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-
-
-
- ccccuuuurrrrsssseeeessss((((3333XXXX)))) ccccuuuurrrrsssseeeessss((((3333XXXX))))
-
-
-
- NNNNAAAAMMMMEEEE
- _cccc_uuuu_rrrr_ssss_eeee_ssss - CRT screen handling and optimization package
-
- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- _####_iiii_nnnn_cccc_llll_uuuu_dddd_eeee _<<<<_cccc_uuuu_rrrr_ssss_eeee_ssss_...._hhhh_>>>>
-
- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- The _cccc_uuuu_rrrr_ssss_eeee_ssss library routines give the user a terminal-independent method
- of updating character screens with reasonable optimization. A program
- using these routines must be compiled with the _----_llll_cccc_uuuu_rrrr_ssss_eeee_ssss option of _cccc_cccc.
-
- The _cccc_uuuu_rrrr_ssss_eeee_ssss package allows: overall screen, window and pad manipulation;
- output to windows and pads; reading terminal input; control over terminal
- and _cccc_uuuu_rrrr_ssss_eeee_ssss input and output options; environment query routines; color
- manipulation; use of soft label keys; terminfo access; and access to
- low-level _cccc_uuuu_rrrr_ssss_eeee_ssss routines.
-
- To initialize the routines, the routine _iiii_nnnn_iiii_tttt_ssss_cccc_rrrr or _nnnn_eeee_wwww_tttt_eeee_rrrr_mmmm must be called
- before any of the other routines that deal with windows and screens are
- used. The routine _eeee_nnnn_dddd_wwww_iiii_nnnn must be called before exiting. To get
- character-at-a-time input without echoing (most interactive, screen-
- oriented programs want this), the following sequence should be used:
-
- _iiii_nnnn_iiii_tttt_ssss_cccc_rrrr_,,,,_cccc_bbbb_rrrr_eeee_aaaa_kkkk_,,,,_nnnn_oooo_eeee_cccc_hhhh_oooo_;;;;
-
- Most programs would additionally use the sequence:
-
- _nnnn_oooo_nnnn_llll_,,,,_iiii_nnnn_tttt_rrrr_ffff_llll_uuuu_ssss_hhhh_((((_ssss_tttt_dddd_ssss_cccc_rrrr_,,,,_FFFF_AAAA_LLLL_SSSS_EEEE_))))_,,,,_kkkk_eeee_yyyy_pppp_aaaa_dddd_((((_ssss_tttt_dddd_ssss_cccc_rrrr_,,,,_TTTT_RRRR_UUUU_EEEE_))))_;;;;
-
- Before a _cccc_uuuu_rrrr_ssss_eeee_ssss program is run, the tab stops of the terminal should be
- set and its initialization strings, if defined, must be output. This can
- be done by executing the _tttt_pppp_uuuu_tttt _iiii_nnnn_iiii_tttt command after the shell environment
- variable _TTTT_EEEE_RRRR_MMMM has been exported. [See _tttt_eeee_rrrr_mmmm_iiii_nnnn_ffff_oooo(4) for further details.]
-
- The _cccc_uuuu_rrrr_ssss_eeee_ssss library permits manipulation of data structures, called
- _w_i_n_d_o_w_s, which can be thought of as two-dimensional arrays of characters.
- A default window called stdscr, which is the size of the terminal screen,
- is supplied. Others may be created with newwin().
-
- Windows are referred to by variables declared as WINDOW *. These data
- structures are manipulated with routines described on 3X pages (whose
- names begin ``_cccc_uuuu_rrrr_ssss_____''). Among the most basic routines are move and
- addch. More general versions of these routines are included that allow
- the user to specify a window.
-
- After using routines to manipulate a window, refresh is called, telling
- _cccc_uuuu_rrrr_ssss_eeee_ssss to make the user's CRT screen look like stdscr. The characters in
- a window are actually of type chtype (character and attribute data) so
- that other information about the character may also be stored with each
- character.
-
-
-
-
-
- PPPPaaaaggggeeee 1111
-
-
-
-
-
-
- ccccuuuurrrrsssseeeessss((((3333XXXX)))) ccccuuuurrrrsssseeeessss((((3333XXXX))))
-
-
-
- Special windows called _p_a_d_s may also be manipulated. These are windows
- that are not necessarily associated with a viewable part of the screen.
