Get Current Location (as specified in Region and Language) in C#

Question

How can I get machine's current location as specified in Region and Language of the OS? I have already tried getting this from the RegionInfo class but it returns Location as specified in Format drop down of Region and Language.

Just to clarify what I mean, If you open Region And Language from Control Panel of your machine, I want to read Location as specified in Location tab. RegionInfo gives me value as specified in Format dropdown of Formats tab.

Answer 1

After lot of googling, finally i got the answer. Following two links help me get the current machine location-

http://social.msdn.microsoft.com/Forums/eu/csharpgeneral/thread/6dfaa142-c588-4cb0-b044-fa1e8138b299

http://www.siao2.com/2007/02/21/1733999.aspx

I made the following utility class if anybody is interested in final code-

public static class RegionAndLanguageHelper
{
    #region Constants

    private const int GEO_FRIENDLYNAME = 8;

    #endregion

    #region Private Enums

    private enum GeoClass : int
    {
        Nation = 16,
        Region = 14,
    };

    #endregion

    #region Win32 Declarations

    [DllImport("kernel32.dll", ExactSpelling = true, CallingConvention = CallingConvention.StdCall, SetLastError = true)]
    private static extern int GetUserGeoID(GeoClass geoClass);

    [DllImport("kernel32.dll")]
    private static extern int GetUserDefaultLCID();

    [DllImport("kernel32.dll")]
    private static extern int GetGeoInfo(int geoid, int geoType, StringBuilder lpGeoData, int cchData, int langid);

    #endregion

    #region Public Methods

    /// <summary>
    /// Returns machine current location as specified in Region and Language settings.
    /// </summary>
    public static string GetMachineCurrentLocation()
    {
        int geoId = GetUserGeoID(GeoClass.Nation); ;
        int lcid = GetUserDefaultLCID();
        StringBuilder locationBuffer = new StringBuilder(100);
        GetGeoInfo(geoId, GEO_FRIENDLYNAME, locationBuffer, locationBuffer.Capacity, lcid);

        return locationBuffer.ToString().Trim();
    }

    #endregion
}

Answer 2

Can you try using

RegionInfo.CurrentRegion.DisplayName;

Does this give you the required Location name as you intend

Answer 3

Base on "Control Panel > Region > Home Location", you can get RegionInfo. Try this -

var regKeyGeoId = Microsoft.Win32.Registry.CurrentUser.OpenSubKey(@"Control Panel\International\Geo");
var geoID = (string)regKeyGeoId.GetValue("Nation");
var allRegions = CultureInfo.GetCultures(CultureTypes.SpecificCultures).Select(x => new RegionInfo(x.ToString()));
var regionInfo = allRegions.FirstOrDefault(r => r.GeoId == Int32.Parse(geoID));