a2p
accept
access
acct
addftinfo
addr2line
adjtime
afmtodit
after
aio_cancel
aio_error
aio_read
aio_return
aio_suspend
aio_waitcomplete
aio_write
alias
aliases
alloc
anvil
append
apply
apropos
ar
array
as
asa
asn1parse
at
atq
atrm
attemptckalloc
attemptckrealloc
authlib
authtest
autopoint
awk
b64decode
b64encode
basename
batch
bc
bdes
bell
bg
bgerror
biff
big5
binary
bind
bindkey
bindtags
bindtextdomain
bio
bitmap
blowfish
bn
bootparams
bootptab
bounce
brandelf
break
breaksw
brk
bsdiff
bsdtar
bsnmpd
bspatch
bthost
btsockstat
buffer
builtin
builtins
bunzip2
button
byacc
bzcat
bzegrep
bzfgrep
bzgrep
bzip2
c2ph
c89
c99
ca
cal
calendar
canvas
cap_mkdb
case
cat
catch
catman
cc
cd
cdcontrol
chdir
checkbutton
checknr
chflags
chfn
chgrp
chio
chkey
chmod
chown
chpass
chroot
chsh
ci
ciphers
ckalloc
ckdist
ckfree
ckrealloc
cksum
cleanup
clear
clipboard
clock
clock_getres
clock_gettime
clock_settime
close
cmp
co
col
colcrt
colldef
colors
colrm
column
comm
command
compile_et
complete
compress
concat
config
connect
console
continue
core
courierlogger
couriertcpd
cp
cpan
cpio
cpp
creat
crl
crontab
crunchgen
crunchide
crypt
crypto
csh
csplit
ctags
ctm
ctm_dequeue
ctm_rmail
ctm_smail
cu
cursor
cursors
cut
cvs
date
dbiprof
dbiproxy
dc
dcgettext
dcngettext
dd
dde
default
defer
deliverquota
des
destroy
devfs
df
dgettext
dgst
dh
dhparam
dialog
diff
diff3
dig
dir
dirent
dirname
dirs
discard
disktab
dngettext
do
domainname
done
dprofpp
dsa
dsaparam
dtmfdecode
du
dup
dup2
eaccess
ec
ecdsa
echo
echotc
ecparam
ed
edit
editrc
ee
egrep
elf
elfdump
elif
else
enc
enc2xs
encoding
end
endif
endsw
engine
enigma
entry
env
envsubst
eof
eqn
err
errno
error
errstr
esac
ethers
euc
eui64
eval
event
evp
ex
exec
execve
exit
expand
export
exports
expr
extattr
extattr_delete_fd
extattr_delete_file
extattr_get_fd
extattr_get_file
extattr_set_fd
extattr_set_file
f77
false
famm
famx
fblocked
fbtab
fc
fchdir
fchflags
fchmod
fchown
fcntl
fconfigure
fcopy
fdescfs
fdformat
fdread
fdwrite
fetch
fg
fgrep
fhopen
fhstat
fhstatfs
fi
file
file2c
fileevent
filename
filetest
find
find2perl
finger
flex
flock
flush
fmt
focus
fold
font
fontedit
for
foreach
fork
format
forward
fpathconf
frame
from
fs
fstab
fstat
fstatfs
fsync
ftp
ftpchroot
ftpusers
ftruncate
futimes
g711conv
gb2312
gb18030
gbk
gcc
gcore
gcov
gdb
gencat
gendsa
genrsa
gensnmptree
getconf
getdents
getdirentries
getdtablesize
getegid
geteuid
getfacl
getfh
getfsstat
getgid
getgroups
getitimer
getlogin
getopt
getopts
getpeername
getpgid
getpgrp
getpid
getppid
getpriority
getresgid
getresuid
getrlimit
getrusage
gets
getsid
getsockname
getsockopt
gettext
gettextize
gettimeofday
gettytab
getuid
glob
global
gmake
goto
gperf
gprof
grab
grep
grid
grn
grodvi
groff
groff_font
groff_out
groff_tmac
grog
grolbp
grolj4
grops
grotty
group
groups
gunzip
gzcat
gzexe
gzip
h2ph
h2xs
hash
hashstat
hd
head
help2man
hesinfo
hexdump
history
host
hostname
hosts
hosts_access
hosts_options
hpftodit
http
hup
i386_get_ioperm
i386_get_ldt
i386_set_ioperm
i386_set_ldt
i386_vm86
iconv
id
ident
idprio
if
ifnames253
ifnames259
image
imapd
incr
indent
indxbib
info
infokey
inode
install
instmodsh
interp
