ncurses-5.7/ncurses/base/lib_wattron.c

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/****************************************************************************
 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
 *     and: Thomas E. Dickey                        1996-on                 *
 ****************************************************************************/

/*
**	lib_wattron.c
**
**	The routines wattr_on().
**
*/

#include <curses.priv.h>
#include <ctype.h>

MODULE_ID("$Id: lib_wattron.c,v 1.9 2006/05/27 19:30:46 tom Exp $")

NCURSES_EXPORT(int)
wattr_on(WINDOW *win, attr_t at, void *opts GCC_UNUSED)
{
    T((T_CALLED("wattr_on(%p,%s)"), win, _traceattr(at)));
    if (win != 0) {
	T(("... current %s (%d)",
	   _traceattr(WINDOW_ATTRS(win)),
	   GET_WINDOW_PAIR(win)));

	if_EXT_COLORS({
	    if (at & A_COLOR)
		win->_color = PAIR_NUMBER(at);
	});
	toggle_attr_on(WINDOW_ATTRS(win), at);
	returnCode(OK);
    } else
	returnCode(ERR);
}