344 lines
8.1 KiB
Plaintext
344 lines
8.1 KiB
Plaintext
.\" Copyright (c) 1980, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)doc.III 8.1 (Berkeley) 6/4/93
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.\"
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.Ds
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.Fd baudrate "" \*m
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.De
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Returns the output baud rate of the terminal.
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This is a system dependent constant
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(defined in
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.b <sys/tty.h>
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on BSD systems,
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which is included by
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.b <curses.h> ).
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.Ds
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.Fd delwin win
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WINDOW *win;
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.De
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Deletes the window from existence.
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All resources are freed for future use by
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.b calloc (3).
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If a window has a
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.Fn subwin
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allocated window inside of it,
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deleting the outer window
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the subwindow is not affected,
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even though this does invalidate it.
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Therefore,
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subwindows should be deleted before their
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outer windows are.
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.Ds
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.Fd endwin
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.De
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Finish up window routines before exit.
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This restores the terminal to the state it was before
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.Fn initscr
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(or
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.Fn gettmode
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and
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.Fn setterm )
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was called.
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It should always be called before exiting.
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It does not exit.
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This is especially useful for resetting tty stats
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when trapping rubouts via
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.b signal (2).
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.Ds
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.Fd erasechar "" \*m
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.De
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Returns the erase character
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for the terminal,
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.i i.e. ,
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the character used by the user to erase a single character from the input.
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.Ds
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.Fd getcap str "" "char *"
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char *str;
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.De
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Return a pointer to the
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.b termcap
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capability described by
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.Vn str
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(see
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.b termcap (5)
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for details).
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.Ds
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.Fd getyx win\*,y\*,x \*m
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WINDOW *win;
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int y\*,x;
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.De
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Puts the current \*y of
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.Vn win
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in the variables
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.Vn y
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and
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.Vn x .
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Since it is a macro,
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not a function,
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you do not pass the address
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of
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.Vn y
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and
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.Vn x .
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.Ds
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.Fd inch "" \*m
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.Fd winch win \*m
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WINDOW *win;
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.De
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Returns the character at the current \*(y
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on the given window.
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This does not make any changes to the window.
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.Ds
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.Fd initscr
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.De
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Initialize the screen routines.
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This must be called before any of the screen routines are used.
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It initializes the terminal-type data and such,
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and without it none of the routines can operate.
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If standard input is not a tty,
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it sets the specifications to the terminal
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whose name is pointed to by
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.Vn Def\*_term
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(initialy "dumb").
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If the boolean
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.Vn My\*_term
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is true,
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.Vn Def\*_term
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is always used.
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If the system supports the
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.b TIOCGWINSZ
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.Fn ioctl "" "" 2
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call,
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it is used to get the number of lines and columns for the terminal,
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otherwise it is taken from the
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.b termcap
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description.
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.Ds
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.Fd killchar "" \*m
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.De
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Returns the line kill character
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for the terminal,
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.i i.e. ,
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the character used by the user to erase an entire line from the input.
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.Ds
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.Fd leaveok win\*,boolf \*m
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WINDOW *win;
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bool boolf;
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.De
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Sets the boolean flag for leaving the cursor after the last change.
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If
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.Vn boolf
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is TRUE,
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the cursor will be left after the last update on the terminal,
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and the current \*y for
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.Vn win
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will be changed accordingly.
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If it is FALSE,
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it will be moved to the current \*y.
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This flag
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(initialy FALSE)
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retains its value until changed by the user.
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.Ds
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.Fd longname termbuf\*,name
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char *termbuf\*,*name;
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.Fd fullname termbuf\*,name
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char *termbuf\*,*name;
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.De
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.Fn longname
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fills in
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.Vn name
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with the long name of the terminal described by the
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.b termcap
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entry in
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.Vn termbuf .
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It is generally of little use,
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but is nice for telling the user in a readable format what terminal
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we think he has.
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This is available in the global variable
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.Vn ttytype .
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.Vn termbuf
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is usually set via the termlib routine
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.Fn tgetent .
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.Fn fullname
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is the same as
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.Fn longname ,
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except that it gives the fullest name given in the entry,
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which can be quite verbose.
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.Ds
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.Fd mvwin win\*,y\*,x
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WINDOW *win;
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int y, x;
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.De
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Move the home position of the window
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.Vn win
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from its current starting coordinates
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to
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.Vn y\*,x ). (
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If that would put part or all of the window
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off the edge of the terminal screen,
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.Fn mvwin
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returns ERR and does not change anything.
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For subwindows,
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.Fn mvwin
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also returns ERR if you attempt to move it off its main window.
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If you move a main window,
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all subwindows are moved along with it.
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.Ds
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.Fd newwin lines\*,cols\*,begin\*_y\*,begin\*_x "" "WINDOW *"
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int lines\*,cols\*,begin\*_y\*,begin\*_x;
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.De
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Create a new window with
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.Vn lines
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lines and
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.Vn cols
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columns starting at position
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.Vn begin\*_y\*,begin\*_x ). (
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If either
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.Vn lines
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or
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.Vn cols
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is 0 (zero),
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that dimension will be set to
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.Vn "LINES \- begin\*_y" ) (
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or
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.Vn "COLS \- begin\*_x" ) (
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respectively.
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Thus, to get a new window of dimensions
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.Vn LINES
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\(mu
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.Vn COLS ,
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use
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.Fn newwin . "" 0\*,0\*,0\*,0
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.Ds
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.Fd nl "" \*m
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.Fd nonl "" \*m
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.De
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Set or unset the terminal to/from nl mode,
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.i i.e. ,
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start/stop the system from mapping
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.b <RETURN>
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to
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.b <LINE-FEED> .
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If the mapping is not done,
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.Fn refresh
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can do more optimization,
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so it is recommended, but not required, to turn it off.
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.Ds
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.Fd scrollok win\*,boolf \*m
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WINDOW *win;
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bool boolf;
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.De
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Set the scroll flag for the given window.
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If
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.Vn boolf
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is FALSE, scrolling is not allowed.
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This is its default setting.
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.Ds
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.Fd touchline win\*,y\*,startx\*,endx
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WINDOW *win;
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int y\*,startx\*,endx;
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.De
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This function performs a function similar to
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.Fn touchwin
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on a single line.
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It marks the first change for the given line
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to be
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.Vn startx ,
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if it is before the current first change mark,
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and
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the last change mark is set to be
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.Vn endx
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if it is currently less than
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.Vn endx .
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.Ds
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.Fd touchoverlap win1\*,win2
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WINDOW *win1, *win2;
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.De
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Touch the window
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.Vn win2
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in the area which overlaps with
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.Vn win1 .
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If they do not overlap,
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no changes are made.
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.Ds
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.Fd touchwin win
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WINDOW *win;
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.De
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Make it appear that the every location on the window
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has been changed.
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This is usually only needed for refreshes with overlapping windows.
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.Ds
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.Fd subwin win\*,lines\*,cols\*,begin\*_y\*,begin\*_x "" "WINDOW *"
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WINDOW *win;
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int lines\*,cols\*,begin\*_y\*,begin\*_x;
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.De
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Create a new window with
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.Vn lines
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lines and
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.Vn cols
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columns starting at position
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.Vn begin\*_y\*,begin\*_x ) (
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inside the window
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.i win .
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This means that any change made to either window
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in the area covered
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by the subwindow will be made on both windows.
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.Vn begin\*_y\*,begin\*_x
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are specified relative to the overall screen,
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not the relative (0\*,0) of
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.Vn win .
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If either
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.Vn lines
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or
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.Vn cols
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is 0 (zero),
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that dimension will be set to
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.Vn "LINES \- begin\*_y" ) (
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or
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.Vn "COLS \- begin\*_x" ) (
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respectively.
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.Ds
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.Fd unctrl ch \*m
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char ch;
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.De
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This is actually a debug function for the library,
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but it is of general usefulness.
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It returns a string which is a representation of
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.Vn ch .
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Control characters become their upper-case equivalents preceded by a "^".
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Other letters stay just as they are.
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To use
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.Fn unctrl ,
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you may have to have
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.b #include\ <unctrl.h>
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in your file.
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