@kindex C-z @r{(X windows)}
@findex iconify-or-deiconify-frame
Iconify the selected Emacs frame (@code{iconify-or-deiconify-frame}).
+When typed on an Emacs frame's icon, deiconify instead.
+
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 windows, 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.
-
@item C-x 5 0
@kindex C-x 5 0
@findex delete-frame
hidden files by default.
@vindex x-gtk-use-old-file-dialog
- For Gtk+ version 2.4 through 2.10, you can make Emacs use the old file dialog
-(gtk-file-selector) by setting the variable @code{x-gtk-use-old-file-dialog}
-to a non-@code{nil} value. Otherwise the gtk-file-chooser will be used.
-If Emacs is built with a Gtk+ version that has only one file dialog,
-the setting of this variable has no effect.
+ For Gtk+ versions 2.4 through 2.10, you can select the old file
+dialog (@code{gtk-file-selector}) by setting the variable
+@code{x-gtk-use-old-file-dialog} to a non-@code{nil} value. If it is
+@code{nil}, Emacs uses @code{gtk-file-chooser}. If Emacs is built
+with a Gtk+ version that has only one file dialog, this variable has
+no effect.
@vindex x-gtk-file-dialog-help-text
- Emacs will by default add some help text to the Gtk+ file chooser dialog.
-If you don't want to see that text, you can customize the variable
-@code{x-gtk-file-dialog-help-text}. A @code{nil} value will disable the
-help text.
+ Emacs adds help text to the Gtk+ file chooser dialog. The variable
+@code{x-gtk-file-dialog-help-text} specifies the text to add; if it is
+@code{nil}, that disables the added text.
@node Tooltips
@section Tooltips