/// <summary>
/// Retrieve the peak value for the file as stored in the file header.
/// </summary>
/// <param name="sndfile">Audio file we want to examine.</param>
/// <returns>Peak value from file header.</returns>
public double GetSignalMax(IntPtr sndfile)
{
if (sndfile == IntPtr.Zero)
{
throw new ArgumentException("File handle is invalid/closed.");
}
return(m_Api.GetSignalMax(sndfile));
}