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社区首页 >问答首页 >AutomationElement使用Inspect.exe显示，但在使用UIAutomationCore.dll或System.Windows.Automation时不显示

问AutomationElement使用Inspect.exe显示，但在使用UIAutomationCore.dll或System.Windows.Automation时不显示
EN

Stack Overflow用户
提问于 2012-02-14 18:34:54
回答 1查看 23.7K关注 0票数 28

TL;DR：我做了什么错事，导致工作区窗格出现在检查对象中，但没有显示在我的自定义代码中？

我试图写一些UI自动化的第三方程序。我使用的是Windows附带的Windows，我已经尝试了System.Windows.Automation和DirectCOM调用(使用来自UIA验证的包装库)。

代码语言：javascript
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Process[] processes = Process.GetProcessesByName("Redacted Client");
if (processes.Length == 0) throw new Exception("Could not find \"Redacted Client\" process");

PropertyCondition parentFileCond = new PropertyCondition(AutomationElement.ProcessIdProperty, processes[0].Id);
PropertyCondition workspaceCond = new PropertyCondition(AutomationElement.NameProperty, "Workspace", PropertyConditionFlags.IgnoreCase);
PropertyCondition documentCond = new PropertyCondition(AutomationElement.NameProperty, "Untitled3", PropertyConditionFlags.IgnoreCase);

var parentElement = AutomationElement.RootElement.FindFirst(TreeScope.Children, parentFileCond);
var workspaceElement = parentElement.FindFirst(TreeScope.Children, workspaceCond); //Also does not work with TreeScope.Descendants
var documentElement = workspaceElement.FindFirst(TreeScope.Children, documentCond);

当我尝试上面的代码时，parentElement确实对主程序窗口有正确的引用，但是workspaceElement是空的。

临时解决办法：

如果我将documentElement代码更改为：

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var documentElement = parentElement.FindFirst(TreeScope.Descendants, documentCond);

我将返回正确的元素。我可以使用它作为一种解决方法，因为文档窗口是我真正想要的，但我想知道为什么Workspace窗格不会出现，这样我就可以提高我的技能，以防将来遇到我无法工作的情况。

更新:我尝试了戈麦斯先生的建议

代码语言：javascript
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PropertyCondition parentFileCond = new PropertyCondition(AutomationElement.ProcessIdProperty, 5872);
PropertyCondition panelCond = new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Pane);

var parentElement = AutomationElement.RootElement.FindFirst(TreeScope.Children, parentFileCond);
var panels = parentElement.FindAll(TreeScope.Children, panelCond);

​

​

我得到了3个结果，不幸的是，我有4个面板，而没有出现的一个面板名为Workspace。

我还尝试使用TreeWalker

代码语言：javascript
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PropertyCondition parentFileCond = new PropertyCondition(AutomationElement.ProcessIdProperty, 5872);
PropertyCondition workspaceCond= new PropertyCondition(AutomationElement.NameProperty, "Workspace");

var walker = new TreeWalker(workspaceCond);
var parentElement = AutomationElement.RootElement.FindFirst(TreeScope.Children, parentFileCond);
var workspaceElement = walker.Normalize(parentElement);

，但对于workspaceElement，它也返回null

最后，在绝望中，我尝试了"NativeWindowHandle“的当前值，并从根节点开始遍历。

代码语言：javascript
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PropertyCondition workspaceCond = new PropertyCondition(AutomationElement.NativeWindowHandleProperty, 0x110906);
var walker = new TreeWalker(workspaceCond);
var workspaceElement = walker.Normalize(AutomationElement.RootElement);

工作区元素仍然为空。

结果发现

我终于让工作区出现了，但我不得不

代码语言：javascript
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PropertyCondition workspaceCond = new PropertyCondition(AutomationElement.NativeWindowHandleProperty, 0x110906);
var test = AutomationElement.RootElement.FindFirst(TreeScope.Subtree, workspaceCond);

