Re: Can 'graphics' be a file descriptor?

On Wed, 2025-01-01 at 01:29 -0800, Keith Thompson wrote:

wij <wyniijj5@gmail.com> writes:

In recent revision of libwy (a C++ library that wraps Clib functions), I feel
the so called 'graphics' can be a file descriptor.

 
A file *descriptor* is a small integer referring to some file-like
entity, used with open/close/read/write.  There's no such thing in
standard C; it's a POSIX concept.
 
I don't think you're actually working with file descriptors, though it's
hard to tell.
 

  if((r=popen(GrSvr,cpid,frd,fwr))!=Ok) {
    WY_THROW(r);
  }

 
popen() is a POSIX function.  It takes two arguments, not four.
 
The code you posted is C++.  Why are you posting it to comp.lang.c?
 
[...]

I would like to have opinions about the idea "graphics being a file descriptor".
The implement is irrevent for the discussion. Some imagination is required.