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WASAPI.RenderDeviceLatencyGet method

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Obtains the latency, expressed in milliseconds, of the given WASAPI device. In order to correctly check the latency, the WASAPI device must have been previously started through one between the WASAPI.RenderDeviceStartExcusive and WASAPI.RenderDeviceStartShared methods.


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

For further details about WASAPI see the WASAPIMan class and the How to manage audio playback through WASAPI tutorial.





[Visual Basic]

Public Function RenderDeviceLatencyGet (

nDeviceIndex as Int32,

ByRef nLatencyMs as Int32

) as enumErrorCodes



public enumErrorCodes RenderDeviceLatencyGet (

Int32 nDeviceIndex,

ref Int32 nLatencyMs




public: enumErrorCodes RenderDeviceLatencyGet (

Int32 nDeviceIndex,

Int32 __gc  *nLatencyMs









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.RenderDeviceGetCount method.


Reference that, on return from the method call, will contain the latency, expressed in milliseconds, of the given WASAPI device.



Return value






Negative value

An error occurred (see the LastError property for further error details)

enumErrorCodes.NOERROR (0)

The method call was successful.