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| Curses Library Functions | curs_attr(3CURSES) |
| | curs_attr, attroff, wattroff, attron, wattron, attrset, wattrset, standend, wstandend, standout, wstandout - curses character and window attribute control routines |
SYNOPSIS
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cc [ flag ... ] file ... -lcurses [ library ... ]
#include <curses.h> int attroff(int attrs); |
| | int wattroff(WINDOW *win, int attrs); |
| | int wattron(WINDOW *win, int attrs); |
| | int wattrset(WINDOW *win, int attrs); |
| | int wstandend(WINDOW *win); |
| | int wstandout(WINDOW *win); |
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All of these routines manipulate the current attributes of the named window. The current attributes of a window are applied to all characters that are written into the window with waddch(), waddstr(), and wprintw(). Attributes are a property of the character, and move with the character through any scrolling and insert/delete line/character
operations. To the extent possible on the particular terminal, they are displayed as the graphic rendition of characters put on the screen.
The routine attrset() sets the current attributes of the given window to attrs. The routine attroff() turns off the named attributes without
turning any other attributes on or off. The routine attron() turns on the named attributes without affecting any others. The routine standout() is the same as attron(A_STANDOUT). The routine standend() is the same as attrset(), that is, it turns off all attributes.
Attributes
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The following video attributes, defined in <curses.h>, can be passed to the routines attron(), attroff(), and attrset(),
or OR-ed with the characters passed to addch().
- A_STANDOUT
- Best highlighting mode of the terminal
- A_UNDERLINE
- Underlining
- A_REVERSE
- Reverse video
- A_BLINK
- Blinking
- A_DIM
- Half bright
- A_BOLD
- Extra bright or bold
- A_ALTCHARSET
- Alternate character set
- A_CHARTEXT
- Bit-mask to extract a character
- COLOR_PAIR(n)
- Color-pair number n
The following macro is the reverse of COLOR_PAIR(n):
- PAIR_NUMBER(attrs)
- Returns the pair number associated with the COLOR_PAIR(n) attribute
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These routines always return 1.
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See attributes(5) for descriptions of the following
attributes:
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| MT-Level | Unsafe |
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The header <curses.h> automatically includes the headers <stdio.h> and <unctrl.h>.
Note that attroff(), wattroff(), attron(), wattron(), wattrset(), standend(), and standout() may be macros.
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