intro
introduction
ioctl
ipcrm
ipcs
ipf
ipftest
ipnat
ippool
ipresend
issetugid
jail
jail_attach
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jobs
join
jot
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kbdmap
kcon
kdestroy
kdump
kenv
kevent
keycap
keylogin
keylogout
keymap
keysyms
kgdb
kill
killall
killpg
kinit
kldfind
kldfirstmod
kldload
kldnext
kldstat
kldsym
kldunload
klist
kpasswd
kqueue
kse
kse_create
kse_exit
kse_release
kse_switchin
kse_thr_interrupt
kse_wakeup
ktrace
label
labelframe
lam
lappend
last
lastcomm
lastlog
lchflags
lchmod
lchown
ld
ldap
ldapadd
ldapcompare
ldapdelete
ldapmodify
ldapmodrdn
ldappasswd
ldapsearch
ldapwhoami
ldd
leave
less
lesskey
lex
lgetfh
lhash
libnetcfg
library
limit
limits
lindex
link
linprocfs
linsert
lint
lio_listio
list
listbox
listen
lj4_font
lkbib
llength
lmtp
ln
load
loadfont
local
locale
locate
lock
lockf
log
logger
login
logins
logname
logout
look
lookbib
lorder
lower
lp
lpq
lpr
lprm
lptest
lrange
lreplace
ls
lsearch
lseek
lset
lsort
lstat
lsvfs
lutimes
lynx
m4
madvise
magic
mail
maildiracl
maildirkw
maildirmake
mailq
mailx
make
makeinfo
makewhatis
man
manpath
master
mc
mcedit
mcview
md2
md4
md5
mdc2
memory
menu
menubar
menubutton
merge
mesg
message
mincore
minherit
minigzip
mkdep
mkdir
mkfifo
mkimapdcert
mklocale
mknod
mkpop3dcert
mkstr
mktemp
mlock
mlockall
mmap
mmroff
modfind
modfnext
modnext
modstat
moduli
more
motd
mount
mprotect
mptable
msdos
msdosfs
msgattrib
msgcat
msgcmp
msgcomm
msgconv
msgen
msgexec
msgfilter
msgfmt
msggrep
msginit
msgmerge
msgs
msgunfmt
msguniq
mskanji
msql2mysql
msync
mt
munlock
munlockall
munmap
mv
myisamchk
myisamlog
myisampack
mysql
mysqlaccess
mysqladmin
mysqlbinlog
mysqlcheck
mysqld
mysqldump
mysqld_multi
mysqld_safe
mysqlhotcopy
mysqlimport
mysqlshow
mysql_config
mysql_fix_privilege_tables
mysql_zap
namespace
nanosleep
nawk
nc
ncal
ncplist
ncplogin
ncplogout
neqn
netconfig
netgroup
netid
netstat
networks
newaliases
newgrp
nex
nfsstat
nfssvc
ngettext
nice
nl
nm
nmount
nohup
nologin
notify
nroff
nseq
nslookup
ntp_adjtime
ntp_gettime
nvi
nview
objcopy
objdump
objformat
ocsp
od
onintr
open
openssl
opieaccess
opieinfo
opiekey
opiekeys
opiepasswd
option
options
oqmgr
pack
package
packagens
pagesize
palette
pam_auth
panedwindow
parray
passwd
paste
patch
pathchk
pathconf
pawd
pax
pbm
pcre
pcreapi
pcrebuild
pcrecallout
pcrecompat
pcrecpp
pcregrep
pcrematching
pcrepartial
pcrepattern
pcreperform
pcreposix
pcreprecompile
pcresample
pcretest
perl
perl56delta
perl58delta
perl561delta
perl570delta
perl571delta
perl572delta
perl573delta
perl581delta
perl582delta
perl583delta
perl584delta
perl585delta
perl586delta
perl587delta
perl588delta
perl5004delta
perl5005delta
perlaix
perlamiga
perlapi
perlapio
perlapollo
perlartistic
perlbeos
perlbook
perlboot
perlbot
perlbs2000
perlbug
perlcall
perlcc
perlce
perlcheat
perlclib
perlcn
perlcompile
perlcygwin
perldata
perldbmfilter
perldebguts
perldebtut
perldebug
perldelta
perldgux
perldiag
perldoc
perldos
perldsc
perlebcdic
perlembed
perlepoc
perlfaq
perlfaq1
perlfaq2
perlfaq3
perlfaq4
perlfaq5
perlfaq6
perlfaq7
perlfaq8
perlfaq9
perlfilter
perlfork
