如何获取窗口当前的显示大小、位置等属性

import window from '@ohos.window'; 
try { 
  let windowClass: window.Window = window.findWindow("test"); 
  let properties = windowClass.getWindowProperties(); 
} catch (exception) { 
  console.error('Failed to obtain the window properties. Cause: ' + JSON.stringify(exception)); 
}