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
jobid
jobs
join
jot
kbdcontrol
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
scrollbar
 
scrollbar(n)		     Tk Built-In Commands		  scrollbar(n)



NAME
       scrollbar - Create and manipulate scrollbar widgets

SYNOPSIS
       scrollbar     pathName	 ?options?     -activebackground   -highlight-
       color	 -repeatdelay -background    -highlightthickness -repeatinter-
       val   -borderwidth   -jump     -takefocus  -cursor   -orient   -trough-
       color -highlightbackground     -relief

WIDGET-SPECIFIC OPTIONS
       Specifies the relief to use when displaying the element that is active,
       if  any.   Elements  other than the active element are always displayed
       with a raised relief.  Specifies the prefix of a Tcl command to	invoke
       to change the view in the widget associated with the scrollbar.	When a
       user requests a view change by manipulating the scrollbar, a  Tcl  com-
       mand  is  invoked.  The actual command consists of this option followed
       by additional information  as  described  later.   This	option	almost
       always has a value such as .t xview or .t yview, consisting of the name
       of a widget and either  xview  (if  the	scrollbar  is  for  horizontal
       scrolling)  or  yview (for vertical scrolling).	All scrollable widgets
       have xview and yview commands that take exactly	the  additional  argu-
       ments  appended	by  the  scrollbar  as described in SCROLLING COMMANDS
       below.  Specifies the width of borders drawn around the	internal  ele-
       ments  of the scrollbar (the two arrows and the slider).  The value may
       have any of the forms acceptable to Tk_GetPixels.   If  this  value  is
       less  than  zero,  the  value  of the borderWidth option is used in its
       place.  Specifies the desired narrow dimension of the scrollbar window,
       not including 3-D border, if any.  For vertical scrollbars this will be
       the width and for horizontal scrollbars this will be the  height.   The
       value may have any of the forms acceptable to Tk_GetPixels.


DESCRIPTION
       The scrollbar command creates a new window (given by the pathName argu-
       ment) and makes	it  into  a  scrollbar	widget.   Additional  options,
       described  above, may be specified on the command line or in the option
       database to configure aspects of the scrollbar such as its colors, ori-
       entation, and relief.  The scrollbar command returns its pathName argu-
       ment.  At the time this command is invoked, there must not exist a win-
       dow named pathName, but pathName's parent must exist.

       A  scrollbar  is  a widget that displays two arrows, one at each end of
       the scrollbar, and a slider in the middle portion of the scrollbar.  It
       provides information about what is visible in an associated window that
       displays a document of some sort (such as a  file  being  edited  or  a
       drawing).   The	position and size of the slider indicate which portion
       of the document is visible in the associated window.  For  example,  if
       the  slider  in	a  vertical scrollbar covers the top third of the area
       between the two arrows, it means that the  associated  window  displays
       the top third of its document.

       Scrollbars  can	be used to adjust the view in the associated window by
       clicking or dragging with the mouse.  See the  BINDINGS	section  below
       for details.

ELEMENTS
       A scrollbar displays five elements, which are referred to in the widget
       commands for the scrollbar:

       arrow1	 The top or left arrow in the scrollbar.

       trough1	 The region between the slider and arrow1.

       slider	 The rectangle that indicates what is visible in  the  associ-
		 ated widget.

       trough2	 The region between the slider and arrow2.

       arrow2	 The bottom or right arrow in the scrollbar.

WIDGET COMMAND
       The scrollbar command creates a new Tcl command whose name is pathName.
       This command may be used to invoke various operations  on  the  widget.
       It  has	the  following	general  form:	pathName  option ?arg arg ...?
       Option and the args determine the exact behavior of the	command.   The
       following commands are possible for scrollbar widgets:

       pathName activate ?element?
	      Marks  the  element indicated by element as active, which causes
	      it to be displayed as  specified	by  the  activeBackground  and
	      activeRelief  options.   The  only  element values understood by
	      this command are arrow1, slider, or arrow2.  If any other  value
	      is  specified  then  no element of the scrollbar will be active.
	      If element is not specified, the command returns the name of the
	      element  that is currently active, or an empty string if no ele-
	      ment is active.

       pathName cget option
	      Returns the current value of the configuration option  given  by
	      option.	Option	may  have  any	of  the values accepted by the
	      scrollbar command.

