TextPattern.HorizontalTextAlignmentAttribute Field

Identifies the HorizontalTextAlignment attribute of a text range.

Namespace: System.Windows.Automation
Assembly: UIAutomationClient (in uiautomationclient.dll)

'Declaration
Public Shared ReadOnly HorizontalTextAlignmentAttribute As AutomationTextAttribute
'Usage
Dim value As AutomationTextAttribute

value = TextPattern.HorizontalTextAlignmentAttribute

public static final AutomationTextAttribute HorizontalTextAlignmentAttribute
public static final var HorizontalTextAlignmentAttribute : AutomationTextAttribute
Not applicable.

This attribute represents the horizontal text alignment applied to the paragraph(s) associated with the calling text range.

This identifier is used by UI Automation client applications. UI Automation providers should use the equivalent field in TextPatternIdentifiers.

UI Automation clients get the value of the attribute by calling GetAttributeValue.

Values for this attribute are of type

HorizontalTextAlignment. The default value is Left

The following example shows how to obtain an attribute value for a range of text in Microsoft Notepad.

NoteNote:

Microsoft Notepad is used as the text provider for example purposes only. Microsoft Notepad is not guaranteed to support the attribute value being requested.

Private Sub GetHorizontalTextAlignmentAttribute()
    ' Start application.
    Dim p As Process = Process.Start("Notepad.exe", "text.txt")

    ' target --> The root AutomationElement.
    Dim target As AutomationElement = AutomationElement.FromHandle(p.MainWindowHandle)

    ' Specify the control type we're looking for, in this case 'Document'
    Dim cond As PropertyCondition = New PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Document)

    Dim textProvider As AutomationElement = target.FindFirst(TreeScope.Descendants, cond)

    Dim textpatternPattern As TextPattern = CType(textProvider.GetCurrentPattern(TextPattern.Pattern), TextPattern)

    If (textpatternPattern Is Nothing) Then
        Console.WriteLine("Root element does not contain a descendant that supports TextPattern.")
        Return
    End If

    Dim oAttribute As Object = textpatternPattern.DocumentRange.GetAttributeValue(TextPattern.HorizontalTextAlignmentAttribute)
    If (oAttribute = TextPattern.MixedAttributeValue) Then
        Console.WriteLine("Mixed horizontal alignments.")
    Else
        Console.WriteLine(oAttribute.ToString())
    End If
End Sub

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0
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