Function RTPrintByte

Function RTPrintByte sends a byte of data to an LPT port:

BYTE RTPrintByte(int Port, BYTE Data, DWORD Timeout);

Parameters

Port

Must be one of the values RT_LPT1, RT_LPT2, RT_LPT3, or RT_LPT4, which RTTarget-32 maps to I/O port address 378h, 278h, and 3BCh, respectively. There is no default address for RT_LPT4. If you need a fourth parallel port, you can use RT_LPT4 only after having called RTPrinterSetIOBase(RT_LPT4, ...);

Data

The byte to output to the printer.

Timeout

specifies in milliseconds how long the function should wait for the printer not to signal busy before returning a timeout error.

return value

The printer's status, see function RTPrinterStatus for details.

Function RTPrinterStatus