CefSharp 无法输入中文的问题

 1     protected override void OnGotFocus(RoutedEventArgs e)
 2     {
 3         InputMethod.SetIsInputMethodEnabled(this, true);
 4         InputMethod.SetIsInputMethodSuspended(this, true);
 5         base.OnGotFocus(e);
 6     }
 7 
 8     protected override void OnLostFocus(RoutedEventArgs e)
 9     {
10         base.OnLostFocus(e);
11         InputMethod.SetIsInputMethodEnabled(this, false);
12         InputMethod.SetIsInputMethodSuspended(this, false);
13     }