@c This is part of the Emacs manual.
-@c Copyright (C) 1985, 86, 87, 93, 94, 95, 97, 99, 2000, 2001, 2004
-@c Free Software Foundation, Inc.
+@c Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1997, 1999, 2000,
+@c 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
@c See file emacs.texi for copying conditions.
@node Frames, International, Windows, Top
-@chapter Frames and X Windows
+@chapter Frames and Graphical Displays
@cindex frames
- When using the X Window System, you can create multiple windows at the
-X level in a single Emacs session. Each X window that belongs to Emacs
-displays a @dfn{frame} which can contain one or several Emacs windows.
-A frame initially contains a single general-purpose Emacs window which
-you can subdivide vertically or horizontally into smaller windows. A
-frame normally contains its own echo area and minibuffer, but you can
-make frames that don't have these---they use the echo area and
-minibuffer of another frame.
+ When using a graphical display, you can create multiple windows at
+the system in a single Emacs session. Each system-level window that
+belongs to Emacs displays a @dfn{frame} which can contain one or
+several Emacs windows. A frame initially contains a single
+general-purpose Emacs window which you can subdivide vertically or
+horizontally into smaller windows. A frame normally contains its own
+echo area and minibuffer, but you can make frames that don't have
+these---they use the echo area and minibuffer of another frame.
- Editing you do in one frame also affects the other frames. For
+ To avoid confusion, we reserve the word ``window'' for the
+subdivisions that Emacs implements, and never use it to refer to a
+frame.
+
+ Editing you do in one frame affects the other frames. For
instance, if you put text in the kill ring in one frame, you can yank it
in another frame. If you exit Emacs through @kbd{C-x C-c} in one frame,
it terminates all the frames. To delete just one frame, use @kbd{C-x 5
0} (that is zero, not @kbd{o}).
- To avoid confusion, we reserve the word ``window'' for the
-subdivisions that Emacs implements, and never use it to refer to a
-frame.
-
- Emacs compiled for MS-DOS emulates some aspects of the window system
+ Emacs compiled for MS-DOS emulates some windowing functionality,
so that you can use many of the features described in this chapter.
@xref{MS-DOS Mouse}, for more information.
* Menu Bars:: Enabling and disabling the menu bar.
* Tool Bars:: Enabling and disabling the tool bar.
* Dialog Boxes:: Controlling use of dialog boxes.
-* Tooltips:: Showing "tooltips", AKA "balloon help" for active text.
+* Tooltips:: Displaying information at the current mouse position.
* Mouse Avoidance:: Moving the mouse pointer out of the way.
* Non-Window Terminals:: Multiple frames on terminals that show only one.
* XTerm Mouse:: Using the mouse in an XTerm terminal emulator.
frame's windows you click on. The default value is @code{nil}. This
variable also affects yanking the secondary selection.
-@cindex cutting and X
-@cindex pasting and X
+@cindex cutting
+@cindex pasting
@cindex X cutting and pasting
- To copy text to another X window, kill it or save it in the kill ring.
-Under X, this also sets the @dfn{primary selection}. Then use the
-``paste'' or ``yank'' command of the program operating the other window
-to insert the text from the selection.
+ To copy text to another windowing application, kill it or save it in
+the kill ring. Then use the ``paste'' or ``yank'' command of the
+other application to insert the text.
- To copy text from another X window, use the ``cut'' or ``copy''
-command of the program operating the other window, to select the text
-you want. Then yank it in Emacs with @kbd{C-y} or @kbd{Mouse-2}.
-
- The standard coding system for X selections is
-@code{compound-text-with-extensions}. To specify another coding
-system for X selections, use @kbd{C-x @key{RET} x} or @kbd{C-x
-@key{RET} X}. @xref{Specify Coding}.
+ To copy text from another windowing application, use its ``cut'' or
+``copy'' command to select the text you want. Then yank it in Emacs
+with @kbd{C-y} or @kbd{Mouse-2}.
@cindex primary selection
@cindex cut buffer
@cindex selection, primary
@vindex x-cut-buffer-max
- When Emacs puts text into the kill ring, or rotates text to the front
-of the kill ring, it sets the @dfn{primary selection} in the X server.
-This is how other X clients can access the text. Emacs also stores the
-text in the cut buffer, but only if the text is short enough
-(the value of @code{x-cut-buffer-max} specifies the maximum number of
-characters); putting long strings in the cut buffer can be slow.
