tIOStdReq

type tIOStdReq = record

  io_Message: tMessage;

Message structure

  io_Device: pDevice;

Pointer to device to use

  io_Unit: pUnit;

Pointer to unit, depend on the device

  io_Command: Word;

Command to sent to device

  io_Flags: Byte;

Flags for device, depend on device.

  io_Error: ShortInt;

Error of device, depend on device

  io_Actual: LongWord;

Number of bytes sent to device

  io_Length: LongWord;

Number of bytes transfered.

  io_Data: Pointer;

Pointer to data buffer

  io_Offset: LongWord;

Offset for block structured devices

end;