nanogui: Thread: Problem with keys ...

Hi,

I am having a problem with the keyboard events. I want to catch all
(keyboard) events and then filter out some of  them. I am able to get
ascii values of all integer/character keys. But as soon as I press any
of the function keys or esc, insert, home, end keys, the program exits.

Can anyone tell me how to remove the default action (exit) for these key
events so that my program can catch them...

Regds,

Ritesh.

: I am having a problem with the keyboard events. I want to catch all
: (keyboard) events and then filter out some of  them. I am able to get
: ascii values of all integer/character keys. But as soon as I press any
: of the function keys or esc, insert, home, end keys, the program exits.

Run "nano-X -e" to disable the development version feature
where "ESC" terminates the server.  The function keys all start
with an ESC prefix.

Regards,

Greg

Hi !!

I am not running the server Nano-X but instead linking application into
server. So what do I need to do to disable the development version
feature.

Thanks,

Ritesh.

Greg Haerr wrote:

> : I am having a problem with the keyboard events. I want to catch all
> : (keyboard) events and then filter out some of  them. I am able to
get
> : ascii values of all integer/character keys. But as soon as I press
any
> : of the function keys or esc, insert, home, end keys, the program
exits.
>
> Run "nano-X -e" to disable the development version feature
> where "ESC" terminates the server.  The function keys all start
> with an ESC prefix.
>
> Regards,
>
> Greg

: I am not running the server Nano-X but instead linking application into
: server. So what do I need to do to disable the development version
: feature.

At this point, initialize the variable escape_quits to 0
in src/nanox/srvmain.c and recompile.

Regards,

Greg




: 
: Thanks,
: 
: Ritesh.
: 
: Greg Haerr wrote:
: 
: > : I am having a problem with the keyboard events. I want to catch all
: > : (keyboard) events and then filter out some of  them. I am able to
: get
: > : ascii values of all integer/character keys. But as soon as I press
: any
: > : of the function keys or esc, insert, home, end keys, the program
: exits.
: >
: > Run "nano-X -e" to disable the development version feature
: > where "ESC" terminates the server.  The function keys all start
: > with an ESC prefix.
: >
: > Regards,
: >
: > Greg
: 
: 

Hi,

Its still not working. Escape, function, arrow, pagegup, pagedown keys
terminate the application. I initialized escape_quits to 0, recompiled nanox,
recompiled my program. The program still terminates on pressing any of these
keys.

Regds,

Ritesh.

Greg Haerr wrote:

> : I am not running the server Nano-X but instead linking application into
> : server. So what do I need to do to disable the development version
> : feature.
>
> At this point, initialize the variable escape_quits to 0
> in src/nanox/srvmain.c and recompile.
>
> Regards,
>
> Greg
>
> :
> : Thanks,
> :
> : Ritesh.
> :
> : Greg Haerr wrote:
> :
> : > : I am having a problem with the keyboard events. I want to catch all
> : > : (keyboard) events and then filter out some of  them. I am able to
> : get
> : > : ascii values of all integer/character keys. But as soon as I press
> : any
> : > : of the function keys or esc, insert, home, end keys, the program
> : exits.
> : >
> : > Run "nano-X -e" to disable the development version feature
> : > where "ESC" terminates the server.  The function keys all start
> : > with an ESC prefix.
> : >
> : > Regards,
> : >
> : > Greg
> :
> :

: Its still not working. Escape, function, arrow, pagegup, pagedown keys
: terminate the application. I initialized escape_quits to 0, recompiled nanox,
: recompiled my program. The program still terminates on pressing any of these
: keys.

Hmm..  greping the code shows that there's yet another instance
of escape_quits being set to 1, just inside GrOpen() in nanox/srvmain.c.
Change this to =0 as well.

Regards,

Greg



: 
: Regds,
: 
: Ritesh.
: 
: Greg Haerr wrote:
: 
: > : I am not running the server Nano-X but instead linking application into
: > : server. So what do I need to do to disable the development version
: > : feature.
: >
: > At this point, initialize the variable escape_quits to 0
: > in src/nanox/srvmain.c and recompile.
: >
: > Regards,
: >
: > Greg
: >
: > :
: > : Thanks,
: > :
: > : Ritesh.
: > :
: > : Greg Haerr wrote:
: > :
: > : > : I am having a problem with the keyboard events. I want to catch all
: > : > : (keyboard) events and then filter out some of  them. I am able to
: > : get
: > : > : ascii values of all integer/character keys. But as soon as I press
: > : any
: > : > : of the function keys or esc, insert, home, end keys, the program
: > : exits.
: > : >
: > : > Run "nano-X -e" to disable the development version feature
: > : > where "ESC" terminates the server.  The function keys all start
: > : > with an ESC prefix.
: > : >
: > : > Regards,
: > : >
: > : > Greg
: > :
: > :
: 
: 

Hi Greg,

Its still not working. Escape, function, arrow, pagegup, pagedown keys
terminate the application. I initialized escape_quits to 0, recompiled
nanox,
recompiled my program. The program still terminates on pressing any of
these
keys.

