<div dir="ltr"><div><div><div>Hi,<br><br></div>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.<font style="background-color:rgb(51,153,255)" color="#ffffff">IsPending</font>  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...<br>

<br></div>cheers<br></div>Paul<br><div class="gmail_extra"><br><br><div class="gmail_quote">On 17 April 2013 16:10, maayan kedar <span dir="ltr"><<a href="mailto:kmaayane@gmail.com" target="_blank">kmaayane@gmail.com</a>></span> wrote:<br>

<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="direction:ltr"><p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial">

<span style="font-size:10pt;font-family:Arial,sans-serif">Hello,<u></u><u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif"><u></u> <u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif"><u></u> <u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif">I am having hard time
to understand how I can create a slide which contains flickering '+' fixation.<u></u><u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif">I looked up here and
sow explanations about crating few items flickering on different time but am
not got to create only one!<u></u><u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif"><u></u> <u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif">I used the online help
and tried this:<u></u><u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif"><u></u> <u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif">Slide. Draw<u></u><u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif"><u></u> <u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif">Sleep 200<u></u><u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif"><u></u> <u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif">Slide. Clear<u></u><u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif"><u></u> <u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif">and so on, but no
matter how much I repeated these draw and clear it always stop after 3 times!<u></u><u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif"><u></u> <u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif">I also tried to create
loop but it didn't go well /:<u></u><u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif"><u></u> <u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif"><u></u> <u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif">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.<u></u><u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif"><u></u> <u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif">I whold appreciate
very much your help to explain how to put the fixation to flash with or without
loop?<u></u><u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif"><u></u> <u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif">Thank you very much in
advance<span><font color="#888888"><u></u><u></u></font></span></span></p><span><font color="#888888">

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif"><u></u> <u></u></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;direction:ltr;background-repeat:initial initial"><span style="font-size:10pt;font-family:Arial,sans-serif">Maayan<u></u><u></u></span></p></font></span></div>

<span><font color="#888888">

<p></p>

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