detecting for how long a key is being pressed

[J. Landman Gay]

oh.l at mac.com wrote:
> hello:  i am trying to measure how long a certain key is being  pressed 
> by the user.  how can i do this in runrev?  thanks!  olli.

See the "keydown" and "keyup" messages in the dictionary, as well as the 
"rawkeydown" and "rawkeykup" messages. You can get the milliseconds when 
a key goes down and store it in a script local variable. Then get it 
again when the key goes up, and subtract the difference between the two 
to give you the duration of the keypress.

Note that on Mac OS a "keyup" message is sent by the OS immediately 
after "keydown" regardless of whether the user has released the key or 
not, which means you can't time keypresses on that operating system. It 
works okay on Mac OS X though.

-- 
Jacqueline Landman Gay         |     jacque at hyperactivesw.com
HyperActive Software           |     http://www.hyperactivesw.com