.gif "참고") 참고 |
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이 문서는 System.Windows.Automation 네임스페이스에 정의된 관리되는 UI Automation 클래스를 사용하려는 .NET Framework 개발자를 위해 작성되었습니다.UI Automation에 대한 최신 정보는 Windows Automation API: UI Automation을 참조하십시오. |
이 항목에서는 Microsoft UI Automation를 사용하여 텍스트 범위에서 텍스트 특성을 가져오는 방법을 보여 줍니다. 텍스트 범위는 문서 전체 텍스트 내용, 연결되지 않은 텍스트 선택 영역 모음, 연속적인 텍스트 선택 영역 또는 문서 내 캐럿이나 디제너레이트 선택 영역의 현재 위치에 해당될 수 있습니다.
예제
다음 코드 예제에서는 텍스트 범위에서 FontNameAttribute를 가져오는 방법을 보여 줍니다.
''' -------------------------------------------------------------------
''' <summary>
''' Starts the target application and returns the AutomationElement
''' obtained from the targets window handle.
''' </summary>
''' <param name="exe">
''' The target application.
''' </param>
''' <param name="filename">
''' The text file to be opened in the target application
''' </param>
''' <returns>
''' An AutomationElement representing the target application.
''' </returns>
''' -------------------------------------------------------------------
Private Function StartTarget( _
ByVal exe As String, ByVal filename As String) As AutomationElement
' Start text editor and load with a text file.
Dim p As Process = Process.Start(exe, filename)
' targetApp --> the root AutomationElement.
Dim targetApp As AutomationElement
targetApp = AutomationElement.FromHandle(p.MainWindowHandle)
Return targetApp
End Function
...
''' -------------------------------------------------------------------
''' <summary>
''' Obtain the text control of interest from the target application.
''' </summary>
''' <param name="targetApp">
''' The target application.
''' </param>
''' <returns>
''' An AutomationElement. representing a text control.
''' </returns>
''' -------------------------------------------------------------------
Private Function GetTextElement(ByVal targetApp As AutomationElement) As AutomationElement
' The control type we're looking for; in this case 'Document'
Dim cond1 As PropertyCondition = _
New PropertyCondition( _
AutomationElement.ControlTypeProperty, _
ControlType.Document)
' The control pattern of interest; in this case 'TextPattern'.
Dim cond2 As PropertyCondition = _
New PropertyCondition( _
AutomationElement.IsTextPatternAvailableProperty, _
True)
Dim textCondition As AndCondition = New AndCondition(cond1, cond2)
Dim targetTextElement As AutomationElement = _
targetApp.FindFirst(TreeScope.Descendants, textCondition)
' If targetText is null then a suitable text control was not found.
Return targetTextElement
End Function
...
''' -------------------------------------------------------------------
''' <summary>
''' Outputs the FontNameAttribute value for a range of text.
''' </summary>
''' <param name="targetTextElement">
''' The AutomationElement. that represents the text provider.
''' </param>
''' -------------------------------------------------------------------
Private Sub GetFontNameAttribute( _
ByVal targetTextElement As AutomationElement)
Dim targetTextPattern As TextPattern = _
DirectCast(targetTextElement.GetCurrentPattern( _
TextPattern.Pattern), TextPattern)
If (targetTextPattern Is Nothing) Then
' Target control doesn't support TextPattern.
Return
End If
' If the target control doesn't support selection then return.
' Otherwise, get the text attribute for the selected text.
' If there are currently no selections then the text attribute
' will be obtained from the insertion point.
Dim textRanges() As TextPatternRange
If (targetTextPattern.SupportedTextSelection = SupportedTextSelection.None) Then
Return
Else
textRanges = targetTextPattern.GetSelection()
End If
Dim textRange As TextPatternRange
For Each textRange In textRanges
Dim textAttribute As Object = _
textRange.GetAttributeValue( _
TextPattern.FontNameAttribute)
If (textAttribute = TextPattern.MixedAttributeValue) Then
' Returns MixedAttributeValue if the value of the
' specified attribute varies over the text range.
Console.WriteLine("Mixed fonts.")
