TPCANTimestamp

typedef struct
{
    DWORD  millis;
    WORD   millis_overflow;
    WORD   micros;
} TPCANTimestamp;

TPCANTimestamp = record
    millis: Longword;
    millis_overflow: Word;
    micros: Word;
end;

public struct TPCANTimestamp
{
    public uint millis;
    public ushort millis_overflow;
    public ushort micros;
}

public value struct TPCANTimestamp
{
    UInt32 millis;
    UInt16 millis_overflow;
    UInt16 micros;
};

Public Structure TPCANTimestamp
    Public millis As UInt32
    Public millis_overflow As UInt16
    Public micros As UInt16
End Structure

from ctypes import *
class TPCANTimestamp (Structure):
    _fields_ = [ ("millis",  c_uint),
                 ("millis_overflow",  c_ushort),
                 ("micros",  c_ushort) ]

The members of this structure are sequentially byte aligned. 

Calculation of total of microseconds : micros + 1000 * millis + 0x100000000 * 1000 * millis_overflow

CAN_Write (class-method: Write) 

TPCANMsg