
  - bin
    - Debug
  - Clipz.csproj
  - Clipz.csproj.user
  - CopyIcon.ico
  - DeleteIcon.ico
  - Form1.cs
  - Form1.Designer.cs
  - Form1.resx
  - Model
  - Native Methods
  - Program.cs
  - Properties
  - Resources
    - Audio.png
    - Clipboard.png
    - NextIcon.ico
    - PreviousIcon.ico
    - Resources.Designer.cs
    - Resources.resx
  - Utility
- Core
  - AppRestartRecovery
  - Core.csproj
  - Dialogs
    - Common
    - TaskDialogs
  - Interop
    - AppRestartRecovery
      - AppRestartRecoveryNativeMethods.cs
    - CommonDllNames.cs
    - CoreErrorHelper.cs
    - CoreHelpers.cs
    - CoreNativeMethods.cs
    - Dialogs
      - DialogShowState.cs
    - NetworkList
    - PowerManagement
      - PowerManagementNativeMethods.cs
    - TaskDialogs
  - NetworkList
  - PowerManagement
  - Properties
    - AssemblyInfo.cs
  - PropertySystem
  - SafeHandles
- Libraries
  - StructureMap.dll
- Shell
  - Common
  - CommonFileDialogs
  - Controls
  - Design
    - ShellObjects.cd
    - ShellThumbnailClassDiagram.cd
  - DesktopWindowManager
  - ExplorerBrowser
  - Interop
    - Common
    - Dialogs
      - DialogsCOMClasses.cs
      - DialogsCOMInterfaces.cs
    - ExplorerBrowser
    - KnownFolders
    - PropertySystem
      - PropertySystemCOMInterfaces.cs
      - PropertySystemNativeMethods.cs
    - StockIcons
      - StockIconsNativeMethods.cs
    - Taskbar
  - KnownFolders
  - Properties
    - AssemblyInfo.cs
  - PropertySystem
  - Shell.csproj
  - StockIcons
  - Taskbar
//Copyright (c) Microsoft Corporation.  All rights reserved.

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

namespace Microsoft.WindowsAPICodePack.Dialogs
{
// Disable warning if a method declaration hides another inherited from a parent COM interface
// To successfully import a COM interface, all inherited methods need to be declared again with 
// the exception of those already declared in "IUnknown"
#pragma warning disable 0108

    [ComImport(),
    Guid(ShellIIDGuid.IFileDialog),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    internal interface IFileDialog : IModalWindow
    {
        // Defined on IModalWindow - repeated here due to requirements of COM interop layer.
        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime),
        PreserveSig]
        int Show([In] IntPtr parent);

        // IFileDialog-Specific interface members.

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetFileTypes(
            [In] uint cFileTypes,
            [In, MarshalAs(UnmanagedType.LPArray)] ShellNativeMethods.COMDLG_FILTERSPEC[] rgFilterSpec);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetFileTypeIndex([In] uint iFileType);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetFileTypeIndex(out uint piFileType);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void Advise(
            [In, MarshalAs(UnmanagedType.Interface)] IFileDialogEvents pfde,
            out uint pdwCookie);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void Unadvise([In] uint dwCookie);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetOptions([In] ShellNativeMethods.FOS fos);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetOptions(out ShellNativeMethods.FOS pfos);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetDefaultFolder([In, MarshalAs(UnmanagedType.Interface)] IShellItem psi);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetFolder([In, MarshalAs(UnmanagedType.Interface)] IShellItem psi);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetFolder([MarshalAs(UnmanagedType.Interface)] out IShellItem ppsi);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetCurrentSelection([MarshalAs(UnmanagedType.Interface)] out IShellItem ppsi);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetFileName([In, MarshalAs(UnmanagedType.LPWStr)] string pszName);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetFileName([MarshalAs(UnmanagedType.LPWStr)] out string pszName);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetTitle([In, MarshalAs(UnmanagedType.LPWStr)] string pszTitle);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetOkButtonLabel([In, MarshalAs(UnmanagedType.LPWStr)] string pszText);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetFileNameLabel([In, MarshalAs(UnmanagedType.LPWStr)] string pszLabel);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetResult([MarshalAs(UnmanagedType.Interface)] out IShellItem ppsi);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void AddPlace([In, MarshalAs(UnmanagedType.Interface)] IShellItem psi, ShellNativeMethods.FDAP fdap);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetDefaultExtension([In, MarshalAs(UnmanagedType.LPWStr)] string pszDefaultExtension);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void Close([MarshalAs(UnmanagedType.Error)] int hr);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetClientGuid([In] ref Guid guid);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void ClearClientData();

