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From: ghosr@sersun0.essex.ac.uk (Ghosh-Roy R)
Newsgroups: comp.windows.x.motif
Subject: TTY_TTY_FD / Hangup
Message-ID: <4276@servax0.essex.ac.uk>
Date: 11 Oct 90 13:46:13 GMT
Sender: news@servax0.essex.ac.uk
Reply-To: ghosr@sersun0.essex.ac.uk (Ghosh-Roy R)
Organization: University of Essex, Colchester, UK
Lines: 27

I am using XView-2.0 to display a frame which has a panel with lots of 
buttons and a `tty' window. The buttons are used to call certain parts 
of my programs which work fine for stdout/stdin/stderr.

I have a `Print' button which `fprintf's lots of strings on the stdout
without any problem, for any amount of printing. I then decided to use 
TTY_TTY_FD and dup2 on my `tty' window to imitate `stdout'. Of course,
it works fine and it `fprintf's happily on my `tty' window. However it 
does not print anything if there are lots to print.

Note: The problem does not arise at all for normal `stdout'.

Is there any buffer length restriction on the amount one can print, on
a tty window created by the user?


I also have a `Quit' button which activates xv_destroy_frame(frame). I
am surprised to find that it reports `Hangup' error message even if it
is pushed just after displaying the window.

Note: My programs don't initialize anything unless activated by a push
	  button.

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