Get Selection from Layer

Question

How can one get a selection based on a specific layer's transparency using script?  Basically, I'm looking for the same result as when one ctrl+clicks a layer's thumbnail in the Layers window.  Thanks for any help!
dgolberg

Answer 1

Hmm, strange.  I'm using the latest version of CS4 btw.
Here's the exact code I'm using:
#target photoshop
var targetSelection = app.activeDocument.layerSets.getByName("stone").layers.getByName("mask");
app.activeDocument.activeLayer = targetSelection;
selectArea();
function selectArea() {
var desc = new ActionDescriptor();
var ref = new ActionReference();
ref.putProperty( charIDToTypeID('Chnl'), charIDToTypeID('fsel') );
desc.putReference( charIDToTypeID('null'), ref );
var ref2 = new ActionReference();
ref2.putEnumerated( charIDToTypeID('Chnl'), charIDToTypeID('Chnl'), charIDToTypeID('Trsp') );
desc.putReference( charIDToTypeID('T   '), ref2 );
executeAction( charIDToTypeID('setd'), desc, DialogModes.NO );
well, exact except for the weird error where it puts a space in "mask" -.-;