我们正在尝试自动单击 Lync 界面中的以下按钮。问题是我们不能可靠地点击它。有时有效；其他时候它没有。我们要完成的是打开 Lync 选项窗口。

以下是问题的一些部分:

• 我们正在使用 System.Windows.Automation 命名空间进行 UI 自动化。
• 通常我们调用AutomationElement.FindFirst来获取UI元素
• 这对按钮不起作用，因为按钮的菜单没有任何祖先
• 因此，我们使用 TreeWalker 遍历 AutomomationElement.RootElement 的所有后代
• 使用 TreeWalker，我们有时会找到匹配项，但奇怪且出乎意料的是，我们有时找不到匹配项
• 使用 Inspect.exe 我们可以看到按钮的“上下文”菜单没有任何祖先

我们如何可靠地找到并点击按钮？

来自 Inspect.exe

How found:  Selected from tree...
Name:   ""
ControlType:    UIA_MenuItemControlTypeId (0xC35B)
LocalizedControlType:   "menu item"
ProcessId:  0
IsControlElement:   true
IsContentElement:   true
ProviderDescription:    "[pid:3084,hwnd:0x0 Annotation:Microsoft: Annotation Proxy (unmanaged:UIAutomationCore.dll); Main(parent link):Microsoft: MSAA Proxy (unmanaged:UIAutomationCore.dll)]"
IsPeripheral:   [Not supported]
LiveSettingProperty:    [Not supported]
FlowsFrom:  [Not supported]
OptimizeForVisualContent:   [Not supported]
Annotation.AnnotationAuthor:    [Not supported]
Annotation.AnnotationTypeId:    [Not supported]
Annotation.Author:  [Not supported]
Annotation.DateTime:    [Not supported]
Annotation.Target:  [Not supported]
Drag.DropEffect:    [Not supported]
Drag.DropEffects:   [Not supported]
Drag.GrabbedItems:  [Not supported]
Drag.IsGrabbed: [Not supported]
DropTarget.DropTargetEffect:    [Not supported]
DropTarget.DropTargetEffects:   [Not supported]
LegacyIAccessible.ChildId:  3
LegacyIAccessible.Name: ""
ObjectModel.UnderlyingObjectModel:  [Error: calling getter for this property: hr=0x80070057 - The parameter is incorrect.]
SpreadsheetItem.AnnotationObjects:  [Not supported]
SpreadsheetItem.AnnotationTypes:    [Not supported]
SpreadsheetItem.Formula:    [Not supported]
Style.ExtendedProperties:   [Not supported]
Style.FillColor:    [Not supported]
Style.FillPatternColor: [Not supported]
Style.FillPatternStyle: [Not supported]
Style.Shape:    [Not supported]
Style.StyleId:  [Not supported]
Style.StyleName:    [Not supported]
Transform2.CanZoom: [Not supported]
Transform2.ZoomLevel:   [Not supported]
Transform2.ZoomMinimum: [Not supported]
Transform2.ZoomMaximum: [Not supported]
IsAnnotationPatternAvailable:   [Not supported]
IsDragPatternAvailable: [Not supported]
IsDockPatternAvailable: false
IsDropTargetPatternAvailable:   [Not supported]
IsExpandCollapsePatternAvailable:   false
IsGridItemPatternAvailable: false
IsGridPatternAvailable: false
IsInvokePatternAvailable:   false
IsItemContainerPatternAvailable:    false
IsLegacyIAccessiblePatternAvailable:    true
IsMultipleViewPatternAvailable: false
IsObjectModelPatternAvailable:  [Not supported]
IsRangeValuePatternAvailable:   false
IsScrollItemPatternAvailable:   false
IsScrollPatternAvailable:   false
IsSelectionItemPatternAvailable:    false
IsSelectionPatternAvailable:    false
IsSpreadsheetItemPatternAvailable:  [Not supported]
IsSpreadsheetPatternAvailable:  [Not supported]
IsStylesPatternAvailable:   [Not supported]
IsSynchronizedInputPatternAvailable:    false
IsTableItemPatternAvailable:    false
IsTablePatternAvailable:    false
IsTextChildPatternAvailable:    [Not supported]
IsTextEditPatternAvailable: [Not supported]
IsTextPatternAvailable: false
IsTextPattern2Available:    [Not supported]
IsTogglePatternAvailable:   false
IsTransformPatternAvailable:    false
IsTransform2PatternAvailable:   [Not supported]
IsValuePatternAvailable:    false
IsVirtualizedItemPatternAvailable:  false
IsWindowPatternAvailable:   false
FirstChild: [null]
LastChild:  [null]
Next:   [null]
Previous:   [null]
Other Props:    Object has no additional properties
Children:   [Error: calling getter for this property: hr=0x80004005 - Unspecified error]
Ancestors:  "Context" menu
    "Context" window
    [ No Parent ]

最佳答案

如何通过 UIA 打开下拉菜单，然后使用 SendKeys 发送 Alt-D ("%d")？

关于c# - 使用 Windows 自动化查找和调用没有祖先的按钮，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/22357284/