1994-10-07 08:58:58 +00:00
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.TH ncurses 3X ""
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.ds n 5
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1994-12-02 06:40:24 +00:00
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.ds d @TERMINFO@
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1994-10-07 08:58:58 +00:00
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.SH NAME
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\fBncurses\fR - CRT screen handling and optimization package
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.SH SYNOPSIS
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\fB#include <ncurses.h>\fR
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.br
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.SH DESCRIPTION
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The \fBncurses\fR library routines give the user a terminal-independent
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method of updating character screens with reasonable optimization.
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The \fBncurses\fR routines emulate the \fBcurses\fR(3X) library of System V
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Release 4 UNIX, but is freely redistributable in source form. Differences from
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the SVr4 curses are described in the BUGS sections of individual man pages.
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There are only few of these, and as ncurses matures they will become fewer
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still.
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A program using these routines must be linked with the \fB-lncurses\fR option,
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or (if they have been generated) with one of the debugging libraries
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\fB-ldcurses\fR or \fB-lpcurses\fR. The dcurses library generates trace logs
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that describe curses actions; the pcurses library supports profiling.
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The \fBncurses\fR package supports: overall screen, window and pad
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manipulation; output to windows and pads; reading terminal input; control over
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terminal and \fBncurses\fR input and output options; environment query
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routines; color manipulation; use of soft label keys; terminfo capabilities;
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and access to low-level \fBncurses\fR routines.
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To initialize the routines, the routine \fBinitscr\fR or \fBnewterm\fR
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must be called before any of the other routines that deal with windows
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and screens are used. The routine \fBendwin\fR must be called before
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exiting. To get character-at-a-time input without echoing (most
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interactive, screen oriented programs want this), the following
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sequence should be used:
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\fBinitscr(); cbreak(); noecho;\fR
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Most programs would additionally use the sequence:
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\fBnonl(); intrflush(stdscr,FALSE); keypad(stdscr,TRUE);\fR
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Before a \fBncurses\fR program is run, the tab stops of the terminal
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should be set and its initialization strings, if defined, must be
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output. This can be done by executing the \fBtput init\fR command
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after the shell environment variable \fBTERM\fR has been exported.
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[See \fBterminfo\fR(\*n) for further details.]
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The \fBncurses\fR library permits manipulation of data structures,
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called \fIwindows\fR, which can be thought of as two-dimensional
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arrays of characters representing all or part of a CRT screen. A
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default window called \fBstdscr\fR, which is the size of the terminal
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screen, is supplied. Others may be created with \fBnewwin\fR.
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Windows are referred to by variables declared as \fBWINDOW *\fR.
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These data structures are manipulated with routines described on 3X
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pages (whose names begin "curs_"). Among which the most basic
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routines are \fBmove\fR and \fBaddch\fR. More general versions of
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these routines are included with names beginning with \fBw\fR,
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allowing the user to specify a window. The routines not beginning
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with \fBw\fR affect \fBstdscr\fR.)
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After using routines to manipulate a window, \fBrefresh\fR is called,
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telling \fBncurses\fR to make the user's CRT screen look like
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\fBstdscr\fR. The characters in a window are actually of type
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\fBchtype\fR, (character and attribute data) so that other information
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about the character may also be stored with each character.
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Special windows called \fIpads\fR may also be manipulated. These are windows
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which are not constrained to the size of the screen and whose contents need not
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be completely displayed. See curs_pad(3X) for more information.
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In addition to drawing characters on the screen, video attributes and colors
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may be supported, causing the characters to show up in such modes as
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underlined, in reverse video, or in color on terminals that support such
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display enhancements. Line drawing characters may be specified to be output.
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On input, \fBncurses\fR is also able to translate arrow and function keys that
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transmit escape sequences into single values. The video attributes, line
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drawing characters, and input values use names, defined in \fB<ncurses.h>\fR,
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such as \fBA_REVERSE\fR, \fBACS_HLINE\fR, and \fBKEY_LEFT\fR.
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If the environment variables \fBLINES\fR and \fBCOLUMNS\fR are set, or if the
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program is executing in a window environment, line and column information in
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the environment will override information read by \fIterminfo\fR. This would
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effect a program running in an AT&T 630 layer, for example, where the size of a
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screen is changeable.
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If the environment variable \fBTERMINFO\fR is defined, any program using
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\fBncurses\fR checks for a local terminal definition before checking in the
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standard place. For example, if \fBTERM\fR is set to \fBatt4424\fR, then the
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compiled terminal definition is found in
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\fB\*d/a/att4424\fR.
