doc/html/man/curs_threads.3x.html

   1 <!--
   2   ****************************************************************************
   3   * Copyright (c) 2008-2015,2017 Free Software Foundation, Inc.              *
   4   *                                                                          *
   5   * Permission is hereby granted, free of charge, to any person obtaining a  *
   6   * copy of this software and associated documentation files (the            *
   7   * "Software"), to deal in the Software without restriction, including      *
   8   * without limitation the rights to use, copy, modify, merge, publish,      *
   9   * distribute, distribute with modifications, sublicense, and/or sell       *
  10   * copies of the Software, and to permit persons to whom the Software is    *
  11   * furnished to do so, subject to the following conditions:                 *
  12   *                                                                          *
  13   * The above copyright notice and this permission notice shall be included  *
  14   * in all copies or substantial portions of the Software.                   *
  15   *                                                                          *
  16   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
  17   * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
  18   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
  19   * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
  20   * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
  21   * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
  22   * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
  23   *                                                                          *
  24   * Except as contained in this notice, the name(s) of the above copyright   *
  25   * holders shall not be used in advertising or otherwise to promote the     *
  26   * sale, use or other dealings in this Software without prior written       *
  27   * authorization.                                                           *
  28   ****************************************************************************
  29   * @Id: curs_threads.3x,v 1.24 2017/11/18 23:56:00 tom Exp @
  30   * ***************************************************************************
  31   * ***************************************************************************
  32 -->
  33 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
  34 <HTML>
  35 <HEAD>
  36 <meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
  37 <meta name="generator" content="Manpage converted by man2html - see http://invisible-island.net/scripts/readme.html#others_scripts">
  38 <TITLE>curs_threads 3x</TITLE>
  39 <link rev=made href="mailto:bug-ncurses@gnu.org">
  40 <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
  41 </HEAD>
  42 <BODY>
  43 <H1 class="no-header">curs_threads 3x</H1>
  44 <PRE>
  45 <STRONG><A HREF="curs_threads.3x.html">curs_threads(3x)</A></STRONG>                                              <STRONG><A HREF="curs_threads.3x.html">curs_threads(3x)</A></STRONG>
  46
  47
  48
  49
  50 </PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
  51        <STRONG>curs_threads</STRONG> - <STRONG>curses</STRONG> thread support
  52
  53
  54 </PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
  55        <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
  56
  57        <STRONG>typedef</STRONG> <STRONG>int</STRONG> <STRONG>(*NCURSES_WINDOW_CB)(WINDOW</STRONG> <STRONG>*,</STRONG> <STRONG>void</STRONG> <STRONG>*);</STRONG>
  58        <STRONG>typedef</STRONG> <STRONG>int</STRONG> <STRONG>(*NCURSES_SCREEN_CB)(SCREEN</STRONG> <STRONG>*,</STRONG> <STRONG>void</STRONG> <STRONG>*);</STRONG>
  59        <STRONG>int</STRONG> <STRONG>get_escdelay(void);</STRONG>
  60        <STRONG>int</STRONG> <STRONG>set_escdelay(int</STRONG> <STRONG>size);</STRONG>
  61        <STRONG>int</STRONG> <STRONG>set_tabsize(int</STRONG> <STRONG>size);</STRONG>
  62        <STRONG>int</STRONG> <STRONG>use_screen(SCREEN</STRONG> <STRONG>*scr,</STRONG> <STRONG>NCURSES_SCREEN_CB</STRONG> <STRONG>func,</STRONG> <STRONG>void</STRONG> <STRONG>*data);</STRONG>
  63        <STRONG>int</STRONG> <STRONG>use_window(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>NCURSES_WINDOW_CB</STRONG> <STRONG>func,</STRONG> <STRONG>void</STRONG> <STRONG>*data);</STRONG>
  64
  65
  66 </PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
  67        This  implementation  can  be configured to provide rudimentary support
  68        for multi-threaded applications.  This makes a  different  set  of  li-
  69        braries, e.g., <EM>libncursest</EM> since the binary interfaces are different.
