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- * @Id: curs_terminfo.3x,v 1.35 2010/12/04 18:38:55 tom Exp @
+ * @Id: curs_terminfo.3x,v 1.36 2011/12/17 23:31:40 tom Exp @
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Routines that return pointers always return <STRONG>NULL</STRONG> on error.
- X/Open defines no error conditions. In this implementa-
+ X/Open defines no error conditions. In this implementa-
tion
<STRONG>del_curterm</STRONG>
- returns an error if its terminal parameter is
+ returns an error if its terminal parameter is
null.
<STRONG>putp</STRONG> calls <STRONG>tputs</STRONG>, returning the same error-codes.
<STRONG>tupterm</STRONG> returns an error.
<STRONG>setupterm</STRONG>
- returns an error if it cannot allocate enough
+ returns an error if it cannot allocate enough
memory, or create the initial windows (stdscr,
- curscr, newscr). Other error conditions are
+ curscr, newscr). Other error conditions are
documented above.
<STRONG>tputs</STRONG>
- returns an error if the string parameter is
- null. It does not detect I/O errors: X/Open
- states that <STRONG>tputs</STRONG> ignores the return value of
+ returns an error if the string parameter is
+ null. It does not detect I/O errors: X/Open
+ states that <STRONG>tputs</STRONG> ignores the return value of
the output function <EM>putc</EM>.
</PRE>
<H2>NOTES</H2><PRE>
- The <STRONG>setupterm</STRONG> routine should be used in place of <STRONG>setterm</STRONG>.
- It may be useful when you want to test for terminal capa-
- bilities without committing to the allocation of storage
+ The <STRONG>setupterm</STRONG> routine should be used in place of <STRONG>setterm</STRONG>.
+ It may be useful when you want to test for terminal capa-
+ bilities without committing to the allocation of storage
involved in <STRONG>initscr</STRONG>.
Note that <STRONG>vidattr</STRONG> and <STRONG>vidputs</STRONG> may be macros.
</PRE>
<H2>PORTABILITY</H2><PRE>
- The function <STRONG>setterm</STRONG> is not described by X/Open and must
- be considered non-portable. All other functions are as
+ The function <STRONG>setterm</STRONG> is not described by X/Open and must
+ be considered non-portable. All other functions are as
described by X/Open.
- <STRONG>setupterm</STRONG> copies the terminal name to the array <STRONG>ttytype</STRONG>.
- This is not part of X/Open Curses, but is assumed by some
+ <STRONG>setupterm</STRONG> copies the terminal name to the array <STRONG>ttytype</STRONG>.
+ This is not part of X/Open Curses, but is assumed by some
applications.
- In System V Release 4, <STRONG>set_curterm</STRONG> has an <STRONG>int</STRONG> return type
- and returns <STRONG>OK</STRONG> or <STRONG>ERR</STRONG>. We have chosen to implement the
+ In System V Release 4, <STRONG>set_curterm</STRONG> has an <STRONG>int</STRONG> return type
+ and returns <STRONG>OK</STRONG> or <STRONG>ERR</STRONG>. We have chosen to implement the
X/Open Curses semantics.
In System V Release 4, the third argument of <STRONG>tputs</STRONG> has the
type <STRONG>int</STRONG> <STRONG>(*putc)(char)</STRONG>.
At least one implementation of X/Open Curses (Solaris) re-
- turns a value other than OK/ERR from <STRONG>tputs</STRONG>. That returns
+ turns a value other than OK/ERR from <STRONG>tputs</STRONG>. That returns
the length of the string, and does no error-checking.
- X/Open Curses prototypes <STRONG>tparm</STRONG> with a fixed number of pa-
- rameters, rather than a variable argument list. This im-
- plementation uses a variable argument list, but can be
- configured to use the fixed-parameter list. Portable ap-
- plications should provide 9 parameters after the format;
+ X/Open Curses prototypes <STRONG>tparm</STRONG> with a fixed number of pa-
+ rameters, rather than a variable argument list. This im-
+ plementation uses a variable argument list, but can be
+ configured to use the fixed-parameter list. Portable ap-
+ plications should provide 9 parameters after the format;
zeroes are fine for this purpose.
In response to comments by Thomas E. Dickey, X/Open Curses
Issue 7 proposed the <STRONG>tiparam</STRONG> function in mid-2009.
- X/Open notes that after calling <STRONG>mvcur</STRONG>, the curses state
- may not match the actual terminal state, and that an ap-
- plication should touch and refresh the window before re-
+ X/Open notes that after calling <STRONG>mvcur</STRONG>, the curses state
+ may not match the actual terminal state, and that an ap-
+ plication should touch and refresh the window before re-
suming normal curses calls. Both ncurses and System V Re-
lease 4 curses implement <STRONG>mvcur</STRONG> using the SCREEN data allo-
cated in either <STRONG>initscr</STRONG> or <STRONG>newterm</STRONG>. So though it is docu-
- mented as a terminfo function, <STRONG>mvcur</STRONG> is really a curses
+ mented as a terminfo function, <STRONG>mvcur</STRONG> is really a curses
function which is not well specified.
- X/Open states that the old location must be given for
- <STRONG>mvcur</STRONG>. This implementation allows the caller to use -1's
- for the old ordinates. In that case, the old location is
+ X/Open states that the old location must be given for
+ <STRONG>mvcur</STRONG>. This implementation allows the caller to use -1's
+ for the old ordinates. In that case, the old location is
unknown.
- Extended terminal capability names, e.g., as defined by
- <STRONG>tic</STRONG> <STRONG>-x</STRONG>, are not stored in the arrays described in this
+ Extended terminal capability names, e.g., as defined by
+ <STRONG>tic</STRONG> <STRONG>-x</STRONG>, are not stored in the arrays described in this
section.
</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_kernel.3x.html">curs_kernel(3x)</A></STRONG>, <STRONG>curs_term-</STRONG>
- <STRONG><A HREF="curs_termcap.3x.html">cap(3x)</A></STRONG>,
<STRONG><A HREF="curs_variables.3x.html">curs_variables(3x)</A></STRONG>, <STRONG><A HREF="term_variables.3x.html">term_variables(3x)</A></STRONG>, <STRONG><A HREF="putc.3.html">putc(3)</A></STRONG>,
+ <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_kernel.3x.html">curs_kernel(3x)</A></STRONG>, <STRONG>curs_term-</STRONG>
+ <STRONG><A HREF="curs_termcap.3x.html">cap(3x)</A></STRONG>,
<STRONG><A HREF="curs_variables.3x.html">curs_variables(3x)</A></STRONG>, <STRONG><A HREF="term_variables.3x.html">term_variables(3x)</A></STRONG>, <STRONG><A HREF="putc.3.html">putc(3)</A></STRONG>,
<STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>
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