+ When Emacs puts text into the kill ring, or rotates text to the
+front of the kill ring, it sets the @dfn{primary selection} in the
+window system. This is how other windowing applications can access
+the text. On the X Window System, emacs also stores the text in the
+cut buffer, but only if the text is short enough (the value of
+@code{x-cut-buffer-max} specifies the maximum number of characters);
+putting long strings in the cut buffer can be slow.
The commands to yank the first entry in the kill ring actually check
first for a primary selection in another program; after that, they check
for text in the cut buffer. If neither of those sources provides text
to yank, the kill ring contents are used.
+ The standard coding system for X Window System selections is
+@code{compound-text-with-extensions}. To specify another coding
+system for selections, use @kbd{C-x @key{RET} x} or @kbd{C-x @key{RET}
+X}. @xref{Communication Coding}.
+
@node Secondary Selection
@section Secondary Selection
@cindex secondary selection
The @dfn{secondary selection} is another way of selecting text using
-X. It does not use point or the mark, so you can use it to kill text
-without setting point or the mark.
+the X Window System. It does not use point or the mark, so you can
+use it to kill text without setting point or the mark.
@table @kbd
@findex mouse-set-secondary
@node Clipboard
@section Using the Clipboard
-@cindex X clipboard
@cindex clipboard
@vindex x-select-enable-clipboard
@findex menu-bar-enable-clipboard
@cindex OpenWindows
@cindex Gnome
- Apart from the primary and secondary selection types, X supports a
-@dfn{clipboard} selection type which is used by some applications,
-particularly under OpenWindows and Gnome.
+ Apart from the primary and secondary selection types, Emacs can
+handle the @dfn{clipboard} selection type which is used by some
+applications, particularly under OpenWindows and Gnome.
The command @kbd{M-x menu-bar-enable-clipboard} makes the @code{Cut},
@code{Paste} and @code{Copy} menu items, as well as the keys of the same
the Emacs yank functions consult the clipboard before the primary
selection, and to make the kill functions to store in the clipboard as
well as the primary selection. Otherwise they do not access the
-clipboard at all. Using the clipboard is the default on MS-Windows,
-unlike most systems.
+clipboard at all. Using the clipboard is the default on MS-Windows and Mac,
+but not on other systems.
@node Mouse References
@section Following References with the Mouse
@kbd{Mouse-2} on a completion in the @samp{*Completions*} buffer, you
choose that completion.
-@vindex mouse-1-click-follows-link
However, most applications use @kbd{Mouse-1} to do this sort of
thing, so Emacs implements this too. If you click @kbd{Mouse-1}
quickly on a reference or button, it follows or activates. If you
click slowly, it moves point as usual. Dragging, meaning moving the
mouse while it is held down, also has its usual behavior of setting
-the region. The variable @code{mouse-1-click-follows-link} controls
-whether @kbd{Mouse-1} has this behavior.
+the region.
-@vindex mouse-1-click-follows-link
+@vindex mouse-1-click-in-non-selected-windows
Normally, the @kbd{Mouse-1} click behavior is performed on links in
any window. The variable @code{mouse-1-click-in-non-selected-windows}
controls whether @kbd{Mouse-1} has this behavior even in non-selected
where the mouse already is), never, or only immediately after you move
the mouse.
+@vindex mouse-1-click-follows-link
+ In Emacs versions before 22, only @kbd{Mouse-2} follows links and
+@kbd{Mouse-1} always sets point. If you prefer this older behavior,
+set the variable @code{mouse-1-click-follows-link} to @code{nil}.
+This variable also lets you choose various other alternatives for
+following links with the mouse. Type @kbd{C-h v
+mouse-1-click-follows-link @key{RET}} for more details.
+
@node Menu Mouse Clicks
@section Mouse Clicks for Menus
- Mouse clicks modified with the @key{CTRL} and @key{SHIFT} keys
+ Several mouse clicks with the @key{CTRL} and @key{SHIFT} modifiers
bring up menus.
@table @kbd
you can access them without having to display the menu bar.
@item S-Mouse-1
-This menu is for specifying the frame's principal font.
+This menu is for specifying the frame's default font.
@end table
@node Mode Line Mouse
You can use mouse clicks on window mode lines to select and manipulate
windows.
