home *** CD-ROM | disk | FTP | other *** search
- Tk 4.0 Release Announcement
- July 1, 1995
-
- John Ousterhout
- Sun Microsystems, Inc.
- john.ousterhout@eng.sun.com
-
- This message is to announce new releases of the Tcl scripting language
- and the Tk toolkit. The new releases are Tcl 7.4 and Tk 4.0; they
- have been in development for about a year and a half and have been in
- beta test for the last six months.
-
- What's new:
- -----------
-
- Tk 4.0 is a major new release with many improvements over Tk 3.6.
- Here is a short list of a few of the most important new features:
- - Tk 4.0 includes a general-purpose mechanism for displaying
- color images, with built-in support for PPM and GIF formats
- and an extension mechanism for adding other formats.
- - The text widget has many new features, including tab stops,
- embedded widgets, horizontal scrolling, and enough new formatting
- options to display HTML level 2.
- - The binding mechanism in Tk 4.0 is much more powerful and composable
- than it was in Tk 3.6.
- - Motif compliance is much better. For example, there is now support
- for keyboard traversal and focus highlights, and the default color
- scheme has changed to gray.
- - Many widgets have been improved. For example, buttons and labels
- can display multi-line justified text and scales can handle real
- values.
- - Color handling has been improved: colors never "run out" anymore.
- There are also several incompatibilities in Tk 4.0, so most scripts for
- Tk 3.6 will need some modification to run under Tk 4.0. For more
- information on what has changed in Tk 4.0 and how to modify Tk 3.6
- scripts to run under Tk 4.0, see the file doc/tk4.0.ps in the distribution.
- A copy of this document is also available at the following URL:
- http://www.smli.com/research/tcl/tk4.0.ps
- The file README in the distribution also has additional information
- on installing the release.
-
- Tcl 7.4 is a minor new release with only a few new features and no
- script-level incompatibilities with Tcl 7.3 (there is one incompatibility
- that affects C extensions). See the README file in the distribution
- for details on the changes and for information on installing the release.
-
- Where to get the new releases:
- ------------------------------
-
- Tk 4.0b4 and Tcl 7.4b4 are currently available from two FTP servers,
- ftp.smli.com (in the directory /pub/tcl) and ftp.cs.berkeley.edu (in
- the directory /ucb/tcl). The releases should appear on the usual
- mirror sites within a few days. The new releases are in the
- files tk4.0.tar.Z and tcl7.4.tar.Z.
-
- For additional information:
- ---------------------------
-
- There is a set of Web pages on Tcl and Tk maintained by the Tcl/Tk
- group at Sun Laboratories. They can be accessed via the following
- URL:
- http://www.smli.com/research/tcl
-