test

My project/Library/PackageCache/com.unity.inputsystem/InputSystem/Devices/ITextInputReceiver.cs

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+namespace UnityEngine.InputSystem.LowLevel
+{
+    /// <summary>
+    /// Interface for <see cref="InputDevice"/> classes that can receive text input events.
+    /// </summary>
+    /// <remarks>
+    /// This interface should be implemented by devices that are meant to receive text
+    /// input through <see cref="TextEvent"/>.
+    /// </remarks>
+    /// <seealso cref="TextEvent"/>
+    /// <seealso cref="IMECompositionEvent"/>
+    public interface ITextInputReceiver
+    {
+        /// <summary>
+        /// A single, fully-formed Unicode character has been typed on the device.
+        /// </summary>
+        /// <param name="character">Character that was typed. Note that in case the character is part of
+        /// a surrogate pair, this method is called first with the high surrogate and then with the
+        /// low surrogate character.</param>
+        /// <remarks>
+        /// This method is called on a device when a <see cref="TextEvent"/> is received
+        /// for the device. <paramref name="character"/> is the <see cref="TextEvent.character"/>
+        /// from the event.
+        ///
+        /// Note that this method will be called *twice* for a single <see cref="TextEvent"/>
+        /// in case the given UTF-32 (encoding in the event) needs to be represented as UTF-16
+        /// (encoding of <c>char</c> in C#) surrogate.
+        /// </remarks>
+        void OnTextInput(char character);
+
+        /// <summary>
+        /// Called when an IME composition is in-progress or finished.
+        /// </summary>
+        /// <param name="compositionString">The current composition.</param>
+        /// <seealso cref="IMECompositionEvent"/>
+        /// <seealso cref="Keyboard.onIMECompositionChange"/>
+        /// <remarks>
+        /// The method will be repeatedly called with the current string while composition is in progress.
+        /// Once composition finishes, the method will be called one more time with a blank composition
+        /// string.
+        /// </remarks>
+        void OnIMECompositionChanged(IMECompositionString compositionString);
+    }
+}