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WASAPI.DeviceIsStarted method

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Remarks

 

Checks if the given WASAPI device has neen previously started through the WASAPI.DeviceStartExcusive or WASAPI.DeviceStartShared methods.

 

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

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

 

 

Syntax

 

[Visual Basic]

Public Function DeviceIsStarted (

nDeviceIndex as Int32,

nDeviceType as enumWasapiDeviceTypes

) as Boolean


 

[C#]

public bool DeviceIsStarted (

Int32 nDeviceIndex,

enumWasapiDeviceTypes nDeviceType

);


 

[C++]

public: bool DeviceIsStarted (

Int32 nDeviceIndex,

enumWasapiDeviceTypes nDeviceType

);


 

 

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.

 

 

Return value

 

Value

Meaning

 

 

false

The given WASAPI device is not started

true

The given WASAPI device is started