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not be injected into the widget. This allows the programmer to
selectively pick which characters will or will not get injected
into the widget.

The </B>postProcess<!B> function sets a process to be run before the key entered
is processed. If this function returns a value of 0, then the key injected
into the widget will not be processed; otherwise the character will be
processed as normal.  The following example demonstrates how to call the
postProcess method.
<C></B>$menuObject->postProcess ( options );

The options are defined in the following table.

</U>Option      Default Value       Type       Purpose<!U>
Function    Required            Scalar     This is the name of the
                                           callback function.

To create a post-process callback the following code segment demonstrates
how to do it properly.

<C></B>$menuObject->postProcess ('Function' => sub { callback (@_); });

Notice that the array </B>@_<!B> is passed into the function called
</B>callback<!B>. This is done because when the callback process is 
called the key which was pressed is passed into the perl subroutine.
Since we nest the call-back function inside an anonymous subroutine,
we need to pass the array </B>@_<!B> to the call-back function. If
the key given to the call-back function is a non alphanumeric key
then a predefined value will be given to the function. The following
table describes the values passed into the function.

<C><#UL><#HL(11)><#TT><#HL(14)><#UR>
<C><#VL></U>Key         <#VL>Key Value      <!U><#VL>
<C><#VL>Left Arrow  <#VL>KEY_LEFT       <#VL>
<C><#VL>Right Arrow <#VL>KEY_RIGHT      <#VL>
<C><#VL>Up Arrow    <#VL>KEY_UP         <#VL>
<C><#VL>Down Arrow  <#VL>KEY_DOWN       <#VL>
<C><#VL>Delete      <#VL>KEY_DELETE     <#VL>
<C><#VL>Backspace   <#VL>KEY_BACKSPACE  <#VL>
<C><#VL>Page Up     <#VL>KEY_PPAGE      <#VL>
<C><#VL>Page Down   <#VL>KEY_NPAGE      <#VL>
<C><#VL>Home        <#VL>KEY_HOME       <#VL>
<C><#VL>End         <#VL>KEY_END        <#VL>
<C><#VL>Escape      <#VL>KEY_ESC        <#VL>
<C><#LL><#HL(11)><#BT><#HL(14)><#LR>
</B>draw<!B>
This method draws the object on the screen. The following example demonstrates
how to call the draw method.
<C></B>$menuObject->draw ();

</B>erase<!B>
This method removes the object from the screen. This does </B/U>NOT<!B!U> 
destroy the object. The following example demonstrates how to call the erase 
method.
<C></B>$menuObject->erase ();

</R>Default Key Bindings<!R>
</U>Key               Action<!U>
Left Arrow        Moves to the menu list on the left.
Right Arrow       Moves to the menu list on the right.
Up Arrow          Moves the cursor up one menu item.
Down Arrow        Moves the cursor up one menu item.
Space             Moves the cursor up down menu item.
Return            Selects the current menu item.
Tab               Moves to the menu list on the right.
Escape            Exits the widget and returns undef.
CTRL-R            Refreshes the screen.

</R>Tips & Tricks<!R>
None.

</R>Physical Restrictions<!R>
</U>Restriction                    Value<!U>
Max number of menu items.      30
Max number of sub-menu items.  98

</R>Example Use Of The Widget<!R>
<F=../examples/menu>
<C><#HL(70)>
<C>Document Created: June,     1995
<C>Document Revised: November, 1995
<C>Document Revised: March,    1996
<C>Document Revised: June,     1996