       pathName configure ?option? ?value option value ...?
	      Query or modify the configuration options of the widget.	If  no
	      option is specified, returns a list describing all of the avail-
	      able options for pathName (see Tk_ConfigureInfo for  information
	      on  the  format  of  this list).	If option is specified with no
	      value, then the command returns a list describing the one  named
	      option (this list will be identical to the corresponding sublist
	      of the value returned if no option is  specified).   If  one  or
	      more option-value pairs are specified, then the command modifies
	      the given widget option(s) to have the given value(s);  in  this
	      case  the  command returns an empty string.  Option may have any
	      of the values accepted by the scrollbar command.

       pathName delta deltaX deltaY
	      Returns a real number indicating the fractional  change  in  the
	      scrollbar  setting  that corresponds to a given change in slider
	      position.  For example, if  the  scrollbar  is  horizontal,  the
	      result  indicates  how much the scrollbar setting must change to
	      move the slider deltaX pixels to the right (deltaY is ignored in
	      this  case).  If the scrollbar is vertical, the result indicates
	      how much the scrollbar setting must change to  move  the	slider
	      deltaY pixels down.  The arguments and the result may be zero or
	      negative.

       pathName fraction x y
	      Returns a real number between 0 and 1 indicating where the point
	      given  by x and y lies in the trough area of the scrollbar.  The
	      value 0 corresponds to the top or left of the trough, the  value
	      1  corresponds  to  the  bottom or right, 0.5 corresponds to the
	      middle, and so on.  X and y must be pixel  coordinates  relative
	      to  the  scrollbar  widget.  If x and y refer to a point outside
	      the trough, the closest point in the trough is used.

       pathName get
	      Returns the scrollbar settings in the form of a list whose  ele-
	      ments are the arguments to the most recent set widget command.

       pathName identify x y
	      Returns the name of the element under the point given by x and y
	      (such as arrow1), or an empty string if the point does  not  lie
	      in  any element of the scrollbar.  X and y must be pixel coordi-
	      nates relative to the scrollbar widget.

       pathName set first last
	      This command is invoked by the scrollbar's associated widget  to
	      tell  the  scrollbar  about the current view in the widget.  The
	      command takes two arguments, each of which is  a	real  fraction
	      between  0 and 1.  The fractions describe the range of the docu-
	      ment that is visible in the associated widget.  For example,  if
	      first  is  0.2  and last is 0.4, it means that the first part of
	      the document visible in the window is 20% of the way through the
	      document, and the last visible part is 40% of the way through.

SCROLLING COMMANDS
       When the user interacts with the scrollbar, for example by dragging the
       slider, the scrollbar notifies  the  associated	widget	that  it  must
       change  its view.  The scrollbar makes the notification by evaluating a
       Tcl command generated from the scrollbar's -command option.   The  com-
       mand  may take any of the following forms.  In each case, prefix is the
       contents of the -command option, which usually has a form like .t yview

       prefix moveto fraction
	      Fraction	is  a  real number between 0 and 1.  The widget should
	      adjust its view so that the point given by fraction  appears  at
	      the  beginning of the widget.  If fraction is 0 it refers to the
	      beginning of the document.  1.0 refers to the end of  the  docu-
	      ment,  0.333  refers to a point one-third of the way through the
	      document, and so on.

       prefix scroll number units
	      The widget should adjust its view by number  units.   The  units
	      are  defined in whatever way makes sense for the widget, such as
	      characters or lines in a text widget.  Number is either 1, which
	      means  one unit should scroll off the top or left of the window,
	      or -1, which means that one unit should scroll off the bottom or
	      right of the window.

       prefix scroll number pages
	      The  widget should adjust its view by number pages.  It is up to
	      the widget to define the meaning of a  page;   typically	it  is
	      slightly	less  than what fits in the window, so that there is a
	      slight overlap between the old and new views.  Number is	either
	      1, which means the next page should become visible, or -1, which
	      means that the previous page should become visible.

OLD COMMAND SYNTAX
       In versions of Tk before 4.0, the set and get widget  commands  used  a
       different  form.  This form is still supported for backward compatibil-
       ity, but it is deprecated.  In the old command syntax, the  set	widget
       command has the following form:

       pathName set totalUnits windowUnits firstUnit lastUnit
	      In  this	form the arguments are all integers.  TotalUnits gives
	      the total size of the object being displayed in  the  associated
	      widget.	The meaning of one unit depends on the associated wid-
	      get;  for example, in a text editor widget  units  might	corre-
	      spond  to lines of text.	WindowUnits indicates the total number
	      of units that can fit in the  associated	window	at  one  time.
	      FirstUnit  and  lastUnit	give the indices of the first and last
	      units currently visible in the associated  window  (zero	corre-
	      sponds to the first unit of the object).