+ Some areas of the mode line, such as the buffer name and the major
+mode name, have their own special mouse bindings. These areas are
+highlighted when you hold the mouse over them, and information about
+the special bindings will be displayed (@pxref{Tooltips}). This
+section's commands do not apply in those areas.
+
@table @kbd
@item Mouse-1
@kindex Mouse-1 @r{(mode line)}
@kbd{Mouse-1} on a mode line selects the window it belongs to. By
dragging @kbd{Mouse-1} on the mode line, you can move it, thus
-changing the height of the windows above and below.
+changing the height of the windows above and below. Changing heights
+with the mouse in this way never deletes windows, it just refuses to
+make any window smaller than the minimum height.
@item Mouse-2
@kindex Mouse-2 @r{(mode line)}
@end table
@kindex C-Mouse-2 @r{(scroll bar)}
- @kbd{C-Mouse-2} on a scroll bar splits the corresponding window
+@kindex Mouse-1 @r{(scroll bar)}
+ Using @kbd{Mouse-1} on the divider between two side-by-side mode
+lines, you can move the vertical boundary left or right. Using
+@kbd{C-Mouse-2} on a scroll bar splits the corresponding window
vertically. @xref{Split Window}.
- The commands above apply to areas of the mode line which do not have
-special mouse bindings of their own. Some areas, such as the buffer
-name and the major mode name, have their own special mouse bindings.
-Emacs displays information about these bindings when you hold the
-mouse over such a place (@pxref{Tooltips}).
-
@node Creating Frames
@section Creating Frames
@cindex creating frames
Here's a similar example for specifying a foreground color:
@example
-(add-to-list 'default-frame-alist '(background-color . "blue"))
+(add-to-list 'default-frame-alist '(foreground-color . "blue"))
@end example
-
@node Frame Commands
@section Frame Commands
@kindex C-z @r{(X windows)}
@findex iconify-or-deiconify-frame
Iconify the selected Emacs frame (@code{iconify-or-deiconify-frame}).
-The normal meaning of @kbd{C-z}, to suspend Emacs, is not useful under a
-window system, so it has a different binding in that case.
+The normal meaning of @kbd{C-z}, to suspend Emacs, is not useful under
+a graphical display that allows multiple applications to operate
+simultaneously in their own windies, so Emacs gives @kbd{C-z} a
+different binding in that case.
If you type this command on an Emacs frame's icon, it deiconifies the frame.
the variable should be @code{nil}.
@node Speedbar
-@section Making and Using a Speedbar Frame
+@section Speedbar Frames
@cindex speedbar
- An Emacs frame can have a @dfn{speedbar}, which is a vertical window
-that serves as a scrollable menu of files you could visit and tags
-within those files. To create a speedbar, type @kbd{M-x speedbar}; this
-creates a speedbar window for the selected frame. From then on, you can
-click on a file name in the speedbar to visit that file in the
-corresponding Emacs frame, or click on a tag name to jump to that tag in
-the Emacs frame.
-
- Initially the speedbar lists the immediate contents of the current
-directory, one file per line. Each line also has a box, @samp{[+]} or
-@samp{<+>}, that you can click on with @kbd{Mouse-2} to ``open up'' the
-contents of that item. If the line names a directory, opening it adds
+@cindex attached frame (of speedbar)
+ The @dfn{speedbar} is a special frame for conveniently navigating in
+or operating on another frame. The speedbar, when it exists, is
+always associated with a specific frame, called its @dfn{attached
+frame}; all speedbar operations act on that frame.
+
+ Type @kbd{M-x speedbar} to create the speedbar and associate it with
+the current frame. To dismiss the speedbar, type @kbd{M-x speedbar}
+again, or select the speedbar and type @kbd{q}. (You can also delete
+the speedbar frame like any other Emacs frame.) If you wish to
+associate the speedbar with a different frame, dismiss it and call
+@kbd{M-x speedbar} from that frame.
+
+ The speedbar can operate in various modes. Its default mode is
+@dfn{File Display} mode, which shows the files in the current
+directory of the selected window of the attached frame, one file per
+line. Clicking on a file name visits that file in the selected window
+of the attached frame, and clicking on a directory name shows that
+directory in the speedbar (@pxref{Mouse References}). Each line also
+has a box, @samp{[+]} or @samp{<+>}, that you can click on to
+@dfn{expand} the contents of that item. Expanding a directory adds
the contents of that directory to the speedbar display, underneath the
-directory's own line. If the line lists an ordinary file, opening it up
-adds a list of the tags in that file to the speedbar display. When a
-file is opened up, the @samp{[+]} changes to @samp{[-]}; you can click
-on that box to ``close up'' that file (hide its contents).
