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RecognitionResult.GetAlternatesFromSelection Method

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RecognitionResult.GetAlternatesFromSelection Method

Returns the RecognitionAlternates collection from a selection within the best result string of the RecognitionResult object, so that each RecognitionAlternate object in the collection corresponds to only one segment of ink.

Definition

Visual Basic .NET Public Function GetAlternatesFromSelection( _
ByVal selectionStart As Integer, _
ByVal selectionLength As Integer _
) As RecognitionAlternates
C# public RecognitionAlternates GetAlternatesFromSelection(
int selectionStart,
int selectionLength
);
Managed C++ public: RecognitionAlternates* GetAlternatesFromSelection(
int *selectionStart,
int *selectionLength
);

Parameters

selectionStart System.Int32. The start of the text selection from which the RecognitionAlternates collection is returned. The default value is 0 (zero).
selectionLength System.Int32. The length of the text selection from which the RecognitionAlternates collection is returned. The default value is –1, which specifies the text beginning from the start of the selection to the end of the string.

Return Value

Microsoft.Ink.RecognitionAlternates. Returns the RecognitionAlternates collection from a selection within the best result string of the RecognitionResult object, so that each RecognitionAlternate object in the collection corresponds to only one segment of ink.

Remarks

Note: The number of alternates increases exponentially for large ranges and for some languages. Applications should specify the number of alternates rather than query for the maximum number of alternates that the recognizer can return by using the GetAlternatesFromSelection(Int32,Int32,Int32) overload.

A recognizer is likely to divide "how are you" into three segments—depending on the spacing between segments—one for each word. Call the GetAlternatesFromSelection method to return the alternates for only one segment of this selection.

Note: The selectionStart and selectionLength parameters correspond to character indices, not segment indices. To get the alternates from the word "are" in "how are you", for example, call the GetAlternatesFromSelection method with the selectionStart parameter set to 4 and the selectionLength parameter set to 3, because the word "are" starts at the fourth character (zero-based) and is three characters long.

Note the difference between the GetAlternatesFromSelection method and the AlternatesWithConstantPropertyValues, LineAlternates, and ConfidenceAlternates methods of the RecognitionAlternate object. Although the GetAlternatesFromSelection method returns a RecognitionAlternates collection in which each RecognitionAlternate object corresponds to only one segment of ink within a selection, the AlternatesWithConstantPropertyValues, LineAlternates, and ConfidenceAlternates methods return the RecognitionAlternates collection in which the RecognitionAlternate objects correspond to each segment of ink within a selection.

Note: If the selectionLength parameter is set to zero, this method throws an invalid argument exception.

Examples

See Also