Event.character

Description

The character typed.

Used in EventType.KeyDown event. Note that EventType.KeyUp events might not contain a character, only Event.keyCode.

Additional resources: Event.keyCode.

using UnityEngine;

public class Example : MonoBehaviour
{
    void OnGUI()
    {
        Event e = Event.current;
        if (e.isKey)
        {
            Debug.Log("Detected character: " + e.character);
        }
    }
}