The Slider in Solaris gets too many events; it does not match Win95
behavior.

Applet tested:

    http://fas.sfu.ca:80/1/cs/people/GradStudents/heinrica/personal/curve.html

Win95 behavior looks basically correct -- interactions with slider
button change slider value by one (at time of mouse up):

    - quick click and release
    - mouse down, hold, and mouse up
    - mouse down, drag around, mouse up (even if outside of window)

Solaris behavior shows too many events sent to slider -- slider value
can change by one up to any number for a single mouse down-up
pair:

    - quick click and release (change by 1)
    - mouse down, hold still, mouse up (change by 1 at time of mouse
      down, not at time of mouse up)
    - mouse down, drag around, mouse up (change by any number -- looks
      like 1 for mouse down, 1 for each mouse dragged event, and 1 for
      mouse up)

Summary of Win95 versus Solaris differences for slider button
press-release:

    - slider value changes by 1 (Win95) versus 1-to-any number (Solaris)
    - slider value changes at mouse up (Win95) versus at mouse down (Solaris)