  70
  71        Rather  than  modify  the interfaces to pass a thread specifier to each
  72        function, it adds a few functions which can be used in  any  configura-
  73        tion  which  hide  the  mutex's needed to prevent concurrent use of the
  74        global variables when configured for threading.
  75
  76        In addition to forcing access to members of the <STRONG>WINDOW</STRONG> structure to  be
  77        via  functions  (see <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG>), it makes functions of the common
  78        global variables, e.g., COLORS,  COLOR_PAIRS,  COLS,  ESCDELAY,  LINES,
  79        TABSIZE  curscr, newscr and ttytype.  Those variables are maintained as
  80        read-only values, stored in the <STRONG>SCREEN</STRONG> structure.
  81
  82        Even this is not enough to make a thread-safe application using curses.
  83        A multi-threaded application would be expected to have threads updating
  84        separate windows (within the same  device),  or  updating  on  separate
  85        screens  (on  different  devices).  Also, a few of the global variables
  86        are considered writable by some applications.  The functions  described
  87        here address these special situations.
  88
  89        The ESCDELAY and TABSIZE global variables are modified by some applica-
  90        tions.  To modify them in any configuration, use  the  <STRONG>set_escdelay</STRONG>  or
  91        <STRONG>set_tabsize</STRONG> functions.  Other global variables are not modifiable.
  92
  93        The <STRONG>get_escdelay</STRONG> function returns the value for ESCDELAY.
  94
  95        The  <STRONG>use_window</STRONG> and <STRONG>use_screen</STRONG> functions provide coarse granularity mu-
  96        texes for their respective <STRONG>WINDOW</STRONG> and <STRONG>SCREEN</STRONG> parameters, and call a us-
  97        er-supplied  function,  passing  it a <EM>data</EM> parameter, and returning the
  98        value from the user-supplied function to the application.
  99
 100
 101 </PRE><H3><a name="h3-USAGE">USAGE</a></H3><PRE>
 102        All of the ncurses library functions assume that the locale is not  al-
 103        tered during operation.  In addition, they use data which is maintained
 104        within a hierarchy of scopes.
 105
 106           <STRONG>o</STRONG>   global data, e.g., used in the low-level terminfo or termcap in-
 107               terfaces.
 108
 109           <STRONG>o</STRONG>   terminal data, e.g., associated with a call to <EM>set</EM><STRONG>_</STRONG><EM>curterm</EM>.  The
 110               terminal data are initialized when screens are created.
 111
 112           <STRONG>o</STRONG>   screen data, e.g., associated with a call to <EM>newterm</EM> or <EM>initscr</EM>.
 113
 114           <STRONG>o</STRONG>   window data, e.g., associated with a call to <EM>newwin</EM>  or  <EM>subwin</EM>.
 115               Windows  are  associated with screens.  Pads are not necessarily
 116               associated with a particular screen.
 117
 118               Most curses applications operate on one or more windows within a
 119               single screen.
 120
 121           <STRONG>o</STRONG>   reentrant, i.e., it uses only the data passed as parameters.
