Re: getch always returns -1 after shell

[jon wackley]

Hi,

This unfortunately did nothing.  It does seem that something is wrong with
stdin.  Is there a reset command or something similar?

Thanks,
jonw

jon wackley wrote:

Hi Thomas,

Yes I am using nodelay(stdscr, FALSE) to try to correct this problem.  This seems to have no effect.  I'm currently looking to determine if stdin is being closed or altered by the shell processing.  I duped the stdio handles to /dev/null to see if this will change anything.  If you have any suggestions further to this please feel free to let me know.

Thanks,
jonw

Thomas Dickey wrote:

On Mon, Jan 27, 2003 at 08:13:34PM -0500, jon wackley wrote:
  

Hi,

I have a problem with ncurses-5.3, I use the following pseudo-code;

  def_prog_mode();
    

The def_prog_mode call seems redundant, but I don't see anything offhand
that would be a problem.  Perhaps you're using some settings such as
nodelay() which might be not working as intended?

  

  endwin();
  /* spawn some shell processing */
  refresh();

Everything seems fine until the next execution of getch().  getch always 
returns -1, (ERR).  Is there something special I have to do to ensure 
the input state is consistent before and after spawning shell commands? 
Any suggestions where to look to track down this problem?  The term is a 
"sun-cmd".

Thanks,
jonw




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