NetBSD/lib/libcurses/curses.3

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.\"     @(#)curses.3	8.1 (Berkeley) 6/4/93
.\"
.Dd March 11, 1999
.Dt CURSES 3
.Os
.Sh NAME
.Nm curses
.Nd screen functions with
.Dq optimal
cursor motion
.Sh LIBRARY
.Lb libcurses
.Sh SYNOPSIS
.Nm cc
.Op Ar flags
.Ar files
.Fl lcurses ltermcap
.Op Ar libraries
.Sh DESCRIPTION
These routines give the user a method of updating screens with reasonable
optimization.  They keep an image of the current screen,
and the user sets up an image of a new one.  Then the
.Fn refresh
tells the routines to make the current screen look like the new one.
In order to initialize the routines, the routine
.Fn initscr
must be called before any of the other routines that deal with windows and
screens are used.  The routine
.Fn endwin
should be called before exiting.  The routine
.Fn start_color must be called before any of the other routines that deal
with color are used.
.Sh SEE ALSO
.Xr ioctl 2 ,
.Xr getenv 3 ,
.Xr tty 4 ,
.Xr termcap 5
.Rs
.%T Screen Updating and Cursor Movement Optimization: A Library Package
.%A Ken Arnold
.Re
.Sh AUTHOR
.An Ken Arnold
.Sh FUNCTIONS
.Bl -column "subwin(win,lines,cols,begin_y,begin_x)"
.It addch(ch)	add a character to
.Em stdscr
.It addstr(str)	add a string to
.Em stdscr
.It addnstr(str,len)	add no more than len chars of string to
.Em stdscr
.It attron(attribute)	turn on attribute modes
.It attroff(attribute)	turn off attribute modes
.It attrset(attribute)	set attribute modes
.It beep()	sound the terminal bell
.It bkgd(ch)	set background rendition for
.Em stdscr
and applies this rendition to
.Em stdscr
.It bkgdset(ch)	set background rendition for
.Em stdscr
.It border(ls,rs,ts,bs,tl,tr,bl,br)	draw a border around
.Em stdscr
.It box(win,vert,hor)	draw a box around a window
.It can_change_colors()	check if terminal can change colors
.It cbreak()	set cbreak mode
.It clear()	clear
.Em stdscr
.It clearok(win,boolf)	set clear flag for
.Em win
.It clrtobot()	clear to bottom on
.Em stdscr
.It clrtoeol()	clear to end of line on
.Em stdscr
.It color_content(c, r, g, b)	get rgb values of color
.It def_prog_mode()	define program (in curses) terminal modes
.It def_shell_mode()	define shell (not in curses) terminal modes
.It delch()	delete a character
.It deleteln()	delete a line
.It delwin(win)	delete
.Em win
.It echo()	set echo mode
.It endwin()	end window modes
.It erase()	erase
.Em stdscr
.It flash()	flash the terminal screen
.It flushinp()	flush terminal input
.It flushok(win,boolf)	set flush-on-refresh flag for
.Em win
.It fullname(termbuf,name) get full name from
.Em termbuf
.It getbkgd(win)	get background rendition for
.Em win
.It getch()	get a char through
.Em stdscr
.It getcap(name)	get terminal capability
.Em name
.It getstr(str)	get a string through
.Em stdscr
.It gettmode()	get tty modes
.It getyx(win,y,x)	get (y,x) co-ordinates
.It has_colors()	check if terminal has colors
.It idlok(win,boolf)	set insert/deleteln flags for
.Em win
.It inch()	get char at current (y,x) co-ordinates
.It init_color(c, r, g, b)	set rgb values of color
.It init_pair(p, f, b)	set foreground and background colors of pair
.It initscr()	initialize screens
.It insch(c)	insert a char
.It insdelln(n)	insert/delete n lines on
.Em stdstr
.It insertln()	insert a line
.It intrflush(win,boolf)	set flush on interrupt terminal mode
.It isendwin()	check if endwin() or wrefresh() was called latest
.It keypad(win,boolf)	set keypad flag for
