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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | PORTABILITY | SEE ALSO | COLOPHON |
curs_printw(3X) curs_printw(3X)
printw, wprintw, mvprintw, mvwprintw, vwprintw, vw_printw - print
formatted output in curses windows
#include <curses.h>
int printw(const char *fmt, ...);
int wprintw(WINDOW *win, const char *fmt, ...);
int mvprintw(int y, int x, const char *fmt, ...);
int mvwprintw(WINDOW *win, int y, int x, const char *fmt, ...);
int vwprintw(WINDOW *win, const char *fmt, va_list varglist);
int vw_printw(WINDOW *win, const char *fmt, va_list varglist);
The printw, wprintw, mvprintw and mvwprintw routines are analogous to
printf [see printf(3)]. In effect, the string that would be output
by printf is output instead as though waddstr were used on the given
window.
The vwprintw and wv_printw routines are analogous to vprintf [see
printf(3)] and perform a wprintw using a variable argument list. The
third argument is a va_list, a pointer to a list of arguments, as
defined in <stdarg.h>.
Routines that return an integer return ERR upon failure and OK (SVr4
only specifies "an integer value other than ERR") upon successful
completion.
X/Open defines no error conditions. In this implementation, an error
may be returned if it cannot allocate enough memory for the buffer
used to format the results. It will return an error if the window
pointer is null.
Functions with a "mv" prefix first perform a cursor movement using
wmove, and return an error if the position is outside the window, or
if the window pointer is null.
The XSI Curses standard, Issue 4 describes these functions. The
function vwprintw is marked TO BE WITHDRAWN, and is to be replaced by
a function vw_printw using the <stdarg.h> interface. The Single Unix
Specification, Version 2 states that vw_printw is preferred to
vwprintw since the latter requires including <varargs.h>, which
cannot be used in the same file as <stdarg.h>. This implementation
uses <stdarg.h> for both, because that header is included in
<curses.h>.
curses(3X), printf(3), vprintf(3).
This page is part of the ncurses (new curses) project. Information
about the project can be found at
⟨https://www.gnu.org/software/ncurses/ncurses.html⟩. If you have a
bug report for this manual page, send it to
bug-ncurses-request@gnu.org. This page was obtained from the
project's upstream Git mirror of the CVS repository
⟨git://ncurses.scripts.mit.edu/ncurses.git⟩ on 2017-07-05. If you
discover any rendering problems in this HTML version of the page, or
you believe there is a better or more up-to-date source for the page,
or you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a mail
to man-pages@man7.org
curs_printw(3X)