有没有办法在某个时刻转储Windows UI Automation树?

时间:2014-05-09 15:26:45

标签: user-interface tree ui-automation microsoft-ui-automation

我正在尝试调试我开发的一些脚本(使用Windows UI自动化支持来识别GUI对象),这些脚本间歇性地失败,因为它们无法在树中找到某些控件。我还使用屏幕截图来检查我正在测试的窗口的状态,似乎GUI中有控件,但我在树内的搜索找不到它们(即使在几秒钟的睡眠后)。当我使用inspect.exe检查树时,对象就在那里。

有没有办法转储该树以供日后分析?我到目前为止找到的唯一方法是递归地爬行整棵树,但这是不可行的,因为它需要花费大量的时间。

1 个答案:

答案 0 :(得分:2)

这是我的代码:

public static string DumpUIATree(this AutomationElement element, bool dumpFullInfo = false)
{
  var s = element.Name() + " : " + element.ControlType().ProgrammaticName;
  DumpChildrenRecursively(element, 1, ref s, dumpFullInfo);
  return s;
}

private static List<AutomationElement> GetChildNodes(this AutomationElement automationElement)
{
  var children = new List<AutomationElement>();
  TreeWalker walker = TreeWalker.ControlViewWalker;
  AutomationElement child = walker.GetFirstChild(automationElement);
  while (child != null)
  {
    children.Add(child);
    child = walker.GetNextSibling(child);
  }
  return children;
}

private static void DumpChildrenRecursively(AutomationElement node, int level, ref string s, bool dumpFullInfo = false)
{
  var children = node.GetChildNodes();
  foreach (var child in children)
  {
    if (child != null)
    {
      for (int i = 0; i < level; i++)
        s += "-";
      s += " " + child.Name() + " : " + child.ControlType().ProgrammaticName + "\r\n";

      if (dumpFullInfo)
      {
        foreach (var prop in child.GetSupportedProperties())
        {
          s += "   > " + prop.ProgrammaticName + " = " + child.GetCurrentPropertyValue(prop) + "\r\n";
        }

        s += "\r\n";
      }

      DumpChildrenRecursively(child, level + 1, ref s, dumpFullInfo);
    }
  }
}