HarmonyOS RichEditor 是否能控制关闭修改删除文本功能？

@Entry  
@Component  
struct RichEditorExample {  
  controller: RichEditorController = new RichEditorController()  
  
  build() {  
    Column() {  
      RichEditor({ controller: this.controller })  
        // 绑定自定义键盘  
        .height(200)  
        .borderWidth(1)  
        .borderColor(Color.Red)  
        .width("100%")  
        .aboutToIMEInput((value: RichEditorInsertValue) => {  
          return false;  
        })  
        .aboutToDelete((value: RichEditorDeleteValue) => {  
          return false;  
        })  
    }  
  }  
}