+ X/Open Curses, Issue 4 describes these functions. It specifies no
+ error conditions for them.
+
+ <EM>ncurses</EM> defines <STRONG>vw_printw</STRONG> and <STRONG>vwprintw</STRONG> identically to support legacy
+ applications. However, the latter is obsolete.
+
+ <STRONG>o</STRONG> X/Open Curses, Issue 4 Version 2 (1996), marked <STRONG>vwprintw</STRONG> as
+ requiring <EM>varargs.h</EM> and "TO BE WITHDRAWN", and specified <STRONG>vw_printw</STRONG>
+ using the <EM>stdarg.h</EM> interface.
+
+ <STRONG>o</STRONG> X/Open Curses, Issue 5, Draft 2 (December 2007) marked <STRONG>vwprintw</STRONG>
+ (along with <STRONG>vwscanw</STRONG> and the <EM>termcap</EM> interface) as withdrawn. After
+ incorporating review comments, this became X/Open Curses, Issue 7
+ (2009).
+
+ <STRONG>o</STRONG> <EM>ncurses</EM> provides <STRONG>vwprintw</STRONG>, but marks it as deprecated.
+
+
+</PRE><H2><a name="h2-HISTORY">HISTORY</a></H2><PRE>
+ While <STRONG>printw</STRONG> was implemented in 4BSD (November 1980), it was unused
+ until 4.2BSD (August 1983), which employed it for games. That early
+ version of <EM>curses</EM> preceded the ANSI C standard of 1989. It did not use
+ <EM>varargs.h</EM>, though that had been available since Seventh Edition Unix
+ (1979). In 1991 (a couple of years after SVr4 was generally available,
+ and after the C standard was published), other developers updated the
+ library, using <EM>stdarg.h</EM> internally in 4.4BSD <EM>curses</EM>. Even with this
+ improvement, BSD <EM>curses</EM> did not use function prototypes (nor even
+ declare functions) in <EM>curses.h</EM> until 1992.
+
+ SVr2 (1984) documented <STRONG>printw</STRONG> and <STRONG>wprintw</STRONG> tersely as "printf on <STRONG>stdscr</STRONG>"
+ and "printf on <EM>win</EM>", respectively.