Text Editor

SuperTek · March 16th, 2003, 19:44

I´m making my own text editor in C and i cant figured out something:

How can i know if the user is pressing shift or ctrl? I use Linux so those DOS libraries won´t work.

jegHegy · March 17th, 2003, 12:42

i think they have their own keycode, but i'm not sure. there are some experienced C programmers here, so expect a real answer from them ^^

nyaa

**Exophase** · March 17th, 2003, 20:20

Are you using SDL? SDL handles it fine, under the key mod stuff.

- Exo

SuperTek · March 17th, 2003, 22:54

Sometimes I use Allegro but what I really want to know is how to do it using only C Ansi. I think that´s the better way to learn. But thanks for your post anyway.

**ammoQ** · March 17th, 2003, 23:31

If you write an X application, it's easy: Both pressing and releasing the Shift or Ctrl-Button creates a KeyPress/KeyRelease Event. If you write a console application, it's hard.

__________________
If you think my English is bad, wait till you read my Polish.

**Exophase** · March 18th, 2003, 04:56

Quote:

Originally posted by SuperTek
Sometimes I use Allegro but what I really want to know is how to do it using only C Ansi. I think that´s the better way to learn. But thanks for your post anyway.

Strictly speaking there isn't a way to do it using ANSI C, because ANSI C doesn't standardize a means for doing so and in general C makes no attempt to have standard library access for many things, including extensive key support (well, there's getch(), but that's no good here). So what I'm what trying to say is that there isn't an ANSI C approach, and that it instead varies entirely on what platform you're programming for. That's why I strongly suggest you stick with something like SDL or yes, Allegro, because then you both make things easier on yourself and gain a lot more portability through the abstraction.

- Exo

Kraelis · March 18th, 2003, 05:10

Today, building everything from scratch isn't practical anymore. takes too long and too darn difficult. I used to have that approach, but when it came to actual formal programming, the time constraints imposed are simply too great to consider reinventing the wheel.

__________________
--KrÆlis Cross

Mundus vult decipi, ergo decipiatur

===============
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March 16th, 2003, 19:44	#1
SuperTek Registered User Join Date: Nov 2002 Posts: 4	Text Editor I´m making my own text editor in C and i cant figured out something: How can i know if the user is pressing shift or ctrl? I use Linux so those DOS libraries won´t work.

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March 17th, 2003, 12:42	#2
jegHegy Registered User Join Date: May 2001 Location: Hungary Posts: 2,184	i think they have their own keycode, but i'm not sure. there are some experienced C programmers here, so expect a real answer from them ^^ nyaa

March 17th, 2003, 20:20	#3
Exophase Emu author Join Date: Apr 2001 Location: Cleveland OH, USA Posts: 1,438	Are you using SDL? SDL handles it fine, under the key mod stuff. - Exo

March 17th, 2003, 22:54	#4
SuperTek Registered User Join Date: Nov 2002 Posts: 4	Sometimes I use Allegro but what I really want to know is how to do it using only C Ansi. I think that´s the better way to learn. But thanks for your post anyway.

March 17th, 2003, 23:31	#5
ammoQ Emu author Join Date: Mar 2002 Location: Vienna/Austria/Europe Posts: 1,168	If you write an X application, it's easy: Both pressing and releasing the Shift or Ctrl-Button creates a KeyPress/KeyRelease Event. If you write a console application, it's hard. __________________ If you think my English is bad, wait till you read my Polish.

March 18th, 2003, 05:10	#7
Kraelis Transcended Join Date: Jun 2001 Location: Moonlight Spire Posts: 1,409	Today, building everything from scratch isn't practical anymore. takes too long and too darn difficult. I used to have that approach, but when it came to actual formal programming, the time constraints imposed are simply too great to consider reinventing the wheel. __________________ --KrÆlis Cross Mundus vult decipi, ergo decipiatur =============== Athlon 64 x2 3800\| Asrock ALiveNF6G-VSTA \| Kingston DDR2 1 Gb RAM