perlform
perlfreebsd
perlfunc
perlglossary
perlgpl
perlguts
perlhack
perlhist
perlhpux
perlhurd
perlintern
perlintro
perliol
perlipc
perlirix
perlivp
perljp
perlko
perllexwarn
perllinux
perllocale
perllol
perlmachten
perlmacos
perlmacosx
perlmint
perlmod
perlmodinstall
perlmodlib
perlmodstyle
perlmpeix
perlnetware
perlnewmod
perlnumber
perlobj
perlop
perlopenbsd
perlopentut
perlos2
perlos390
perlos400
perlothrtut
perlpacktut
perlplan9
perlpod
perlpodspec
perlport
perlqnx
perlre
perlref
perlreftut
perlrequick
perlreref
perlretut
perlrun
perlsec
perlsolaris
perlstyle
perlsub
perlsyn
perlthrtut
perltie
perltoc
perltodo
perltooc
perltoot
perltrap
perltru64
perltw
perlunicode
perluniintro
perlutil
perluts
perlvar
perlvmesa
perlvms
perlvos
perlwin32
perlxs
perlxstut
perror
pfbtops
pftp
pgrep
phones
photo
pic
pickup
piconv
pid
pipe
pkcs7
pkcs8
pkcs12
pkg_add
pkg_check
pkg_create
pkg_delete
pkg_info
pkg_sign
pkg_version
pkill
pl2pm
place
pod2html
pod2latex
pod2man
pod2text
pod2usage
podchecker
podselect
poll
popd
popup
posix_madvise
postalias
postcat
postconf
postdrop
postfix
postkick
postlock
postlog
postmap
postqueue
postsuper
pr
pread
preadv
printcap
printenv
printf
proc
procfs
profil
protocols
prove
proxymap
ps
psed
psroff
pstruct
ptrace
publickey
pushd
puts
pwd
pwrite
pwritev
qmgr
qmqpd
quota
quotactl
radiobutton
raise
rand
ranlib
rcp
rcs
rcsclean
rcsdiff
rcsfile
rcsfreeze
rcsintro
rcsmerge
read
readelf
readlink
readonly
readv
realpath
reboot
recv
recvfrom
recvmsg
red
ree
refer
regexp
registry
regsub
rehash
remote
rename
repeat
replace
req
reset
resolver
resource
return
rev
revoke
rfcomm_sppd
rfork
rhosts
ripemd
ripemd160
rlog
rlogin
rm
rmd160
rmdir
rpc
rpcgen
rs
rsa
rsautl
rsh
rtld
rtprio
rup
ruptime
rusers
rwall
rwho
s2p
safe
sasl
sasldblistusers2
saslpasswd2
sbrk
scache
scale
scan
sched
sched_getparam
sched_getscheduler
sched_get_priority_max
sched_get_priority_min
sched_rr_get_interval
sched_setparam
sched_setscheduler
sched_yield
scon
scp
script
scrollbar
sdiff
sed
seek
select
selection
semctl
semget
semop
send
sendbug
sendfile
sendmail
sendmsg
sendto
services
sess_id
set
setegid
setenv
seteuid
setfacl
setgid
setgroups
setitimer
setlogin
setpgid
setpgrp
setpriority
setregid
setresgid
setresuid
setreuid
setrlimit
setsid
setsockopt
settc
settimeofday
setty
setuid
setvar
sftp
sh
sha
sha1
sha256
shar
shells
shift
shmat
shmctl
shmdt
shmget
showq
shutdown
sigaction
sigaltstack
sigblock
sigmask
sigpause
sigpending
sigprocmask
sigreturn
sigsetmask
sigstack
sigsuspend
sigvec
sigwait
size
slapadd
slapcat
slapd
slapdn
slapindex
slappasswd
slaptest
sleep
slogin
slurpd
smbutil
smime
smtp
smtpd
socket
socketpair
sockstat
soelim
sort
source
spawn
speed
spinbox
spkac
splain
split
squid
squid_ldap_auth
squid_ldap_group
squid_unix_group
sscop
ssh
sshd_config
ssh_config
stab
startslip
stat
statfs
stop
string
strings
strip
stty
su
subst
sum
suspend
swapoff
swapon
switch
symlink
sync
sysarch
syscall
sysconftool
sysconftoolcheck
systat
s_client
s_server
s_time
tabs
tail
talk
tar
tbl
tclsh
tcltest
tclvars
tcopy
tcpdump
tcpslice
tcsh
tee
tell
telltc
telnet
term
termcap
terminfo
test
texindex
