ncurses 5.4
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35 <TITLE>curs_attr 3x</TITLE>
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40 <H1>curs_attr 3x</H1>
41 <HR>
42 <PRE>
43 <!-- Manpage converted by man2html 3.0.1 -->
44 <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>                                       <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
45
46
47
48
49 </PRE>
50 <H2>NAME</H2><PRE>
51        <STRONG>attroff</STRONG>,  <STRONG>wattroff</STRONG>,  <STRONG>attron</STRONG>,  <STRONG>wattron</STRONG>,  <STRONG>attrset</STRONG>, <STRONG>wattrset</STRONG>,
52        <STRONG>color_set</STRONG>,  <STRONG>wcolor_set</STRONG>,  <STRONG>standend</STRONG>,  <STRONG>wstandend</STRONG>,   <STRONG>standout</STRONG>,
53        <STRONG>wstandout</STRONG>,   <STRONG>attr_get</STRONG>,   <STRONG>wattr_get</STRONG>,  <STRONG>attr_off</STRONG>,  <STRONG>wattr_off</STRONG>,
54        <STRONG>attr_on</STRONG>, <STRONG>wattr_on</STRONG>,  <STRONG>attr_set</STRONG>,  <STRONG>wattr_set</STRONG>,  <STRONG>chgat</STRONG>,  <STRONG>wchgat</STRONG>,
55        <STRONG>mvchgat</STRONG>, <STRONG>mvwchgat</STRONG>, <STRONG>PAIR_NUMBER</STRONG> - <STRONG>curses</STRONG> character and win-
56        dow attribute control routines
57
58
59 </PRE>
60 <H2>SYNOPSIS</H2><PRE>
61        <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
62        <STRONG>int</STRONG> <STRONG>attroff(int</STRONG> <STRONG>attrs);</STRONG>
63        <STRONG>int</STRONG> <STRONG>wattroff(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>int</STRONG> <STRONG>attrs);</STRONG>
64        <STRONG>int</STRONG> <STRONG>attron(int</STRONG> <STRONG>attrs);</STRONG>
65        <STRONG>int</STRONG> <STRONG>wattron(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>int</STRONG> <STRONG>attrs);</STRONG>
66        <STRONG>int</STRONG> <STRONG>attrset(int</STRONG> <STRONG>attrs);</STRONG>
67        <STRONG>int</STRONG> <STRONG>wattrset(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>int</STRONG> <STRONG>attrs);</STRONG>
68        <STRONG>int</STRONG> <STRONG>color_set(short</STRONG> <STRONG>color_pair_number,</STRONG> <STRONG>void*</STRONG> <STRONG>opts);</STRONG>
69        <STRONG>int</STRONG> <STRONG>wcolor_set(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>short</STRONG> <STRONG>color_pair_number,</STRONG>
70              <STRONG>void*</STRONG> <STRONG>opts);</STRONG>
71        <STRONG>int</STRONG> <STRONG>standend(void);</STRONG>
72        <STRONG>int</STRONG> <STRONG>wstandend(WINDOW</STRONG> <STRONG>*win);</STRONG>
73        <STRONG>int</STRONG> <STRONG>standout(void);</STRONG>
74        <STRONG>int</STRONG> <STRONG>wstandout(WINDOW</STRONG> <STRONG>*win);</STRONG>
75        <STRONG>int</STRONG> <STRONG>attr_get(attr_t</STRONG> <STRONG>*attrs,</STRONG> <STRONG>short</STRONG> <STRONG>*pair,</STRONG> <STRONG>void</STRONG> <STRONG>*opts);</STRONG>
76        <STRONG>int</STRONG> <STRONG>wattr_get(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>attr_t</STRONG> <STRONG>*attrs,</STRONG> <STRONG>short</STRONG> <STRONG>*pair,</STRONG>
77               <STRONG>void</STRONG> <STRONG>*opts);</STRONG>
78        <STRONG>int</STRONG> <STRONG>attr_off(attr_t</STRONG> <STRONG>attrs,</STRONG> <STRONG>void</STRONG> <STRONG>*opts);</STRONG>
79        <STRONG>int</STRONG> <STRONG>wattr_off(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>attr_t</STRONG> <STRONG>attrs,</STRONG> <STRONG>void</STRONG> <STRONG>*opts);</STRONG>
80        <STRONG>int</STRONG> <STRONG>attr_on(attr_t</STRONG> <STRONG>attrs,</STRONG> <STRONG>void</STRONG> <STRONG>*opts);</STRONG>
