@msdn=http://search.microsoft.com/search/results.aspx?qu=$$$ @pinvoke=http://pinvoke.net/$$$.htm Summary: The EnumSystemCodePages API !!!!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: None. !!!!Notes: None. !!!!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> [STAThread] 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) { try { 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)); } return(true); } 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! Documentation: EnumSystemCodePages@msdn on MSDN
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