curses_attributes(3) - NetBSD Manual Pages

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CURSES_ATTRIBUTES(3)    NetBSD Library Functions Manual   CURSES_ATTRIBUTES(3)


NAME

     curses_attributes, attron, attroff, attrset, wattron, wattroff, wattrset,
     getattrs, attr_on, attr_off, attr_set, color_set, attr_get, wattr_on,
     wattr_off, wattr_set, wcolor_set, wattr_get -- curses general attribute
     manipulation routines


LIBRARY

     Curses Library (libcurses, -lcurses)


SYNOPSIS

     #include <curses.h>

     int
     attron(int attr);

     int
     attroff(int attr);

     int
     attrset(int attr);

     int
     wattron(WINDOW * win, int attr);

     int
     wattroff(WINDOW * win, int attr);

     int
     wattrset(WINDOW * win, int attr);

     chtype
     getattrs(WINDOW *win);

     int
     attr_on(attr_t attr, void *opt);

     int
     attr_off(attr_t attr, void *opt);

     int
     attr_set(attr_t attr, short pair, void *opt);

     int
     color_set(short pair, void *opt);

     int
     attr_get(attr_t *attr, short *pair, void *opt);

     int
     wattr_on(WINDOW *win, attr_t attr, void *opt);

     int
     wattr_off(WINDOW *win, attr_t attr, void *opt);

     int
     wattr_set(WINDOW *win, attr_t attr, short pair, void *opt);

     int
     wcolor_set(WINDOW *win, short pair, void *opt);

     int
     wattr_get(WINDOW *win, attr_t *attr, short *pair, void *opt);


DESCRIPTION

     These functions manipulate attributes on stdscr or on the specified win-
     dow.  The attributes that can be manipulated are:

           A_NORMAL       no special attributes are applied
           A_STANDOUT     characters are displayed in standout mode
           A_UNDERLINE    characters are displayed underlined
           A_REVERSE      characters are displayed in inverse video
           A_BLINK        characters blink
           A_DIM          characters are displayed at a lower intensity
           A_BOLD         characters are displayed at a higher intensity
           A_BLANK        characters are added as blanks
           A_PROTECT      characters are protected from modification
           A_ALTCHARSET   characters are displayed using the alternate charac-
                          ter set (ACS)
           COLOR_PAIR(n)  characters are displayed using color pair n.

     The functions attron() and attr_on() turn on the attributes specified in
     attr on stdscr.

     The functions attroff() and attr_off() turn off the attributes specified
     in attr on stdscr.

     The function attrset() sets the attributes of stdscr to those specified
     in attr, turning off any others.  To turn off all the attributes (includ-
     ing color and alternate character set), use attrset(A_NORMAL).

     Multiple attributes can be manipulated by combining the attributes using
     a logical OR.  For example, attron(A_REVERSE | A_BOLD) will turn on both
     inverse video and higher intensity.

     The function attr_set() sets the attributes of stdscr to those specified
     in attr and pair, turning off any others.  Note that a color pair speci-
     fied in pair will override any color pair specified in attr.

     The function color_set() sets the color pair attribute to the pair speci-
     fied in pair.

     The functions wattron(), wattr_on(), wattroff(), wattr_on(), wattrset(),
     wattr_set() and wcolor_set() are equivalent to attron(), attr_on(),
     attroff() attr_off(), attrset(), attr_set() and color_set() respectively,
     excepting that the character is added to the window specified by win.

     The function getattrs() returns the attributes that are currently applied
     to window specified by win.

     The function attr_get() sets attr to the attributes and pair to the color
     pair currently applied to stdscr.  Either of attr and pair can be NULL,
     if the relevant value is of no interest.

     The function wattr_get() is equivalent to attr_get(), excepting that the
     attributes and color pair currently applied to win are set.


RETURN VALUES

     These functions return OK on success and ERR on failure.


SEE ALSO

     curses_addch(3), curses_addchstr(3), curses_addstr(3),
     curses_background(3), curses_color(3), curses_insertch(3),
     curses_standout(3), curses_underscore(3)


NOTES

     The opt argument is not currently used but is reserved for a future ver-
     sion of the specification.


STANDARDS

     The NetBSD Curses library complies with the X/Open Curses specification,
     part of the Single Unix Specification.


HISTORY

     These functions first appeared in NetBSD 1.5.


BUGS

     Some terminals do not support characters with both color and other
     attributes set.  In this case, the other attribute is displayed instead
     of the color attribute.

NetBSD 4.0                       May 21, 2003                       NetBSD 4.0