        // Not supported:  IShellItemFilter is not defined, converting to IntPtr.
        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetFilter([MarshalAs(UnmanagedType.Interface)] IntPtr pFilter);
    }

    [ComImport(),
    Guid(ShellIIDGuid.IFileOpenDialog),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    internal interface IFileOpenDialog : IFileDialog
    {
        // Defined on IModalWindow - repeated here due to requirements of COM interop layer.
        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime),
        PreserveSig]
        int Show([In] IntPtr parent);

        // Defined on IFileDialog - repeated here due to requirements of COM interop layer.
        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetFileTypes([In] uint cFileTypes, [In] ref ShellNativeMethods.COMDLG_FILTERSPEC rgFilterSpec);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetFileTypeIndex([In] uint iFileType);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetFileTypeIndex(out uint piFileType);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void Advise(
            [In, MarshalAs(UnmanagedType.Interface)] IFileDialogEvents pfde,
            out uint pdwCookie);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void Unadvise([In] uint dwCookie);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetOptions([In] ShellNativeMethods.FOS fos);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetOptions(out ShellNativeMethods.FOS pfos);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetDefaultFolder([In, MarshalAs(UnmanagedType.Interface)] IShellItem psi);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetFolder([In, MarshalAs(UnmanagedType.Interface)] IShellItem psi);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetFolder([MarshalAs(UnmanagedType.Interface)] out IShellItem ppsi);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetCurrentSelection([MarshalAs(UnmanagedType.Interface)] out IShellItem ppsi);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetFileName([In, MarshalAs(UnmanagedType.LPWStr)] string pszName);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetFileName([MarshalAs(UnmanagedType.LPWStr)] out string pszName);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetTitle([In, MarshalAs(UnmanagedType.LPWStr)] string pszTitle);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetOkButtonLabel([In, MarshalAs(UnmanagedType.LPWStr)] string pszText);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetFileNameLabel([In, MarshalAs(UnmanagedType.LPWStr)] string pszLabel);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetResult([MarshalAs(UnmanagedType.Interface)] out IShellItem ppsi);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void AddPlace([In, MarshalAs(UnmanagedType.Interface)] IShellItem psi, ShellNativeMethods.FDAP fdap);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetDefaultExtension([In, MarshalAs(UnmanagedType.LPWStr)] string pszDefaultExtension);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void Close([MarshalAs(UnmanagedType.Error)] int hr);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetClientGuid([In] ref Guid guid);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void ClearClientData();

        // Not supported:  IShellItemFilter is not defined, converting to IntPtr.
        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetFilter([MarshalAs(UnmanagedType.Interface)] IntPtr pFilter);

        // Defined by IFileOpenDialog.
        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetResults([MarshalAs(UnmanagedType.Interface)] out IShellItemArray ppenum);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetSelectedItems([MarshalAs(UnmanagedType.Interface)] out IShellItemArray ppsai);
    }

    [ComImport(),
    Guid(ShellIIDGuid.IFileSaveDialog),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    internal interface IFileSaveDialog : IFileDialog
    {
        // Defined on IModalWindow - repeated here due to requirements of COM interop layer.
        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime),
        PreserveSig]
        int Show([In] IntPtr parent);

        // Defined on IFileDialog - repeated here due to requirements of COM interop layer.
        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetFileTypes(
            [In] uint cFileTypes,
            [In] ref ShellNativeMethods.COMDLG_FILTERSPEC rgFilterSpec);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetFileTypeIndex([In] uint iFileType);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetFileTypeIndex(out uint piFileType);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void Advise(
            [In, MarshalAs(UnmanagedType.Interface)] IFileDialogEvents pfde,
            out uint pdwCookie);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void Unadvise([In] uint dwCookie);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetOptions([In] ShellNativeMethods.FOS fos);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetOptions(out ShellNativeMethods.FOS pfos);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetDefaultFolder([In, MarshalAs(UnmanagedType.Interface)] IShellItem psi);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetFolder([In, MarshalAs(UnmanagedType.Interface)] IShellItem psi);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetFolder([MarshalAs(UnmanagedType.Interface)] out IShellItem ppsi);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetCurrentSelection([MarshalAs(UnmanagedType.Interface)] out IShellItem ppsi);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetFileName([In, MarshalAs(UnmanagedType.LPWStr)] string pszName);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetFileName([MarshalAs(UnmanagedType.LPWStr)] out string pszName);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetTitle([In, MarshalAs(UnmanagedType.LPWStr)] string pszTitle);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetOkButtonLabel([In, MarshalAs(UnmanagedType.LPWStr)] string pszText);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetFileNameLabel([In, MarshalAs(UnmanagedType.LPWStr)] string pszLabel);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetResult([MarshalAs(UnmanagedType.Interface)] out IShellItem ppsi);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void AddPlace(
            [In, MarshalAs(UnmanagedType.Interface)] IShellItem psi,
            ShellNativeMethods.FDAP fdap);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetDefaultExtension([In, MarshalAs(UnmanagedType.LPWStr)] string pszDefaultExtension);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void Close([MarshalAs(UnmanagedType.Error)] int hr);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetClientGuid([In] ref Guid guid);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void ClearClientData();

        // Not supported:  IShellItemFilter is not defined, converting to IntPtr.
        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetFilter([MarshalAs(UnmanagedType.Interface)] IntPtr pFilter);

        // Defined by IFileSaveDialog interface.

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetSaveAsItem([In, MarshalAs(UnmanagedType.Interface)] IShellItem psi);

        // Not currently supported: IPropertyStore.
        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetProperties([In, MarshalAs(UnmanagedType.Interface)] IntPtr pStore);

        [PreserveSig]
        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        int SetCollectedProperties(
            [In] IPropertyDescriptionList pList,
            [In] bool fAppendDefault);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        [PreserveSig]
        HRESULT GetProperties(out IPropertyStore ppStore);

        // Not currently supported: IPropertyStore, IFileOperationProgressSink.
        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void ApplyProperties(
            [In, MarshalAs(UnmanagedType.Interface)] IShellItem psi,
            [In, MarshalAs(UnmanagedType.Interface)] IntPtr pStore,
            [In, ComAliasName("ShellObjects.wireHWND")] ref IntPtr hwnd,
            [In, MarshalAs(UnmanagedType.Interface)] IntPtr pSink);
    }

    [ComImport,
    Guid(ShellIIDGuid.IFileDialogEvents),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    internal interface IFileDialogEvents
    {
        // NOTE: some of these callbacks are cancelable - returning S_FALSE means that 
        // the dialog should not proceed (e.g. with closing, changing folder); to 
        // support this, we need to use the PreserveSig attribute to enable us to return
        // the proper HRESULT.

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime),
        PreserveSig]
        HRESULT OnFileOk([In, MarshalAs(UnmanagedType.Interface)] IFileDialog pfd);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime),
        PreserveSig]
        HRESULT OnFolderChanging(
            [In, MarshalAs(UnmanagedType.Interface)] IFileDialog pfd,
            [In, MarshalAs(UnmanagedType.Interface)] IShellItem psiFolder);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void OnFolderChange([In, MarshalAs(UnmanagedType.Interface)] IFileDialog pfd);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void OnSelectionChange([In, MarshalAs(UnmanagedType.Interface)] IFileDialog pfd);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void OnShareViolation(
            [In, MarshalAs(UnmanagedType.Interface)] IFileDialog pfd,
            [In, MarshalAs(UnmanagedType.Interface)] IShellItem psi,
            out ShellNativeMethods.FDE_SHAREVIOLATION_RESPONSE pResponse);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void OnTypeChange([In, MarshalAs(UnmanagedType.Interface)] IFileDialog pfd);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void OnOverwrite([In, MarshalAs(UnmanagedType.Interface)] IFileDialog pfd,
            [In, MarshalAs(UnmanagedType.Interface)] IShellItem psi,
            out ShellNativeMethods.FDE_OVERWRITE_RESPONSE pResponse);
    }

