From: Groepaz (groepaz_at_gmx.net)
Date: 2002-12-14 16:16:52
On Friday 13 December 2002 19:47, Greg King wrote:
> MagerValp's way is more transparent. A programmer should not need to
> wonder if a key exists or not -- he simply should use it! Each
> implementation "secretly" should take care of those "niggling" little
> details about "Is it there?", "Where is it?", "How does it look?", "Should
> there be a substitute?", and "What should be that substitute?".
>
> That example should be simply:
>
> switch (cgetc()) {
> ...
> case CH_ESC:
> /* Do the escape-procedure. */
> ...
> break;
> ...
> }
>
> "Behind the scenes," the implementation's header-file would have chosen the
> appropriate character for that -- portable -- test.
>
> The same thing goes for the function-key names! Do the Apple and Atari
> keyboards have actual function-keys, or did someone decide that pressing
> two keys simultaneously will have the same effect as a true function-key?
> That's "appropriate substitution." Do it for all targets -- every one of
> them should have ten function-keys -- real or simulated. (If a keyboard
> physically doesn't have enough available codes, then perhaps, some codes
> could be "borrowed" from other key-combinations. Would that really break
> any [well-written] programs?)
gotta agree with that :o)
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