- See _cccc_uuuu_rrrr_ssss______pppp_aaaa_dddd(3X) for more information.
-
- In addition to drawing characters on the screen, video attributes and
- colors may be included, causing the characters to show up in such modes
- as underlined, reverse video or color on terminals that support such
- display enhancements. Line drawing characters may be specified to be
- output. On input, _cccc_uuuu_rrrr_ssss_eeee_ssss is also able to translate arrow and function
- keys that transmit escape sequences into single values. The video
- attributes, line drawing characters and input values use names, defined
- in <curses.h>, such as A_REVERSE, ACS_HLINE, and KEY_LEFT.
-
- If the environment variables LINES and COLUMNS are set, or if the program
- is executing in a window environment, line and column information in the
- environment will override information read by _tttt_eeee_rrrr_mmmm_iiii_nnnn_ffff_oooo. This would
- affect a program running in an AT&T 630 layer, for example, where the
- size of a screen is changeable.
-
- If the environment variable TERMINFO is defined, any program using _cccc_uuuu_rrrr_ssss_eeee_ssss
- checks for a local terminal definition before checking in the standard
- place. For example, if TERM _iiii_ssss _ssss_eeee_tttt _tttt_oooo _aaaa_tttt_tttt_4444_4444_2222_4444, then the compiled
- terminal definition is found in
-
- /usr/share/lib/terminfo/a/att4424.
-
- (The a is copied from the first letter of att4424 to avoid creation of
- huge directories.) However, if TERMINFO is set to $HOME/myterms, _cccc_uuuu_rrrr_ssss_eeee_ssss
- first checks
-
- $HOME/myterms/a/att4424,
-
- and if that fails, it then checks
-
- /usr/share/lib/terminfo/a/att4424.
-
- This is useful for developing experimental definitions or when write
- permission in /usr/share/lib/terminfo is not available.
-
- The integer variables LINES and COLS are defined in <curses.h> and will
- be filled in by initscr with the size of the screen. The constants TRUE
- and FALSE have the values 1 and 0, respectively.
-
- _cccc_uuuu_rrrr_ssss_eeee_ssss routines also define the WINDOW * variable curscr which is used
- for certain low-level operations like clearing and redrawing a screen
- containing garbage. curscr can be used in only a few routines.
-
- IIIInnnntttteeeerrrrnnnnaaaattttiiiioooonnnnaaaallll FFFFuuuunnnnccccttttiiiioooonnnnssss
- The number of bytes and the number of columns to hold a character from
- the supplementary character set is locale-specific (locale category
- _LLLL_CCCC______CCCC_TTTT_YYYY_PPPP_EEEE) and can be specified in the character class table.
-
-
-
-
- PPPPaaaaggggeeee 2222
-
-
-
-
-
-
- ccccuuuurrrrsssseeeessss((((3333XXXX)))) ccccuuuurrrrsssseeeessss((((3333XXXX))))
-
-
-
- For editing, operating at the character level is entirely appropriate.
- For screen formatting, arbitrary movement of characters on screen is not
- desirable.
-
- Overwriting characters (_aaaa_dddd_dddd_cccc_hhhh, for example) operates on a screen level.
- Overwriting a character by a character that requires a different number
- of columns may produce _o_r_p_h_a_n_e_d _c_o_l_u_m_n_s. These orphaned columns are
- filled with background characters.
-
- Inserting characters (_iiii_nnnn_ssss_cccc_hhhh, for example) operates on a character level
- (that is, at the character boundaries). The specified character is
- inserted right before the character, regardless of which column of a
- character the cursor points to. Before insertion, the cursor position is
- adjusted to the first column of the character.
-
- As with inserting characters, deleting characters (_dddd_eeee_llll_cccc_hhhh, for example)
- operates on a character level (that is, at the character boundaries).
- The character at the cursor is deleted whichever column of the character
- the cursor points to. Before deletion, the cursor position is adjusted
- to the first column of the character.
-
- A _m_u_l_t_i-_c_o_l_u_m_n character cannot be put on the last column of a line.
- When such attempts are made, the last column is set to the background
- character. In addition, when such an operation creates orphaned columns,
- the orphaned columns are filled with background characters.
-
- Overlapping and overwriting a window follows the operation of overwriting
- characters around its edge. The orphaned columns, if any, are handled as
- in the character operations.
