 window is subjected to an exposure event. In addition, the object must be part of a tree of visible objects, the top node of which is connected to a GenView or other windowed object. Displaying a basic visible object is discussed below.</P>
<P>
<A NAME="IX_VisClass:input">
 </A>
For a visible object to handle mouse input, it will need to handle a subset of the mouse event messages. Typically, a visible object will want to know when the mouse is clicked within the object's bounds (<CODE>
MSG_META_START_SELE