+directory's own line. Expanding an ordinary file adds a list of the
+tags in that file to the speedbar display; you can click on a tag name
+to jump to that tag in the selected window of the attached frame.
+When a file or directory is expanded, the @samp{[+]} changes to
+@samp{[-]}; you can click on that box to @dfn{contract} the item,
+hiding its contents.
+
+ You navigate through the speedbar using the keyboard, too. Typing
+@kbd{RET} while point is on a line in the speedbar is equivalent to
+clicking the item on the current line, and @kbd{SPC} expands or
+contracts the item. @kbd{U} displays the parent directory of the
+current directory. To copy, delete, or rename the file on the current
+line, type @kbd{C}, @kbd{D}, and @kbd{R} respectively. To create a
+new directory, type @kbd{M}.
+
+ Another general-purpose speedbar mode is @dfn{Buffer Display} mode;
+in this mode, the speedbar displays a list of Emacs buffers. To
+switch to this mode, type @kbd{b} in the speedbar. To return to File
+Display mode, type @kbd{f}. You can also change the display mode by
+clicking @kbd{mouse-3} anywhere in the speedbar window (or
+@kbd{mouse-1} on the mode-line) and selecting @samp{Displays} in the
+pop-up menu.
Some major modes, including Rmail mode, Info, and GUD, have
specialized ways of putting useful items into the speedbar for you to
files, and lets you move the current message to another Rmail file by
clicking on its @samp{<M>} box.
- A speedbar belongs to one Emacs frame, and always operates on that
-frame. If you use multiple frames, you can make a speedbar for some or
-all of the frames; type @kbd{M-x speedbar} in any given frame to make a
-speedbar for it.
+ For more details on using and programming the speedbar, @xref{Top,
+Speedbar,,speedbar, Speedbar Manual}.
@node Multiple Displays
@section Multiple Displays
@section Special Buffer Frames
@vindex special-display-buffer-names
- You can make certain chosen buffers, for which Emacs normally creates
-a second window when you have just one window, appear in special frames
-of their own. To do this, set the variable
-@code{special-display-buffer-names} to a list of buffer names; any
-buffer whose name is in that list automatically gets a special frame,
-when an Emacs command wants to display it ``in another window.''
+ You can make certain chosen buffers, which Emacs normally displays
+in ``another window,'' appear in special frames of their own. To do
+this, set the variable @code{special-display-buffer-names} to a list
+of buffer names; any buffer whose name is in that list automatically
+gets a special frame, when an Emacs command wants to display it ``in
+another window.''
For example, if you set the variable this way,
More generally, you can set @code{special-display-regexps} to a list
of regular expressions; then a buffer gets its own frame if its name
matches any of those regular expressions. (Once again, this applies only
-to buffers that normally get displayed for you in a separate window.)
+to buffers that normally get displayed for you in ``another window.'')
@vindex special-display-frame-alist
The variable @code{special-display-frame-alist} specifies the frame
@cindex Auto-Raise mode
@cindex Auto-Lower mode
- This section describes commands for altering the display style and
-window management behavior of the selected frame.
+@kindex S-Mouse-1
+ You can specify the font and colors used for text display, and the
+colors for the frame borders, the cursor, and the mouse cursor, by
+customizing the faces @code{default}, @code{border}, @code{cursor} and
+@code{mouse}. @xref{Face Customization}. You can also set a frame's
+default font through a pop-up menu. Press @kbd{S-Mouse-1} to activate
+this menu.
-@findex set-foreground-color
-@findex set-background-color
-@findex set-cursor-color
-@findex set-mouse-color
-@findex set-border-color
-@findex auto-raise-mode
-@findex auto-lower-mode
-@cindex colors
-@table @kbd
-@item M-x set-foreground-color @key{RET} @var{color} @key{RET}
-Specify color @var{color} for the foreground of the selected frame.
-(This also changes the foreground color of the default face.) You can
-specify @var{color} either by its symbolic name or by its RGB
-numerical specification@footnote{
-See the X Window System documentation for more details. On a typical
-GNU or Unix system, the command @kbd{man 7 X} or @kbd{man -s 7 X} will
-display the X manual page that explains how to specify colors.}.
