diff options
Diffstat (limited to 'doc/html/man/curs_kernel.3x.html')
| -rw-r--r-- | doc/html/man/curs_kernel.3x.html | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/doc/html/man/curs_kernel.3x.html b/doc/html/man/curs_kernel.3x.html new file mode 100644 index 0000000000000..a2e247cea512f --- /dev/null +++ b/doc/html/man/curs_kernel.3x.html @@ -0,0 +1,206 @@ +<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> +<!-- + **************************************************************************** + * 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 * + * "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 1.19 2010/12/04 18:38:55 tom Exp @ +--> +<HTML> +<HEAD> +<TITLE>curs_kernel 3x</TITLE> +<link rev=made href="mailto:bug-ncurses@gnu.org"> +<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> +</HEAD> +<BODY> +<H1>curs_kernel 3x</H1> +<HR> +<PRE> +<!-- Manpage converted by man2html 3.0.1 --> +<STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG> <STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG> + + + + +</PRE> +<H2>NAME</H2><PRE> + <STRONG>def_prog_mode</STRONG>, <STRONG>def_shell_mode</STRONG>, <STRONG>reset_prog_mode</STRONG>, + <STRONG>reset_shell_mode</STRONG>, <STRONG>resetty</STRONG>, <STRONG>savetty</STRONG>, <STRONG>getsyx</STRONG>, <STRONG>setsyx</STRONG>, + <STRONG>ripoffline</STRONG>, <STRONG>curs_set</STRONG>, <STRONG>napms</STRONG> - low-level <STRONG>curses</STRONG> routines + + +</PRE> +<H2>SYNOPSIS</H2><PRE> + <STRONG>#include</STRONG> <STRONG><curses.h></STRONG> + + <STRONG>int</STRONG> <STRONG>def_prog_mode(void);</STRONG> + <STRONG>int</STRONG> <STRONG>def_shell_mode(void);</STRONG> + <STRONG>int</STRONG> <STRONG>reset_prog_mode(void);</STRONG> + <STRONG>int</STRONG> <STRONG>reset_shell_mode(void);</STRONG> + <STRONG>int</STRONG> <STRONG>resetty(void);</STRONG> + <STRONG>int</STRONG> <STRONG>savetty(void);</STRONG> + <STRONG>void</STRONG> <STRONG>getsyx(int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x);</STRONG> + <STRONG>void</STRONG> <STRONG>setsyx(int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x);</STRONG> + <STRONG>int</STRONG> <STRONG>ripoffline(int</STRONG> <STRONG>line,</STRONG> <STRONG>int</STRONG> <STRONG>(*init)(WINDOW</STRONG> <STRONG>*,</STRONG> <STRONG>int));</STRONG> + <STRONG>int</STRONG> <STRONG>curs_set(int</STRONG> <STRONG>visibility);</STRONG> + <STRONG>int</STRONG> <STRONG>napms(int</STRONG> <STRONG>ms);</STRONG> + + +</PRE> +<H2>DESCRIPTION</H2><PRE> + The following routines give low-level access to various + <STRONG>curses</STRONG> capabilities. These routines typically are used + inside library routines. + + The <STRONG>def_prog_mode</STRONG> and <STRONG>def_shell_mode</STRONG> routines save the + current terminal modes as the "program" (in <STRONG>curses</STRONG>) or + "shell" (not in <STRONG>curses</STRONG>) state for use by the <STRONG>re-</STRONG> + <STRONG>set_prog_mode</STRONG> and <STRONG>reset_shell_mode</STRONG> routines. This is done + automatically by <STRONG>initscr</STRONG>. There is one such save area for + each screen context allocated by <STRONG>newterm()</STRONG>. + + The <STRONG>reset_prog_mode</STRONG> and <STRONG>reset_shell_mode</STRONG> routines restore + the terminal to "program" (in <STRONG>curses</STRONG>) or "shell" (out of + <STRONG>curses</STRONG>) state. These are done automatically by <STRONG>endwin</STRONG> + and, after an <STRONG>endwin</STRONG>, by <STRONG>doupdate</STRONG>, so they normally are + not called. + + The <STRONG>resetty</STRONG> and <STRONG>savetty</STRONG> routines save and restore the + state of the terminal modes. <STRONG>savetty</STRONG> saves the current + state in a buffer and <STRONG>resetty</STRONG> restores the state to what + it was at the last call to <STRONG>savetty</STRONG>. + + The <STRONG>getsyx</STRONG> routine returns the current coordinates of the + virtual screen cursor in <EM>y</EM> and <EM>x</EM>. If <STRONG>leaveok</STRONG> is currently + <STRONG>TRUE</STRONG>, then <STRONG>-1</STRONG>,<STRONG>-1</STRONG> is returned. If lines have been removed + from the top of the screen, using <STRONG>ripoffline</STRONG>, <EM>y</EM> and <EM>x</EM> in- + clude these lines; therefore, <EM>y</EM> and <EM>x</EM> should be used only + as arguments for <STRONG>setsyx</STRONG>. + + The <STRONG>setsyx</STRONG> routine sets the virtual screen cursor to <EM>y</EM>, <EM>x</EM>. + If <EM>y</EM> and <EM>x</EM> are both <STRONG>-1</STRONG>, then <STRONG>leaveok</STRONG> is set. The two rou- + tines <STRONG>getsyx</STRONG> and <STRONG>setsyx</STRONG> are designed to be used by a li- + brary routine, which manipulates <STRONG>curses</STRONG> windows but does + not want to change the current position of the program's + cursor. The library routine would call <STRONG>getsyx</STRONG> at the be- + ginning, do its manipulation of its own windows, do a + <STRONG>wnoutrefresh</STRONG> on its windows, call <STRONG>setsyx</STRONG>, and then call + <STRONG>doupdate</STRONG>. + + The <STRONG>ripoffline</STRONG> routine provides access to the same facili- + ty that <STRONG>slk_init</STRONG> [see <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>] uses to reduce the + size of the screen. <STRONG>ripoffline</STRONG> must be called before + <STRONG>initscr</STRONG> or <STRONG>newterm</STRONG> is called. If <EM>line</EM> is positive, a line + is removed from the top of <STRONG>stdscr</STRONG>; if <EM>line</EM> is negative, a + line is removed from the bottom. When this is done inside + <STRONG>initscr</STRONG>, the routine <STRONG>init</STRONG> (supplied by the user) is called + with two arguments: a window pointer to the one-line win- + dow that has been allocated and an integer with the number + of columns in the window. Inside this initialization rou- + tine, the integer variables <STRONG>LINES</STRONG> and <STRONG>COLS</STRONG> (defined in + <STRONG><curses.h></STRONG>) are not guaranteed to be accurate and <STRONG>wrefresh</STRONG> + or <STRONG>doupdate</STRONG> must not be called. It is allowable to call + <STRONG>wnoutrefresh</STRONG> during the initialization routine. + + <STRONG>ripoffline</STRONG> can be called up to five times before calling + <STRONG>initscr</STRONG> or <STRONG>newterm</STRONG>. + + The <STRONG>curs_set</STRONG> routine sets the cursor state to invisible, + normal, or very visible for <STRONG>visibility</STRONG> equal to <STRONG>0</STRONG>, <STRONG>1</STRONG>, or <STRONG>2</STRONG> + respectively. If the terminal supports the <EM>visibility</EM> re- + quested, the previous <EM>cursor</EM> state is returned; otherwise, + <STRONG>ERR</STRONG> is returned. + + The <STRONG>napms</STRONG> routine is used to sleep for <EM>ms</EM> milliseconds. + + +</PRE> +<H2>RETURN VALUE</H2><PRE> + Except for <STRONG>curs_set</STRONG>, these routines always return <STRONG>OK</STRONG>. + + <STRONG>curs_set</STRONG> returns the previous cursor state, or <STRONG>ERR</STRONG> if the + requested <EM>visibility</EM> is not supported. + + X/Open defines no error conditions. In this implementa- + tion + + <STRONG>def_prog_mode</STRONG>, <STRONG>def_shell_mode</STRONG>, <STRONG>reset_prog_mode</STRONG>, <STRONG>re-</STRONG> + <STRONG>set_shell_mode</STRONG> + return an error if the terminal was not ini- + tialized, or if the I/O call to obtain the + terminal settings fails. + + <STRONG>ripoffline</STRONG> + returns an error if the maximum number of + ripped-off lines exceeds the maximum (NRIPS = + 5). + + +</PRE> +<H2>NOTES</H2><PRE> + Note that <STRONG>getsyx</STRONG> is a macro, so <STRONG>&</STRONG> is not necessary before + the variables <EM>y</EM> and <EM>x</EM>. + + Older SVr4 man pages warn that the return value of + <STRONG>curs_set</STRONG> "is currently incorrect". This implementation + gets it right, but it may be unwise to count on the cor- + rectness of the return value anywhere else. + + Both ncurses and SVr4 will call <STRONG>curs_set</STRONG> in <STRONG>endwin</STRONG> if + <STRONG>curs_set</STRONG> has been called to make the cursor other than + normal, i.e., either invisible or very visible. There is + no way for ncurses to determine the initial cursor state + to restore that. + + +</PRE> +<H2>PORTABILITY</H2><PRE> + The functions <STRONG>setsyx</STRONG> and <STRONG>getsyx</STRONG> are not described in the + XSI Curses standard, Issue 4. All other functions are as + described in XSI Curses. + + The SVr4 documentation describes <STRONG>setsyx</STRONG> and <STRONG>getsyx</STRONG> as hav- + ing return type int. This is misleading, as they are + macros with no documented semantics for the return value. + + +</PRE> +<H2>SEE ALSO</H2><PRE> + <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_initscr.3x.html">curs_initscr(3x)</A></STRONG>, <STRONG><A HREF="curs_outopts.3x.html">curs_outopts(3x)</A></STRONG>, <STRONG>curs_re-</STRONG> + <STRONG><A HREF="curs_refresh.3x.html">fresh(3x)</A></STRONG>, <STRONG><A HREF="curs_scr_dump.3x.html">curs_scr_dump(3x)</A></STRONG>, <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>, <STRONG>curs_vari-</STRONG> + <STRONG><A HREF="curs_variables.3x.html">ables(3x)</A></STRONG>. + + + + <STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG> +</PRE> +<HR> +<ADDRESS> +Man(1) output converted with +<a href="http://www.oac.uci.edu/indiv/ehood/man2html.html">man2html</a> +</ADDRESS> +</BODY> +</HTML> |