实现单页面防截屏功能鸿蒙示例代码

 windowStage.getMainWindow((err: BusinessError, data) => {
  let errCode: number = err.code;
  if (errCode) {
  console.error('Failed to obtain the main window. Cause: ' + JSON.stringify(err));
  return;
  }
  const windowClass = data;
  console.info('Succeeded in obtaining the main window. Data: ' + JSON.stringify(data));
  AppStorage.setOrCreate("windowClass",windowClass)
})

@State windowClass: window.Window | null | undefined = AppStorage.get('windowClass')
aboutToAppear(): void {
    let isPrivacyMode: boolean = true
    if (this.windowClass) {
      this.windowClass.setWindowPrivacyMode(isPrivacyMode); // 设置防截屏录屏
    }
  }