ncurses 5.9 - patch 20120303

[ncurses.git] / man / resizeterm.3x

diff --git a/man/resizeterm.3x b/man/resizeterm.3x
index 562c35328901cba75ca152f041bbd0e56170d52a..ddb47e76bf92aa43c72ce455fabfb964ba9ceb43 100644 (file)
--- a/man/resizeterm.3x
+++ b/man/resizeterm.3x
@@ -1,5 +1,5 @@
 .\"***************************************************************************
-.\" Copyright (c) 1998,2002 Free Software Foundation, Inc.                   *
+.\" Copyright (c) 1998-2005,2010 Free Software Foundation, Inc.              *
 .\"                                                                          *
 .\" Permission is hereby granted, free of charge, to any person obtaining a  *
 .\" copy of this software and associated documentation files (the            *
@@ -26,17 +26,17 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
-.\" Author: Thomas E. Dickey <dickey@clark.net> 1996,1997,2002
+.\" Author: Thomas E. Dickey 1996-2005
 .\"
-.\" $Id: resizeterm.3x,v 1.9 2002/02/16 22:32:24 tom Exp $
+.\" $Id: resizeterm.3x,v 1.14 2010/12/04 18:38:55 tom Exp $
 .TH resizeterm 3X ""
 .SH NAME
 \fBis_term_resized\fR,
 \fBresize_term\fR,
-\fBresizeterm\fR - change the curses terminal size
+\fBresizeterm\fR \- change the curses terminal size
 .SH SYNOPSIS
 \fB#include <curses.h>\fR
-
+.sp
 \fBbool is_term_resized(int lines, int columns);\fR
 .br
 \fBint resize_term(int lines, int columns);\fR
@@ -49,7 +49,7 @@ primarily for use by programs running in an X Window terminal (e.g., xterm).
 The function \fBresizeterm\fR resizes the standard and current windows
 to the specified dimensions, and adjusts other bookkeeping data used by
 the \fBncurses\fR library that record the window dimensions.
-
+.LP
 Most of the work is done by the inner function \fBresize_term\fR.
 The outer function \fBresizeterm\fR adds bookkeeping for the SIGWINCH handler.
 When resizing the windows,
@@ -59,7 +59,7 @@ The \fBresize_term\fR function attempts to resize all windows.
 However, due to the calling convention of pads,
 it is not possible to resize these
 without additional interaction with the application.
-
+.LP
 A support function \fBis_term_resized\fR is provided so that applications
 can check if the \fBresize_term\fR function would modify the window structures.
 It returns TRUE if the windows would be modified, and FALSE otherwise.
@@ -80,13 +80,16 @@ will be read on the next call to \fBgetch\fR.
 This is used to alert an application that the screen size has changed,
 and that it should repaint special features such as pads that cannot
 be done automatically.
+.PP
+If the environment variables \fBLINES\fP or \fBCOLUMNS\fP are set,
+this overrides the library's use of the window size obtained from
+the operating system.
+Thus, even if a SIGWINCH is received,
+no screen size change may be recorded.
+In that case, no \fBKEY_RESIZE\fP is queued for the next call to \fBgetch\fP;
+an \fBERR\fP will be returned instead.
 .SH SEE ALSO
+\fBcurs_variables\fR(3X),
 \fBwresize\fR(3X).
 .SH AUTHOR
 Thomas Dickey (from an equivalent function written in 1988 for BSD curses).
-.\"#
-.\"# The following sets edit modes for GNU EMACS
-.\"# Local Variables:
-.\"# mode:nroff
-.\"# fill-column:79
-.\"# End: