NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | PORTABILITY | SEE ALSO | COLOPHON

curs_printw(3X)                                              curs_printw(3X)

NAME         top

       printw, wprintw, mvprintw, mvwprintw, vwprintw, vw_printw - print
       formatted output in curses windows

SYNOPSIS         top

       #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);

DESCRIPTION         top

       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>.

RETURN VALUE         top

       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.

PORTABILITY         top

       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       function vwprintw is marked TO BE WITHDRAWN, and is to be replaced by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>.

SEE ALSO         top

       curses(3X), printf(3), vprintf(3).

COLOPHON         top

       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 2017-04-25.  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)