TextPatternRange.GetBoundingRectangles 方法

定義

命名空間:

System.Windows.Automation.Text

組件:

UIAutomationClient.dll

對文字範圍中每一個完整或部分可見的文字行，擷取週框的集合。

public:
 cli::array <System::Windows::Rect> ^ GetBoundingRectangles();

public System.Windows.Rect[] GetBoundingRectangles ();

member this.GetBoundingRectangles : unit -> System.Windows.Rect[]

Public Function GetBoundingRectangles () As Rect()

傳回

Rect[]

由文字範圍中每一個完整或部分可見的文字行所構成的週框陣列。

變質文字範圍的空陣列。

具有螢幕座標之文字範圍的空陣列，這些座標讓文字範圍完全放在螢幕之外、捲動到檢視之外，或被重疊的視窗遮蔽。

範例

 private Rect[] BoundingRectanglesFromSelection(AutomationElement target)
{
    // Specify the control type we're looking for, in this case 'Document'
    PropertyCondition cond = new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Document);

    // target --> The root AutomationElement.
    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 null;
    }
    TextPatternRange[] currentSelection = textpatternPattern.GetSelection();

    return currentSelection[0].GetBoundingRectangles();
}

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

    ' target --> The root AutomationElement.
    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 Nothing
    End If
    Dim currentSelection As TextPatternRange() = textpatternPattern.GetSelection()
    Return currentSelection(0).GetBoundingRectangles()
End Function