BASS_WASAPI_GetDeviceLevel
Retrieves the level (peak amplitude) of a device.
float BASS_WASAPI_GetDeviceLevel(
DWORD device,
int chan
);
Parameters
| device | The device to get the level from.
|
| chan | The channel to get the level of... 0 = first channel, -1 = all channels.
|
Return value
If successful, the level is returned, else -1 is returned. Use BASS_ErrorGetCode to get the error code.
Error codes
| BASS_ERROR_WASAPI | WASAPI is not available.
|
| BASS_ERROR_DEVICE | device is not valid.
|
| BASS_ERROR_DRIVER | The device driver does not support level retrieval.
|
| BASS_ERROR_ILLPARAM | chan is not valid.
|
| BASS_ERROR_UNKNOWN | Some other mystery problem!
|
Remarks
This function gets the level from the device/driver, or WASAPI if the device does not have its own level meter. In the latter case, the level will be unavailable when exclusive mode is active.
See also
BASS_WASAPI_GetDeviceInfo, BASS_WASAPI_GetLevel