 122
 123        This  table lists the scope of data used for each symbol in the ncurses
 124        library when it is configured to support threading:
 125
 126             Symbol                  Scope
 127             -------------------------------------------------------------
 128             BC                      global
 129             COLORS                  screen (readonly)
 130             COLOR_PAIR              reentrant
 131             COLOR_PAIRS             screen (readonly)
 132             COLS                    screen (readonly)
 133             ESCDELAY                screen (readonly, see <EM>set</EM><STRONG>_</STRONG><EM>escdelay</EM>)
 134             LINES                   screen (readonly)
 135             PAIR_NUMBER             reentrant
 136             PC                      global
 137             SP                      global
 138             TABSIZE                 screen (readonly)
 139             UP                      global
 140             acs_map                 screen (readonly)
 141             add_wch                 window (stdscr)
 142             add_wchnstr             window (stdscr)
 143             add_wchstr              window (stdscr)
 144             addch                   window (stdscr)
 145             addchnstr               window (stdscr)
 146             addchstr                window (stdscr)
 147             addnstr                 window (stdscr)
 148             addnwstr                window (stdscr)
 149             addstr                  window (stdscr)
 150             addwstr                 window (stdscr)
 151             assume_default_colors   screen
 152             attr_get                window (stdscr)
 153             attr_off                window (stdscr)
 154             attr_on                 window (stdscr)
 155             attr_set                window (stdscr)
 156             attroff                 window (stdscr)
 157             attron                  window (stdscr)
 158             attrset                 window (stdscr)
 159             baudrate                screen
 160             beep                    screen
 161             bkgd                    window (stdscr)
 162             bkgdset                 window (stdscr)
 163             bkgrnd                  window (stdscr)
 164             bkgrndset               window (stdscr)
 165             boolcodes               global (readonly)
 166             boolfnames              global (readonly)
 167             boolnames               global (readonly)
 168             border                  window (stdscr)
 169             border_set              window (stdscr)
 170             box                     window (stdscr)
 171             box_set                 window (stdscr)
 172             can_change_color        terminal
 173             cbreak                  screen
 174             chgat                   window (stdscr)
 175             clear                   window (stdscr)
 176             clearok                 window
 177             clrtobot                window (stdscr)
 178             clrtoeol                window (stdscr)
 179             color_content           screen
 180             color_set               window (stdscr)
 181             copywin                 window locks(source, target)
 182
 183             cur_term                terminal
 184             curs_set                screen
 185             curscr                  screen (readonly)
 186             curses_version          global (readonly)
 187             def_prog_mode           terminal
 188             def_shell_mode          terminal
 189             define_key              screen
 190             del_curterm             screen
 191             delay_output            screen
 192             delch                   window (stdscr)
 193             deleteln                window (stdscr)
 194             delscreen               global locks(screenlist, screen)
 195             delwin                  global locks(windowlist)
 196             derwin                  screen
 197             doupdate                screen
 198             dupwin                  screen locks(window)
 199             echo                    screen
 200             echo_wchar              window (stdscr)
 201             echochar                window (stdscr)
 202             endwin                  screen
 203             erase                   window (stdscr)
 204             erasechar               window (stdscr)
 205             erasewchar              window (stdscr)
 206             filter                  global
 207             flash                   terminal
 208             flushinp                screen
 209             get_wch                 screen (input-operation)
 210             get_wstr                screen (input-operation)
 211             getattrs                window
 212             getbegx                 window
 213             getbegy                 window
 214             getbkgd                 window
 215             getbkgrnd               window
 216             getcchar                reentrant
 217             getch                   screen (input-operation)
 218             getcurx                 window
 219             getcury                 window
 220             getmaxx                 window
 221             getmaxy                 window
 222             getmouse                screen (input-operation)
 223             getn_wstr               screen (input-operation)
 224             getnstr                 screen (input-operation)
 225             getparx                 window
 226             getpary                 window
 227             getstr                  screen (input-operation)
 228             getwin                  screen (input-operation)
 229             halfdelay               screen
 230             has_colors              terminal
 231             has_ic                  terminal
 232             has_il                  terminal
 233             has_key                 screen
 234             hline                   window (stdscr)
 235             hline_set               window (stdscr)
 236             idcok                   window
 237             idlok                   window
 238             immedok                 window
 239             in_wch                  window (stdscr)
 240             in_wchnstr              window (stdscr)
