public static extern int BAL_SetOnLePeso(IntPtr balHandle, LePesoCallback method);
public static extern int BAL_SetOnLePeso(IntPtr balHandle, LePesoCallback method);
public static extern int BAL_SetOnLePeso(IntPtr balHandle, LePesoCallback method);
public static extern int BAL_SetOnLePeso(IntPtr balHandle, LePesoCallback method);