81        <STRONG>int</STRONG> <STRONG>wattr_on(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>attr_t</STRONG> <STRONG>attrs,</STRONG> <STRONG>void</STRONG> <STRONG>*opts);</STRONG>
82        <STRONG>int</STRONG> <STRONG>attr_set(attr_t</STRONG> <STRONG>attrs,</STRONG> <STRONG>short</STRONG> <STRONG>pair,</STRONG> <STRONG>void</STRONG> <STRONG>*opts);</STRONG>
83        <STRONG>int</STRONG> <STRONG>wattr_set(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>attr_t</STRONG> <STRONG>attrs,</STRONG> <STRONG>short</STRONG> <STRONG>pair,</STRONG>  <STRONG>void</STRONG>
84        <STRONG>*opts);</STRONG>
85        <STRONG>int</STRONG> <STRONG>chgat(int</STRONG> <STRONG>n,</STRONG> <STRONG>attr_t</STRONG> <STRONG>attr,</STRONG> <STRONG>short</STRONG> <STRONG>color,</STRONG>
86              <STRONG>const</STRONG> <STRONG>void</STRONG> <STRONG>*opts)</STRONG>
87        <STRONG>int</STRONG> <STRONG>wchgat(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>int</STRONG> <STRONG>n,</STRONG> <STRONG>attr_t</STRONG> <STRONG>attr,</STRONG>
88              <STRONG>short</STRONG> <STRONG>color,</STRONG> <STRONG>const</STRONG> <STRONG>void</STRONG> <STRONG>*opts)</STRONG>
89        <STRONG>int</STRONG> <STRONG>mvchgat(int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>int</STRONG> <STRONG>n,</STRONG> <STRONG>attr_t</STRONG> <STRONG>attr,</STRONG>
90              <STRONG>short</STRONG> <STRONG>color,</STRONG> <STRONG>const</STRONG> <STRONG>void</STRONG> <STRONG>*opts)</STRONG>
91        <STRONG>int</STRONG> <STRONG>mvwchgat(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>int</STRONG> <STRONG>n,</STRONG>
92              <STRONG>attr_t</STRONG> <STRONG>attr,</STRONG> <STRONG>short</STRONG> <STRONG>color,</STRONG> <STRONG>const</STRONG> <STRONG>void</STRONG> <STRONG>*opts)</STRONG>
93
94
95 </PRE>
96 <H2>DESCRIPTION</H2><PRE>
97        These  routines  manipulate  the current attributes of the
98        named window.  The current attributes of a window apply to
99        all  characters that are written into the window with <STRONG>wad-</STRONG>
100        <STRONG>dch</STRONG>, <STRONG>waddstr</STRONG> and <STRONG>wprintw</STRONG>.  Attributes are  a  property  of
101        the  character,  and  move  with the character through any
102        scrolling and insert/delete line/character operations.  To
103        the  extent  possible,  they  are displayed as appropriate
104        modifications to the graphic rendition of  characters  put
105        on the screen.
106
107        The  routine  <STRONG>attrset</STRONG>  sets  the current attributes of the
108        given window to <EM>attrs</EM>.  The routine <STRONG>attroff</STRONG> turns off  the
109        named  attributes  without turning any other attributes on
110        or off.  The routine <STRONG>attron</STRONG> turns on the named  attributes
111        without affecting any others.  The routine <STRONG>standout</STRONG> is the
112        same as <STRONG>attron(A_STANDOUT)</STRONG>.  The routine <STRONG>standend</STRONG>  is  the
113        same as <STRONG>attrset(A_NORMAL)</STRONG> or <STRONG>attrset(0)</STRONG>, that is, it turns
114        off all attributes.
115
116        The  <STRONG>attrset</STRONG>  and  related  routines  do  not  affect  the
117        attributes  used when erasing portions of the window.  See
118        <STRONG><A HREF="curs_bkgd.3x.html">curs_bkgd(3x)</A></STRONG> for functions which  modify  the  attributes
119        used for erasing and clearing.
