no image should be loaded for "?" in list

[liwenna]

How about.....

adding an attribute to your list that holds the number of bitmaps that
you need to use in that level/trail called say... "nbitmaps" and give
the slide element multiple states that are called 1 2 3 4 etc. and
hold 1 2 3 or 4 images. Then set the slidestate to [nbitmaps] and
according to the value of 'nbitmaps' it will show the slidestate with
1 2 3 or 4 imageobjects in it. As a consequence you might also need to
specify the x and y values (positions) of each imageobject in the
triallist instead of in the properties of each imageobject (as I think
you got them now?). I am not entirely sure if e-prime will allow the
slideobject to run if not all referenced values for all slidestates
are being adressed in the triallist (as would be the case for say
slidestate 4 in a nbitmap = 3 trial) but you can give it a shot; and
also, depending on your actually number of possible positions, this
might be not a feasible option... but yeah... it's just a suggestion.

Alternatively you might be able to solve it somehow by drawing the
entire canvas for each trial in an inline but that definitly is a lot
of work.

Then there is a vague notion somewhere in my head that you can bring
imageobjects to the front or sent them to the back... but I have no
friggin clue as to how to do that 'dynamically' based on each trial's
demands....

That would be all for the moment ...

best,

liw

On Nov 5, 7:42 pm, Tobi <tobias... at gmail.com> wrote:
> Hi together,
>
> I have a problem as fallows: I have a display containing n positions
> as specified in the "slide element". Which bitmap is supposed to be
> placed on which position is then defined in a list. Sometimes, I wish
> to have no bitmap at all on some positions. Therefore I left the "?"
> in the list. An error message occurs saying "Filename or image display
> has not been set". It is the same if I leave a blank in the respective
> cell.
>
> I also thought about displaying en empty bitmap (that is in the color
> of the background), however the positions are superimposed. Therefore,
> te bitmaps would only be partly displayed.
>
> Maybe there is an easy solution, I didn't find any.
> Thanks a lot and cheers,
> Tobi
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