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How to display the Pick Icon Dialog

, 12 Jan 2000
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Explains how to display the windows 'Pick Icon' dialog
  • Download demo project - 12 Kb
  • Download source files - 1 Kb

    Sample Image - selecticon.gif

    We all know the Pick Icon common dialog that the Windows shell displays when you choose "Change icon". However, the function to do this is undocumented. This article explains how to use this common dialog.

    You bring up the dialog by calling the function PickIconDlg. This function is exported by ordinal from shell32.dll and has ordinal 62.

    However, the function has one drawback: it has a different signature in Windows NT and Windows 95/98. Therefore, i wrote a wrapper around the function that dynamically binds to shell32.dll and converts arguments when necessary.

    I provided two versions of the wrapper function: a Unicode version and an ANSI version.

    The function returns you the name of a the file that contains the icon and the index of the icon. This is a zero-based index, not a resource id. This means you can extract the icon with the function ExtractIcon.

    The following piece of code (from the accompanying sample project) shows how to call the wrapper function:

    if (::SelectIcon(m_hWnd, m_pszCurrentFile, MAX_PATH, &m_dwCurrentIndex))
    {
        m_hIcon = ::ExtractIcon(::AfxGetInstanceHandle(), 
            m_pszCurrentFile, m_dwCurrentIndex);
        SetIcon(m_hIcon, TRUE);
        SetIcon(m_hIcon, FALSE);
    }
    
  • License

    This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

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    About the Author

    Henk Devos
    Web Developer
    Belgium Belgium
    Henk studied computer science at the University of Ghent, specializing in theoretical computer science.
    He is now working for Artwork Systems, Belgium, and Whirling Dervishes Software, Belgium.
    Henk knows a little something about networking, graphics, object-oriented design, AI, embedded systems. He knows most of the PDF specs by heart.
    Henk developed NSELib, the NameSpace Extension Library.
    You can find his latest freeware software at regxplor.com. It contains a namespace extension that puts the registry in Windows Explorer. The newest commercial project is Alpha ZIP, an explorer-embedded ZIP file utility.

    Comments and Discussions

     
    QuestionHow did you figure out the signature ? PinmemberTom Collins9-Dec-03 4:13 

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