120
121        The  routine <STRONG>color_set</STRONG> sets the current color of the given
122        window to the foreground/background combination  described
123        by  the  color_pair_number. The parameter opts is reserved
124        for future use, applications must supply a null pointer.
125
126        The routine <STRONG>wattr_get</STRONG> returns the  current  attribute  and
127        color pair for the given window; <STRONG>attr_get</STRONG> returns the cur-
128        rent attribute and color pair for <STRONG>stdscr</STRONG>.   The  remaining
129        <STRONG>attr_</STRONG>*  functions  operate  exactly like the corresponding
130        <STRONG>attr</STRONG>* functions, except that they take arguments  of  type
131        <STRONG>attr_t</STRONG> rather than <STRONG>int</STRONG>.
132
133        The routine <STRONG>chgat</STRONG> changes the attributes of a given number
134        of characters starting at the current cursor  location  of
135        <STRONG>stdscr</STRONG>.   It  does not update the cursor and does not per-
136        form wrapping.  A character count of -1  or  greater  than
137        the  remaining window width means to change attributes all
138        the way to the end of the current line.  The <STRONG>wchgat</STRONG>  func-
139        tion generalizes this to any window; the <STRONG>mvwchgat</STRONG> function
140        does a cursor move before acting.  In these functions, the
141        color  argument  is  a  color-pair  index (as in the first
142        argument of  <EM>init</EM><STRONG>_</STRONG><EM>pair</EM>,  see  <STRONG><A HREF="curs_color.3x.html">curs_color(3x)</A></STRONG>).   The  <STRONG>opts</STRONG>
143        argument  is  not  presently used, but is reserved for the
144        future (leave it <STRONG>NULL</STRONG>).  Note that changing the attributes
145        does  not  imply that a subsequent <STRONG>refresh</STRONG> will update the
146        screen to match, since the character values are not  modi-
147        fied.   Use  <STRONG>touchwin</STRONG>  to  force  the  screen to match the
148        updated attributes.
149
150    <STRONG>Attributes</STRONG>
151        The following video attributes, defined in <STRONG>&lt;curses.h&gt;</STRONG>, can
152        be passed to the routines <STRONG>attron</STRONG>, <STRONG>attroff</STRONG>, and <STRONG>attrset</STRONG>, or
153        OR'ed with the characters passed to <STRONG>addch</STRONG>.
154
155         <STRONG>A_NORMAL</STRONG>        Normal display (no highlight)
156         <STRONG>A_STANDOUT</STRONG>      Best highlighting mode of the terminal.
157         <STRONG>A_UNDERLINE</STRONG>     Underlining
158         <STRONG>A_REVERSE</STRONG>       Reverse video
159         <STRONG>A_BLINK</STRONG>         Blinking
160         <STRONG>A_DIM</STRONG>           Half bright
161         <STRONG>A_BOLD</STRONG>          Extra bright or bold
162         <STRONG>A_PROTECT</STRONG>       Protected mode
163         <STRONG>A_INVIS</STRONG>         Invisible or blank mode
164         <STRONG>A_ALTCHARSET</STRONG>    Alternate character set
165         <STRONG>A_CHARTEXT</STRONG>      Bit-mask to extract a character
166         <STRONG>COLOR_PAIR(</STRONG><EM>n</EM><STRONG>)</STRONG>   Color-pair number <EM>n</EM>
167
168        The following macro is the reverse of <STRONG>COLOR_PAIR(</STRONG><EM>n</EM><STRONG>)</STRONG>:
169
170        <STRONG>PAIR_NUMBER(</STRONG><EM>attrs</EM>) Returns the pair number associated
171                           with the <STRONG>COLOR_PAIR(</STRONG><EM>n</EM><STRONG>)</STRONG> attribute.
172
173        The return values of many of these routines are not  mean-
174        ingful (they are implemented as macro-expanded assignments
175        and simply return their argument).  The SVr4  manual  page
176        claims (falsely) that these routines always return <STRONG>1</STRONG>.
