tk4.2 User Commands - tk
NAME
tk - Manipulate Tk internal state
SYNOPSIS
tk option ?arg arg ...?
DESCRIPTION
The tk command provides access to miscellaneous elements of
Tk's internal state. Most of the information manipulated by
this command pertains to the application as a whole, or to a
screen or display, rather than to a particular window. The
command can take any of a number of different forms depend-
ing on the option argument. The legal forms are:
tk appname ?newName?
If newName isn't specified, this command returns the
name of the application (the name that may be used in
send commands to communicate with the application). If
newName is specified, then the name of the application
is changed to newName. If the given name is already in
use, then a suffix of the form `` #2'' or `` #3'' is
appended in order to make the name unique. The
command's result is the name actually chosen. newName
should not start with a capital letter. This will
interfere with option processing, since names starting
with capitals are assumed to be classes; as a result,
Tk may not be able to find some options for the appli-
cation. If sends have been disabled by deleting the
send command, this command will reenable them and
recreate the send command.
KEYWORDS
application name, send