 shown below). When it has the mouse grab, it will receive <CODE>
MSG_META_PTR</CODE>
 each time the mouse is moved; the object should subclass this message to provide the desired reaction to mouse moves. Finally, when the user releases the select button, the object will receive a <CODE>
MSG_META_END_SELECT</CODE>
. At this point, it should release the mouse grab.</P>
<P>
Typically, mouse events will arrive with coordinates specified in 16 bits. This is the default graphics space, and it represents a coordi