-
-@item M-x set-background-color @key{RET} @var{color} @key{RET}
-Specify color @var{color} for the background of the selected frame.
-(This also changes the background color of the default face.)
-
-@item M-x set-cursor-color @key{RET} @var{color} @key{RET}
-Specify color @var{color} for the cursor of the selected frame.
-
-@item M-x set-mouse-color @key{RET} @var{color} @key{RET}
-Specify color @var{color} for the mouse cursor when it is over the
-selected frame.
-
-@item M-x set-border-color @key{RET} @var{color} @key{RET}
-Specify color @var{color} for the border of the selected frame.
-
-@item M-x list-colors-display
-Display the defined color names and show what the colors look like.
-This command is somewhat slow. @xref{Colors, list-colors-display,
-Display available colors}.
+ These commands are available for controlling the window management
+behavior of the selected frame.
+@table @kbd
+@findex auto-raise-mode
@item M-x auto-raise-mode
Toggle whether or not the selected frame should auto-raise. Auto-raise
means that every time you move the mouse onto the frame, it raises the
frame.
-Note that this auto-raise feature is implemented by Emacs itself. Some
-window managers also implement auto-raise. If you enable auto-raise for
-Emacs frames in your X window manager, it should work, but it is beyond
-Emacs's control and therefore @code{auto-raise-mode} has no effect on
-it.
+Some window managers also implement auto-raise. If you enable
+auto-raise for Emacs frames in your window manager, it will work, but
+it is beyond Emacs' control, so @code{auto-raise-mode} has no effect
+on it.
+@findex auto-lower-mode
@item M-x auto-lower-mode
Toggle whether or not the selected frame should auto-lower.
Auto-lower means that every time you move the mouse off the frame,
-the frame moves to the bottom of the stack of X windows.
+the frame moves to the bottom of the stack on the screen.
The command @code{auto-lower-mode} has no effect on auto-lower
-implemented by the X window manager. To control that, you must use
-the appropriate window manager features.
-
-@findex set-frame-font
-@item M-x set-frame-font @key{RET} @var{font} @key{RET}
-@cindex font (principal)
-Specify font @var{font} as the principal font for the selected frame.
-The principal font controls several face attributes of the
-@code{default} face (@pxref{Faces}). For example, if the principal font
-has a height of 12 pt, all text will be drawn in 12 pt fonts, unless you
-use another face that specifies a different height. @xref{Font X}, for
-ways to list the available fonts on your system.
-
-@kindex S-Mouse-1
-You can also set a frame's principal font through a pop-up menu.
-Press @kbd{S-Mouse-1} to activate this menu.
+implemented by the window manager. To control that, you must use the
+appropriate window manager features.
@end table
In Emacs versions that use an X toolkit, the color-setting and
@cindex Scroll Bar mode
@cindex mode, Scroll Bar
- When using X, Emacs normally makes a @dfn{scroll bar} at the left of
-each Emacs window.@footnote{Placing it at the left is usually more
-useful with overlapping frames with text starting at the left margin.}
-The scroll bar runs the height of the window, and shows a moving
-rectangular inner box which represents the portion of the buffer
-currently displayed. The entire height of the scroll bar represents the
-entire length of the buffer.
+ On graphical displays, Emacs normally makes a @dfn{scroll bar} at
+the left of each Emacs window.@footnote{Placing it at the left is
+usually more useful with overlapping frames with text starting at the
+left margin.} The scroll bar runs the height of the window, and shows
+a moving rectangular inner box which represents the portion of the
+buffer currently displayed. The entire height of the scroll bar
+represents the entire length of the buffer.
You can use @kbd{Mouse-2} (normally, the middle button) in the scroll
bar to move or drag the inner box up and down. If you move it to the
@findex scroll-bar-mode
@vindex scroll-bar-mode
You can enable or disable Scroll Bar mode with the command @kbd{M-x
-scroll-bar-mode}. With no argument, it toggles the use of scroll bars.
-With an argument, it turns use of scroll bars on if and only if the
-argument is positive. This command applies to all frames, including
-frames yet to be created. Customize the variable @code{scroll-bar-mode}
-to control the use of scroll bars at startup. You can use it to specify
-that they are placed at the right of windows if you prefer that. You
-have to set this variable through the @samp{Customize} interface
-(@pxref{Easy Customization}). Otherwise, it will not work properly.
-You can use the X resource @samp{verticalScrollBars} to control the
-initial setting of Scroll Bar mode similarly. @xref{Resources}.
