/// <summary>
/// Reads and parses the header of a ply file returned by <see cref="Open"/>.
/// </summary>
/// <param name="ply">Handle returned by <see cref="Open"/>.</param>
/// <returns>true if successful, false otherwise</returns>
public static bool ReadHeader(IPly ply)
{
throw new NotImplementedException();
}
/// <summary>
/// Sets up callbacks for property reading after header was parsed
/// </summary>
/// <param name="ply">Handle returned by <see cref="Open"/>.</param>
/// <param name="elementName">element where property is</param>
/// <param name="propertyName">property to associate element with</param>
/// <param name="readCallback">function to be called for each property value</param>
/// <param name="userData">user data that will be passed to callback</param>
/// <returns>0 if no element or no property in element, returns the number of element instances otherwise. </returns>
public static int SetReadCallback(IPly ply, string elementName, string propertyName, ReadCallback readCallback, object userData)
{
throw new NotImplementedException();
}
