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Microsoft Speech SDK

Interface: ISpeechRecoGrammar

DictationUnload Method

The DictationUnload method unloads the active dictation topic from the grammar.

ISpeechRecoGrammar.DictationUnload()

Parameters

None.

Return Value

None.

Example

The following Visual Basic form code demonstrates the use of the DictationLoad, DictationSetState, and DictationUnload methods. It creates a grammar, configures the grammar to perform both dictation and command and control (C and C) recognition, and toggles between the two types of recognition.

To run this code, create a form with the following control:

Paste this code into the Declarations section of the form.

The Form_Load procedure creates a grammar object, associates it with the system dictation lexicon and the Solitaire C and C grammar, and begins recognition in dictation mode. The Command1_Click procedure toggles the recognition mode between dictation and C and C. The Form_Unload procedure unloads the dictation grammar and deactivates the C and C grammar.

Option Explicit

Dim C As SpeechLib.SpSharedRecoContext
Dim G As SpeechLib.ISpeechRecoGrammar

Private Sub Command1_Click()

    If Command1.Caption = "&Dictation" Then
        G.CmdSetRuleIdState 0, SGDSInactive     'C&C off
        G.DictationSetState SGDSActive          'Dictation on
        Command1.Caption = "&C and C"
    Else
        G.DictationSetState SGDSInactive        'Dictation off
        G.CmdSetRuleIdState 0, SGDSInactive     'C&C on
        Command1.Caption = "&Dictation"
    End If

End Sub

Private Sub Form_Load()

    'Create a RecoContext and its Grammar
    Set C = New SpSharedRecoContext
    Set G = C.CreateGrammar
    
    'Get dictation grammar and set it inactive
    G.DictationLoad "", SLOStatic
    G.DictationSetState SGDSInactive
    
    'Get Command & Control grammar, and set it inactive
    G.CmdLoadFromFile "C:\SOL.XML", SLOStatic
    G.CmdSetRuleIdState 0, SGDSInactive
    
    'Set dictation active and set up Command1.Caption
    G.DictationSetState SGDSActive
    Command1.Caption = "&C and C"

End Sub

Private Sub Form_Unload(Cancel As Integer)
    G.DictationUnload
    G.CmdSetRuleIdState 0, SGDSInactive
End Sub