 241             in_wchstr               window (stdscr)
 242             inch                    window (stdscr)
 243             inchnstr                window (stdscr)
 244             inchstr                 window (stdscr)
 245             init_color              screen
 246             init_pair               screen
 247             initscr                 global locks(screenlist)
 248             innstr                  window (stdscr)
 249
 250             innwstr                 window (stdscr)
 251             ins_nwstr               window (stdscr)
 252             ins_wch                 window (stdscr)
 253             ins_wstr                window (stdscr)
 254             insch                   window (stdscr)
 255             insdelln                window (stdscr)
 256             insertln                window (stdscr)
 257             insnstr                 window (stdscr)
 258             insstr                  window (stdscr)
 259             instr                   window (stdscr)
 260             intrflush               terminal
 261             inwstr                  window (stdscr)
 262             is_cleared              window
 263             is_idcok                window
 264             is_idlok                window
 265             is_immedok              window
 266             is_keypad               window
 267             is_leaveok              window
 268             is_linetouched          window
 269             is_nodelay              window
 270             is_notimeout            window
 271             is_scrollok             window
 272             is_syncok               window
 273             is_term_resized         terminal
 274             is_wintouched           window
 275             isendwin                screen
 276             key_defined             screen
 277             key_name                global (static data)
 278             keybound                screen
 279             keyname                 global (static data)
 280             keyok                   screen
 281             keypad                  window
 282             killchar                terminal
 283             killwchar               terminal
 284             leaveok                 window
 285             longname                screen
 286             mcprint                 terminal
 287             meta                    screen
 288             mouse_trafo             window (stdscr)
 289             mouseinterval           screen
 290             mousemask               screen
 291             move                    window (stdscr)
 292             mvadd_wch               window (stdscr)
 293             mvadd_wchnstr           window (stdscr)
 294             mvadd_wchstr            window (stdscr)
 295             mvaddch                 window (stdscr)
 296             mvaddchnstr             window (stdscr)
 297             mvaddchstr              window (stdscr)
 298             mvaddnstr               window (stdscr)
 299             mvaddnwstr              window (stdscr)
 300             mvaddstr                window (stdscr)
 301             mvaddwstr               window (stdscr)
 302             mvchgat                 window (stdscr)
 303             mvcur                   screen
 304             mvdelch                 window (stdscr)
 305             mvderwin                window (stdscr)
 306             mvget_wch               screen (input-operation)
 307             mvget_wstr              screen (input-operation)
 308             mvgetch                 screen (input-operation)
 309             mvgetn_wstr             screen (input-operation)
 310             mvgetnstr               screen (input-operation)
 311             mvgetstr                screen (input-operation)
 312             mvhline                 window (stdscr)
 313             mvhline_set             window (stdscr)
 314             mvin_wch                window (stdscr)
 315             mvin_wchnstr            window (stdscr)
 316
 317             mvin_wchstr             window (stdscr)
 318             mvinch                  window (stdscr)
 319             mvinchnstr              window (stdscr)
 320             mvinchstr               window (stdscr)
 321             mvinnstr                window (stdscr)
 322             mvinnwstr               window (stdscr)
 323             mvins_nwstr             window (stdscr)
 324             mvins_wch               window (stdscr)
 325             mvins_wstr              window (stdscr)
 326             mvinsch                 window (stdscr)
 327             mvinsnstr               window (stdscr)
 328             mvinsstr                window (stdscr)
 329             mvinstr                 window (stdscr)
 330             mvinwstr                window (stdscr)
 331             mvprintw                window (stdscr)
 332             mvscanw                 screen
 333             mvvline                 window (stdscr)
 334             mvvline_set             window (stdscr)
 335             mvwadd_wch              window
 336             mvwadd_wchnstr          window
 337             mvwadd_wchstr           window
 338             mvwaddch                window
 339             mvwaddchnstr            window
 340             mvwaddchstr             window
 341             mvwaddnstr              window
 342             mvwaddnwstr             window
 343             mvwaddstr               window
 344             mvwaddwstr              window
 345             mvwchgat                window
 346             mvwdelch                window
 347             mvwget_wch              screen (input-operation)
 348             mvwget_wstr             screen (input-operation)
 349             mvwgetch                screen (input-operation)
 350             mvwgetn_wstr            screen (input-operation)
 351             mvwgetnstr              screen (input-operation)
 352             mvwgetstr               screen (input-operation)
 353             mvwhline                window
 354             mvwhline_set            window
 355             mvwin                   window
 356             mvwin_wch               window
 357             mvwin_wchnstr           window
 358             mvwin_wchstr            window
 359             mvwinch                 window
 360             mvwinchnstr             window