texinfo
text
textdomain
tfmtodit
tftp
then
threads
time
tip
tk
tkerror
tkvars
tkwait
tlsmgr
tmac
top
toplevel
touch
tput
tr
trace
trafshow
trap
troff
true
truncate
truss
tset
tsort
tty
ttys
type
tzfile
ui
ul
ulimit
umask
unalias
uname
uncomplete
uncompress
undelete
unexpand
unhash
unifdef
unifdefall
uniq
units
unknown
unlimit
unlink
unmount
unset
unsetenv
until
unvis
update
uplevel
uptime
upvar
usbhidaction
usbhidctl
users
utf8
utimes
utmp
utrace
uudecode
uuencode
uuidgen
vacation
variable
verify
version
vfork
vgrind
vgrindefs
vi
vidcontrol
vidfont
view
virtual
vis
vt220keys
vwait
w
wait
wait3
wait4
waitpid
wall
wc
wget
what
whatis
where
whereis
which
while
who
whoami
whois
window
winfo
wish
wm
write
writev
wtmp
x509
xargs
xgettext
xmlwf
xstr
xsubpp
yacc
yes
ypcat
ypchfn
ypchpass
ypchsh
ypmatch
yppasswd
ypwhich
yyfix
zcat
zcmp
zdiff
zegrep
zfgrep
zforce
zgrep
zmore
znew
_exit
__syscall
 
FreeBSD/Linux/UNIX General Commands Manual
Hypertext Man Pages
options
 
options(n)		     Tk Built-In Commands		    options(n)



NAME
       options - Standard options supported by widgets


DESCRIPTION
       This  manual entry describes the common configuration options supported
       by widgets in the Tk toolkit.  Every widget does not  necessarily  sup-
       port  every option (see the manual entries for individual widgets for a
       list of the standard options supported by that widget), but if a widget
       does  support  an  option  with one of the names listed below, then the
       option has exactly the effect described below.

       In the descriptions below, ``Command-Line Name'' refers to  the	switch
       used in class commands and configure widget commands to set this value.
       For example, if an option's  command-line  switch  is  -foreground  and
       there   exists  a  widget  .a.b.c,  then  the  command  .a.b.c  config-
       ure  -foreground black may be used to specify the value black  for  the
       option in the widget .a.b.c.  Command-line switches may be abbreviated,
       as long as the abbreviation is unambiguous.  ``Database	Name''	refers
       to  the	option's  name	in  the  option  database (e.g.  in .Xdefaults
       files).	``Database Class'' refers to the option's class value  in  the
       option database.  Specifies background color to use when drawing active
       elements.  An element (a widget or portion of a widget)	is  active  if
       the  mouse  cursor  is positioned over the element and pressing a mouse
       button will cause some action to occur.	If strict Motif compliance has
       been requested by setting the tk_strictMotif variable, this option will
       normally be ignored;  the normal background color will be used instead.
       For  some  elements  on Windows and Macintosh systems, the active color
       will only be used while mouse button 1 is  pressed  over  the  element.
       Specifies  a  non-negative value indicating the width of the 3-D border
       drawn around active elements.  See above for definition of active  ele-
       ments.  The value may have any of the forms acceptable to Tk_GetPixels.
