how to measure the duration of a key press\ the time of it's release

[KatrinH Heimann]

Hey Ziv,
actually I think you could solve this problem with less programming,
telling eprime to also measure key releases, then having an a testslide for
two responses (press and release) which registers key pressed and time of
release, then you just put an inline saying that if the waiting time has
not passed (so the moment of the new slide, randomly calculated beforehand)
then go (jump) to end of trial, if it has passed go to the next slide
(program responding)
Best
Katrin


2013/5/29 Ziv Ronel <ronelziv at gmail.com>

> hello E-prime hive brain,
>
> I know it's probably dead simple but iv'e been at it for a week now.
>
> i'm doing a study in which random pauses are introduced, in a frustrating
> matter, and the participants should press keys randomly in an attempt to
> make the program work.
>
> i need to measure how many frustrated keypresses there were, at what rate,
> and for how long each key was down (to measure these long angered key
> presses).
>
> I managed to create the first two, but haven't been able to measure
> duration.
> the only thing that came even close was this piece of code that I wrote:
>
>         Dim theResponseObject As RteRunnableInputObject
> Set theResponseObject = CRteRunnableInputObject(Rte.GetObject("Wait1"))
>
>         Debug.Assert Not theResponseObject Is Nothing
>
> Dim KeyReleaseTime As Long
> If ebStatePress = 0 Then
> KeyReleaseTime =  Clock.ReadMillisec
> End If
>
>         c.SetAttrib "KeyPress" & nIndex & "Release", KeyReleaseTime
>
>
> (there is also a loop in there designed to redo that for every key press
> made in "wait1", but i've left it out)
>
>
> HELP!
>
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