Working with Guides using ActionScript in Photoshop

Question

I am facing some troubles when working with Guides in Photoshop (AS/Flash extension)
Let's create guides showinglayer bounds:
                var bounds:Array = activeDocument.activeLayer.bounds;
                var guide_a:Guide = activeDocument.guides.add(Direction.VERTICAL, bounds[0]);
                var guide_b:Guide = activeDocument.guides.add(Direction.HORIZONTAL, bounds[1]);
                var guide_c:Guide = activeDocument.guides.add(Direction.VERTICAL, bounds[2]);
                var guide_d:Guide = activeDocument.guides.add(Direction.HORIZONTAL, bounds[3]);
This works fine. Layer bounds are marked correctly.
If I try to remove individual guides, I am facing an issue:
                guide_a.remove();
                guide_b.remove();
                guide_c.remove();
                guide_d.remove();
PS starts throwing strange errors:
Error: General Photoshop error occurred. This functionality may not be available in this version of Photoshop.
- The object "guide 8 of document 35" is not currently available.
It is not clear, what document 35 really means (it is not name of actual document .. internal name?). Also interesting that remove() is not availabel in JavaScript API's.
Also if I try to bind on "coordinate" property of Bound, no changes seems to be propagated.
Any idea?
Thanks,
--Petr

Answer 1

Yes it definitely looks like there is a problem with the reference returned by add(). Looks like you can work around it though by getting the guide by reference immediately after adding it using the known index.
For your question about events. The easiest way to see if there is some event you can listen for is to use the ScriptListener in Photoshop. With that, you can quickly see whether or not an event fires when you expect (there may not be one available to scripting). Once you know the event fires, you can add the handler, using this as a reference: http://cssdk.host.adobe.com/sdk/1.0/docs/WebHelp/app_notes/photoshop.htm.
I don't see a clear way to check the visibility of guides. Although there may be some magic you can do using descriptors. Maybe we'll get some help from a real Photoshop scripting expert
Zak