>X-Sender: rnewton@bruce
>Date: Thu, 09 Feb 1995 09:36:21 -0500
>To: Michael Coupland
>From: rnewton@scu.edu.au (Robert Newton)
>Subject: Re: PC timing software
>X-UIDL: 792295802.016
>>I would appreciate if anyone has suggestions for software for creating a
>>"stopwatch" function in a windows program.
>We have quite a good DOS based timer program for assessing human
>performance. A range of switches can be connected directly to the printer
>port on any IBM PC compatible computer running MS DOS 3.3 or later. A range
>of variables can be measured using a contact mat. These include contact
>time, flight time, jump height, power output, multiple jump recording, foot
>contact and swing times during gait. Infra red timing lights, foot switches
>etc can also be used with the program recording split times, and calculating
>velocities, reaction time etc.. If you would like a demonstration version of
>the system, please email me and I can send it to you via email or snail mail.
>With regard to your request for information on timing under Windows. There
>is considerable difficulty in doing this. Because Windows is
>psuedo-multitasking a program can be interupted at any time while other
>tasks are being performed. The usual Windows timers are easily accessible
>from Visual Basic or Visual C but are only accurate to less than 50ms.
>Higher resolution timers are available (1 ms) and they are included in the
>Microsoft Windows Multimedia Extensions. That solves that problem, however,
>trapping an event such as a key press, or change in state of the printer
>port involves the risk of a time delay. To avoid this a driver must be
>specifically written to trap the event and record the time elapsed. At
>present we are working on just such a driver. I cannot tell you at this
>time however, when this new timer program will be available.
>Robert Newton
>Robert Newton
>Centre for Exercise and Sport Management
>Southern Cross University
>PO Box 157
>Lismore, NSW 2480, Australia
>Telephone: Int + 61 66 203 234 Facsimile: Int + 61 66 203 880
>Email: rnewton@scu.edu.au

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~
Michael Coupland, M.A., C.C.R.C. "And in the end,
300-1815 Blanshard St We arrive back at the beginning,
Victoria, B.C., Canada V8T 5A4 And know the place for the first time"
(604) 381-1530
(604) 382-2355 (fax) T.S. Eliot