1curs_printw(3X) curs_printw(3X)
2
6 printw, wprintw, mvprintw, mvwprintw, vwprintw, vw_printw - print
7 formatted output in curses windows
8
10 #include <curses.h>
11 int printw(const char *fmt, ...);
13 int wprintw(WINDOW *win, const char *fmt, ...);
14 int mvprintw(int y, int x, const char *fmt, ...);
15 int mvwprintw(WINDOW *win, int y, int x, const char *fmt, ...);
16 int vwprintw(WINDOW *win, const char *fmt, va_list varglist);
17 int vw_printw(WINDOW *win, const char *fmt, va_list varglist);
18
20 The printw, wprintw, mvprintw and mvwprintw routines are analogous to
21 printf [see printf(3)]. In effect, the string that would be output by
22 printf is output instead as though waddstr were used on the given win‐
23 dow.
24 The vwprintw and wv_printw routines are analogous to vprintf [see
26 printf(3)] and perform a wprintw using a variable argument list. The
27 third argument is a va_list, a pointer to a list of arguments, as de‐
28 fined in <stdarg.h>.
29
31 Routines that return an integer return ERR upon failure and OK (SVr4
32 only specifies "an integer value other than ERR") upon successful com‐
33 pletion.
34 X/Open defines no error conditions. In this implementation, an error
36 may be returned if it cannot allocate enough memory for the buffer used
37 to format the results. It will return an error if the window pointer
38 is null.
39 Functions with a "mv" prefix first perform a cursor movement using
41 wmove, and return an error if the position is outside the window, or if
42 the window pointer is null.
43
45 The XSI Curses standard, Issue 4 describes these functions. The func‐
46 tion vwprintw is marked TO BE WITHDRAWN, and is to be replaced by a
47 function vw_printw using the <stdarg.h> interface. The Single Unix
48 Specification, Version 2 states that vw_printw is preferred to vw‐
49 printw since the latter requires including <varargs.h>, which cannot be
50 used in the same file as <stdarg.h>. This implementation uses
51 <stdarg.h> for both, because that header is included in <curses.h>.
52
54 curses(3X), printf(3), vprintf(3)
55 curs_printw(3X)