而且跑了很长时间。

旧屏幕截图

这是Inspect.exe的截图，显示了树的视图。

​

​

以下是程序主窗口的属性。

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How found:  Selected from tree...
RuntimeId:  "[42.2557552]"
BoundingRectangle:  {l:75 t:1 r:1311 b:1003}
ProcessId:  8160
ControlType:    UIA_WindowControlTypeId (0xC370)
LocalizedControlType:   "window"
Name:   "Redacted"
AccessKey:  ""
HasKeyboardFocus:   false
IsKeyboardFocusable:    true
IsEnabled:  true
ClassName:  "C:\Program Files (x86)\RedactedProgramFiles7\RedactedClientFolder"
HelpText:   ""
IsPassword: false
NativeWindowHandle: 0x270670
IsOffscreen:    false
FrameworkId:    "Win32"
ProviderDescription:    "[pid:4000,hwnd:0x270670 Main:Nested [pid:8160,hwnd:0x270670 Annotation(parent link):Microsoft: Annotation Proxy (unmanaged:uiautomationcore.dll); Main:Microsoft: MSAA Proxy (unmanaged:uiautomationcore.dll)]; Nonclient:Microsoft: Non-Client Proxy (unmanaged:uiautomationcore.dll); Hwnd(parent link):Microsoft: HWND Proxy (unmanaged:uiautomationcore.dll)]"
Window.CanMaximize: true
Window.CanMinimize: true
Window.WindowVisualState:   Normal (0)
Window.WindowInteractionState:  ReadyForUserInteraction (2)
Window.IsModal: false
Window.IsTopmost:   false
Transform.CanMove:  true
Transform.CanResize:    true
Transform.CanRotate:    false
LegacyIAccessible.ChildId:  0
LegacyIAccessible.DefaultAction:    ""
LegacyIAccessible.Description:  ""
LegacyIAccessible.Help: ""
LegacyIAccessible.KeyboardShortcut: ""
LegacyIAccessible.Name: "Redacted"
LegacyIAccessible.Role: client (0xA)
LegacyIAccessible.State:    focusable (0x100000)
LegacyIAccessible.Value:    ""
IsDockPatternAvailable: false
IsExpandCollapsePatternAvailable:   false
IsGridItemPatternAvailable: false
IsGridPatternAvailable: false
IsInvokePatternAvailable:   false
IsLegacyIAccessiblePatternAvailable:    true
IsMultipleViewPatternAvailable: false
IsRangeValuePatternAvailable:   false
IsScrollPatternAvailable:   false
IsScrollItemPatternAvailable:   false
IsSelectionItemPatternAvailable:    false
IsSelectionPatternAvailable:    false
IsTablePatternAvailable:    false
IsTableItemPatternAvailable:    false
IsTextPatternAvailable: false
IsTogglePatternAvailable:   false
IsTransformPatternAvailable:    true
IsValuePatternAvailable:    false
IsWindowPatternAvailable:   true
IsItemContainerPatternAvailable:    false
IsVirtualizedItemPatternAvailable:  false
IsSynchronizedInputPatternAvailable:    false
FirstChild: "Workspace" pane
LastChild:  "Application" menu bar
Next:   "Inspect  (HWND: 0x01700F06)" window
Previous:   "Sandbox Console (Debugging) - Microsoft Visual Studio (Administrator)" window
Other Props:    Object has no additional properties
Children:   "Workspace" pane
    (null) title bar
    "Application" menu bar
Ancestors:  "Desktop" pane
    [ No Parent ]

以下是问题"Workspace“窗格的属性。

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How found:  Selected from tree...
RuntimeId:  "[42.34146524]"
BoundingRectangle:  {l:83 t:51 r:1303 b:995}
ProcessId:  8160
ControlType:    UIA_PaneControlTypeId (0xC371)
LocalizedControlType:   "pane"
Name:   "Workspace"
AccessKey:  ""
HasKeyboardFocus:   false
IsKeyboardFocusable:    true
IsEnabled:  true
ClassName:  "MDIClient"
HelpText:   ""
IsPassword: false
NativeWindowHandle: 0x20908DC
IsOffscreen:    false
FrameworkId:    "Win32"
ProviderDescription:    "[pid:4000,hwnd:0x20908DC Main:Nested [pid:8160,hwnd:0x20908DC Annotation(parent link):Microsoft: Annotation Proxy (unmanaged:uiautomationcore.dll); Main:Microsoft: MSAA Proxy (unmanaged:uiautomationcore.dll)]; Hwnd(parent link):Microsoft: HWND Proxy (unmanaged:uiautomationcore.dll)]"
LegacyIAccessible.ChildId:  0
LegacyIAccessible.DefaultAction:    ""
LegacyIAccessible.Description:  ""
LegacyIAccessible.Help: ""
LegacyIAccessible.KeyboardShortcut: ""
LegacyIAccessible.Name: "Workspace"
LegacyIAccessible.Role: client (0xA)
LegacyIAccessible.State:    focusable (0x100000)
LegacyIAccessible.Value:    ""
IsDockPatternAvailable: false
IsExpandCollapsePatternAvailable:   false
IsGridItemPatternAvailable: false
IsGridPatternAvailable: false
IsInvokePatternAvailable:   false
IsLegacyIAccessiblePatternAvailable:    true
IsMultipleViewPatternAvailable: false
IsRangeValuePatternAvailable:   false
IsScrollPatternAvailable:   false
IsScrollItemPatternAvailable:   false
IsSelectionItemPatternAvailable:    false
IsSelectionPatternAvailable:    false
IsTablePatternAvailable:    false
IsTableItemPatternAvailable:    false
IsTextPatternAvailable: false
IsTogglePatternAvailable:   false
IsTransformPatternAvailable:    false
IsValuePatternAvailable:    false
IsWindowPatternAvailable:   false
IsItemContainerPatternAvailable:    false
IsVirtualizedItemPatternAvailable:  false
IsSynchronizedInputPatternAvailable:    false
FirstChild: "Untitled3" window
LastChild:  "Letters (32638 of 32638):" window
Next:   (null) title bar
Previous:   [null]
Other Props:    Object has no additional properties
Children:   "Untitled3" window
    "Letters (32638 of 32638):" window
Ancestors:  "Redacted" window
    "Desktop" pane
    [ No Parent ]