+scroll-bar-mode}. With no argument, it toggles the use of scroll
+bars. With an argument, it turns use of scroll bars on if and only if
+the argument is positive. This command applies to all frames,
+including frames yet to be created. Customize the variable
+@code{scroll-bar-mode} to control the use of scroll bars at startup.
+You can use it to specify that they are placed at the right of windows
+if you prefer that. You have to set this variable through the
+@samp{Customize} interface (@pxref{Easy Customization}), or it will
+not work properly.
+
+ You can also use the X resource @samp{verticalScrollBars} to control
+the initial setting of Scroll Bar mode. @xref{Resources}.
@findex toggle-scroll-bar
To enable or disable scroll bars for just the selected frame, use the
The variables @code{mouse-wheel-follow-mouse} and
@code{mouse-wheel-scroll-amount} determine where and by how much
buffers are scrolled. The variable
-@code{mouse-wheel-progressive-speed} determines whether the the scroll
+@code{mouse-wheel-progressive-speed} determines whether the scroll
speed is linked to how fast you move the wheel.
@node Drag and Drop
(according to the conventions of the application it came from) into the
directory displayed in that buffer.
-@vindex x-dnd-open-file-other-window
+@vindex dnd-open-file-other-window
Dropping a file normally visits it in the window you drop it on. If
you prefer to visit the file in a new window in such cases, customize
-the variable @code{x-dnd-open-file-other-window}.
-
-@ignore
-@c ??? To Lisp manual
-@vindex x-dnd-test-function
-@vindex x-dnd-known-types
- When a user drags something from another application over Emacs, that other
-application expects Emacs to tell it if Emacs can handle the data that is
-dragged. The variable @code{x-dnd-test-function} is used by Emacs to determine
-what to reply. The default value is @code{x-dnd-default-test-function}
-which accepts drops if the type of the data to be dropped is present in
-@code{x-dnd-known-types}. You can customize @code{x-dnd-test-function} and/or
-@code{x-dnd-known-types} if you want Emacs to accept or reject drops based
-on some other criteria.
-
-@vindex x-dnd-types-alist
- If you want to change the way Emacs handles drop of different types
-or add a new type, customize @code{x-dnd-types-alist}. This requires
-detailed knowledge of what types other applications use for drag and
-drop.
-
-@vindex x-dnd-protocol-alist
- When an URL is dropped on Emacs it may be a file, but it may also be
-another URL type (ftp, http, etc.). Emacs first checks
-@code{x-dnd-protocol-alist} to determine what to do with the URL. If
-there is no match there and if @code{browse-url-browser-function} is
-an alist, Emacs looks for a match there. If no match is found the
-text for the URL is inserted. If you want to alter Emacs behavior,
-you can customize these variables.
-@end ignore
+the variable @code{dnd-open-file-other-window}.
- The drag and drop protocols XDND, Motif and the
-old KDE 1.x protocol are currently supported.
+ The XDND and Motif drag and drop protocols, and the old KDE 1.x
+protocol, are currently supported.
@node Menu Bars
@section Menu Bars
@xref{Menu Bar}, for information on how to invoke commands with the
menu bar. @xref{X Resources}, for how to customize the menu bar
-menus.
+menus' visual appearance.
@node Tool Bars
@section Tool Bars
bar uses monochrome icons (PBM or XBM format).
You can turn display of tool bars on or off with @kbd{M-x
-tool-bar-mode}.
+tool-bar-mode} or by customizing the option @code{tool-bar-mode}.
@node Dialog Boxes
@section Using Dialog Boxes
windows (but those are not supported on all platforms).
@vindex use-file-dialog
- A file selection window is a special kind of dialog box for asking for
-file names.
-
- You can customize the variable @code{use-file-dialog} to suppress the
-use of file selection windows even if you still want other kinds
-of dialogs. This variable has no effect if you have suppressed all dialog
-boxes with the variable @code{use-dialog-box}.
+ A file selection window is a special kind of dialog box for asking
+for file names. You can customize the variable @code{use-file-dialog}
+to suppress the use of file selection windows, even if you still want
+other kinds of dialogs. This variable has no effect if you have
+suppressed all dialog boxes with the variable @code{use-dialog-box}.