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(The \fBa\fR is copied from the first letter of \fBatt4424\fR to avoid
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creation of huge directories.) However, if \fBTERMINFO\fR is set to
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\fB$HOME/myterms\fR, \fBncurses\fR first checks
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\fB$HOME/myterms/a/att4424\fR,
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and if that fails, it then checks
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\fB\*d/a/att4424\fR.
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This is useful for developing experimental definitions or when write
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permission in \fB\*d\fR is not available.
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The integer variables \fBLINES\fR and \fBCOLS\fR are defined in
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\fB<ncurses.h>\fR and will be filled in by \fBinitscr\fR with the size of the
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screen. The constants \fBTRUE\fR and \fBFALSE\fR have the values \fB1\fR and
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\fB0\fR, respectively.
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The \fBncurses\fR routines also define the \fBWINDOW *\fR variable \fBcurscr\fR
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which is used for certain low-level operations like clearing and redrawing a
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screen containing garbage. The \fBcurscr\fR can be used in only a few
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routines.
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.SS Routine and Argument Names
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Many \fBncurses\fR routines have two or more versions. The routines prefixed
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with \fBw\fR require a window argument. The routines prefixed with \fBp\fR
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require a pad argument. Those without a prefix generally use \fBstdscr\fR.
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The routines prefixed with \fBmv\fR require a \fIy\fR and \fIx\fR
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coordinate to move to before performing the appropriate action. The
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\fBmv\fR routines imply a call to \fBmove\fR before the call to the
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other routine. The coordinate \fIy\fR always refers to the row (of
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the window), and \fIx\fR always refers to the column. The upper
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left-hand corner is always (0,0), not (1,1).
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The routines prefixed with \fBmvw\fR take both a window argument and
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\fIx\fR and \fIy\fR coordinates. The window argument is always
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specified before the coordinates.
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In each case, \fIwin\fR is the window affected, and \fIpad\fR is the
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pad affected; \fIwin\fR and \fIpad\fR are always pointers to type
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\fBWINDOW\fR.
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Option setting routines require a Boolean flag \fIbf\fR with the value
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\fBTRUE\fR or \fBFALSE\fR; \fIbf\fR is always of type \fBbool\fR. The
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variables \fIch\fR and \fIattrs\fR below are always of type
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\fBchtype\fR. The types \fBWINDOW\fR, \fBSCREEN\fR, \fBbool\fR, and
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\fBchtype\fR are defined in \fB<ncurses.h>\fR. The type \fBTERMINAL\fR
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is defined in \fB<term.h>\fR. All other arguments are integers.
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.SS Routine Name Index
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The following table lists each \fBncurses\fR routine and the name of
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the manual page on which it is described.
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.nf
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\fBncurses\fR Routine Name Manual Page Name
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___________________________________________
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addch curs_addch(3X)
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addchnstr curs_addchstr(3X)
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addchstr curs_addchstr(3X)
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addnstr curs_addstr(3X)
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addstr curs_addstr(3X)
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attroff curs_attr(3X)
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attron curs_attr(3X)
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attrset curs_attr(3X)
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baudrate curs_termattrs(3X)
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beep curs_beep(3X)
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bkgd curs_bkgd(3X)
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bkgdset curs_bkgd(3X)
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border curs_border(3X)
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box curs_border(3X)
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can_change_color curs_color(3X)
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cbreak curs_inopts(3X)
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clear curs_clear(3X)
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clearok curs_outopts(3X)
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clrtobot curs_clear(3X)
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clrtoeol curs_clear(3X)
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color_content curs_color(3X)
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copywin curs_overlay(3X)
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curs_set curs_kernel(3X)
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def_prog_mode curs_kernel(3X)
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def_shell_mode curs_kernel(3X)
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del_curterm curs_terminfo(\*n)
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delay_output curs_util(3X)
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delch curs_delch(3X)
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deleteln curs_deleteln(3X)
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delscreen curs_initscr(3X)
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delwin curs_window(3X)
