Flickering '+' fixation

[maayan kedar]

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 <javascript:>>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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