| UID | title | description | helpviewer_keywords | old-location | tech.root | ms.assetid | ms.date | ms.keywords | req.header | req.include-header | req.target-type | req.target-min-winverclnt | req.target-min-winversvr | req.kmdf-ver | req.umdf-ver | req.ddi-compliance | req.unicode-ansi | req.idl | req.max-support | req.namespace | req.assembly | req.type-library | req.lib | req.dll | req.irql | targetos | req.typenames | req.redist | ms.custom | f1_keywords | dev_langs | topic_type | api_type | api_location | api_name | |||||||||||||||||||
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NF:tapi3if.ITDetectTone.get_Frequency |
ITDetectTone::get_Frequency (tapi3if.h) |
The get_Frequency method retrieves the frequency of the tone for which the TAPI Server generates a tone event. |
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tapi3\itdetecttone_get_frequency.htm |
tapi3 |
a7137eba-c863-4125-9602-14bfba814b2a |
12/05/2018 |
ITDetectTone interface [TAPI 2.2],get_Frequency method, ITDetectTone.get_Frequency, ITDetectTone::get_Frequency, _tapi3_itdetecttone_get_frequency, get_Frequency, get_Frequency method [TAPI 2.2], get_Frequency method [TAPI 2.2],ITDetectTone interface, tapi3.itdetecttone_get_frequency, tapi3if/ITDetectTone::get_Frequency |
tapi3if.h |
Windows |
Uuid.lib |
Tapi3.dll |
Windows |
19H1 |
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The get_Frequency method retrieves the frequency of the tone for which the TAPI Server generates a tone event.
Specifies the index of the tone.
Pointer to a value to receive the frequency, in hertz, of the tone. For more information, see the following Remarks section.
This method can return one of these values.
| Return code | Description |
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Method succeeded. |
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The plFrequency parameter is not a valid pointer. |
You can set up to three frequencies that make up the components of a tone. If fewer than three frequencies are required, specify a value of zero for the unused frequencies. A tone with all three frequencies set to zero is interpreted as silence and can be used for silence detection.