 361             mvwinchstr              window
 362             mvwinnstr               window
 363             mvwinnwstr              window
 364             mvwins_nwstr            window
 365             mvwins_wch              window
 366             mvwins_wstr             window
 367             mvwinsch                window
 368             mvwinsnstr              window
 369             mvwinsstr               window
 370             mvwinstr                window
 371             mvwinwstr               window
 372             mvwprintw               window
 373             mvwscanw                screen
 374             mvwvline                window
 375             mvwvline_set            window
 376             napms                   reentrant
 377             newpad                  global locks(windowlist)
 378             newscr                  screen (readonly)
 379             newterm                 global locks(screenlist)
 380             newwin                  global locks(windowlist)
 381             nl                      screen
 382             nocbreak                screen
 383
 384             nodelay                 window
 385             noecho                  screen
 386             nofilter                global
 387             nonl                    screen
 388             noqiflush               terminal
 389             noraw                   screen
 390             notimeout               window
 391             numcodes                global (readonly)
 392             numfnames               global (readonly)
 393             numnames                global (readonly)
 394             ospeed                  global
 395             overlay                 window locks(source, target)
 396             overwrite               window locks(source, target)
 397             pair_content            screen
 398             pecho_wchar             screen
 399             pechochar               screen
 400             pnoutrefresh            screen
 401             prefresh                screen
 402             printw                  window
 403             putp                    global
 404             putwin                  window
 405             qiflush                 terminal
 406             raw                     screen
 407             redrawwin               window
 408             refresh                 screen
 409             reset_prog_mode         screen
 410             reset_shell_mode        screen
 411             resetty                 terminal
 412             resize_term             screen locks(windowlist)
 413             resizeterm              screen
 414             restartterm             screen
 415             ripoffline              global (static data)
 416             savetty                 terminal
 417             scanw                   screen
 418             scr_dump                screen
 419             scr_init                screen
 420             scr_restore             screen
 421             scr_set                 screen
 422             scrl                    window (stdscr)
 423             scroll                  window
 424             scrollok                window
 425             set_curterm             screen
 426             set_escdelay            screen
 427             set_tabsize             screen
 428             set_term                global locks(screenlist, screen)
 429             setcchar                reentrant
 430             setscrreg               window (stdscr)
 431             setupterm               global
 432             slk_attr                screen
 433             slk_attr_off            screen
 434             slk_attr_on             screen
 435             slk_attr_set            screen
 436             slk_attroff             screen
 437             slk_attron              screen
 438             slk_attrset             screen
 439             slk_clear               screen
 440             slk_color               screen
 441             slk_init                screen
 442             slk_label               screen
 443             slk_noutrefresh         screen
 444             slk_refresh             screen
 445             slk_restore             screen
 446             slk_set                 screen
 447             slk_touch               screen
 448             slk_wset                screen
 449             standend                window
 450
 451             standout                window
 452             start_color             screen
 453             stdscr                  screen (readonly)
 454             strcodes                global (readonly)
 455             strfnames               global (readonly)
 456             strnames                global (readonly)
 457             subpad                  window
 458             subwin                  window
 459             syncok                  window
 460             term_attrs              screen
 461             termattrs               screen
 462             termname                terminal
 463             tgetent                 global
 464             tgetflag                global
 465             tgetnum                 global
 466             tgetstr                 global
 467             tgoto                   global
 468             tigetflag               terminal
 469             tigetnum                terminal
 470             tigetstr                terminal
 471             timeout                 window (stdscr)
 472             touchline               window
 473             touchwin                window
 474             tparm                   global (static data)
 475             tputs                   screen
 476             trace                   global (static data)
 477             ttytype                 screen (readonly)
 478             typeahead               screen
 479             unctrl                  screen
 480             unget_wch               screen (input-operation)
 481             ungetch                 screen (input-operation)
 482             ungetmouse              screen (input-operation)
 483             untouchwin              window
 484             use_default_colors      screen
 485             use_env                 global (static data)
 486             use_extended_names      global (static data)
 487             use_legacy_coding       screen
 488             use_screen              global locks(screenlist, screen)
