Tclx documents infox the following way:
infox option
Return information about Extended Tcl, or the current
application. The following infox command options are
available:
version
Return the version number of Extended Tcl. The version
number for Extended Tcl is generated by combining the
base version of the standard Tcl code with another number
indicating the version of Extended Tcl being used.
patchlevel
Return the patchlevel for Extended Tcl.
have_fchown
Return 1 if the fchown system call is available. This
supports the -fileid option on the chown and chgrp
commands.
have_fchmod
Return 1 if the fchmod system call is available. This
supports the -fileid option on the chmod command.
have_flock
Return 1 if the flock command defined, 0 if it is not
available.
have_fsync
Return 1 if the fsync system call is available and the
sync command will sync individual files. 0 if it is not
available and the sync command will always sync all file
buffers.
have_ftruncate
Return 1 if the ftruncate or chsize system call is
available. If it is, the ftruncate command -fileid option
maybe used.
have_msgcats
Return 1 if XPG message catalogs are available, 0 if
they are not. The catgets is designed to continue to
function without message catalogs, always returning the
default string.
have_posix_signals
Return 1 if Posix signals are available (block and
unblock options available for the signal command). 0 is
returned if Posix signals are not available.
have_signal_restart
Return 1 if restartable signals are available (-restart
option available for the signal command). 0 is returned
if restartable signals are not available.
have_truncate
Return 1 if the truncate system call is available. If it
is, the ftruncate command may truncate by file path.
have_waitpid
Return 1 if the waitpid system call is available and
the wait command has full functionality. 0 if the wait
command has limited functionality.
appname
Return the symbolic application name of the current
application linked with the Extended Tcl library. The C
variable tclAppName must be set by the application to
return an application specific value for this variable.
applongname
Return a natural language name for the current
application. The C variable tclLongAppName must be set by
the application to return an application specific value
for this variable.
appversion
Return the version number for the current application.
The C variable tclAppVersion must be set by the application to
return an application-specific value for this variable.
apppatchlevel
Return the patchlevel for the current application.
The C variable tclAppPatchlevel must be set by the
application to return an application-specific value for
this variable.
Category Command, a part of Tclx