meaning of outport(LPT1,00)

[nimmiejoey]

Hello everybody,
could you please tell me the meaning of the command outport(LPT1,00)

 

[Richard Bos]

could you please tell me the meaning of the command outport(LPT1,00)

Under ISO C, nothing. Under many OSes out there today, nothing.

<off-topic>
Under MS-DOS, if whoever designed this extension was not being
intentionally confusing, it probably sends a null byte to the first
parallel port.
</off-topic>

If you want to be certain, ask this question again in a newsgroup that
discusses whatever compiler suite you are using.

Richard

 

[Martin Ambuhl]

Hello everybody,
could you please tell me the meaning of the command outport(LPT1,00)

Someone in a newsgroup, mailing list, or tech support for your
implementation might.
Notice that C has no commands. If
outport(LPT1,00);
appears in a C program, it is a function call of a non-standard function
having two arguments. It is extremely dangerous, although tempting, to
make assumptions about what your implementation thinks this function
does or what appears to be a macro LPT1 does. Any guesses that might be
made would do you a disservice: check your implementation's
documentation for the real answer.

 

[Neil]

Hello everybody,
could you please tell me the meaning of the command outport(LPT1,00)

1st Off topic.

It looks like a call to a function for DOS.

It sends 0 the the printers "port address"