Question

我正在运行Windows 10.当我打开＆＃34; Region＆amp;语言设置＆＃34;从开始菜单中，我可以选择一个＆＃34;国家或地区＆＃34;。我想在C＃程序中获得这个值。

我在丹麦。我曾尝试将我的国家改为德国（见screenshot），但我无法让我的代码返回德国。重新启动计算机没有帮助。

我写了一些受this thread启发的代码。

我的代码看起来像这样（一次尝试各种各样的东西，获得我能想到的所有地区/文化事物）：

private static void Main(string[] args)
{
    Thread.CurrentThread.CurrentCulture.ClearCachedData();
    Thread.CurrentThread.CurrentUICulture.ClearCachedData();
    var thread = new Thread(() => ((Action) (() =>
    {
        Console.WriteLine("Current culture: {0}", Thread.CurrentThread.CurrentCulture.Name);
        Console.WriteLine("Current UI culture: {0}", Thread.CurrentThread.CurrentUICulture.Name);
        Console.WriteLine("Installed UI culture: {0}", CultureInfo.InstalledUICulture.Name);
        Console.WriteLine("Current region: {0}", RegionInfo.CurrentRegion.ThreeLetterISORegionName);
        Console.WriteLine("System default LCID: {0}", GetSystemDefaultLCID());
    }))());
    thread.Start();
    thread.Join();
    Console.ReadKey();
}

[DllImport("kernel32.dll")]
private static extern uint GetSystemDefaultLCID();

输出：

Current culture: en-DK
Current UI culture: en-US
Installed UI culture: en-US
Current region: DNK
System default LCID: 1033

如何让我的程序检测到我选择了德国？我需要调用什么方法或属性？什么重启或缓存清理可能是必要的？

Answer 1

我在this thread找到了我的问题的答案。

我正在使用下面的代码，正如@SanjaySingh在该主题中所提出的那样，只是稍加修改。

如果我将GetMachineCurrentLocation参数设置为geoFriendlyname来调用5，我会得到我想要的三字母ISO区域代码（对于德国，这是"DEU"）。

可以找到geoFriendlyname的值here。

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>
    /// <param name="geoFriendlyname"></param>
    public static string GetMachineCurrentLocation(int geoFriendlyname)
    {
        int geoId = GetUserGeoID(GeoClass.Nation); ;
        int lcid = GetUserDefaultLCID();
        StringBuilder locationBuffer = new StringBuilder(100);
        GetGeoInfo(geoId, geoFriendlyname, locationBuffer, locationBuffer.Capacity, lcid);

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

    #endregion
}

Answer 2

Read msdn documentation: RegionInfo Properties

sizeof(char)

姓名：德朗   英文名称：德国
  DisplayName：德国

Answer 3

尝试

    var geographicRegion = new Windows.Globalization.GeographicRegion();
    var code = geographicRegion.CodeTwoLetter;

或

    var region = Windows.System.UserProfile.GlobalizationPreferences.HomeGeographicRegion;

Answer 4

比选择的答案短得多，并且不需要DllImports或ClearCachedData：

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));
Console.WriteLine("EnglishName:" + regionInfo.EnglishName);
Console.WriteLine("DisplayName:" + regionInfo.DisplayName);
Console.WriteLine("NativeName:" + regionInfo.NativeName);
Console.WriteLine("ISOCurrencySymbol:" + regionInfo.ISOCurrencySymbol);
Console.WriteLine("Name:" + regionInfo.Name);

这将读取您在Windows 10中“区域和语言”>“国家或地区”下设置的信息。

信用应该转到@Zan，因为我只是他的帖子的延伸：Get Current Location (as specified in Region and Language) in C#

在C＃中，如何获得＆＃34;国家或地区＆＃34;选择在＆＃34;地区＆amp;语言＆＃34;在Windows 10中？

4 个答案: