/**
* <summary>
* Returns the frequency of the signal sent to the buzzer/speaker.
* <para>
* </para>
* <para>
* </para>
* </summary>
* <returns>
* a floating point number corresponding to the frequency of the signal sent to the buzzer/speaker
* </returns>
* <para>
* On failure, throws an exception or returns <c>YBuzzer.FREQUENCY_INVALID</c>.
* </para>
*/
public double get_frequency()
{
double res;
if (_func == null)
{
throw new YoctoApiProxyException("No Buzzer connected");
}
res = _func.get_frequency();
if (res == YAPI.INVALID_DOUBLE)
{
res = Double.NaN;
}
return(res);
}