.\" authorization. *
.\"***************************************************************************
.\"
-.\" $Id: curs_terminfo.3x,v 1.26 2007/02/24 16:37:50 tom Exp $
+.\" $Id: curs_terminfo.3x,v 1.28 2007/05/26 20:09:06 tom Exp $
.TH curs_terminfo 3X ""
.ds n 5
.na
Initially, \fBsetupterm\fR should be called. Note that
\fBsetupterm\fR is automatically called by \fBinitscr\fR and
\fBnewterm\fR. This defines the set of terminal-dependent variables
-[listed in \fBterminfo\fR(\*n)]. The \fBterminfo\fR variables
+[listed in \fBterminfo\fR(\*n)].
+The \fBterminfo\fR variables
\fBlines\fR and \fBcolumns\fR are initialized by \fBsetupterm\fR as
-follows: If \fBuse_env(FALSE)\fR has been called, values for
+follows:
+.RS
+.PP
+If \fBuse_env(FALSE)\fR has been called, values for
\fBlines\fR and \fBcolumns\fR specified in \fBterminfo\fR are used.
+.PP
Otherwise, if the environment variables \fBLINES\fR and \fBCOLUMNS\fR
exist, their values are used. If these environment variables do not
exist and the program is running in a window, the current window size
is used. Otherwise, if the environment variables do not exist, the
values for \fBlines\fR and \fBcolumns\fR specified in the
\fBterminfo\fR database are used.
+.RE
.PP
The header files \fBcurses.h\fR and \fBterm.h\fR should be included (in this
order) to get the definitions for these strings, numbers, and flags.
example, when reloading a game saved as a core image dump). It assumes that
the windows and the input and output options are the same as when memory was
saved, but the terminal type and baud rate may be different. Accordingly,
-it saves various tty state bits, does a setupterm, and then restores the bits.
+it saves various tty state bits, calls \fBsetupterm\fP,
+and then restores the bits.
.PP
The \fBtparm\fR routine instantiates the string \fIstr\fR with
parameters \fIpi\fR. A pointer is returned to the result of \fIstr\fR
be considered non-portable. All other functions are as described in the XSI
curses standard.
.PP
+\fBsetupterm\fP copies the terminal name to the array \fBttytype\fP.
+This is not part of X/Open Curses, but is assumed by some applications.
+.PP
In System V Release 4, \fBset_curterm\fR has an \fBint\fR return type and
returns \fBOK\fR or \fBERR\fR. We have chosen to implement the XSI Curses
semantics.
So though it is documented as a terminfo function,
\fBmvcur\fR is really a curses function which is not well specified.
.PP
-XSI states that the old location must be given.
+XSI states that the old location must be given for \fBmvcur\fP.
This implementation allows the caller to use -1's for the old ordinates.
In that case, the old location is unknown.
.PP