Editing CTWM (section)

{{Short description|Unix window manager}}
{{Infobox software
| name = CTWM
| screenshot = CTWM 3.7 Screenshot.png
| caption = CTWM 3.7 screenshot captured on [[Debian]] 7 [[Linux]]
| released = {{Start date and age|1992|05}}
| latest release version = {{wikidata|property|preferred|references|edit|Q4035698|P348|P548=Q2804309}}
| latest release date = {{wikidata|qualifier|preferred|single|Q4035698|P348|P548=Q2804309|P577}}
| latest preview version = {{wikidata|property|preferred|references|edit|Q4035698|P348|P548=Q51930650}}
| latest preview date = {{wikidata|qualifier|preferred|single|Q4035698|P348|P548=Q51930650|P577}}
| programming language = [[C (programming language)|C]]
| genre = [[X window manager|Window manager]]
| license = X11-X11R5<ref>{{cite web|url=https://enterprise.dejacode.com/licenses/public/x11-x11r5/|title=Licenses: X11-R5 (x11-x11r5)}}</ref><ref name="copyright" /><br />MIT-CMU<ref>{{cite web|url=https://spdx.org/licenses/MIT-CMU.html|title=CMU License}}</ref><ref name="copyright">{{cite web |url=https://bazaar.launchpad.net/~ctwm/ctwm/trunk/view/head:/COPYRIGHT |title = ~ctwm/ctwm/trunk : contents of COPYRIGHT at revision 691}}</ref>
| repo = {{URL|https://code.launchpad.net/~ctwm/ctwm/trunk}}
| website = {{URL|https://www.ctwm.org}}
}}

In [[Unix]] [[computing]], '''CTWM''' ('''Claude's Tab Window Manager''') is a [[stacking window manager]] for the [[X Window System]] in the [[twm]] family of window managers. CTWM was created in 1992 by Claude Lecommandeur of [[École Polytechnique Fédérale de Lausanne|EPFL]] from the source code for [[twm]], which he extended to allow for [[virtual desktop]]s ("workspaces" in CTWM's terminology),<ref>{{Cite web |title=Modernizing ctwm |url=https://troubleshooters.com/linux/ctwm/modernize.htm |access-date=2024-05-06 |website=troubleshooters.com}}</ref> an innovative feature at the time for a window manager; his inspiration was [[Visual User Environment|vuewm]], an early Unix [[desktop environment]].<ref>{{Cite web |last=Anon. |title=CTWM Home |url=https://www.ctwm.org/index.html |access-date=2024-06-02 |website=Claude's Tab Window Manager}}</ref> Later additions and modifications have since changed the original twm codebase significantly,<ref>{{Citation |last=Cherven |first=Jamie |title=jcherven/ctwm |date=2021-04-09 |url=https://github.com/jcherven/ctwm |access-date=2024-05-28}}</ref> providing for a highly customizable user interface. The project is currently (2024) maintained by Matthew Fuller.<ref>{{Cite web |last=Anon. |date= |title=CTWM Home |url=https://www.ctwm.org/index.html |access-date=2024-04-18 |website=Claude's Tab Window Manager}}</ref> CTWM has been the default graphical user interface for [[NetBSD]]<ref>{{Cite web |last=Proven |first=Liam |date=2024-04-17 |title=NetBSD turns 30 and releases version 10 |url=https://www.theregister.com/2024/04/17/30yo_netbsd_releases_v10/ |access-date=2024-04-18 |website=www.theregister.com |language=en}}</ref> since 2020 (release 9.1), replacing twm.<ref>{{Cite web |last=Plura |first=Michael |date=2020-10-26 |title=NetBSD 9.1 mit mehr ZFS und "neuem" Fenstermanager CTWM |url=https://www.heise.de/news/NetBSD-9-1-mit-mehr-ZFS-und-neuem-Fenstermanager-CTWM-4938633.html |access-date=2024-04-18 |website=heise online |language=de}}</ref>