The DTMF_DECODER_CALLBACK_PROC data type is used by the telephony API to define a callback procedure that is used by the Media Engine's DTMF decoder functionality. This callback procedure is specified when application software calls the CreateDtmfDecoder(VoipMediaEngine, Boolean, Int32, Int32, Int32, Boolean, VoipMediaEngine..::.DTMF_DECODER_CALLBACK_PROC, Object) API procedure. This callback procedure is responsible for passing DTMF digit decode information back to the user's application.

Namespace:  LanScape
Assembly:  LMEVoipManaged (in LMEVoipManaged.dll) Version: 6.0.5226.26700

Syntax

C#
public delegate void DTMF_DECODER_CALLBACK_PROC(
	VoipMediaEngine..::.DTMF_DETECT_DATA DtmfDetectData
)
Visual Basic (Declaration)
Public Delegate Sub DTMF_DECODER_CALLBACK_PROC ( _
	DtmfDetectData As VoipMediaEngine..::.DTMF_DETECT_DATA _
)
Visual C++
public delegate void DTMF_DECODER_CALLBACK_PROC(
	VoipMediaEngine..::.DTMF_DETECT_DATA^ DtmfDetectData
)
J#
/** @delegate */
public delegate void DTMF_DECODER_CALLBACK_PROC(
	VoipMediaEngine..::.DTMF_DETECT_DATA DtmfDetectData
)

Parameters

DtmfDetectData
Type: LanScape..::.VoipMediaEngine..::.DTMF_DETECT_DATA
A reference to a DTMF_DETECT_DATA object. The elements of this object allows application software to determine if a DTMF "ON" or "OFF" transition has occurred.

See Also