Regds,

Ritesh.

Greg Haerr wrote:

> : I am not running the server Nano-X but instead linking application
into
> : server. So what do I need to do to disable the development version
> : feature.
>
> At this point, initialize the variable escape_quits to 0
> in src/nanox/srvmain.c and recompile.
>
> Regards,
>
> Greg
>
> :
> : Thanks,
> :
> : Ritesh.
> :
> : Greg Haerr wrote:
> :
> : > : I am having a problem with the keyboard events. I want to catch
all
> : > : (keyboard) events and then filter out some of  them. I am able
to
> : get
> : > : ascii values of all integer/character keys. But as soon as I
press
> : any
> : > : of the function keys or esc, insert, home, end keys, the program

> : exits.
> : >
> : > Run "nano-X -e" to disable the development version feature
> : > where "ESC" terminates the server.  The function keys all start
> : > with an ESC prefix.
> : >
> : > Regards,
> : >
> : > Greg
> :
> :


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: Its still not working. Escape, function, arrow, pagegup, pagedown keys
: terminate the application. I initialized escape_quits to 0, recompiled
: nanox,
: recompiled my program. The program still terminates on pressing any of
: these
: keys.

It's _still_ not working?@#$W#$?!!

Well, let's bring out the heavy artillery on this one.  I assume you've
got BOTH instances of escape_quits set to 0 in nanox/srvmain.c.

Modify the keyboard driver to NEVER return -2, which is what ESC
has been special cased to do.  For instance, in drivers/kbd_tty.c,
function TTY_Read, remove the following line:

    if(*buf == 0x1b)
        return -2;

Regards,

Greg

It worked - thanks.

Another problem:
The variable 'special' of structure GR_EVENT_KEYSTROKE always returns 0,
which indicates GR_SPECIAL_KEY_NOSPECIAL whereas it should return some
non-zero identifier for  keys such as function keys, esc, tab, arrow etc.

Can u tell me what's going wrong.

Thanks,

Ritesh.

Greg Haerr wrote:

> : Its still not working. Escape, function, arrow, pagegup, pagedown keys
> : terminate the application. I initialized escape_quits to 0, recompiled
> : nanox,
> : recompiled my program. The program still terminates on pressing any of
> : these
> : keys.
>
> It's _still_ not working?@#$W#$?!!
>
> Well, let's bring out the heavy artillery on this one.  I assume you've
> got BOTH instances of escape_quits set to 0 in nanox/srvmain.c.
>
> Modify the keyboard driver to NEVER return -2, which is what ESC
> has been special cased to do.  For instance, in drivers/kbd_tty.c,
> function TTY_Read, remove the following line:
>
>     if(*buf == 0x1b)
>         return -2;
>
> Regards,
>
> Greg
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: ####@####.####
> For additional commands, e-mail: ####@####.####

Hi !

The variable 'special' of structure GR_EVENT_KEYSTROKE always returns 0,

which indicates GR_SPECIAL_KEY_NOSPECIAL whereas it should return some
non-zero identifier for  keys such as function keys, esc, tab, arrow
etc.

Can u tell me what's going wrong.

Thanks,

Ritesh.

Greg Haerr wrote:

> : Its still not working. Escape, function, arrow, pagegup, pagedown
keys
> : terminate the application. I initialized escape_quits to 0,
recompiled
> : nanox,
> : recompiled my program. The program still terminates on pressing any
of
> : these
> : keys.
>
> It's _still_ not working?@#$W#$?!!
>
> Well, let's bring out the heavy artillery on this one.  I assume
you've
> got BOTH instances of escape_quits set to 0 in nanox/srvmain.c.
>
> Modify the keyboard driver to NEVER return -2, which is what ESC
> has been special cased to do.  For instance, in drivers/kbd_tty.c,
> function TTY_Read, remove the following line:
>
>     if(*buf == 0x1b)
>         return -2;
>
> Regards,
>
> Greg