-
- The cursor is allowed to be placed anywhere in a window. If the
- insertion or deletion is made when the cursor points to the second or
- later column position of a character that holds multiple columns, the
- cursor is adjusted to the first column of the character before the
- insertion or deletion.
-
- RRRRoooouuuuttttiiiinnnneeee aaaannnndddd AAAArrrrgggguuuummmmeeeennnntttt NNNNaaaammmmeeeessss
- Many _cccc_uuuu_rrrr_ssss_eeee_ssss routines have two or more versions. Routines prefixed with p
- require a pad argument. Routines whose names contain a _wwww generally
- require either a window argument or a wide-character argument. If _wwww
- appears twice in a routine name, the routine usually requires both a
- window and a wide-character argument. Routines that do not require a pad
- or window argument generally use stdscr.
-
- The routines prefixed with mv require an _x and _y coordinate to move to
- before performing the appropriate action. The mv routines imply a call
- to move before the call to the other routine. The coordinate _y always
- refers to the row (of the window), and _x always refers to the column.
- The upper left-hand corner is always (0,0), not (1,1).
-
-
-
-
-
-
- PPPPaaaaggggeeee 3333
-
-
-
-
-
-
- ccccuuuurrrrsssseeeessss((((3333XXXX)))) ccccuuuurrrrsssseeeessss((((3333XXXX))))
-
-
-
- The routines prefixed with mvw take both a window argument and _x and _y
- coordinates. The window argument is always specified before the
- coordinates.
-
- In each case, _w_i_n is the window affected, and _p_a_d is the pad affected;
- _w_i_n and _p_a_d are always pointers to type WINDOW.
-
- Option setting routines require a Boolean flag _b_f with the value TRUE or
- FALSE; _b_f is always of type bool. The variables _c_h and _a_t_t_r_s are always
- of type chtype. The types WINDOW, SCREEN, bool, and chtype are defined
- in <curses.h>. The type TERMINAL is defined in <term.h>. All other
- arguments are integers.
-
- RRRRoooouuuuttttiiiinnnneeee NNNNaaaammmmeeee IIIInnnnddddeeeexxxx
- The following table lists each CURSES routine and the name of the manual
- page on which it is described.
- curses Routine Name Manual Page Name
- ___________________________________________
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
-
-
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- PPPPaaaaggggeeee 4444
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-
-
- addch curs_addch(3X)
- addchnstr curs_addchstr(3X)
- addchstr curs_addchstr(3X)
- addnstr curs_addstr(3X)
- addnwstr curs_addwstr(3X)
- addstr curs_addstr(3X)
- addwch curs_addwch(3X)
- addwchnstr curs_addwchstr(3X)
- addwchstr curs_addwchstr(3X)
- addwstr curs_addwstr(3X)
- attroff curs_attr(3X)
- attron curs_attr(3X)
- attrset curs_attr(3X)
- baudrate curs_termattrs(3X)
- beep curs_beep(3X)
- bkgd curs_bkgd(3X)
- bkgdset curs_bkgd(3X)
- border curs_border(3X)
- box curs_border(3X)
- can_change_color curs_color(3X)
- cbreak curs_inopts(3X)
- clear curs_clear(3X)
- clearok curs_outopts(3X)
- clrtobot curs_clear(3X)
- clrtoeol curs_clear(3X)
- color_content curs_color(3X)
- copywin curs_overlay(3X)
- curs_set curs_kernel(3X)
- def_prog_mode curs_kernel(3X)
- def_shell_mode curs_kernel(3X)
- del_curterm curs_terminfo(3X)
- delay_output curs_util(3X)
- delch curs_delch(3X)