.Em win
.It leaveok(win,boolf)	set leave flag for
.Em win
.It longname(termbuf,name)	get long name from
.Em termbuf
.It move(y,x)	move to (y,x) on
.Em stdscr
.It mvcur(lasty,lastx,newy,newx)	actually move cursor
.It newwin(lines,cols,begin_y,begin_x)\ 	create a new window
.It nl()	set newline mapping
.It nocbreak()	unset cbreak mode
.It nodelay(win,boolf)	unset blocking reads for
.Em win
.It noecho()	unset echo mode
.It nonl()	unset newline mapping
.It noraw()	unset raw mode
.It notimeout(win, boolf)	unset infinite timeout on keypad assembly for
.Em win
.It overlay(win1,win2)	overlay win1 on win2
.It overwrite(win1,win2)	overwrite win1 on top of win2
.It pair_content(p, r, g, b)	get foreground and background colors of pair
.It printw(fmt,arg1,arg2,...)	printf on
.Em stdscr
.It raw()	set raw mode
.It refresh()	make current screen look like
.Em stdscr
.It reset_prog_mode()	restore program (in curses) terminal modes
.It reset_shell_mode()	restore shell (not in curses) terminal modes
.It resetty()	reset tty flags to stored value
.It savetty()	stored current tty flags
.It scanw(fmt,arg1,arg2,...)	scanf through
.Em stdscr
.It scrl(n)	scroll
.Em stdscr
n lines
.It scroll(win)	scroll
.Em win
one line
.It scrollok(win,boolf)	set scroll flag for
.Em win
.It setterm(name)	set term variables for name
.It standend()	end standout mode
.It standout()	start standout mode
.It start_color()	initialise color
.It subwin(win,lines,cols,begin_y,begin_x)\ 	create a subwindow
.It timeout(delay)	set blocking or non-blocking read for
.Em stdscr
.It touchline(win,y,sx,ex)	mark line
.Em y
.Em sx
through
.Em sy
as changed
.It touchoverlap(win1,win2)	mark overlap of
.Em win1
on
.Em win2
as changed
.It touchwin(win)	\*(lqchange\*(rq all of
.Em win
.It unctrl(ch)	printable version of
.Em ch
.It underend()	end underscore mode
.It underscore()	start underscore mode
.It waddch(win,ch)	add char to
.Em win
.It waddstr(win,str)	add string to
.Em win
.It wattron(attribute)	turn on attribute modes for
.Em win
.It wattroff(attribute)	turn off attribute modes for
.Em win
.It wattrset(attribute)	set attribute modes for
.Em win
.It wbkgd(win, ch)	set background rendition for
.Em win and apply this rendition to
.Em win
.It wbkgdset(win, ch)	set background rendition for
.Em win
.It wborder(win,ls,rs,ts,bs,tl,tr,bl,br)	draw a border around
.Em win
.It wclear(win)	clear
.Em win
.It wclrtobot(win)	clear to bottom of
.Em win
.It wclrtoeol(win)	clear to end of line on
.Em win
.It wdelch(win)	delete char from
.Em win
.It wdeleteln(win)	delete line from
.Em win
.It werase(win)	erase
.Em win
.It wgetch(win)	get a char through
.Em win
.It wgetstr(win,str)	get a string through
.Em win
.It winch(win)	get char at current (y,x) in
.Em win
.It winsch(win,c)	insert char into
.Em win
.It winsdelln(win,n)	insert/delete n lines on
.Em win
.It winsertln(win)	insert line into
.Em win
.It wmove(win,y,x)	set current (y,x) co-ordinates on
.Em win
.It wprintw(win,fmt,arg1,arg2,...)\ 	printf on
.Em win
.It wrefresh(win)	make screen look like
.Em win
.It wscanw(win,fmt,arg1,arg2,...)\ 	scanf through
.Em win
.It wscrl(win,n)	scroll
.Em win
n lines
.It wstandend(win)	end standout mode on
.Em win
.It wstandout(win)	start standout mode on
.Em win
.It wtimeout(win,delay)	set blocking or non-blocking read for
.Em win
.It wunderend(win)	end underscore mode on
.Em win
.It wunderscore(win)	start underscore mode on
.Em win
.El
.Sh HISTORY
The
.Nm
package appeared in
.Bx 4.0 .