以下是“工作”文档窗口的属性。

代码语言：javascript
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How found:  Selected from tree...
RuntimeId:  "[42.9505096]"
BoundingRectangle:  {l:85 t:53 r:651 b:491}
ProcessId:  8160
ControlType:    UIA_WindowControlTypeId (0xC370)
LocalizedControlType:   "window"
Name:   "Untitled3"
AccessKey:  ""
HasKeyboardFocus:   false
IsKeyboardFocusable:    true
IsEnabled:  true
AutomationId:   "10"
ClassName:  "ProToolsSubMDIWndClass"
HelpText:   ""
IsPassword: false
NativeWindowHandle: 0x910948
IsOffscreen:    false
FrameworkId:    "Win32"
ProviderDescription:    "[pid:4000,hwnd:0x910948 Main:Nested [pid:8160,hwnd:0x910948 Annotation(parent link):Microsoft: Annotation Proxy (unmanaged:uiautomationcore.dll); Main:Microsoft: MSAA Proxy (unmanaged:uiautomationcore.dll)]; Nonclient:Microsoft: Non-Client Proxy (unmanaged:uiautomationcore.dll); Hwnd(parent link):Microsoft: HWND Proxy (unmanaged:uiautomationcore.dll)]"
Window.CanMaximize: true
Window.CanMinimize: true
Window.WindowVisualState:   Normal (0)
Window.WindowInteractionState:  ReadyForUserInteraction (2)
Window.IsModal: false
Window.IsTopmost:   false
Transform.CanMove:  true
Transform.CanResize:    true
Transform.CanRotate:    false
LegacyIAccessible.ChildId:  0
LegacyIAccessible.DefaultAction:    ""
LegacyIAccessible.Description:  ""
LegacyIAccessible.Help: ""
LegacyIAccessible.KeyboardShortcut: ""
LegacyIAccessible.Name: "Untitled3"
LegacyIAccessible.Role: client (0xA)
LegacyIAccessible.State:    focusable (0x100000)
LegacyIAccessible.Value:    ""
IsDockPatternAvailable: false
IsExpandCollapsePatternAvailable:   false
IsGridItemPatternAvailable: false
IsGridPatternAvailable: false
IsInvokePatternAvailable:   false
IsLegacyIAccessiblePatternAvailable:    true
IsMultipleViewPatternAvailable: false
IsRangeValuePatternAvailable:   false
IsScrollPatternAvailable:   false
IsScrollItemPatternAvailable:   false
IsSelectionItemPatternAvailable:    false
IsSelectionPatternAvailable:    false
IsTablePatternAvailable:    false
IsTableItemPatternAvailable:    false
IsTextPatternAvailable: false
IsTogglePatternAvailable:   false
IsTransformPatternAvailable:    true
IsValuePatternAvailable:    false
IsWindowPatternAvailable:   true
IsItemContainerPatternAvailable:    false
IsVirtualizedItemPatternAvailable:  false
IsSynchronizedInputPatternAvailable:    false
FirstChild: "" thumb
LastChild:  (null) title bar
Next:   "Letters (32638 of 32638):" window
Previous:   [null]
Other Props:    Object has no additional properties
Children:   "" thumb
    (null) title bar
Ancestors:  "Workspace" pane
    "Redacted" window
    "Desktop" pane
    [ No Parent ]
automation
ui-automation
c#
.net
EN

回答 1

Stack Overflow用户

回答已采纳

发布于 2012-04-18 20:47:47

很好的问题。根据您所记录的问题，很明显，您的条件：

代码语言：javascript
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PropertyCondition workspaceCond = new PropertyCondition(
 AutomationElement.NameProperty, "Workspace", PropertyConditionFlags.IgnoreCase);

..。评估失败。为什么？

答案是如何计算条件。查看元素树，我们注意到Workspace的这个属性

代码语言：javascript
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IsWindowPatternAvailable:   false

以及主窗口和Untitled3

代码语言：javascript
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IsWindowPatternAvailable:   true

来自MSDN

UIA_IsWindowPatternAvailablePropertyId 30044 标识IsWindowPatternAvailable属性，该属性指示窗口控制模式是否可用于自动化元素。如果是TRUE，客户端可以从元素中检索IUIAutomationWindowPattern接口。

我们找到一个repro 在这个线程中，这意味着与您当前正在经历的失败模式相同。我们还注意到该元素缺乏Window属性，因为IUIAutomationWindowPattern是不可访问的。

可以从正粘合螺纹获得解决方案。而不是PropertyCondition，您可以使用：

代码语言：javascript
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public class ConditionMatcher : IMatchConditions
{
    public bool Matches(AutomationElement element, Condition condition)
    {
        return new TreeWalker(condition).Normalize(element) != null;
    }
}

或者，另一种方法是使用您已经给出的解决方案，只要您的树结构保证是浅的(因此，适合这个站点的名称，不会触发堆栈溢出)。

诚然，这并不是最明显的问题。在完美的世界中，MSDN应该有关于这个主题的更好的文档。

票数 24
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页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/9282275

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