getchar() used for keyboard i/p

QNX Newsgroups (Archives) qdn.public.qnxrtp.newuser
1

Problem with getchar().

Using qcc and x86 platform.

c=getchar(); only returns when CR is hit and not when any other key is
pressed.
What am I doing wrong and how can I get round this?

Is there an eqivalent to a Kbhit() function ?

Ian

2

Is there an eqivalent to a Kbhit() function ?

A FAQ of programmers coming from DOS env.

Search in the major search engines by “kbhit UNIX curses” and
you’ll have bunch of suggestions.

kabe
Wow, isn’t search engines great…

3

In particular look at the readcond() function. The QNX6 extensions are
very useful for a lot of things like this.

Dave

kabe@sra-tohoku.co.jp wrote:

Is there an eqivalent to a Kbhit() function ?


A FAQ of programmers coming from DOS env.

Search in the major search engines by “kbhit UNIX curses” and
you’ll have bunch of suggestions.

kabe
Wow, isn’t search engines great…

4

Ian Gibb <iang@maconmgt.co.uk> wrote:
: Is there an eqivalent to a Kbhit() function ?

Take a look at the QNX 4 → QNX 6 Migration guide at:

http://qdn.qnx.com/support/docs/mig4nto/index.html

It mentions tcischars() as a replacement for kbhit().

Steve Reid stever@qnx.com
TechPubs (Technical Publications)
QNX Software Systems

5

Your terminal needs to be in “raw” mode. See tcesetattr().

Marty Doane
Siemens Dematic

“Ian Gibb” <iang@maconmgt.co.uk> wrote in message
news:a3pl9m$caj$1@inn.qnx.com…

Problem with getchar().

Using qcc and x86 platform.

c=getchar(); only returns when CR is hit and not when any other key is
pressed.
What am I doing wrong and how can I get round this?

Is there an eqivalent to a Kbhit() function ?

Ian

6

Oops, tcsetattr().

“Marty Doane” <marty.doane@rapistan.com> wrote in message
news:a3rpc2$st6$1@inn.qnx.com…

Your terminal needs to be in “raw” mode. See tcesetattr().

Marty Doane
Siemens Dematic

“Ian Gibb” <> iang@maconmgt.co.uk> > wrote in message
news:a3pl9m$caj$> 1@inn.qnx.com> …
Problem with getchar().

Using qcc and x86 platform.

c=getchar(); only returns when CR is hit and not when any other key is
pressed.
What am I doing wrong and how can I get round this?

Is there an eqivalent to a Kbhit() function ?

Ian

\

7

Thanks, works fine now :slight_smile:

“Marty Doane” <marty.doane@rapistan.com> wrote in message
news:a3rpjn$sv5$1@inn.qnx.com…

Oops, tcsetattr().

“Marty Doane” <> marty.doane@rapistan.com> > wrote in message
news:a3rpc2$st6$> 1@inn.qnx.com> …
Your terminal needs to be in “raw” mode. See tcesetattr().

Marty Doane
Siemens Dematic

“Ian Gibb” <> iang@maconmgt.co.uk> > wrote in message
news:a3pl9m$caj$> 1@inn.qnx.com> …
Problem with getchar().

Using qcc and x86 platform.

c=getchar(); only returns when CR is hit and not when any other key is
pressed.
What am I doing wrong and how can I get round this?

Is there an eqivalent to a Kbhit() function ?

Ian



\