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derwin curs_window(3X)
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doupdate curs_refresh(3X)
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dupwin curs_window(3X)
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echo curs_inopts(3X)
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echochar curs_addch(3X)
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endwin curs_initscr(3X)
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erase curs_clear(3X)
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erasechar curs_termattrs(3X)
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filter curs_util(3X)
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flash curs_beep(3X)
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flushinp curs_util(3X)
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getbegyx curs_getyx(3X)
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getch curs_getch(3X)
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getmaxyx curs_getyx(3X)
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getparyx curs_getyx(3X)
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getstr curs_getstr(3X)
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getsyx curs_kernel(3X)
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getwin curs_util(3X)
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getyx curs_getyx(3X)
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halfdelay curs_inopts(3X)
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has_colors curs_color(3X)
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has_ic curs_termattrs(3X)
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has_il curs_termattrs(3X)
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hline curs_border(3X)
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idcok curs_outopts(3X)
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idlok curs_outopts(3X)
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immedok curs_outopts(3X)
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inch curs_inch(3X)
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inchnstr curs_inchstr(3X)
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inchstr curs_inchstr(3X)
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init_color curs_color(3X)
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init_pair curs_color(3X)
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initscr curs_initscr(3X)
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innstr curs_instr(3X)
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insch curs_insch(3X)
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insdelln curs_deleteln(3X)
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insertln curs_deleteln(3X)
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insnstr curs_insstr(3X)
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insstr curs_insstr(3X)
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instr curs_instr(3X)
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intrflush curs_inopts(3X)
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is_linetouched curs_touch(3X)
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is_wintouched curs_touch(3X)
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isendwin curs_initscr(3X)
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keyname curs_util(3X)
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keypad curs_inopts(3X)
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killchar curs_termattrs(3X)
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leaveok curs_outopts(3X)
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longname curs_termattrs(3X)
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meta curs_inopts(3X)
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move curs_move(3X)
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mvaddch curs_addch(3X)
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mvaddchnstr curs_addchstr(3X)
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mvaddchstr curs_addchstr(3X)
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mvaddnstr curs_addstr(3X)
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mvaddstr curs_addstr(3X)
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mvcur curs_terminfo(\*n)
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mvdelch curs_delch(3X)
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mvderwin curs_window(3X)
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mvgetch curs_getch(3X)
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mvgetstr curs_getstr(3X)
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mvinch curs_inch(3X)
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mvinchnstr curs_inchstr(3X)
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mvinchstr curs_inchstr(3X)
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mvinnstr curs_instr(3X)
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mvinsch curs_insch(3X)
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mvinsnstr curs_insstr(3X)
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mvinsstr curs_insstr(3X)
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mvinstr curs_instr(3X)
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mvprintw curs_printw(3X)
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mvscanw curs_scanw(3X)
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mvwaddch curs_addch(3X)
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mvwaddchnstr curs_addchstr(3X)
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mvwaddchstr curs_addchstr(3X)
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mvwaddnstr curs_addstr(3X)
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mvwaddstr curs_addstr(3X)
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mvwdelch curs_delch(3X)
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mvwgetch curs_getch(3X)
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mvwgetstr curs_getstr(3X)
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mvwin curs_window(3X)
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mvwinch curs_inch(3X)
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mvwinchnstr curs_inchstr(3X)
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mvwinchstr curs_inchstr(3X)
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mvwinnstr curs_instr(3X)
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mvwinsch curs_insch(3X)
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mvwinsnstr curs_insstr(3X)
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mvwinsstr curs_insstr(3X)
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mvwinstr curs_instr(3X)
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mvwprintw curs_printw(3X)
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mvwscanw curs_scanw(3X)
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napms curs_kernel(3X)
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newpad curs_pad(3X)
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newterm curs_initscr(3X)
