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- <TITLE>curs_getstr 3x</TITLE>
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- <H1>curs_getstr 3x</H1>
- <HR>
- <PRE>
- <!-- Manpage converted by man2html 3.0.1 -->
- <STRONG><A HREF="curs_getstr.3x.html">curs_getstr(3x)</A></STRONG> <STRONG><A HREF="curs_getstr.3x.html">curs_getstr(3x)</A></STRONG>
- </PRE>
- <H2>NAME</H2><PRE>
- <STRONG>getstr</STRONG>, <STRONG>getnstr</STRONG>, <STRONG>wgetstr</STRONG>, <STRONG>wgetnstr</STRONG>, <STRONG>mvgetstr</STRONG>, <STRONG>mvgetnstr</STRONG>,
- <STRONG>mvwgetstr</STRONG>, <STRONG>mvwgetnstr</STRONG> - accept character strings from
- <STRONG>curses</STRONG> terminal keyboard
- </PRE>
- <H2>SYNOPSIS</H2><PRE>
- <STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
- <STRONG>int</STRONG> <STRONG>getstr(char</STRONG> <STRONG>*str);</STRONG>
- <STRONG>int</STRONG> <STRONG>getnstr(char</STRONG> <STRONG>*str,</STRONG> <STRONG>int</STRONG> <STRONG>n);</STRONG>
- <STRONG>int</STRONG> <STRONG>wgetstr(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>char</STRONG> <STRONG>*str);</STRONG>
- <STRONG>int</STRONG> <STRONG>wgetnstr(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>char</STRONG> <STRONG>*str,</STRONG> <STRONG>int</STRONG> <STRONG>n);</STRONG>
- <STRONG>int</STRONG> <STRONG>mvgetstr(int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>char</STRONG> <STRONG>*str);</STRONG>
- <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>
- <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>
- <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>
- </PRE>
- <H2>DESCRIPTION</H2><PRE>
- The function <STRONG>getstr</STRONG> is equivalent to a series of calls to
- <STRONG>getch</STRONG>, until a newline or carriage return is received (the
- terminating character is not included in the returned
- string). The resulting value is placed in the area point-
- ed to by the character pointer <EM>str</EM>.
- <STRONG>wgetnstr</STRONG> reads at most <EM>n</EM> characters, thus preventing a
- possible overflow of the input buffer. Any attempt to en-
- ter more characters (other than the terminating newline or
- carriage return) causes a beep. Function keys also cause
- a beep and are ignored. The <STRONG>getnstr</STRONG> function reads from
- the <EM>stdscr</EM> default window.
- The user's erase and kill characters are interpreted. If
- keypad mode is on for the window, <STRONG>KEY_LEFT</STRONG> and
- <STRONG>KEY_BACKSPACE</STRONG> are both considered equivalent to the user's
- kill character.
- Characters input are echoed only if <STRONG>echo</STRONG> is currently on.
- In that case, backspace is echoed as deletion of the pre-
- vious character (typically a left motion).
- </PRE>
- <H2>RETURN VALUE</H2><PRE>
- All routines return the integer <STRONG>ERR</STRONG> upon failure and an <STRONG>OK</STRONG>
- (SVr4 specifies only "an integer value other than <STRONG>ERR</STRONG>")
- upon successful completion.
- X/Open defines no error conditions.
- In this implementation, these functions return an error if
- the window pointer is null, or if its timeout expires
- without having any data.
- This implementation provides an extension as well. If a
- SIGWINCH interrupts the function, it will return <STRONG>KEY_RE-</STRONG>
- <STRONG>SIZE</STRONG> rather than <STRONG>OK</STRONG> or <STRONG>ERR</STRONG>.
- </PRE>
- <H2>NOTES</H2><PRE>
- Note that <STRONG>getstr</STRONG>, <STRONG>mvgetstr</STRONG>, and <STRONG>mvwgetstr</STRONG> may be macros.
- </PRE>
- <H2>PORTABILITY</H2><PRE>
- These functions are described in the XSI Curses standard,
- Issue 4. They read single-byte characters only. The
- standard does not define any error conditions. This im-
- plementation returns ERR if the window pointer is null, or
- if the lower-level <STRONG>wgetch</STRONG> call returns an ERR.
- SVr3 and early SVr4 curses implementations did not reject
- function keys; the SVr4.0 documentation claimed that "spe-
- cial keys" (such as function keys, "home" key, "clear"
- key, <EM>etc</EM>.) are "interpreted", without giving details. It
- lied. In fact, the `character' value appended to the
- string by those implementations was predictable but not
- useful (being, in fact, the low-order eight bits of the
- key's KEY_ value).
- The functions <STRONG>getnstr</STRONG>, <STRONG>mvgetnstr</STRONG>, and <STRONG>mvwgetnstr</STRONG> were
- present but not documented in SVr4.
- </PRE>
- <H2>SEE ALSO</H2><PRE>
- <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_getstr.3x.html">curs_getstr(3x)</A></STRONG>
- </PRE>
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