Editing Twm (section)

==Usage==
[[Image:twm-screenshot-20050401.png|frame|twm with [[X.Org Foundation#Fields of activity|xcalc]] and [[xterm]], the xterm window being in [[focus (computing)|focus]]. [[X.Org Foundation#Fields of activity|xclock]] is iconified.]]
[[Image:twm menu.png|thumb|twm menu]]
[[File:TWM without configuration.ogv|thumb|Twm Xsession running on [[Debian]] 7 [[Linux]]]]

twm's interface is different from modern common X window managers and [[desktop environment]]s many of which tend to work similarly to the [[Apple Macintosh]] or [[Microsoft Windows]]. New users often find twm difficult without reading the [[Man page|manual]] page.<ref name="manpage">[http://www.x.org/releases/X11R7.6/doc/man/man1/twm.1.xhtml twm&nbsp;— Tab Window Manager for the X Window System]&nbsp;— [[UNIX manual|man]] page, X11 release 7.6 ([[X.Org Foundation|X.org]])</ref>

In the default configuration of twm, the title bar has two buttons:
*''Resize button'' (nested squares): the user clicks here, drags the mouse pointer to the edge to be moved, then releases when the window is the desired size.
*''Iconify button'' (circle): reduces the window to an icon.

There is no title bar button to close a window. A left click on the desktop brings up a menu, which includes an option to delete (close) a window. Window close functionality for the titlebar can be configured in the <code>.twmrc</code> file:
:See {{Wikibooks-inline|Guide to X11/Window Managers|twm#Closing program windows in twm|Closing program windows in twm}}.

A ''left click'' on the title bar brings the window to the top of the window stack; a ''middle click'' moves the window; a ''right click'' sends the window to the bottom of the window stack.

Window [[focus (computing)|focus]] follows the [[Mouse (computing)|mouse]] pointer (point-to-focus), rather than being on whichever window was clicked last ([[click-to-focus]]).

When a new window is created, a 3×3 grid is displayed following the mouse pointer, waiting for the user to click where the window should appear&nbsp;— left-click to appear in that position with that size, middle-click to resize the window before its creation, right-click to appear at that position but long enough vertically to reach the bottom of the screen.

Note that any of the above may be changed with appropriate changes to the configuration file. (The system file is typically {{mono|/etc/X11/twm/system.twmrc}} and the user file is typically {{mono|~/.twmrc}} .)<ref name="manpage"/>