ComponentOne WinForms Edition
C1.Win.C1DX.4.8 Assembly / C1.Util.DX.DirectWrite Namespace / TextAnalysisSource Interface / GetTextAtPosition Method
The first position of the piece to obtain. All positions are in UTF16 code units, not whole characters, which matters when supplementary characters are used.

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GetTextAtPosition Method (TextAnalysisSource)
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Gets a block of text starting at the specified text position.
Syntax
'Declaration
 
Function GetTextAtPosition( _
   ByVal textPosition As System.Integer _
) As System.String
 

Parameters

textPosition
The first position of the piece to obtain. All positions are in UTF16 code units, not whole characters, which matters when supplementary characters are used.

Return Value

a block of text
Remarks
Returning NULL indicates the end of text, which is the position after the last character. This function is called iteratively for each consecutive block, tying together several fragmented blocks in the backing store into a virtual contiguous string. Although applications can implement sparse textual content that maps only part of the backing store, the application must map any text that is in the range passed to any analysis functions.
See Also

Reference

TextAnalysisSource Interface
TextAnalysisSource Members