mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-26 11:47:31 +00:00
153 lines
7.2 KiB
Plaintext
153 lines
7.2 KiB
Plaintext
|
.\"***************************************************************************
|
||
|
|
.\" Copyright (c) 1998 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 *
|
||
|
|
.\" "Software"), to deal in the Software without restriction, including *
|
||
|
|
.\" without limitation the rights to use, copy, modify, merge, publish, *
|
||
|
|
.\" distribute, distribute with modifications, sublicense, and/or sell *
|
||
|
|
.\" copies of the Software, and to permit persons to whom the Software is *
|
||
|
|
.\" furnished to do so, subject to the following conditions: *
|
||
|
|
.\" *
|
||
|
|
.\" The above copyright notice and this permission notice shall be included *
|
||
|
|
.\" in all copies or substantial portions of the Software. *
|
||
|
|
.\" *
|
||
|
|
.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
|
||
|
|
.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
|
||
|
|
.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
|
||
|
|
.\" IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
|
||
|
|
.\" DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
|
||
|
|
.\" OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
|
||
|
|
.\" THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
|
||
|
|
.\" *
|
||
|
|
.\" Except as contained in this notice, the name(s) of the above copyright *
|
||
|
|
.\" holders shall not be used in advertising or otherwise to promote the *
|
||
|
|
.\" sale, use or other dealings in this Software without prior written *
|
||
|
|
.\" authorization. *
|
||
|
|
.\"***************************************************************************
|
||
|
|
.\"
|
||
|
|
.\" $Id: curs_kernel.3x,v 1.11 1998/06/27 21:56:38 tom Exp $
|
||
|
|
.TH curs_kernel 3X ""
|
||
|
|
.SH NAME
|
||
|
|
\fBdef_prog_mode\fR, \fBdef_shell_mode\fR,
|
||
|
|
\fBreset_prog_mode\fR, \fBreset_shell_mode\fR, \fBresetty\fR,
|
||
|
|
\fBsavetty\fR, \fBgetsyx\fR, \fBsetsyx\fR, \fBripoffline\fR,
|
||
|
|
\fBcurs_set\fR, \fBnapms\fR - low-level \fBcurses\fR routines
|
||
|
|
.SH SYNOPSIS
|
||
|
|
\fB#include <curses.h>\fR
|
||
|
|
|
||
|
|
\fBint def_prog_mode(void);\fR
|
||
|
|
.br
|
||
|
|
\fBint def_shell_mode(void);\fR
|
||
|
|
.br
|
||
|
|
\fBint reset_prog_mode(void);\fR
|
||
|
|
.br
|
||
|
|
\fBint reset_shell_mode(void);\fR
|
||
|
|
.br
|
||
|
|
\fBint resetty(void);\fR
|
||
|
|
.br
|
||
|
|
\fBint savetty(void);\fR
|
||
|
|
.br
|
||
|
|
\fBvoid getsyx(int y, int x);\fR
|
||
|
|
.br
|
||
|
|
\fBvoid setsyx(int y, int x);\fR
|
||
|
|
.br
|
||
|
|
\fBint ripoffline(int line, int (*init)(WINDOW *, int));\fR
|
||
|
|
.br
|
||
|
|
\fBint curs_set(int visibility);\fR
|
||
|
|
.br
|
||
|
|
\fBint napms(int ms);\fR
|
||
|
|
.br
|
||
|
|
.SH DESCRIPTION
|
||
|
|
The following routines give low-level access to various \fBcurses\fR
|
||
|
|
capabilities. Theses routines typically are used inside library
|
||
|
|
routines.
|
||
|
|
|
||
|
|
The \fBdef_prog_mode\fR and \fBdef_shell_mode\fR routines save the
|
||
|
|
current terminal modes as the "program" (in \fBcurses\fR) or "shell"
|
||
|
|
(not in \fBcurses\fR) state for use by the \fBreset_prog_mode\fR and
|
||
|
|
\fBreset_shell_mode\fR routines. This is done automatically by
|
||
|
|
\fBinitscr\fR. There is one such save area for each screen context
|
||
|
|
allocated by \fBnewterm()\fR.
|
||
|
|
|
||
|
|
The \fBreset_prog_mode\fR and \fBreset_shell_mode\fR routines restore
|
||
|
|
the terminal to "program" (in \fBcurses\fR) or "shell" (out of
|
||
|
|
\fBcurses\fR) state. These are done automatically by \fBendwin\fR
|
||
|
|
and, after an \fBendwin\fR, by \fBdoupdate\fR, so they normally are
|
||
|
|
not called.
|
||
|
|
|
||
|
|
The \fBresetty\fR and \fBsavetty\fR routines save and restore the
|
||
|
|
state of the terminal modes. \fBsavetty\fR saves the current state in
|
||
|
|
a buffer and \fBresetty\fR restores the state to what it was at the
|
||
|
|
last call to \fBsavetty\fR.
