/**
* <summary>
* Changes the frequency of the signal sent to the buzzer.
* <para>
* A zero value stops the buzzer.
* </para>
* <para>
* </para>
* </summary>
* <param name="newval">
* a floating point number corresponding to the frequency of the signal sent to the buzzer
* </param>
* <para>
* </para>
* <returns>
* <c>0</c> if the call succeeds.
* </returns>
* <para>
* On failure, throws an exception or returns a negative error code.
* </para>
*/
public int set_frequency(double newval)
{
if (_func == null)
{
throw new YoctoApiProxyException("No Buzzer connected");
}
if (newval == _Frequency_INVALID)
{
return(YAPI.SUCCESS);
}
return(_func.set_frequency(newval));
}