       This option is typically only available in widgets displaying more than
       one  element  at  a time (e.g. menus but not buttons).  Specifies fore-
       ground color to use when drawing active elements.  See above for  defi-
       nition  of  active elements.  Specifies how the information in a widget
       (e.g. text or a bitmap) is to be displayed in the widget.  Must be  one
       of  the	values n, ne, e, se, s, sw, w, nw, or center.  For example, nw
       means display the information such that its top-left corner is  at  the
       top-left  corner  of the widget.  Specifies the normal background color
       to use when displaying the widget.  Specifies a bitmap  to  display  in
       the  widget, in any of the forms acceptable to Tk_GetBitmap.  The exact
       way in which the bitmap is displayed may be affected by	other  options
       such as anchor or justify.  Typically, if this option is specified then
       it overrides other options that specify a textual value to  display  in
       the  widget  but  this is controlled by the compound option; the bitmap
       option may be reset to an empty string to re-enable a text display.  In
       widgets	that support both bitmap and image options, image will usually
       override bitmap.  Specifies a non-negative value indicating  the  width
       of  the	3-D border to draw around the outside of the widget (if such a
       border is being drawn;  the relief option typically  determines	this).
       The  value may also be used when drawing 3-D effects in the interior of
       the widget.  The value may have any of the forms acceptable to  Tk_Get-
       Pixels.	 Specifies  the  mouse	cursor to be used for the widget.  The
       value may have any of the forms acceptable to Tk_GetCursor.   Specifies
       if  the widget should display text and bitmaps/images at the same time,
       and if so, where the bitmap/image should  be  placed  relative  to  the
       text.   Must  be  one  of the values none, bottom, top, left, right, or
       center.	For example, the (default) value none specifies that the  bit-
       map  or image should (if defined) be displayed instead of the text, the
       value left specifies that the bitmap or image should  be  displayed  to
       the left of the text, and the value center specifies that the bitmap or
       image should be displayed on top of  the  text.	 Specifies  foreground
       color  to use when drawing a disabled element.  If the option is speci-
       fied as an empty string (which is typically the case on monochrome dis-
       plays),	disabled  elements  are drawn with the normal foreground color
       but they are dimmed by drawing  them  with  a  stippled	fill  pattern.
       Specifies whether or not a selection in the widget should also be the X
       selection.  The value may have any of the forms	accepted  by  Tcl_Get-
       Boolean,  such  as  true, false, 0, 1, yes, or no.  If the selection is
       exported, then selecting in the widget deselects the current  X	selec-
       tion,  selecting outside the widget deselects any widget selection, and
       the widget will respond to selection retrieval requests when it	has  a
       selection.   The  default  is usually for widgets to export selections.
       Specifies the font to use when drawing text  inside  the  widget.   The
       value  may have any of the forms accepted by Tk_GetFont.  Specifies the
       normal foreground color to use when displaying the  widget.   Specifies
       the  color to display in the traversal highlight region when the widget
       does not have the input focus.  Specifies the color to use for the tra-
       versal  highlight rectangle that is drawn around the widget when it has
       the input focus.  Specifies a non-negative value indicating  the  width
       of  the	highlight  rectangle  to draw around the outside of the widget
       when it has the input focus.  The value	may  have  any	of  the  forms
       acceptable  to  Tk_GetPixels.  If the value is zero, no focus highlight
       is drawn around the widget.  Specifies an image to display in the  wid-
       get, which must have been created with the image create command.  Typi-
       cally, if the image option is specified then it overrides other options
       that specify a bitmap or textual value to display in the widget, though
       this is controlled by the compound option;  the	image  option  may  be
       reset to an empty string to re-enable a bitmap or text display.	Speci-
       fies the color to use as background in the area covered by  the	inser-
       tion cursor.  This color will normally override either the normal back-
       ground for the widget (or the selection	background  if	the  insertion
       cursor  happens	to  fall  in the selection).  Specifies a non-negative
       value indicating the width of the 3-D border to draw around the	inser-
       tion cursor.  The value may have any of the forms acceptable to Tk_Get-
       Pixels.	Specifies a non-negative integer value indicating  the	number
       of  milliseconds  the  insertion  cursor  should remain ``off'' in each
       blink cycle.  If this option is zero then the cursor doesn't blink:  it
       is  on all the time.  Specifies a non-negative integer value indicating
       the number of milliseconds the insertion cursor should remain ``on'' in
       each blink cycle.  Specifies a  value indicating the total width of the
       insertion cursor.  The value may have any of the  forms	acceptable  to
       Tk_GetPixels.   If a border has been specified for the insertion cursor
       (using the insertBorderWidth option), the border will be  drawn	inside
       the  width  specified  by  the  insertWidth option.  For widgets with a
       slider that can be dragged to adjust a value, such as scrollbars,  this
       option  determines  when  notifications	are  made about changes in the
       value.  The option's value must be a boolean of the  form  accepted  by
       Tcl_GetBoolean.	 If  the value is false, updates are made continuously
       as the slider is dragged.  If the value is true,  updates  are  delayed
       until  the  mouse  button is released to end the drag;  at that point a
       single notification is made (the value ``jumps'' rather	than  changing
       smoothly).   When  there are multiple lines of text displayed in a wid-
       get, this option determines how the lines  line	up  with  each	other.
