请问如何获取窗口的宽度

import { window } from '@kit.ArkUI'; 
 
// 获取窗口对象 
async getWindowProperties(){ 
  let windowClass = await window.getLastWindow(getContext()); 
  // 获取窗口属性 
  let properties = windowClass.getWindowProperties(); 
  // 获取窗口宽高 
  console.log("width: "+ properties.windowRect.width); 
  console.log("height: "+ properties.windowRect.height); 
}