InputLanguage Class
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InputLanguage Class


Provides methods and fields to manage the input language. This class cannot be inherited.

Namespace:   System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)


public sealed class InputLanguage


Gets the culture of the current input language.


Gets or sets the input language for the current thread.


Gets the default input language for the system.


Gets the handle for the input language.


Gets a list of all installed input languages.


Gets the name of the current keyboard layout as it appears in the regional settings of the operating system on the computer.


Specifies whether two input languages are equal.(Overrides Object.Equals(Object).)


Returns the input language associated with the specified culture.


Returns the hash code for this input language.(Overrides Object.GetHashCode().)


Gets the Type of the current instance.(Inherited from Object.)


Returns a string that represents the current object.(Inherited from Object.)

An input language is a culture/keyboard layout pair that determines how the physical keys on a keyboard map or plot to characters in a language. The input language is based on a Windows input locale identifier, such as that returned by the Platform SDK function, GetKeyboardLayout. The input locale identifier is also called a handle to a keyboard layout (HKL) value.

Use the static methods provided to find all installed mappings of the system and to change the input language for a thread or process. Call CurrentInputLanguage to get the current input language. Call DefaultInputLanguage for the default input language. Call InstalledInputLanguages to get all the installed languages in this system. After you have a list of all the installed languages, use CurrentInputLanguage to change the current input language to a different language.

Legacy Code Example

The following code example gets a list of installed languages. The example requires that textBox1 has been instantiated and that textBox1.MultiLine has been set to true.

public void GetLanguages() {
    // Gets the list of installed languages.
    foreach(InputLanguage lang in InputLanguage.InstalledInputLanguages) {
       textBox1.Text += lang.Culture.EnglishName + '\n';

The next example sets the default input language as the current input language. The example requires that textBox1 has been instantiated and that textBox1.MultiLine has been set to true.

public void SetNewCurrentLanguage() {
    // Gets the default, and current languages.
    InputLanguage myDefaultLanguage = InputLanguage.DefaultInputLanguage;
    InputLanguage myCurrentLanguage = InputLanguage.CurrentInputLanguage;
    textBox1.Text = "Current input language is: " + myCurrentLanguage.Culture.EnglishName + '\n';
    textBox1.Text += "Default input language is: " + myDefaultLanguage.Culture.EnglishName + '\n';

    // Changes the current input language to the default, and prints the new current language.
    InputLanguage.CurrentInputLanguage = myDefaultLanguage;
    textBox1.Text += "Current input language is now: " + myDefaultLanguage.Culture.EnglishName;

.NET Framework
Available since 1.1

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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