[net.micro.mac] How to detect a \"double click\"

harrow@exodus.dec.com (Jeff Harrow, NCSE LKG1-3/F16 DTN=226-7445) (09/24/86)

Does anyone out there have a code fragment (Pascal prefered but anything
except APL is acceptable) showing how to detect that a "double click" has
occured, as opposed to a typical "single click"?

Your help is appreciated!

Jeff