|
||
|
|
|
||
|
|
The \fBgetsyx\fR routine returns the current coordinates of the virtual screen
|
||
|
|
cursor in \fIy\fR and \fIx\fR. If \fBleaveok\fR is currently \fBTRUE\fR, then
|
||
|
|
\fB-1\fR,\fB-1\fR is returned. If lines have been removed from the top of the
|
||
|
|
screen, using \fBripoffline\fR, \fIy\fR and \fIx\fR include these lines;
|
||
|
|
therefore, \fIy\fR and \fIx\fR should be used only as arguments for
|
||
|
|
\fBsetsyx\fR.
|
||
|
|
|
||
|
|
The \fBsetsyx\fR routine sets the virtual screen cursor to
|
||
|
|
\fIy\fR, \fIx\fR. If \fIy\fR and \fIx\fR are both \fB-1\fR, then
|
||
|
|
\fBleaveok\fR is set. The two routines \fBgetsyx\fR and \fBsetsyx\fR
|
||
|
|
are designed to be used by a library routine, which manipulates
|
||
|
|
\fBcurses\fR windows but does not want to change the current position
|
||
|
|
of the program's cursor. The library routine would call \fBgetsyx\fR
|
||
|
|
at the beginning, do its manipulation of its own windows, do a
|
||
|
|
\fBwnoutrefresh\fR on its windows, call \fBsetsyx\fR, and then call
|
||
|
|
\fBdoupdate\fR.
|
||
|
|
|
||
|
|
The \fBripoffline\fR routine provides access to the same facility that
|
||
|
|
\fBslk_init\fR [see \fBcurs_slk\fR(3X)] uses to reduce the size of the
|
||
|
|
screen. \fBripoffline\fR must be called before \fBinitscr\fR or
|
||
|
|
\fBnewterm\fR is called. If \fIline\fR is positive, a line is removed
|
||
|
|
from the top of \fBstdscr\fR; if \fIline\fR is negative, a line is
|
||
|
|
removed from the bottom. When this is done inside \fBinitscr\fR, the
|
||
|
|
routine \fBinit\fR (supplied by the user) is called with two
|
||
|
|
arguments: a window pointer to the one-line window that has been
|
||
|
|
allocated and an integer with the number of columns in the window.
|
||
|
|
Inside this initialization routine, the integer variables \fBLINES\fR
|
||
|
|
and \fBCOLS\fR (defined in \fB<curses.h>\fR) are not guaranteed to be
|
||
|
|
accurate and \fBwrefresh\fR or \fBdoupdate\fR must not be called. It
|
||
|
|
is allowable to call \fBwnoutrefresh\fR during the initialization
|
||
|
|
routine.
|
||
|
|
|
||
|
|
\fBripoffline\fR can be called up to five times before calling \fBinitscr\fR or
|
||
|
|
\fBnewterm\fR.
|
||
|
|
|
||
|
|
The \fBcurs_set\fR routine sets the cursor state is set to invisible,
|
||
|
|
normal, or very visible for \fBvisibility\fR equal to \fB0\fR,
|
||
|
|
\fB1\fR, or \fB2\fR respectively. If the terminal supports the
|
||
|
|
\fIvisibility\fR requested, the previous \fIcursor\fR state is
|
||
|
|
returned; otherwise, \fBERR\fR is returned.
|
||
|
|
|
||
|
|
The \fBnapms\fR routine is used to sleep for \fIms\fR milliseconds.
|
||
|
|
.SH RETURN VALUE
|
||
|
|
Except for \fBcurs_set\fR, these routines always return \fBOK\fR.
|
||
|
|
\fBcurs_set\fR returns the previous cursor state, or \fBERR\fR if the
|
||
|
|
requested \fIvisibility\fR is not supported.
|
||
|
|
.SH NOTES
|
||
|
|
Note that \fBgetsyx\fR is a macro, so \fB&\fR is not necessary before
|
||
|
|
the variables \fIy\fR and \fIx\fR.
|
||
|
|
|
||
|
|
Older SVr4 man pages warn that the return value of \fBcurs_set\fR "is currently
|
||
|
|
incorrect". This implementation gets it right, but it may be unwise to count
|
||
|
|
on the correctness of the return value anywhere else.
|
||
|
|
.SH PORTABILITY
|
||
|
|
The functions \fBsetsyx\fR and \fBgetsyx\fR are not described in the XSI
|
||
|
|
Curses standard, Issue 4. All other functions are as described in XSI Curses.
|
||
|
|
|
||
|
|
The SVr4 documentation describes \fBsetsyx\fR and \fBgetsyx\fR as having return
|
||
|
|
type int. This is misleading, as they are macros with no documented semantics
|
||
|
|
for the return value.
|
||
|
|
.SH SEE ALSO
|
||
|
|
\fBcurses\fR(3X), \fBcurs_initscr\fR(3X), \fBcurs_outopts\fR(3X), \fBcurs_refresh\fR(3X),
|
||
|
|
\fBcurs_scr_dump\fR(3X), \fBcurs_slk\fR(3X)
|
||
|
|
.\"#
|
||
|
|
.\"# The following sets edit modes for GNU EMACS
|
||
|
|
.\"# Local Variables:
|
||
|
|
.\"# mode:nroff
|
||
|
|
.\"# fill-column:79
|
||
|
|
.\"# End:
|