    [ComImport,
    Guid(ShellIIDGuid.IFileDialogCustomize),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    internal interface IFileDialogCustomize
    {
        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void EnableOpenDropDown([In] int dwIDCtl);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void AddMenu(
            [In] int dwIDCtl,
            [In, MarshalAs(UnmanagedType.LPWStr)] string pszLabel);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void AddPushButton(
            [In] int dwIDCtl,
            [In, MarshalAs(UnmanagedType.LPWStr)] string pszLabel);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void AddComboBox([In] int dwIDCtl);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void AddRadioButtonList([In] int dwIDCtl);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void AddCheckButton(
            [In] int dwIDCtl,
            [In, MarshalAs(UnmanagedType.LPWStr)] string pszLabel,
            [In] bool bChecked);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void AddEditBox(
            [In] int dwIDCtl,
            [In, MarshalAs(UnmanagedType.LPWStr)] string pszText);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void AddSeparator([In] int dwIDCtl);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void AddText(
            [In] int dwIDCtl,
            [In, MarshalAs(UnmanagedType.LPWStr)] string pszText);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetControlLabel(
            [In] int dwIDCtl,
            [In, MarshalAs(UnmanagedType.LPWStr)] string pszLabel);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetControlState(
            [In] int dwIDCtl,
            [Out] out ShellNativeMethods.CDCONTROLSTATE pdwState);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetControlState(
            [In] int dwIDCtl,
            [In] ShellNativeMethods.CDCONTROLSTATE dwState);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetEditBoxText(
            [In] int dwIDCtl,
            [MarshalAs(UnmanagedType.LPWStr)] out string ppszText);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetEditBoxText(
            [In] int dwIDCtl,
            [In, MarshalAs(UnmanagedType.LPWStr)] string pszText);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetCheckButtonState(
            [In] int dwIDCtl,
            [Out] out bool pbChecked);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetCheckButtonState(
            [In] int dwIDCtl,
            [In] bool bChecked);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void AddControlItem(
            [In] int dwIDCtl,
            [In] int dwIDItem,
            [In, MarshalAs(UnmanagedType.LPWStr)] string pszLabel);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void RemoveControlItem(
            [In] int dwIDCtl,
            [In] int dwIDItem);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void RemoveAllControlItems([In] int dwIDCtl);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetControlItemState(
            [In] int dwIDCtl,
            [In] int dwIDItem,
            [Out] out ShellNativeMethods.CDCONTROLSTATE pdwState);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetControlItemState(
            [In] int dwIDCtl,
            [In] int dwIDItem,
            [In] ShellNativeMethods.CDCONTROLSTATE dwState);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void GetSelectedControlItem(
            [In] int dwIDCtl,
            [Out] out int pdwIDItem);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void SetSelectedControlItem(
            [In] int dwIDCtl,
            [In] int dwIDItem); // Not valid for OpenDropDown.

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void StartVisualGroup(
            [In] int dwIDCtl,
            [In, MarshalAs(UnmanagedType.LPWStr)] string pszLabel);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void EndVisualGroup();

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void MakeProminent([In] int dwIDCtl);
    }

    [ComImport,
    Guid(ShellIIDGuid.IFileDialogControlEvents),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    internal interface IFileDialogControlEvents
    {
        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void OnItemSelected(
            [In, MarshalAs(UnmanagedType.Interface)] IFileDialogCustomize pfdc,
            [In] int dwIDCtl,
            [In] int dwIDItem);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void OnButtonClicked(
            [In, MarshalAs(UnmanagedType.Interface)] IFileDialogCustomize pfdc,
            [In] int dwIDCtl);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void OnCheckButtonToggled(
            [In, MarshalAs(UnmanagedType.Interface)] IFileDialogCustomize pfdc,
            [In] int dwIDCtl,
            [In] bool bChecked);

        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
        void OnControlActivating(
            [In, MarshalAs(UnmanagedType.Interface)] IFileDialogCustomize pfdc,
            [In] int dwIDCtl);
    }
// Restore the warning
#pragma warning restore 0108

}
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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)
Written By
TylerBrinks
Web Developer PageLabs
United States
I'm the founder of PageLabs, a web-based performance and SEO optimization site.

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Clipz - A Friendly Introduction to the Windows 7 Taskbar Features

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