Sounds like perhaps you want a progress bar http://forums.adobe.com/message/4530678#4530678http://forums.adobe.com/message/4530678#4530678

I don’t know if there’s a proper way to do this, but one can getTime() before showing the window, then set up a while function to compare the current time with that and close the window if a certain difference has been reached.

But that would effectively halt the Script for the duration and seems a somewhat brute approach.

Edit: Instead of a while function I guess one could also check for the passed time at later positions in the Script, but who knows if that’s a good idea?

Edit 2: It seems to work, though; Photoshop can execute (at least some) Script commands while the window is open.

Well, like I said in an edit to the message it seems to work.

Not sure if it’s wise to  do it thusly, though.

// 2012, use it at your own risk;

#target photoshop

var w = new Window('palette','Check Complete', [500,300,820,850]);

 

 

var now = new Date();

var thisTime = now.getTime();

 

 

var ret = w.show();

 

 

var myDocument = app.documents.add(new UnitValue(2000, "px"), new UnitValue(2000, "px"), 300, "test", NewDocumentMode.RGB, DocumentFill.TRANSPARENT);

myDocument.selection.selectAll();

 

 

checkTime (thisTime);

 

 

myDocument.selection.fill(app.foregroundColor, ColorBlendMode.NORMAL, 100, false);

 

 

checkTime (thisTime);

 

 

myDocument.layers[0].applyClouds();

 

 

checkTime (thisTime);

 

 

myDocument.selection.deselect();

 

 

checkTime (thisTime);

 

 

check = true;

while (check == true) {

var now2 = new Date();

var thisTime2 = now2.getTime();

if (thisTime2 > thisTime + 1000) {

          check = false;

          try {w.close()} catch (e) {}

          }

};

 

 

////////////////////////////////////

function checkTime (thisTime) {

var now2 = new Date();

var thisTime2 = now2.getTime();

if (thisTime2 > thisTime + 1000) {w.close()}

};

Maybe you should wait for more feedback … because this approach seems a bit strange.

Have you also asked over at http://ps-scripts.com/bb/ ?