Have you tried something like this:

            DescriptorTypeID runtimeKeyID;

            DescriptorTypeID runtimeClassID;

            DescriptorClassID descClass;

            PIActionDescriptor descLayer = NULL;

            PIActionDescriptor descPosition = NULL;

            double top= 0;

            double left= 0;

            double bottom= 0;

            double right= 0;

            int LayerCounter;

            ...

            error = PIUGetInfoByIndex(LayerCounter,classLayer,0,&descLayer,NULL);

            if (error) goto returnAutoError;

            error = sPSActionControl->StringIDToTypeID("bounds", &runtimeKeyID);

            if (error) goto returnAutoError;

            error = sPSActionControl->StringIDToTypeID("classRectangle", &runtimeClassID);

            if (error) goto returnAutoError;

            error = PIUGetSingleItemFromDescriptor(descLayer,runtimeKeyID,&descPosition,& descClass);

            if (error) goto returnAutoError;

            error = sPSActionDescriptor->GetFloat(descPosition, keyTop, &top);

            if (error) goto returnAutoError;

            error = sPSActionDescriptor->GetFloat(descPosition, keyLeft, &left);

            if (error) goto returnAutoError;

            error = sPSActionDescriptor->GetFloat(descPosition, keyBottom, &bottom);

            if (error) goto returnAutoError;

            error = sPSActionDescriptor->GetFloat(descPosition, keyRight, &right);

            if (error) goto returnAutoError;

            ...

            returnAutoError:

            if (descLayer != NULL) sPSActionDescriptor->Free(descLayer);

            if (descPosition != NULL) sPSActionDescriptor->Free(descPosition);

            ...

Try running Getter when you have opened file in Photoshop, it will give you every information that can be get from layer. Actualy Getter makes the code as it is making or "Putting" info to Photoshop but rewritting the code is simple.

Hope this helps,

Momir Zecevic

Ars Media

www.arsmedia.tv