TextSource.GetPrecedingText(Int32) Method
Definition
Important
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Retrieves the text span immediately before the specified TextSource position.
public:
abstract System::Windows::Media::TextFormatting::TextSpan<System::Windows::Media::TextFormatting::CultureSpecificCharacterBufferRange ^> ^ GetPrecedingText(int textSourceCharacterIndexLimit);
public abstract System.Windows.Media.TextFormatting.TextSpan<System.Windows.Media.TextFormatting.CultureSpecificCharacterBufferRange> GetPrecedingText (int textSourceCharacterIndexLimit);
abstract member GetPrecedingText : int -> System.Windows.Media.TextFormatting.TextSpan<System.Windows.Media.TextFormatting.CultureSpecificCharacterBufferRange>
Public MustOverride Function GetPrecedingText (textSourceCharacterIndexLimit As Integer) As TextSpan(Of CultureSpecificCharacterBufferRange)
Parameters
- textSourceCharacterIndexLimit
- Int32
The character index position where text retrieval stops.
Returns
A CultureSpecificCharacterBufferRange value that represents the text span immediately before textSourceCharacterIndexLimit
.
Remarks
The GetPrecedingText method returns an empty CultureSpecificCharacterBufferRange if the text span immediately before textSourceCharacterIndexLimit
does not contain any text, such as inline object or a hidden run.
This method returns a zero-length text span if there are no values preceding textSourceCharacterIndexLimit
.
Applies to
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