Desktop Functions:

   Smart Device Functions:

Show Recent Changes
Subscribe (RSS)
Misc. Pages
Helpful Tools
Suggested Reading
Website TODO List
Support Forum
Download Visual Studio Add-In

Terms of Use
Privacy Policy
enumsystemcodepages (kernel32)

C# Signature:

[DllImport("kernel32.dll", SetLastError=true)]
static extern bool EnumSystemCodePages(EnumCodePagesProcDlgt lpCodePageEnumProc,
   uint dwFlags);
const uint CP_INSTALLED = 1;  // Enumerate only installed code pages
const uint CP_SUPPORTED = 2;  // Enumerate all supported code pages
delegate bool EnumCodePagesProcDlgt(string lpCodePageString);

User-Defined Types:




Tips & Tricks:

I needed to enumerate the installed code pages on a Windows machine, and wanted to present the possible encoding interpretations to a user via a ComboBox. By using the Win32 API ::EnumSystemCodePages() via PInvoke, and the System.Text.Encoding.GetEncoding() static method, I could get the mapping from the code page to an Encoding instance which returns "pretty" names like 'Japanese (Shift-JIS)'.

Sample Code:

  class Class1
    /// <summary>
    /// The main entry point for the application.
    /// </summary>
    static void Main(string[] args)
      const uint CP_INSTALLED = 1;
      const uint CP_SUPPORTED = 2;

      EnumCodePagesProcDlgt dlgt = new EnumCodePagesProcDlgt(Class1.CodePageCallback);
      if (!EnumSystemCodePages(dlgt, CP_INSTALLED))
    int errno = Marshal.GetLastWin32Error();
    Debug.WriteLine(string.Format("EnumSystemCodePages failed with errno = {0}", errno));

    private static bool CodePageCallback(string codePageString)
    int cp = Convert.ToInt32(codePageString);
    Encoding enc = Encoding.GetEncoding(cp);
    Debug.WriteLine(string.Format("codePageString = '{0}' BodyName = '{1}' CodePage = {2} EncodingName = '{3}' HeaderName = '{4}' WindowsCodePage = {5}", codePageString, enc.BodyName, enc.CodePage, enc.EncodingName, enc.HeaderName, enc.WindowsCodePage));
      catch (Exception err)
    Debug.WriteLine(string.Format("ERROR: Failed to get encoding for '{0}'\n{1}", codePageString, err.Message));

    private delegate bool EnumCodePagesProcDlgt(string lpCodePageString);

    [DllImport("kernel32.dll", SetLastError=true)]
    private static extern bool EnumSystemCodePages(EnumCodePagesProcDlgt lpCodePageEnumProc, uint dwFlags);

Alternative Managed API:

Do you know one? Please contribute it!


Please edit this page!

Do you have...

  • helpful tips or sample code to share for using this API in managed code?
  • corrections to the existing content?
  • variations of the signature you want to share?
  • additional languages you want to include?

Select "Edit This Page" on the right hand toolbar and edit it! Or add new pages containing supporting types needed for this API (structures, delegates, and more).

Access directly from VS:
Terms of Use
Edit This Page
Find References
Show Printable Version