+
+@vindex x-gtk-show-hidden-files
+ For Gtk+ version 2.4 and newer, Emacs use the Gtk+ file chooser
+dialog. Emacs adds a toggle button that enables and disables showing
+of hidden files (files starting with a dot) in that dialog. The
+variable @code{x-gtk-show-hidden-files} controls whether to show
+hidden files by default.
@vindex x-use-old-gtk-file-dialog
For Gtk+ version 2.4 and 2.6, you can make Emacs use the old file dialog
the setting of this variable has no effect.
@node Tooltips
-@section Tooltips (or ``Balloon Help'')
+@section Tooltips
+@cindex tooltips
-@cindex balloon help
- Tooltips are small X windows displaying a help string at the current
-mouse position, typically over text---including the mode line---which
-can be activated with the mouse or other keys. (This facility is
-sometimes known as @dfn{balloon help}.) Help text may be available for
-menu items too.
+ @dfn{Tooltips} are small windows that display text information at the
+current mouse position. They activate when there is a pause in mouse
+movement. There are two types of tooltip: help tooltips and GUD
+tooltips.
+
+ @dfn{Help tooltips} typically display over text---including the mode
+line---but are also available for other parts of the Emacs frame, such
+as the tool bar and menu items.
@findex tooltip-mode
- To use tooltips, enable Tooltip mode with the command @kbd{M-x
-tooltip-mode}. The customization group @code{tooltip} controls
-various aspects of how tooltips work. When Tooltip mode is disabled,
-the help text is displayed in the echo area instead.
+ You can toggle display of help tooltips (Tooltip mode) with the
+command @kbd{M-x tooltip-mode}. When Tooltip mode is disabled, the
+help text is displayed in the echo area instead.
+
+ @dfn{GUD tooltips} show values of variables. They are useful when
+you are debugging a program. @xref{Debugger Operation}.
@vindex tooltip-delay
The variables @code{tooltip-delay} specifies how long Emacs should
@cindex mouse avoidance
@vindex mouse-avoidance-mode
-Mouse Avoidance mode keeps the window system mouse pointer away from
-point, to avoid obscuring text. Whenever it moves the mouse, it also
+Mouse Avoidance mode keeps the mouse pointer away from point, to avoid
+obscuring text you want to edit. Whenever it moves the mouse, it also
raises the frame. To use Mouse Avoidance mode, customize the variable
@code{mouse-avoidance-mode}. You can set this to various values to
move the mouse in several ways:
@cindex non-window terminals
@cindex single-frame terminals
- If your terminal does not have a window system that Emacs supports,
-then it can display only one Emacs frame at a time. However, you can
-still create multiple Emacs frames, and switch between them. Switching
-frames on these terminals is much like switching between different
-window configurations.
+ On a text-only terminal, Emacs can display only one Emacs frame at a
+time. However, you can still create multiple Emacs frames, and switch
+between them. Switching frames on these terminals is much like
+switching between different window configurations.
Use @kbd{C-x 5 2} to create a new frame and switch to it; use @kbd{C-x
5 o} to cycle through the existing frames; use @kbd{C-x 5 0} to delete
@findex set-frame-name
@findex select-frame-by-name
- @samp{F@var{n}} is actually the frame's name. You can also specify a
-different name if you wish, and you can select a frame by its name. Use
-the command @kbd{M-x set-frame-name @key{RET} @var{name} @key{RET}} to
-specify a new name for the selected frame, and use @kbd{M-x
-select-frame-by-name @key{RET} @var{name} @key{RET}} to select a frame
-according to its name. The name you specify appears in the mode line
-when the frame is selected.
+ @samp{F@var{n}} is in fact the frame's initial name. You can give
+frames more meaningful names if you wish, and you can select a frame
+by its name. Use the command @kbd{M-x set-frame-name @key{RET}
+@var{name} @key{RET}} to specify a new name for the selected frame,
+and use @kbd{M-x select-frame-by-name @key{RET} @var{name} @key{RET}}
+to select a frame according to its name. The name you specify appears
+in the mode line when the frame is selected.
@node XTerm Mouse
@section Using a Mouse in Terminal Emulators
@cindex xterm, mouse support
@cindex terminal emulators, mouse support
-Some terminal emulators under X support mouse clicks in the terminal
+ Some terminal emulators under X support mouse clicks in the terminal
window. In a terminal emulator which is compatible with @code{xterm},
you can use @kbd{M-x xterm-mouse-mode} to give Emacs control over
simple use of the mouse---basically, only non-modified single clicks