ShellAbout function
Applies to: desktop apps only
Displays a ShellAbout dialog box.
Syntax
int ShellAbout( __in_opt HWND hWnd, __in LPCTSTR szApp, __in_opt LPCTSTR szOtherStuff, __in_opt HICON hIcon );
Parameters
- hWnd [in, optional]
-
Type: HWND
A window handle to a parent window. This parameter can be NULL.
- szApp [in]
-
Type: LPCTSTR
A pointer to a null-terminated string that contains text to be displayed in the title bar of the ShellAbout dialog box and on the first line of the dialog box after the text "Microsoft". If the text contains a separator (#) that divides it into two parts, the function displays the first part in the title bar and the second part on the first line after the text "Microsoft".
Windows 2000, Windows XP, Windows Server 2003: If the string pointed to by this parameter contains a separator (#), then the string must be writeable.
Windows Vista, Windows Server 2008: This string cannot exceed 200 characters in length.
- szOtherStuff [in, optional]
-
Type: LPCTSTR
A pointer to a null-terminated string that contains text to be displayed in the dialog box after the version and copyright information. This parameter can be NULL.
- hIcon [in, optional]
-
Type: HICON
The handle of an icon that the function displays in the dialog box. This parameter can be NULL, in which case the function displays the Windows icon.
Return value
Type: int
TRUE if successful; otherwise, FALSE.
Remarks
Note that the ShellAbout function dialog box uses text and a default icon that are specific to Windows.
To see an example of a ShellAbout dialog box, choose About Windows from the Help menu drop-down list in Windows Explorer.
Requirements
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Minimum supported client | Windows XP |
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Minimum supported server | Windows 2000 Server |
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Header |
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Library |
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DLL |
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Unicode and ANSI names | ShellAboutW (Unicode) and ShellAboutA (ANSI) |
Send comments about this topic to Microsoft
Build date: 3/7/2012
/// Displays a ShellAbout dialog box. (ANSI version)
/// </summary>
/// <remarks>
/// Note that the ShellAbout function dialog box uses text and a default icon that are specific to Windows. To see an example of a ShellAbout dialog box, choose About Windows from the Help menu drop-down list in Windows Explorer.
/// </remarks>
/// <param name="hWnd">A window handle to a parent window. This parameter can be NULL.</param>
/// <param name="szApp">A pointer to a null-terminated string that contains text to be displayed in the title bar of the ShellAbout dialog box and on the first line of the dialog box after the text "Microsoft". If the text contains a separator (#) that divides it into two parts, the function displays the first part in the title bar and the second part on the first line after the text "Microsoft". Windows 2000, Windows XP, Windows Server 2003: If the string pointed to by this parameter contains a separator (#), then the string must be writeable. Windows Vista, Windows Server 2008: This string cannot exceed 200 characters in length. </param>
/// <param name="szOtherStuff">A pointer to a null-terminated string that contains text to be displayed in the dialog box after the version and copyright information. This parameter can be NULL.</param>
/// <param name="hIcon">The handle of an icon that the function displays in the dialog box. This parameter can be NULL, in which case the function displays the Windows icon.</param>
/// <returns>TRUE if successful; otherwise, FALSE.</returns>
[DllImport("shell32.dll", CallingConvention = CallingConvention.Winapi, CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern int ShellAboutA(
[In] IntPtr hWnd,
[In] string szApp,
[In] string szOtherStuff,
[In] IntPtr hIcon);
/// <summary>
/// Displays a ShellAbout dialog box. (Unicode version)
/// </summary>
/// <remarks>
/// Note that the ShellAbout function dialog box uses text and a default icon that are specific to Windows. To see an example of a ShellAbout dialog box, choose About Windows from the Help menu drop-down list in Windows Explorer.
/// </remarks>
/// <param name="hWnd">A window handle to a parent window. This parameter can be NULL.</param>
/// <param name="szApp">A pointer to a null-terminated string that contains text to be displayed in the title bar of the ShellAbout dialog box and on the first line of the dialog box after the text "Microsoft". If the text contains a separator (#) that divides it into two parts, the function displays the first part in the title bar and the second part on the first line after the text "Microsoft". Windows 2000, Windows XP, Windows Server 2003: If the string pointed to by this parameter contains a separator (#), then the string must be writeable. Windows Vista, Windows Server 2008: This string cannot exceed 200 characters in length. </param>
/// <param name="szOtherStuff">A pointer to a null-terminated string that contains text to be displayed in the dialog box after the version and copyright information. This parameter can be NULL.</param>
/// <param name="hIcon">The handle of an icon that the function displays in the dialog box. This parameter can be NULL, in which case the function displays the Windows icon.</param>
/// <returns>TRUE if successful; otherwise, FALSE.</returns>
[DllImport("shell32.dll", CallingConvention = CallingConvention.Winapi, CharSet = CharSet.Unicode, ExactSpelling = true)]
static extern int ShellAboutW(
[In] IntPtr hWnd,
[In] string szApp,
[In] string szOtherStuff,
[In] IntPtr hIcon);
/// <summary>
/// Displays a ShellAbout dialog box. (Character set auto selection)
/// </summary>
/// <remarks>
/// Note that the ShellAbout function dialog box uses text and a default icon that are specific to Windows. To see an example of a ShellAbout dialog box, choose About Windows from the Help menu drop-down list in Windows Explorer.
/// </remarks>
/// <param name="hWnd">A window handle to a parent window. This parameter can be NULL.</param>
/// <param name="szApp">A pointer to a null-terminated string that contains text to be displayed in the title bar of the ShellAbout dialog box and on the first line of the dialog box after the text "Microsoft". If the text contains a separator (#) that divides it into two parts, the function displays the first part in the title bar and the second part on the first line after the text "Microsoft". Windows 2000, Windows XP, Windows Server 2003: If the string pointed to by this parameter contains a separator (#), then the string must be writeable. Windows Vista, Windows Server 2008: This string cannot exceed 200 characters in length. </param>
/// <param name="szOtherStuff">A pointer to a null-terminated string that contains text to be displayed in the dialog box after the version and copyright information. This parameter can be NULL.</param>
/// <param name="hIcon">The handle of an icon that the function displays in the dialog box. This parameter can be NULL, in which case the function displays the Windows icon.</param>
/// <returns>TRUE if successful; otherwise, FALSE.</returns>
[DllImport("shell32.dll", CallingConvention = CallingConvention.Winapi, CharSet = CharSet.Auto, ExactSpelling = false)]
static extern int ShellAbout(
[In] IntPtr hWnd,
[In] string szApp,
[In] string szOtherStuff,
[In] IntPtr hIcon);
- 8/12/2010
- Nam Jung Hyun
- 8/12/2010
- Nam Jung Hyun
- 5/25/2008
- Medinoc
The implementation of this function (under XP SP2 at least) appears to write to the szApp string if you use the # separator. If you use this format you should use it like this to ensure you're passing a writable string:
TCHAR Txt[] = TEXT("First part...#Second part...");
ShellAbout( hWnd, Txt, T("Other stuff..."), NULL );
- 3/4/2008
- David Lowndes