SpeechRecognitionEngine::EmulateRecognizeAsync Method (String^, CompareOptions)

.NET Framework (current version)

Emulates input of a phrase to the speech recognizer, using text in place of audio for asynchronous speech recognition, and specifies how the recognizer handles Unicode comparison between the phrase and the loaded speech recognition grammars.

Namespace: System.Speech.Recognition
Assembly: System.Speech (in System.Speech.dll)

Syntax

C++

public:
void EmulateRecognizeAsync(
	String^ inputText,
	CompareOptions compareOptions
)

Parameters

inputText: Type: System::String^
The input phrase for the recognition operation.

compareOptions: Type: System.Globalization::CompareOptions
A bitwise combination of the enumeration values that describe the type of comparison to use for the emulated recognition operation.

Exceptions

Exception	Condition
InvalidOperationException	The recognizer has no speech recognition grammars loaded, or the recognizer has an asynchronous recognition operation that is not yet complete.
ArgumentNullException	inputText is null.
ArgumentException	inputText is the empty string ("").
NotSupportedException	compareOptions contains the IgnoreNonSpace, IgnoreSymbols, or StringSort flag.

Remarks

The speech recognizer raises the SpeechDetected, SpeechHypothesized, SpeechRecognitionRejected, and SpeechRecognized events as if the recognition operation is not emulated. When the recognizer completes the asynchronous recognition operation, it raises the EmulateRecognizeCompleted event.

The recognizer uses compareOptions when it applies grammar rules to the input phrase. The recognizers that ship with Vista and Windows 7 ignore case if the OrdinalIgnoreCase or IgnoreCase value is present. The recognizers always ignore the character width and never ignore the Kana type. The recognizers also ignore new lines and extra white space and treat punctuation as literal input. For more information about character width and Kana type, see the CompareOptions enumeration.

Version Information

.NET Framework
Available since 3.0