Grammar.Enabled Property
Gets or sets a value controlling whether a Grammar can be used by a recognition engine.
Namespace: Microsoft.Speech.Recognition
Assembly: Microsoft.Speech (in microsoft.speech.dll)
Syntax
'Declaration
Property Value
Property is a bool value which is set to true if an instance of Grammar is enabled and ready to process input, and false it the instance is not available for input processing.
Remarks
An instance of Grammar may be enabled or disabled independently of being loaded by a recognition engine (SpeechRecognizer or SpeechRecognitionEngine);
Example
The example below show a check box handler for a Windows.Forms.TreeView. When the box is checked, the grammar is enabled.
private void _grammarTreeView_AfterCheck(object sender, TreeViewEventArgs eventArgs) {
if (eventArgs.Action != TreeViewAction.Unknown) { // Avoid recurse due to hanlders
if (eventArgs.Node.Parent == null) {
Grammar grammar=((Grammar)eventArgs.Node.Tag);
grammar.Enabled = eventArgs.Node.Checked;
PropagateCheckStatus(eventArgs.Node);
} else {
PropagateCheckStatus(eventArgs.Node.Parent);
}
}
}
Thread Safety
All public static (Shared in Visual Basic) members of this type are thread-safe. Instance members are not guaranteed to be thread-safe.
Platforms
Development Platforms
Windows XP Professional with Service Pack 2 (SP2), Windows Server 2003, Windows Vista Ultimate Edition, Windows Vista Business Edition, Windows Vista Enterprise Edition
Target Platforms
See Also
Reference
Grammar Class
Grammar Members
Microsoft.Speech.Recognition Namespace
Grammar Class
SpeechRecognizer
SpeechRecognitionEngine