- deleteln curs_deleteln(3X)
- delscreen curs_initscr(3X)
- delwin curs_window(3X)
- derwin curs_window(3X)
- doupdate curs_refresh(3X)
- draino curs_util(3X)
- dupwin curs_window(3X)
- echo curs_inopts(3X)
- echochar curs_addch(3X)
- echowchar curs_addwch(3X)
- endwin curs_initscr(3X)
- erase curs_clear(3X)
- erasechar curs_termattrs(3X)
- filter curs_util(3X)
- flash curs_beep(3X)
- flushinp curs_util(3X)
- getbegyx curs_getyx(3X)
-
-
-
-
-
- PPPPaaaaggggeeee 5555
-
-
-
-
-
-
-
-
-
-
- getch curs_getch(3X)
- getmaxyx curs_getyx(3X)
- getnwstr curs_getwstr(3X)
- getparyx curs_getyx(3X)
- getstr curs_getstr(3X)
- getsyx curs_kernel(3X)
- getwch curs_getwch(3X)
- getwin curs_util(3X)
- getwstr curs_getwstr(3X)
- getyx curs_getyx(3X)
- halfdelay curs_inopts(3X)
- has_colors curs_color(3X)
- has_ic curs_termattrs(3X)
- has_il curs_termattrs(3X)
- hline curs_border(3X)
- idcok curs_outopts(3X)
- idlok curs_outopts(3X)
- immedok curs_outopts(3X)
- inch curs_inch(3X)
- inchnstr curs_inchstr(3X)
- inchstr curs_inchstr(3X)
- init_color curs_color(3X)
- init_pair curs_color(3X)
- initscr curs_initscr(3X)
- innstr curs_instr(3X)
- innwstr curs_inwstr(3X)
- insch curs_insch(3X)
- insdelln curs_deleteln(3X)
- insertln curs_deleteln(3X)
- insnstr curs_insstr(3X)
- insnwstr curs_inswstr(3X)
- insstr curs_insstr(3X)
- instr curs_instr(3X)
- inswch curs_inswch(3X)
- inswstr curs_inswstr(3X)
- intrflush curs_inopts(3X)
- inwch curs_inwch(3X)
- inwchnstr curs_inwchstr(3X)
- inwchstr curs_inwchstr(3X)
- inwstr curs_inwstr(3X)
- is_linetouched curs_touch(3X)
- is_wintouched curs_touch(3X)
- isendwin curs_initscr(3X)
- keyname curs_util(3X)
- keypad curs_inopts(3X)
- killchar curs_termattrs(3X)
- leaveok curs_outopts(3X)
- longname curs_termattrs(3X)
- meta curs_inopts(3X)
- move curs_move(3X)
-
-
-
-
-
- PPPPaaaaggggeeee 6666
-
-
-
-
-
-
-
-
-
-
- mvaddch curs_addch(3X)
- mvaddchnstr curs_addchstr(3X)
- mvaddchstr curs_addchstr(3X)
- mvaddnstr curs_addstr(3X)
- mvaddnwstr curs_addwstr(3X)
- mvaddstr curs_addstr(3X)
- mvaddwch curs_addwch(3X)
- mvaddwchnstr curs_addwchstr(3X)
- mvaddwchstr curs_addwchstr(3X)
- mvaddwstr curs_addwstr(3X)
- mvcur curs_terminfo(3X)
- mvdelch curs_delch(3X)
- mvderwin curs_window(3X)
- mvgetch curs_getch(3X)
- mvgetnwstr curs_getwstr(3X)
- mvgetstr curs_getstr(3X)
- mvgetwch curs_getwch(3X)
- mvgetwstr curs_getwstr(3X)
- mvinch curs_inch(3X)
- mvinchnstr curs_inchstr(3X)
- mvinchstr curs_inchstr(3X)
- mvinnstr curs_instr(3X)
- mvinnwstr curs_inwstr(3X)
- mvinsch curs_insch(3X)
- mvinsnstr curs_insstr(3X)
- mvinsnwstr curs_inswstr(3X)
- mvinsstr curs_insstr(3X)
- mvinstr curs_instr(3X)
- mvinswch curs_inswch(3X)
- mvinswstr curs_inswstr(3X)
- mvinwch curs_inwch(3X)
- mvinwchnstr curs_inwchstr(3X)
- mvinwchstr curs_inwchstr(3X)
- mvinwstr curs_inwstr(3X)
- mvprintw curs_printw(3X)
- mvscanw curs_scanw(3X)
- mvwaddch curs_addch(3X)
- mvwaddchnstr curs_addchstr(3X)
- mvwaddchstr curs_addchstr(3X)
- mvwaddnstr curs_addstr(3X)
- mvwaddnwstr curs_addwstr(3X)
- mvwaddstr curs_addstr(3X)
- mvwaddwch curs_addwch(3X)
- mvwaddwchnstr curs_addwchstr(3X)
- mvwaddwchstr curs_addwchstr(3X)
- mvwaddwstr curs_addwstr(3X)
- mvwdelch curs_delch(3X)
- mvwgetch curs_getch(3X)
- mvwgetnwstr curs_getwstr(3X)
- mvwgetstr curs_getstr(3X)
-