 489             use_window              global locks(windowlist, window)
 490             vid_attr                screen
 491             vid_puts                screen
 492             vidattr                 screen
 493             vidputs                 screen
 494             vline                   window (stdscr)
 495             vline_set               window (stdscr)
 496             vw_printw               window
 497             vw_scanw                screen
 498             vwprintw                window
 499             vwscanw                 screen
 500             wadd_wch                window
 501             wadd_wchnstr            window
 502             wadd_wchstr             window
 503             waddch                  window
 504             waddchnstr              window
 505             waddchstr               window
 506             waddnstr                window
 507             waddnwstr               window
 508             waddstr                 window
 509             waddwstr                window
 510             wattr_get               window
 511             wattr_off               window
 512             wattr_on                window
 513             wattr_set               window
 514             wattroff                window
 515             wattron                 window
 516             wattrset                window
 517
 518             wbkgd                   window
 519             wbkgdset                window
 520             wbkgrnd                 window
 521             wbkgrndset              window
 522             wborder                 window
 523             wborder_set             window
 524             wchgat                  window
 525             wclear                  window
 526             wclrtobot               window
 527             wclrtoeol               window
 528             wcolor_set              window
 529             wcursyncup              screen (affects window plus parents)
 530             wdelch                  window
 531             wdeleteln               window
 532             wecho_wchar             window
 533             wechochar               window
 534             wenclose                window
 535             werase                  window
 536             wget_wch                screen (input-operation)
 537             wget_wstr               screen (input-operation)
 538             wgetbkgrnd              window
 539             wgetch                  screen (input-operation)
 540             wgetdelay               window
 541             wgetn_wstr              screen (input-operation)
 542             wgetnstr                screen (input-operation)
 543             wgetparent              window
 544             wgetscrreg              window
 545             wgetstr                 screen (input-operation)
 546             whline                  window
 547             whline_set              window
 548             win_wch                 window
 549             win_wchnstr             window
 550             win_wchstr              window
 551             winch                   window
 552             winchnstr               window
 553             winchstr                window
 554             winnstr                 window
 555             winnwstr                window
 556             wins_nwstr              window
 557             wins_wch                window
 558             wins_wstr               window
 559             winsch                  window
 560             winsdelln               window
 561             winsertln               window
 562             winsnstr                window
 563             winsstr                 window
 564             winstr                  window
 565             winwstr                 window
 566             wmouse_trafo            window
 567             wmove                   window
 568             wnoutrefresh            screen
 569             wprintw                 window
 570             wredrawln               window
 571             wrefresh                screen
 572             wresize                 window locks(windowlist)
 573             wscanw                  screen
 574             wscrl                   window
 575             wsetscrreg              window
 576             wstandend               window
 577             wstandout               window
 578             wsyncdown               screen (affects window plus parents)
 579             wsyncup                 screen (affects window plus parents)
 580             wtimeout                window
 581             wtouchln                window
 582             wunctrl                 global (static data)
 583             wvline                  window
 584
 585             wvline_set              window
 586
 587
 588 </PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
 589        These functions all return <STRONG>TRUE</STRONG> or <STRONG>FALSE</STRONG>, except as noted.
 590
 591
 592 </PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
 593        Both a macro and a function are provided for each name.
 594
 595
 596 </PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
 597        These routines are specific to ncurses.  They  were  not  supported  on
 598        Version 7, BSD or System V implementations.  It is recommended that any
 599        code depending on ncurses extensions be conditioned using  NCURSES_VER-
 600        SION.
 601
 602
 603 </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
 604        <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG>, <STRONG><A HREF="curs_variables.3x.html">curs_variables(3x)</A></STRONG>.
 605
 606
 607
 608                                                               <STRONG><A HREF="curs_threads.3x.html">curs_threads(3x)</A></STRONG>
 609 </PRE>
 610 <div class="nav">
 611 <ul>
 612 <li><a href="#h2-NAME">NAME</a></li>
 613 <li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
 614 <li><a href="#h2-DESCRIPTION">DESCRIPTION</a>
 615 <ul>
 616 <li><a href="#h3-USAGE">USAGE</a></li>
 617 </ul>
 618 </li>
 619 <li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
 620 <li><a href="#h2-NOTES">NOTES</a></li>
 621 <li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
 622 <li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
 623 </ul>
 624 </div>
 625 </BODY>
 626 </HTML>