C# 语言更改后立即访问CurrentInputLanguage属性时不会更新

请查看下面的代码，以便更好地理解我的确切意思：

using System;
using System.Windows.Forms;

namespace CurrentInputLanguageTest
{
    static class Program
    {
        [STAThread]
        static void Main()
        {
            Console.WriteLine(InputLanguage.CurrentInputLanguage.LayoutName); // It's US
            Console.ReadLine(); // Changed my keyboard layout while typing something
            Console.WriteLine(InputLanguage.CurrentInputLanguage.LayoutName); // It's still US

            var form = new Form();
            var button = new Button();
            button.Click += CheckInputLanguage;
            form.Controls.Add(button);
            Application.Run(form);
        }

        static void CheckInputLanguage(object sender, EventArgs e)
        {
            // I have changed my input language while the form is opened and pressed the button.
            // It changes when called in this event handler.
            Console.WriteLine(InputLanguage.CurrentInputLanguage.LayoutName); 
        }
    }
}

---

问题：我的应用程序中有一些事件处理程序，我需要知道触发事件时当前的输入语言是什么。如何执行此操作？

它总是返回我们的原因是因为您在命令中，并且只有该输入行的设置发生了更改

如果用户在显示表单时更改输入语言，则正确返回当前语言。但您也可以通过另一个按钮以编程方式设置is：

using System;
using System.Windows.Forms;

namespace CurrentInputLanguageTest
{
    static class Program
    {
        [STAThread]
        static void Main()
        {
            Console.WriteLine(InputLanguage.CurrentInputLanguage.LayoutName); // It's US
            Console.ReadLine(); // Changed my keyboard layout while typing something
            Console.WriteLine(Application.CurrentInputLanguage.LayoutName); // It's still US

            var form = new Form();
            var grid = new TableLayoutPanel();
            var button = new Button();
            var button2 = new Button();
            button2.Left = button.Right + 5;
            form.Refresh();
            button.Click += CheckInputLanguage;
            button2.Click += ChangeInputLanguage;
            form.Controls.Add(button);
            form.Controls.Add(button2);
            Application.Run(form);
        }

        private static void ChangeInputLanguage(object sender, EventArgs e)
        {
            InputLanguage.CurrentInputLanguage = InputLanguage.FromCulture(System.Globalization.CultureInfo.GetCultureInfo("en-US"));
        }

        static void CheckInputLanguage(object sender, EventArgs e)
        {
            // I have changed my input language while the form is opened and pressed the button.
            // It changes when called in this event handler.
            Console.WriteLine(InputLanguage.CurrentInputLanguage.LayoutName);
        }
    }
}

---

它总是返回我们的原因是因为您在命令中，并且只有该输入行的设置更改

如果用户在显示表单时更改输入语言，则正确返回当前语言。但您也可以通过另一个按钮以编程方式设置is：

using System;
using System.Windows.Forms;

namespace CurrentInputLanguageTest
{
    static class Program
    {
        [STAThread]
        static void Main()
        {
            Console.WriteLine(InputLanguage.CurrentInputLanguage.LayoutName); // It's US
            Console.ReadLine(); // Changed my keyboard layout while typing something
            Console.WriteLine(Application.CurrentInputLanguage.LayoutName); // It's still US

            var form = new Form();
            var grid = new TableLayoutPanel();
            var button = new Button();
            var button2 = new Button();
            button2.Left = button.Right + 5;
            form.Refresh();
            button.Click += CheckInputLanguage;
            button2.Click += ChangeInputLanguage;
            form.Controls.Add(button);
            form.Controls.Add(button2);
            Application.Run(form);
        }

        private static void ChangeInputLanguage(object sender, EventArgs e)
        {
            InputLanguage.CurrentInputLanguage = InputLanguage.FromCulture(System.Globalization.CultureInfo.GetCultureInfo("en-US"));
        }

        static void CheckInputLanguage(object sender, EventArgs e)
        {
            // I have changed my input language while the form is opened and pressed the button.
            // It changes when called in this event handler.
            Console.WriteLine(InputLanguage.CurrentInputLanguage.LayoutName);
        }
    }
}