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- PPPPaaaaggggeeee 7777
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-
-
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- mvwgetwch curs_getwch(3X)
- mvwgetwstr curs_getwstr(3X)
- mvwin curs_window(3X)
- mvwinch curs_inch(3X)
- mvwinchnstr curs_inchstr(3X)
- mvwinchstr curs_inchstr(3X)
- mvwinnstr curs_instr(3X)
- mvwinnwstr curs_inwstr(3X)
- mvwinsch curs_insch(3X)
- mvwinsnstr curs_insstr(3X)
- mvwinsstr curs_insstr(3X)
- mvwinstr curs_instr(3X)
- mvwinswch curs_inswch(3X)
- mvwinswstr curs_inswstr(3X)
- mvwinwch curs_inwch(3X)
- mvwinwchnstr curs_inwchstr(3X)
- mvwinwchstr curs_inwchstr(3X)
- mvwinwstr curs_inwstr(3X)
- mvwprintw curs_printw(3X)
- mvwscanw curs_scanw(3X)
- napms curs_kernel(3X)
- newpad curs_pad(3X)
- newterm curs_initscr(3X)
- newwin curs_window(3X)
- nl curs_outopts(3X)
- nocbreak curs_inopts(3X)
- nodelay curs_inopts(3X)
- noecho curs_inopts(3X)
- nonl curs_outopts(3X)
- noqiflush curs_inopts(3X)
- noraw curs_inopts(3X)
- notimeout curs_inopts(3X)
- overlay curs_overlay(3X)
- overwrite curs_overlay(3X)
- pair_content curs_color(3X)
- pechochar curs_pad(3X)
- pechowchar curs_pad(3X)
- pnoutrefresh curs_pad(3X)
- prefresh curs_pad(3X)
- printw curs_printw(3X)
- putp curs_terminfo(3X)
- putwin curs_util(3X)
- qiflush curs_inopts(3X)
- raw curs_inopts(3X)
- redrawwin curs_refresh(3X)
- refresh curs_refresh(3X)
- reset_prog_mode curs_kernel(3X)
- reset_shell_mode curs_kernel(3X)
- resetty curs_kernel(3X)
- restartterm curs_terminfo(3X)
-
-
-
-
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- PPPPaaaaggggeeee 8888
-
-
-
-
-
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- ripoffline curs_kernel(3X)
- savetty curs_kernel(3X)
- scanw curs_scanw(3X)
- scr_dump curs_scr_dump(3X)
- scr_init curs_scr_dump(3X)
- scr_restore curs_scr_dump(3X)
- scr_set curs_scr_dump(3X)
- scrl curs_scroll(3X)
- scroll curs_scroll(3X)
- scrollok curs_outopts(3X)
- set_curterm curs_terminfo(3X)
- set_term curs_initscr(3X)
- setscrreg curs_outopts(3X)
- setsyx curs_kernel(3X)
- setterm curs_terminfo(3X)
- setupterm curs_terminfo(3X)
- slk_attroff curs_slk(3X)
- slk_attron curs_slk(3X)
- slk_attrset curs_slk(3X)
- slk_clear curs_slk(3X)
- slk_init curs_slk(3X)
- slk_label curs_slk(3X)
- slk_noutrefresh curs_slk(3X)
- slk_refresh curs_slk(3X)
- slk_restore curs_slk(3X)
- slk_set curs_slk(3X)
- slk_touch curs_slk(3X)
- standend curs_attr(3X)
- standout curs_attr(3X)
- start_color curs_color(3X)
- subpad curs_pad(3X)
- subwin curs_window(3X)
- syncok curs_window(3X)
- termattrs curs_termattrs(3X)
- termname curs_termattrs(3X)
- tgetent curs_termcap(3X)
- tgetflag curs_termcap(3X)
- tgetnum curs_termcap(3X)
- tgetstr curs_termcap(3X)
- tgoto curs_termcap(3X)
- tigetflag curs_terminfo(3X)
- tigetnum curs_terminfo(3X)
- tigetstr curs_terminfo(3X)
- timeout curs_inopts(3X)
- touchline curs_touch(3X)
- touchwin curs_touch(3X)
- tparm curs_terminfo(3X)
- tputs curs_termcap(3X)
- tputs curs_terminfo(3X)
- typeahead curs_inopts(3X)
-
-
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- PPPPaaaaggggeeee 9999
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- unctrl curs_util(3X)
- ungetch curs_getch(3X)
- ungetwch curs_getwch(3X)
- untouchwin curs_touch(3X)
- use_env curs_util(3X)
