* Keymap Type:: What function a keystroke invokes.
* Overlay Type:: How an overlay is represented.
* Font Type:: Fonts for displaying text.
+* Xwidget Type:: Embeddable widgets.
Numbers
* Keymap Type:: What function a keystroke invokes.
* Overlay Type:: How an overlay is represented.
* Font Type:: Fonts for displaying text.
+* Xwidget Type:: Embeddable widgets.
@end menu
@node Buffer Type
@samp{#<font-entity>} respectively. @xref{Low-Level Font}, for a
description of these Lisp objects.
+@node Xwidget Type
+@subsection Xwidget Type
+@cindex xwidget type
+@cindex xwidget-view type
+
+ An @dfn{xwidget} is a special display element, such as a web
+browser, that can be embedded inside a buffer. Each window that
+displays an xwidget will also have an @dfn{xwidget view}, which on
+X-Windows corresponds to a single X window used to display the widget.
+
+Neither of these objects are readable; their print syntaxes look like
+@samp{#<xwidget>} and @samp{#<xwidget-view>}, respectively.
+@xref{Xwidgets}, for a more detailed description of xwidgets.
+
@node Circular Objects
@section Read Syntax for Circular Objects
@cindex circular structure, read syntax