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WASAPI.DeviceIsFormatSupported method

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Remarks

 

Before starting a WASAPI device in exclusive mode through the WASAPI.DeviceStartExclusive method, allows checking if a certain audio format is supported by the given WASAPI device.

 

This method is only intended for usage with Windows Vista and later versions.

For further details about the use of WASAPI see the WASAPI object and the How to manage audio flow through WASAPI tutorial.

 

 

Syntax

 

[Visual Basic]

control.WASAPI.DeviceIsFormatSupported (

nDeviceIndex as Integer,

nDeviceType as enumWasapiDeviceTypes,

nFrequency as Long,

nChannels as Integer

) as Boolean


 

[C++]

BOOL control.WASAPI.DeviceIsFormatSupported (

short nDeviceIndex,

short nDeviceType,

long nFrequency,

short nChannels

);


 

Parameter

Description

 

 

nDeviceIndex

Number representing the zero-based index of the WASAPI device of interest. The total number of available WASAPI devices can be obtained using the WASAPI.DeviceGetCount method.

nDeviceType

The type of device.

Supported values are the following:

Mnemonic Value

Value

Meaning

WASAPI_DEVICE_TYPE_RENDER

0

Audio rendering device.

WASAPI_DEVICE_TYPE_CAPTURE

1

Audio capture device.

WASAPI_DEVICE_TYPE_LOOPBACK

2

Audio loopback device.

nFrequency

Sample rate, for example 44100

nChannels

Number of channels

 

 

 

Return value

 

Value

Meaning

 

 

FALSE

The given format is not supported

TRUE

The given format is supported