TextPattern.HorizontalTextAlignmentAttribute Campo

Definição

Identifica o atributo HorizontalTextAlignment de um intervalo de texto.Identifies the HorizontalTextAlignment attribute of a text range.

public: static initonly System::Windows::Automation::AutomationTextAttribute ^ HorizontalTextAlignmentAttribute;
public static readonly System.Windows.Automation.AutomationTextAttribute HorizontalTextAlignmentAttribute;
 staticval mutable HorizontalTextAlignmentAttribute : System.Windows.Automation.AutomationTextAttribute
Public Shared ReadOnly HorizontalTextAlignmentAttribute As AutomationTextAttribute 

Valor do campo

Exemplos

O exemplo a seguir mostra como obter um valor de atributo para um intervalo de texto no bloco de notas da Microsoft.The following example shows how to obtain an attribute value for a range of text in Microsoft Notepad.

Observação

O bloco de notas da Microsoft é usado como o provedor de texto apenas para fins de exemplo.Microsoft Notepad is used as the text provider for example purposes only. O bloco de notas da Microsoft não é garantido para dar suporte ao valor de atributo que está sendo solicitado.Microsoft Notepad is not guaranteed to support the attribute value being requested.

private void GetHorizontalTextAlignmentAttribute()
{
    // Start application.
    Process p = Process.Start("Notepad.exe", "text.txt");

    // target --> The root AutomationElement.
    AutomationElement target = AutomationElement.FromHandle(p.MainWindowHandle);

    // Specify the control type we're looking for, in this case 'Document'
    PropertyCondition cond = new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Document);

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

    TextPattern textpatternPattern = textProvider.GetCurrentPattern(TextPattern.Pattern) as TextPattern;

    if (textpatternPattern == null)
    {
        Console.WriteLine("Root element does not contain a descendant that supports TextPattern.");
        return;
    }

    Object oAttribute = textpatternPattern.DocumentRange.GetAttributeValue(TextPattern.HorizontalTextAlignmentAttribute);
    if (oAttribute == TextPattern.MixedAttributeValue)
    {
        Console.WriteLine("Mixed horizontal alignments.");
    }
    else
    {
        Console.WriteLine(oAttribute.ToString());
    }
}
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

Comentários

Esse atributo representa o alinhamento de texto horizontal aplicado aos parágrafos associados ao intervalo de texto de chamada.This attribute represents the horizontal text alignment applied to the paragraph(s) associated with the calling text range.

Esse identificador é usado por aplicativos cliente de automação da interface do usuário.This identifier is used by UI Automation client applications. Os provedores de automação da interface do usuário devem TextPatternIdentifiersusar o campo equivalente no.UI Automation providers should use the equivalent field in TextPatternIdentifiers.

Os clientes de automação da interface do usuário obtêm o GetAttributeValuevalor do atributo chamando.UI Automation clients get the value of the attribute by calling GetAttributeValue.

Os valores para esse atributo são do HorizontalTextAlignmenttipo.Values for this attribute are of type HorizontalTextAlignment. O valor padrão é LeftThe default value is Left

Aplica-se a

Veja também