       Must be one of left, center, or right.  Left means that the lines' left
       edges all line up, center means that the lines'	centers  are  aligned,
       and  right means that the lines' right edges line up.  For widgets that
       can lay themselves out with either a horizontal	or  vertical  orienta-
       tion,  such  as	scrollbars,  this  option  specifies which orientation
       should be used.	Must be either horizontal or vertical or an  abbrevia-
       tion  of  one  of these.  Specifies a non-negative value indicating how
       much extra space to request for the widget  in  the  X-direction.   The
       value  may have any of the forms acceptable to Tk_GetPixels.  When com-
       puting how large a window it needs, the widget will add this amount  to
       the  width  it  would  normally need (as determined by the width of the
       things displayed in the widget);  if the geometry manager  can  satisfy
       this  request,  the widget will end up with extra internal space to the
       left and/or right of what it displays inside.  Most  widgets  only  use
       this  option  for  padding  text:   if  they are displaying a bitmap or
       image, then they usually ignore padding options.  Specifies a non-nega-
       tive value indicating how much extra space to request for the widget in
       the Y-direction.  The value may have any of  the  forms	acceptable  to
       Tk_GetPixels.   When  computing how large a window it needs, the widget
       will add this amount to the height it would normally  need  (as	deter-
       mined  by  the  height  of the things displayed in the widget);	if the
       geometry manager can satisfy this request, the widget will end up  with
       extra  internal space above and/or below what it displays inside.  Most
       widgets only use this option for padding text:  if they are  displaying
       a bitmap or image, then they usually ignore padding options.  Specifies
       the 3-D effect desired for the widget.  Acceptable values  are  raised,
       sunken,	flat,  ridge,  solid, and groove.  The value indicates how the
       interior of the widget should appear relative  to  its  exterior;   for
       example,  raised means the interior of the widget should appear to pro-
       trude from the screen, relative to the exterior of the widget.	Speci-
       fies  the  number  of  milliseconds  a  button or key must be held down
       before it begins to auto-repeat.  Used, for example,  on  the  up-  and
       down-arrows in scrollbars.  Used in conjunction with repeatDelay:  once
       auto-repeat begins, this option determines the number  of  milliseconds
       between	auto-repeats.  Specifies the background color to use when dis-
       playing selected items.	Specifies a non-negative value indicating  the
       width  of  the 3-D border to draw around selected items.  The value may
       have any of the forms acceptable to Tk_GetPixels.  Specifies the  fore-
       ground  color  to  use  when  displaying  selected  items.  Specifies a
       boolean value that determines whether this widget controls the resizing
       grid  for  its top-level window.  This option is typically used in text
       widgets, where the information in the widget has a  natural  size  (the
       size  of a character) and it makes sense for the window's dimensions to
       be integral numbers of these units.  These natural window sizes form  a
       grid.  If the setGrid option is set to true then the widget will commu-
       nicate with the window manager so  that	when  the  user  interactively
       resizes	the  top-level window that contains the widget, the dimensions
       of the window will be displayed to the user in grid units and the  win-
       dow  size  will	be constrained to integral numbers of grid units.  See
       the section GRIDDED GEOMETRY MANAGEMENT in the wm manual entry for more
       details.   Determines  whether the window accepts the focus during key-
       board traversal (e.g., Tab and Shift-Tab).  Before setting the focus to
       a  window,  the	traversal  scripts  consult the value of the takeFocus
       option.	A value of 0 means that the window should be skipped  entirely
       during  keyboard traversal.  1 means that the window should receive the
       input focus as long as it is viewable (it and all of its ancestors  are
       mapped).   An  empty  value  for  the  option  means that the traversal
