cts worthwhile.</P>
<P>
<A NAME="IX_VisClass:displaying">
 </A>
Nearly all visible objects you use will at least display themselves on the screen. Some may accept mouse or keyboard input; some may move themselves around the screen, resize themselves, or implement custom geometry management functions.</P>
<P>
For a subclass of <CODE>
VisClass</CODE>
 to display itself on the screen, it must handle the message <CODE>
MSG_VIS_DRAW</CODE>
. This message is sent to all visible objects in a given window when that