ElseIf (textAttribute = AutomationElement.NotSupported) Then
' Returns NotSupported if the specified attribute is
' not supported by the provider or the control.
Console.WriteLine( _
"FontNameAttribute not supported by provider.")
Else
Console.WriteLine(textAttribute.ToString())
End If
Next
End Sub
/// -------------------------------------------------------------------
/// <summary>
/// Starts the target application and returns the AutomationElement
/// obtained from the targets window handle.
/// </summary>
/// <param name="exe">
/// The target application.
/// </param>
/// <param name="filename">
/// The text file to be opened in the target application
/// </param>
/// <returns>
/// An AutomationElement representing the target application.
/// </returns>
/// -------------------------------------------------------------------
private AutomationElement StartTarget(string exe, string filename)
{
// Start text editor and load with a text file.
Process p = Process.Start(exe, filename);
// targetApp --> the root AutomationElement.
AutomationElement targetApp =
AutomationElement.FromHandle(p.MainWindowHandle);
return targetApp;
}
...
/// -------------------------------------------------------------------
/// <summary>
/// Obtain the text control of interest from the target application.
/// </summary>
/// <param name="targetApp">
/// The target application.
/// </param>
/// <returns>
/// An AutomationElement that represents a text provider..
/// </returns>
/// -------------------------------------------------------------------
private AutomationElement GetTextElement(AutomationElement targetApp)
{
// The control type we're looking for; in this case 'Document'
PropertyCondition cond1 =
new PropertyCondition(
AutomationElement.ControlTypeProperty,
ControlType.Document);
// The control pattern of interest; in this case 'TextPattern'.
PropertyCondition cond2 =
new PropertyCondition(
AutomationElement.IsTextPatternAvailableProperty,
true);
AndCondition textCondition = new AndCondition(cond1, cond2);
AutomationElement targetTextElement =
targetApp.FindFirst(TreeScope.Descendants, textCondition);
// If targetText is null then a suitable text control was not found.
return targetTextElement;
}
...
/// -------------------------------------------------------------------
/// <summary>
/// Outputs the FontNameAttribute value for a range of text.
/// </summary>
/// <param name="targetTextElement">
/// The AutomationElment that represents a text control.
/// </param>
/// -------------------------------------------------------------------
private void GetFontNameAttribute(AutomationElement targetTextElement)
{
TextPattern textPattern =
targetTextElement.GetCurrentPattern(TextPattern.Pattern) as TextPattern;
if (textPattern == null)
{
// Target control doesn't support TextPattern.
return;
}
// If the target control doesn't support selection then return.
// Otherwise, get the text attribute for the selected text.
// If there are currently no selections then the text attribute
// will be obtained from the insertion point.
TextPatternRange[] textRanges;
if (textPattern.SupportedTextSelection == SupportedTextSelection.None)
{
return;
}
else
{
textRanges = textPattern.GetSelection();
}
foreach (TextPatternRange textRange in textRanges)
{
Object textAttribute =
textRange.GetAttributeValue(
TextPattern.FontNameAttribute);
if (textAttribute == TextPattern.MixedAttributeValue)
{
// Returns MixedAttributeValue if the value of the
// specified attribute varies over the text range.
Console.WriteLine("Mixed fonts.");
}
else if (textAttribute == AutomationElement.NotSupported)
{
// Returns NotSupported if the specified attribute is
// not supported by the provider or the control.
Console.WriteLine(
"FontNameAttribute not supported by provider.");
}
else
{
Console.WriteLine(textAttribute.ToString());
}
}
}
TextPatternRange 클래스와 함께 사용할 경우 TextPattern 컨트롤 패턴은 기본 텍스트 특성, 속성 및 메서드를 지원합니다. TextPattern 또는 TextPatternRange에서 지원하지 않는 컨트롤별 기능의 경우 UI 자동화 클라이언트가 해당 기본 개체 모델에 액세스하는 데 필요한 메서드를 AutomationElement 클래스에서 제공합니다.
참고 항목
작업
UI 자동화를 사용하여 혼합 텍스트 특성 정보 가져오기