- vidattr curs_terminfo(3X)
- vidputs curs_terminfo(3X)
- vline curs_border(3X)
- vwprintw curs_printw(3X)
- vwscanw curs_scanw(3X)
- waddch curs_addch(3X)
- waddchnstr curs_addchstr(3X)
- waddchstr curs_addchstr(3X)
- waddnstr curs_addstr(3X)
- waddnwstr curs_addwstr(3X)
- waddstr curs_addstr(3X)
- waddwch curs_addwch(3X)
- waddwchnstr curs_addwchstr(3X)
- waddwchstr curs_addwchstr(3X)
- waddwstr curs_addwstr(3X)
- wattroff curs_attr(3X)
- wattron curs_attr(3X)
- wattrset curs_attr(3X)
- wbkgd curs_bkgd(3X)
- wbkgdset curs_bkgd(3X)
- wborder curs_border(3X)
- wclear curs_clear(3X)
- wclrtobot curs_clear(3X)
- wclrtoeol curs_clear(3X)
- wcursyncup curs_window(3X)
- wdelch curs_delch(3X)
- wdeleteln curs_deleteln(3X)
- wechochar curs_addch(3X)
- wechowchar curs_addwch(3X)
- werase curs_clear(3X)
- wgetch curs_getch(3X)
- wgetnstr curs_getstr(3X)
- wgetnwstr curs_getwstr(3X)
- wgetstr curs_getstr(3X)
- wgetwch curs_getwch(3X)
- wgetwstr curs_getwstr(3X)
- whline curs_border(3X)
- winch curs_inch(3X)
- winchnstr curs_inchstr(3X)
- winchstr curs_inchstr(3X)
- winnstr curs_instr(3X)
- winnwstr curs_inwstr(3X)
- winsch curs_insch(3X)
- winsdelln curs_deleteln(3X)
- winsertln curs_deleteln(3X)
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- PPPPaaaaggggeeee 11110000
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- winsnstr curs_insstr(3X)
- winsnwstr curs_inswstr(3X)
- winsstr curs_insstr(3X)
- winstr curs_instr(3X)
- winswch curs_inswch(3X)
- winswstr curs_inswstr(3X)
- winwch curs_inwch(3X)
- winwchnstr curs_inwchstr(3X)
- winwchstr curs_inwchstr(3X)
- winwstr curs_inwstr(3X)
- wmove curs_move(3X)
- wnoutrefresh curs_refresh(3X)
- wprintw curs_printw(3X)
- wredrawln curs_refresh(3X)
- wrefresh curs_refresh(3X)
- wscanw curs_scanw(3X)
- wscrl curs_scroll(3X)
- wsetscrreg curs_outopts(3X)
- wstandend curs_attr(3X)
- wstandout curs_attr(3X)
- wsyncdown curs_window(3X)
- wsyncup curs_window(3X)
- wtimeout curs_inopts(3X)
- wtouchln curs_touch(3X)
- wvline curs_border(3X)
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- RRRREEEETTTTUUUURRRRNNNN VVVVAAAALLLLUUUUEEEE
- Routines that return an integer return ERR upon failure and an integer
- value other than ERR upon successful completion, unless otherwise noted
- in the routine descriptions.
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- All macros return the value of the window version, except setscrreg,
- wsetscrreg, getyx, getbegyx and getmaxyx. The return values of
- setscrreg, wsetscrreg, getyx, getbegyx and getmaxyx are undefined (i.e.,
- these should not be used as the right-hand side of assignment
- statements).
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- Routines that return pointers return NULL on error.
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- NNNNOOOOTTTTEEEESSSS
- The header file <curses.h> automatically includes the header files
- <stdio.h> and <unctrl.h>.
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- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- _tttt_eeee_rrrr_mmmm_iiii_nnnn_ffff_oooo(4) and 3X pages whose names begin ``_cccc_uuuu_rrrr_ssss_____'' for detailed routine
- descriptions.
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- PPPPaaaaggggeeee 11111111
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