pre-loading items in Slide object

[David McFarlane]

Terhi,

Come to think of it, if you have EP2.0.10.242, then setting the new 
GeneratePreRun feature to TopOfProcedure (the default value) does 
exactly what you asked (pre-load Slide sub-objects at start of 
Procedure) automatically.  If you have not already, this may make it 
worth your while to upgrade, but beware of all the new features & 
gotchas of the new version (see 
http://www.pstnet.com/support/kb.asp?TopicID=5345 for a few hints).

-----
David McFarlane
E-Prime training 
online:  http://psychology.msu.edu/Workshops_Courses/eprime.aspx
Twitter:  @EPrimeMaster (https://twitter.com/EPrimeMaster)


At 12/3/2012 02:45 PM Monday, David McFarlane wrote:
>Terhi,
>
>Start by looking at the SlideSoundOut and SoundBuffer topics in the 
>E-Basic Help facility.  Then look at the "Load Image Upon Mouse 
>Click" example from the Samples area of the PST website, I think 
>that will show the mechanics of how to access Slide 
>sub-objects.  Then take it from there.
>
>-----
>David McFarlane
>E-Prime training 
>online:  http://psychology.msu.edu/Workshops_Courses/eprime.aspx
>Twitter:  @EPrimeMaster (https://twitter.com/EPrimeMaster)
>
>/----
>Stock reminder:  1) I do not work for PST.  2) PST's trained staff 
>take any and all questions at 
>http://support.pstnet.com/e%2Dprime/support/login.asp , and they 
>strive to respond to all requests in 24-48 hours -- this is pretty 
>much their substitute for proper documentation, so make full use of 
>it.  3) In addition, PST offers several instructional videos on 
>their YouTube channel (http://www.youtube.com/user/PSTNET ).  4) If 
>you do get an answer from PST staff, please extend the courtesy of 
>posting their reply back here for the sake of others.
>\----
>
>
>At 12/2/2012 03:36 PM Sunday, you wrote:
>>I have tried to preload soundfiles and moviefiles of a slide object 
>>in the beginning of the trial to decrease timing delay. (I can't 
>>use prerelease in my experiment.)
>>
>>I found a good example of preloading stimuli from 
>><http://imaging.mrc-cbu.cam.ac.uk/imaging/EprimeTiming>http://imaging.mrc-cbu.cam.ac.uk/imaging/EprimeTiming 
>>:
>>
>>----
>>
>>This example shows how to preload soundfiles:
>>
>>
>>
>>'Get the soundbuffer from the soundout object
>>Dim SBuffer as SoundBuffer
>>Set SBuffer = SoundOut1.Buffers(1)
>>
>>'Assign the new filename (where Stimulus is name of attribute on 
>>list that lists sound files)
>>SBuffer.Filename = c.GetAttrib("Stimulus")
>>
>>'Instruct the object to load the sound contents into its internal structures
>>SoundOut1SoundBuffer.Load
>>
>>
>>And here's how to preload images:
>>
>>
>>
>>'Retrieve the image filename from the Context
>>Dim strImageFileName As String
>>strImageFileName = c.GetAttrib("imagefilename")
>>
>>'Assign the new filename and instruct the object
>>'to load the image
>>ImageDisplay1.Filename = strImageFileName
>>ImageDisplay1.Load
>>
>>---
>>
>>
>>
>>However, I didn't succeed in doing the same when the sound file and 
>>the movie files are subobjects of a slide object. Could somebody 
>>help me with this? Thank you in advance!
>>
>>
>>Terhi


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