Flickering '+' fixation

[Paul Groot]

Duration is a property of the (parent) Slide object, not one of its
subobjects...

paul


On 22 April 2013 18:30, maayan kedar <kmaayane at gmail.com> wrote:

> Thanks!
> Some how, I got into a problem with the subobject, got an error massage
> says thet I cant for example fix the duration of a subobject.
>
> Anyway I'll try this direction again
>
> Thanks again
> Maayan
>
> בתאריך יום חמישי, 18 באפריל 2013 01:16:12 UTC+3, מאת Paul Groot:
>>
>> Hi,
>>
>> Normally I would advise to simply use another list-object for creating a
>> repeating (flickering) slide object. But if timing is critical, and you
>> would only like to redraw/clear a single subobject on the slide, you could
>> go ahead with the for loop. However, keep in mind you have to sync with the
>> refresh rate of the display if you update the screen contents (by using
>> Display.WaitForVerticalBlank). When the loop should be terminated by a
>> keyboard response, you should use the InputMaskManager.IsPending
>> function and a while loop. The fixation object can be referenced as a
>> subobject of the Slide state (Slide.States('...').Objects('**...')) The
>> EBasic manual contains examples for this...
>>
>> cheers
>> Paul
>>
>>
>> On 17 April 2013 16:10, maayan kedar <kmaa... at gmail.com> wrote:
>>
>>> Hello,****
>>>
>>> ** **
>>>
>>> ** **
>>>
>>> I am having hard time to understand how I can create a slide which
>>> contains flickering '+' fixation.****
>>>
>>> I looked up here and sow explanations about crating few items flickering
>>> on different time but am not got to create only one!****
>>>
>>> ** **
>>>
>>> I used the online help and tried this:****
>>>
>>> ** **
>>>
>>> Slide. Draw****
>>>
>>> ** **
>>>
>>> Sleep 200****
>>>
>>> ** **
>>>
>>> Slide. Clear****
>>>
>>> ** **
>>>
>>> and so on, but no matter how much I repeated these draw and clear it
>>> always stop after 3 times!****
>>>
>>> ** **
>>>
>>> I also tried to create loop but it didn't go well /:****
>>>
>>> ** **
>>>
>>> ** **
>>>
>>> Another problem is that I need only the fixation to flash and not other
>>> items, and to stop when the participant presses the keyboard for correct
>>> answer.****
>>>
>>> ** **
>>>
>>> I whold appreciate very much your help to explain how to put the
>>> fixation to flash with or without loop?****
>>>
>>> ** **
>>>
>>> Thank you very much in advance****
>>>
>>> ** **
>>>
>>> Maayan****
>>>
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