mirror of
https://github.com/Aigor44/ncursesw-morphos.git
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ce4803687b
+ fix several formatting issues with manual pages. + correct read of terminfo entry in which all strings are absent or explicitly cancelled. Before this fix, the result was that all were treated as only absent. + modify infocmp to suppress mixture of absent/cancelled capabilities that would only show as "NULL, NULL", unless the -q option is used, e.g., to show "-, @" or "@, -".
155 lines
8.7 KiB
HTML
155 lines
8.7 KiB
HTML
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* @Id: curs_getstr.3x,v 1.21 2017/02/18 16:37:18 tom Exp @
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-->
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
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<HTML>
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<HEAD>
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<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
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<meta name="generator" content="Manpage converted by man2html - see http://invisible-island.net/scripts/readme.html#others_scripts">
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<TITLE>curs_getstr 3x</TITLE>
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<link rev=made href="mailto:bug-ncurses@gnu.org">
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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</HEAD>
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<BODY>
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<H1 class="no-header">curs_getstr 3x</H1>
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<PRE>
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<STRONG><A HREF="curs_getstr.3x.html">curs_getstr(3x)</A></STRONG> <STRONG><A HREF="curs_getstr.3x.html">curs_getstr(3x)</A></STRONG>
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</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
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<STRONG>getstr</STRONG>, <STRONG>getnstr</STRONG>, <STRONG>wgetstr</STRONG>, <STRONG>wgetnstr</STRONG>, <STRONG>mvgetstr</STRONG>, <STRONG>mvgetnstr</STRONG>,
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<STRONG>mvwgetstr</STRONG>, <STRONG>mvwgetnstr</STRONG> - accept character strings from
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<STRONG>curses</STRONG> terminal keyboard
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</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
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<STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
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<STRONG>int</STRONG> <STRONG>getstr(char</STRONG> <STRONG>*str);</STRONG>
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<STRONG>int</STRONG> <STRONG>getnstr(char</STRONG> <STRONG>*str,</STRONG> <STRONG>int</STRONG> <STRONG>n);</STRONG>
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<STRONG>int</STRONG> <STRONG>wgetstr(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>char</STRONG> <STRONG>*str);</STRONG>
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<STRONG>int</STRONG> <STRONG>wgetnstr(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>char</STRONG> <STRONG>*str,</STRONG> <STRONG>int</STRONG> <STRONG>n);</STRONG>
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<STRONG>int</STRONG> <STRONG>mvgetstr(int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>char</STRONG> <STRONG>*str);</STRONG>
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<STRONG>int</STRONG> <STRONG>mvwgetstr(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>char</STRONG> <STRONG>*str);</STRONG>
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<STRONG>int</STRONG> <STRONG>mvgetnstr(int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>char</STRONG> <STRONG>*str,</STRONG> <STRONG>int</STRONG> <STRONG>n);</STRONG>
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<STRONG>int</STRONG> <STRONG>mvwgetnstr(WINDOW</STRONG> <STRONG>*,</STRONG> <STRONG>int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>char</STRONG> <STRONG>*str,</STRONG> <STRONG>int</STRONG> <STRONG>n);</STRONG>
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</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
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The function <STRONG>getstr</STRONG> is equivalent to a series of calls to
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<STRONG>getch</STRONG>, until a newline or carriage return is received (the
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terminating character is not included in the returned
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string). The resulting value is placed in the area point-
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ed to by the character pointer <EM>str</EM>.
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<STRONG>wgetnstr</STRONG> reads at most <EM>n</EM> characters, thus preventing a
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possible overflow of the input buffer. Any attempt to en-
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ter more characters (other than the terminating newline or
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carriage return) causes a beep. Function keys also cause
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a beep and are ignored. The <STRONG>getnstr</STRONG> function reads from
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the <EM>stdscr</EM> default window.
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The user's erase and kill characters are interpreted. If
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keypad mode is on for the window, <STRONG>KEY_LEFT</STRONG> and
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<STRONG>KEY_BACKSPACE</STRONG> are both considered equivalent to the user's
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kill character.
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Characters input are echoed only if <STRONG>echo</STRONG> is currently on.
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In that case, backspace is echoed as deletion of the pre-
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vious character (typically a left motion).
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</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
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All routines return the integer <STRONG>ERR</STRONG> upon failure and an <STRONG>OK</STRONG>
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(SVr4 specifies only "an integer value other than <STRONG>ERR</STRONG>")
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upon successful completion.
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X/Open defines no error conditions.
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In this implementation, these functions return an error if
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the window pointer is null, or if its timeout expires
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without having any data.
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This implementation provides an extension as well. If a
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SIGWINCH interrupts the function, it will return <STRONG>KEY_RE-</STRONG>
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<STRONG>SIZE</STRONG> rather than <STRONG>OK</STRONG> or <STRONG>ERR</STRONG>.
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Functions with a "mv" prefix first perform a cursor move-
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ment using <STRONG>wmove</STRONG>, and return an error if the position is
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outside the window, or if the window pointer is null.
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</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
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Note that <STRONG>getstr</STRONG>, <STRONG>mvgetstr</STRONG>, and <STRONG>mvwgetstr</STRONG> may be macros.
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</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
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These functions are described in the XSI Curses standard,
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Issue 4. They read single-byte characters only. The
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standard does not define any error conditions. This im-
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plementation returns ERR if the window pointer is null, or
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if the lower-level <STRONG><A HREF="curs_getch.3x.html">wgetch(3x)</A></STRONG> call returns an ERR.
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SVr3 and early SVr4 curses implementations did not reject
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function keys; the SVr4.0 documentation claimed that "spe-
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cial keys" (such as function keys, "home" key, "clear"
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key, <EM>etc</EM>.) are "interpreted", without giving details. It
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lied. In fact, the "character" value appended to the
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string by those implementations was predictable but not
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useful (being, in fact, the low-order eight bits of the
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key's KEY_ value).
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The functions <STRONG>getnstr</STRONG>, <STRONG>mvgetnstr</STRONG>, and <STRONG>mvwgetnstr</STRONG> were
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present but not documented in SVr4.
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</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
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<STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_getch.3x.html">curs_getch(3x)</A></STRONG>, <STRONG><A HREF="curs_variables.3x.html">curs_variables(3x)</A></STRONG>.
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<STRONG><A HREF="curs_getstr.3x.html">curs_getstr(3x)</A></STRONG>
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</PRE>
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<div class="nav">
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<ul>
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<li><a href="#h2-NAME">NAME</a></li>
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<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
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<li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
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<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
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<li><a href="#h2-NOTES">NOTES</a></li>
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<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
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<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
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</ul>
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</div>
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</BODY>
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</HTML>
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