177
178
179 </PRE>
180 <H2>NOTES</H2><PRE>
181        Note  that  <STRONG>attroff</STRONG>,  <STRONG>wattroff</STRONG>,  <STRONG>attron</STRONG>, <STRONG>wattron</STRONG>, <STRONG>attrset</STRONG>,
182        <STRONG>wattrset</STRONG>, <STRONG>standend</STRONG> and <STRONG>standout</STRONG> may be macros.
183
184
185 </PRE>
186 <H2>PORTABILITY</H2><PRE>
187        All these functions are supported in the XSI Curses  stan-
188        dard,  Issue  4.   The standard defined the dedicated type
189        for highlights, <STRONG>attr_t</STRONG>,  which  is  not  defined  in  SVr4
190        curses. The functions taking <STRONG>attr_t</STRONG> arguments are not sup-
191        ported under SVr4.
192
193        The XSI Curses standard states  that  whether  the  tradi-
194        tional  functions  <STRONG>attron</STRONG>/<STRONG>attroff</STRONG>/<STRONG>attrset</STRONG>  can  manipulate
195        attributes other than <STRONG>A_BLINK</STRONG>, <STRONG>A_BOLD</STRONG>,  <STRONG>A_DIM</STRONG>,  <STRONG>A_REVERSE</STRONG>,
196        <STRONG>A_STANDOUT</STRONG>,  or  <STRONG>A_UNDERLINE</STRONG> is "unspecified".  Under this
197        implementation as well as  SVr4  curses,  these  functions
198        correctly  manipulate  all other highlights (specifically,
199        <STRONG>A_ALTCHARSET</STRONG>, <STRONG>A_PROTECT</STRONG>, and <STRONG>A_INVIS</STRONG>).
200
201        XSI Curses added the new entry points, <STRONG>attr_get</STRONG>,  <STRONG>attr_on</STRONG>,
202        <STRONG>attr_off</STRONG>,   <STRONG>attr_set</STRONG>,   <STRONG>wattr_on</STRONG>,   <STRONG>wattr_off</STRONG>,  <STRONG>wattr_get</STRONG>,
203        <STRONG>wattr_set</STRONG>.  These are intended to work with a  new  series
204        of highlight macros prefixed with <STRONG>WA_</STRONG>.
205
206         <STRONG>WA_NORMAL</STRONG>       Normal display (no highlight)
207         <STRONG>WA_STANDOUT</STRONG>     Best highlighting mode of the terminal.
208         <STRONG>WA_UNDERLINE</STRONG>    Underlining
209         <STRONG>WA_REVERSE</STRONG>      Reverse video
210         <STRONG>WA_BLINK</STRONG>        Blinking
211         <STRONG>WA_DIM</STRONG>          Half bright
212         <STRONG>WA_BOLD</STRONG>         Extra bright or bold
213         <STRONG>WA_ALTCHARSET</STRONG>   Alternate character set
214
215        The XSI curses standard specifies that each pair of corre-
216        sponding <STRONG>A_</STRONG> and <STRONG>WA_</STRONG>-using functions operates on  the  same
217        current-highlight information.
218
219        The XSI standard extended conformance level adds new high-
220        lights <STRONG>A_HORIZONTAL</STRONG>, <STRONG>A_LEFT</STRONG>, <STRONG>A_LOW</STRONG>, <STRONG>A_RIGHT</STRONG>, <STRONG>A_TOP</STRONG>, <STRONG>A_VER-</STRONG>
221        <STRONG>TICAL</STRONG>  (and  corresponding <STRONG>WA_</STRONG> macros for each) which this
222        curses does not yet support.
223
224
225 </PRE>
226 <H2>SEE ALSO</H2><PRE>
227        <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>,        <STRONG><A HREF="curs_addch.3x.html">curs_addch(3x)</A></STRONG>,        <STRONG><A HREF="curs_addstr.3x.html">curs_addstr(3x)</A></STRONG>,
228        <STRONG><A HREF="curs_bkgd.3x.html">curs_bkgd(3x)</A></STRONG>, <STRONG><A HREF="curs_printw.3x.html">curs_printw(3x)</A></STRONG>
229
230
231
232                                                     <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>
233 </PRE>
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