</DL>
<H3><A NAME="M11">WIDGET COMMAND</A></H3>
In addition to the standard
<B>cget</B>, <B>configure</B>, <B>identify</B>, <B>instate</B>, and <B>state</B>
commands, checkbuttons support the following additional
widget commands:
<P>
<DL class="widget command">
<DT><A NAME="M12"><I>pathname</I><B> invoke</B></A><DD>
Toggles between the selected and deselected states
and evaluates the associated <B>-command</B>.
If the widget is currently selected, sets the <B>-variable</B>
to the <B>-offvalue</B> and desele