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newwin curs_window(3X)
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nl curs_outopts(3X)
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nocbreak curs_inopts(3X)
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nodelay curs_inopts(3X)
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noecho curs_inopts(3X)
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nonl curs_outopts(3X)
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noqiflush curs_inopts(3X)
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noraw curs_inopts(3X)
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notimeout curs_inopts(3X)
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overlay curs_overlay(3X)
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overwrite curs_overlay(3X)
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pair_content curs_color(3X)
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pechochar curs_pad(3X)
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pnoutrefresh curs_pad(3X)
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prefresh curs_pad(3X)
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printw curs_printw(3X)
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putp curs_terminfo(\*n)
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putwin curs_util(3X)
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qiflush curs_inopts(3X)
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raw curs_inopts(3X)
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redrawwin curs_refresh(3X)
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refresh curs_refresh(3X)
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reset_prog_mode curs_kernel(3X)
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reset_shell_mode curs_kernel(3X)
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resetty curs_kernel(3X)
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restartterm curs_terminfo(\*n)
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ripoffline curs_kernel(3X)
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savetty curs_kernel(3X)
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scanw curs_scanw(3X)
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|
scr_dump curs_scr_dump(3X)
|
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scr_init curs_scr_dump(3X)
|
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scr_restore curs_scr_dump(3X)
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scr_set curs_scr_dump(3X)
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scrl curs_scroll(3X)
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scroll curs_scroll(3X)
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scrollok curs_outopts(3X)
|
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|
|
set_curterm curs_terminfo(\*n)
|
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set_term curs_initscr(3X)
|
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|
|
setscrreg curs_outopts(3X)
|
|
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|
|
setsyx curs_kernel(3X)
|
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|
|
setterm curs_terminfo(\*n)
|
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setupterm curs_terminfo(\*n)
|
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|
|
slk_attroff curs_slk(3X)
|
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|
|
slk_attron curs_slk(3X)
|
|
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|
|
slk_attrset curs_slk(3X)
|
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|
|
slk_clear curs_slk(3X)
|
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|
|
slk_init curs_slk(3X)
|
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|
|
slk_label curs_slk(3X)
|
|
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|
|
slk_noutrefresh curs_slk(3X)
|
|
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|
|
slk_refresh curs_slk(3X)
|
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|
|
slk_restore curs_slk(3X)
|
|
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|
|
slk_set curs_slk(3X)
|
|
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|
|
slk_touch curs_slk(3X)
|
|
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|
|
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)
|
|
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|
|
tgetflag curs_termcap(3X)
|
|
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|
|
tgetnum curs_termcap(3X)
|
|
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|
|
tgetstr curs_termcap(3X)
|
|
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|
|
tgoto curs_termcap(3X)
|
|
|
|
|
tigetflag curs_terminfo(\*n)
|
|
|
|
|
tigetnum curs_terminfo(\*n)
|
|
|
|
|
tigetstr curs_terminfo(\*n)
|
|
|
|
|
timeout curs_inopts(3X)
|
|
|
|
|
touchline curs_touch(3X)
|
|
|
|
|
touchwin curs_touch(3X)
|
|
|
|
|
tparm curs_terminfo(\*n)
|
|
|
|
|
tputs curs_termcap(3X)
|
|
|
|
|
tputs curs_terminfo(\*n)
|
|
|
|
|
typeahead curs_inopts(3X)
|
|
|
|
|
unctrl curs_util(3X)
|
|
|
|
|
ungetch curs_getch(3X)
|
|
|
|
|
untouchwin curs_touch(3X)
|
|
|
|
|
use_env curs_util(3X)
|
|
|
|
|
vidattr curs_terminfo(\*n)
|
|
|
|
|
vidputs curs_terminfo(\*n)
|
|
|
|
|
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)
|
|
|
|
|
waddstr curs_addstr(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)
|
|
|
|
|
werase curs_clear(3X)
|
|
|
|
|
wgetch curs_getch(3X)
|
|
|
|
|
wgetnstr curs_getstr(3X)
|
|
|
|
|
wgetstr curs_getstr(3X)
|
|
|
|
|
whline curs_border(3X)
|
|
|
|
|
winch curs_inch(3X)
|
|
|
|
|
winchnstr curs_inchstr(3X)
|
|
|
|
|
winchstr curs_inchstr(3X)
|
|
|
|
|
winnstr curs_instr(3X)
|
|
|
|
|
winsch curs_insch(3X)
|
|
|
|
|
winsdelln curs_deleteln(3X)
|
|
|
|
|
winsertln curs_deleteln(3X)
|
|
|
|
|
winsnstr curs_insstr(3X)
|
|
|
|
|
winsstr curs_insstr(3X)
|
|
|
|
|
winstr curs_instr(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)
|
|
|
|
|
.fi
|
|
|
|
|
.SH RETURN VALUE
|
|
|
|
|
Routines that return an integer return \fBERR\fR upon failure and an
|
|
|
|
|
integer value other than \fBERR\fR upon successful completion, unless
|
|
|
|
|
otherwise noted in the routine descriptions.
|
|
|
|
|
|
|
|
|
|
All macros return the value of the \fBw\fR version, except \fBsetscrreg\fR,
|
|
|
|
|
\fBwsetscrreg\fR, \fBgetyx\fR, \fBgetbegyx\fR, \fBgetmaxyx\fR. The return
|
|
|
|
|
values of \fBsetscrreg\fR, \fBwsetscrreg\fR, \fBgetyx\fR, \fBgetbegyx\fR, and
|
|
|
|
|
\fBgetmaxyx\fR are undefined (\fIi\fR.\fIe\fR., these should not be used as the
|
|
|
|
|
right-hand side of assignment statements).
|
|
|
|
|
|
|
|
|
|
Routines that return pointers return \fBNULL\fR on error.
|
|
|
|
|
.SH SEE ALSO
|
|
|
|
|
\fBterminfo\fR(\*n) and 3X pages whose names begin "curs_" for detailed routine
|
|
|
|
|
descriptions.
|
|
|
|
|
.SH NOTES
|
|
|
|
|
The header file \fB<ncurses.h>\fR automatically includes the header files
|
|
|
|
|
\fB<stdio.h>\fR and \fB<unctrl.h>\fR.
|
|
|
|
|
.\"#
|
|
|
|
|
.\"# The following sets edit modes for GNU EMACS
|
|
|
|
|
.\"# Local Variables:
|
|
|
|
|
.\"# mode:nroff
|
|
|
|
|
.\"# fill-column:79
|
|
|
|
|
.\"# End:
|