       Under  the  old	syntax	the  get widget command returns a list of four
       integers, consisting of the  totalUnits,  windowUnits,  firstUnit,  and
       lastUnit values from the last set widget command.

       The  commands  generated  by scrollbars also have a different form when
       the old syntax is being used:

       prefix unit
	      Unit is an integer that indicates what should appear at the  top
	      or  left	of  the  associated  widget's window.  It has the same
	      meaning as the firstUnit and lastUnit arguments to the set  wid-
	      get command.

       The most recent set widget command determines whether or not to use the
       old syntax.  If it is given two real arguments then the new syntax will
       be  used  in the future, and if it is given four integer arguments then
       the old syntax will be used.

BINDINGS
       Tk automatically creates class bindings for scrollbars that  give  them
       the  following default behavior.  If the behavior is different for ver-
       tical and horizontal scrollbars, the horizontal behavior  is  described
       in parentheses.

       [1]    Pressing	button 1 over arrow1 causes the view in the associated
	      widget to shift up (left) by  one  unit  so  that  the  document
	      appears  to  move  down (right) one unit.  If the button is held
	      down, the action auto-repeats.

       [2]    Pressing button 1 over trough1 causes the view in the associated
	      widget  to shift up (left) by one screenful so that the document
	      appears to move down (right) one screenful.  If  the  button  is
	      held down, the action auto-repeats.

       [3]    Pressing	button	1 over the slider and dragging causes the view
	      to drag with the slider.	If the jump option is true,  then  the
	      view  doesn't  drag along with the slider;  it changes only when
	      the mouse button is released.

       [4]    Pressing button 1 over trough2 causes the view in the associated
	      widget  to shift down (right) by one screenful so that the docu-
	      ment appears to move up (left) one screenful.  If the button  is
	      held down, the action auto-repeats.

       [5]    Pressing	button 1 over arrow2 causes the view in the associated
	      widget to shift down (right) by one unit so  that  the  document
	      appears to move up (left) one unit.  If the button is held down,
	      the action auto-repeats.

       [6]    If button 2 is pressed over the trough or the  slider,  it  sets
	      the  view  to  correspond  to  the mouse position;  dragging the
	      mouse with button 2 down causes the view to drag with the mouse.
	      If  button  2  is  pressed over one of the arrows, it causes the
	      same behavior as pressing button 1.

       [7]    If button 1 is pressed with the Control key down,  then  if  the
	      mouse is over arrow1 or trough1 the view changes to the very top
	      (left) of the document;  if the mouse is over arrow2 or  trough2
	      the view changes to the very bottom (right) of the document;  if
	      the mouse is anywhere else then the button press has no  effect.

       [8]    In vertical scrollbars the Up and Down keys have the same behav-
	      ior as mouse clicks over arrow1 and  arrow2,  respectively.   In
	      horizontal scrollbars these keys have no effect.

       [9]    In vertical scrollbars Control-Up and Control-Down have the same
	      behavior as mouse clicks over trough1 and trough2, respectively.
	      In horizontal scrollbars these keys have no effect.

       [10]   In  horizontal  scrollbars  the  Up  and Down keys have the same
	      behavior as mouse clicks over arrow1 and	arrow2,  respectively.
	      In vertical scrollbars these keys have no effect.

       [11]   In  horizontal  scrollbars  Control-Up and Control-Down have the
	      same behavior as mouse clicks over trough1 and trough2,  respec-
	      tively.  In vertical scrollbars these keys have no effect.

       [12]   The  Prior  and Next keys have the same behavior as mouse clicks
	      over trough1 and trough2, respectively.

       [13]   The Home key adjusts the view to the top (left edge) of the doc-
	      ument.

       [14]   The  End	key adjusts the view to the bottom (right edge) of the
	      document.

EXAMPLE
       Create a window with a scrollable text widget: toplevel .tl text  .tl.t
       -yscrollcommand {.tl.s set} scrollbar .tl.s -command {.tl.t yview} grid
       .tl.t .tl.s -sticky nsew grid columnconfigure .tl 0 -weight 1 grid row-
       configure .tl 0 -weight 1


KEYWORDS
       scrollbar, widget



Tk				      4.1			  scrollbar(n)
=1973
+324
(190)