       scripts make the decision about whether or not to focus on the  window:
       the  current  algorithm	is to skip the window if it is disabled, if it
       has no key bindings, or if it is not viewable.  If the  value  has  any
       other  form, then the traversal scripts take the value, append the name
       of the window to it (with a separator space), and evaluate the  result-
       ing  string  as a Tcl script.  The script must return 0, 1, or an empty
       string:	a 0 or 1 value specifies whether the window will  receive  the
       input  focus,  and  an  empty  string  results  in the default decision
       described above.  Note: this interpretation of the  option  is  defined
       entirely  by  the  Tcl  scripts	that  implement traversal:  the widget
       implementations ignore the option entirely, so you can change its mean-
       ing if you redefine the keyboard traversal scripts.  Specifies a string
       to be displayed inside the widget.  The way in which the string is dis-
       played  depends on the particular widget and may be determined by other
       options, such as anchor or justify.  Specifies the name of a  variable.
       The  value  of the variable is a text string to be displayed inside the
       widget;	if the variable value changes then the widget  will  automati-
       cally  update  itself  to  reflect the new value.  The way in which the
       string is displayed in the widget depends on the particular widget  and
       may  be determined by other options, such as anchor or justify.	Speci-
       fies the color to use for the rectangular trough areas in widgets  such
       as  scrollbars  and  scales.   This option is ignored for scrollbars on
       Windows (native widget doesn't recognize this option).	Specifies  the
       integer	index  of a character to underline in the widget.  This option
       is used by the default bindings to  implement  keyboard	traversal  for
       menu buttons and menu entries.  0 corresponds to the first character of
       the text displayed in the widget, 1 to the next character, and  so  on.
       For  widgets  that can perform word-wrapping, this option specifies the
       maximum line length.  Lines that would exceed this length  are  wrapped
       onto  the  next	line,  so  that  no  line is longer than the specified
       length.	The value may be specified in any of the  standard  forms  for
       screen  distances.   If	this  value is less than or equal to 0 then no
       wrapping is done:  lines will break only at newline characters  in  the
       text.  Specifies the prefix for a command used to communicate with hor-
       izontal scrollbars.  When the view in the widget's window  changes  (or
       whenever  anything  else  occurs  that  could  change  the display in a
       scrollbar, such as a change in the total  size  of  the	widget's  con-
       tents),	the  widget  will  generate a Tcl command by concatenating the
       scroll command and two numbers.	Each of  the  numbers  is  a  fraction
       between	0  and 1, which indicates a position in the document.  0 indi-
       cates the beginning of the document, 1 indicates the  end,  .333  indi-
       cates  a  position  one	third the way through the document, and so on.
       The first fraction indicates the first information in the document that
       is  visible in the window, and the second fraction indicates the infor-
       mation just after the last portion that is  visible.   The  command  is
       then  passed  to  the  Tcl  interpreter	for  execution.  Typically the
       xScrollCommand option consists of the path name of a  scrollbar	widget
       followed  by  ``set'',  e.g. ``.x.scrollbar set'':  this will cause the
       scrollbar to be updated whenever the view in the  window  changes.   If
       this option is not specified, then no command will be executed.	Speci-
       fies the prefix for a command used to communicate with vertical scroll-
       bars.   This  option  is  treated in the same way as the xScrollCommand
       option, except that it is used for vertical scrollbars and is  provided
       by  widgets  that  support  vertical scrolling.	See the description of
       xScrollCommand for details on how this option is used.


SEE ALSO
       colors, cursors, font


KEYWORDS
       class, name, standard option, switch



Tk				      4.4			    options(n)
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