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+<HEAD>
+<TITLE>form_field_buffer 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>form_field_buffer 3x</H1>
+<HR>
<PRE>
<!-- Manpage converted by man2html 3.0.1 -->
+<STRONG><A HREF="form_field_buffer.3x.html">form_field_buffer(3x)</A></STRONG> <STRONG><A HREF="form_field_buffer.3x.html">form_field_buffer(3x)</A></STRONG>
+
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+
</PRE>
<H2>NAME</H2><PRE>
- <B>form_field_buffer</B> - field buffer control
+ <STRONG>form_field_buffer</STRONG> - field buffer control
</PRE>
<H2>SYNOPSIS</H2><PRE>
- <B>#include</B> <B><form.h></B>
+ <STRONG>#include</STRONG> <STRONG><form.h></STRONG>
int set_field_buffer(FIELD *field, int buf, const char
*value);
char *field_buffer(const FIELD *field, int buffer);
</PRE>
<H2>DESCRIPTION</H2><PRE>
- The function <B>set_field_buffer</B> sets the numbered buffer of
+ The function <STRONG>set_field_buffer</STRONG> sets the numbered buffer of
the given field to contain a given string. Buffer 0 is
the displayed value of the field; other numbered buffers
- may be allocated by applications through the <B>nbuf</B> argument
- of (see <B><A HREF="form_field_new.3x.html">form_field_new(3x)</A></B>) but are not manipulated by the
- forms library. The function <B>field_buffer</B> returns the
+ may be allocated by applications through the <STRONG>nbuf</STRONG> argument
+ of (see <STRONG><A HREF="form_field_new.3x.html">form_field_new(3x)</A></STRONG>) but are not manipulated by the
+ forms library. The function <STRONG>field_buffer</STRONG> returns the
address of the buffer. Please note that this buffer has
always the length of the buffer, that means that it may
typically contain trailing spaces. If you entered leading
value out of the buffer and removes the leading and trail-
ing spaces. Please note also, that subsequent operations
on the form will probably change the content of the
- buffer. So don't use it for long term storage of the
+ buffer. So do not use it for long term storage of the
entered form data.
- The function <B>set_field_status</B> sets the associated status
- flag of <I>field</I>; <B>field_status</B> gets the current value. The
+ The function <STRONG>set_field_status</STRONG> sets the associated status
+ flag of <EM>field</EM>; <STRONG>field_status</STRONG> gets the current value. The
status flag is set to a nonzero value whenever the field
changes.
- The function <B>set_max_field</B> sets the maximum size for a
+ The function <STRONG>set_max_field</STRONG> sets the maximum size for a
dynamic field. An argument of 0 turns off any maximum
size threshold for that field.
</PRE>
<H2>RETURN VALUE</H2><PRE>
- The <B>field_buffer</B> function returns NULL on error.
+ The <STRONG>field_buffer</STRONG> function returns NULL on error.
- The <B>field_status</B> function returns <B>TRUE</B> or <B>FALSE</B>.
+ The <STRONG>field_status</STRONG> function returns <STRONG>TRUE</STRONG> or <STRONG>FALSE</STRONG>.
The remaining routines return one of the following:
- <B>E_OK</B> The routine succeeded.
+ <STRONG>E_OK</STRONG> The routine succeeded.
- <B>E_SYSTEM_ERROR</B>
- System error occurred (see <B>errno</B>).
+ <STRONG>E_SYSTEM_ERROR</STRONG>
+ System error occurred (see <STRONG>errno</STRONG>).
- <B>E_BAD_ARGUMENT</B>
+ <STRONG>E_BAD_ARGUMENT</STRONG>
Routine detected an incorrect or out-of-range argu-
ment.
</PRE>
<H2>SEE ALSO</H2><PRE>
- <B><A HREF="ncurses.3x.html">curses(3x)</A></B> and 3x pages whose names begin "form_" for
+ <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG> and related pages whose names begin "form_" for
detailed descriptions of the entry points.
</PRE>
<H2>NOTES</H2><PRE>
- The header file <B><form.h></B> automatically includes the header
- file <B><curses.h></B>.
+ The header file <STRONG><form.h></STRONG> automatically includes the header
+ file
+
+ When configured for wide-characters, <STRONG>field_buffer</STRONG> returns
+ a pointer to temporary storage (allocated and freed by the
+ library). The application should not attempt to modify
+ the data. It will be freed on the next call to
+ <STRONG>field_buffer</STRONG> to return the same buffer. <STRONG><curses.h></STRONG>.
</PRE>
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<ADDRESS>
projects / ncurses.git / blobdiff