Change thumbnail image on device rotation in custom store

Question

We have a custom store front that is populated on loading the page.
we use sample code from one of the store building examples.
that code has a methods like getPreviewImageHandler and loadPreviewImage that take a boolean to select either the portrait or landscape image for the store view.
but this method is only called when the page loads.
so if we want to use the portrait image on portrait view pages and the landscape image for the landscape view, we'd need to reload the page on rotation which we dont want to do.
does anyone have any ideas or examples of how we could dynamically swap that image out on device rotation.
The Wired magazine does it beautifully, so it must be possible.
there must be a AJAX solution.
Can anyone help us out please?
much appreciated,
Vauneen

Answer 1

You can set a "poster frame" in Quicktime when the file is opened in Quicktime Pro and I believe you can do that as well when using Get Info (not a Mac guy). Otherwise this is entirely arbitrary. Sometimes it's the first frame, sometimes the middle, sometimes one from the 10 minute save chunks AE uses when writing certain clip formats. Still, even if there is a poster frame it doesn't mean that it's actually used anywhere. This stuff simply is not standardized and latest when you open your files on another system all of this may be for nought since the thumbnails would not be in your system's folder view caches. You really should not spend too much time thinking about this and rather use tools that produce persistent thumbnails within their own ecor system like Bridge or video archival database programs.
Mylenium