ExtendScript: how to get screens size?

Question

Hello,

I'm trying to get working an old jsx script + applescript that split my main screen with the two frontmost Photoshop documents - it was very useful for comparing two documents.
This script worked with an old Photoshop CS6 but it gives an error on Photoshop 2025 when I try to retrieve my screen sizes.
I was using :

app.getCustomOptions('screensSize').getString(0)

Do you know any Photoshop 2025 compatible equivalent?

r-bin · Accepted Answer

Sorry, I forgot to answer your question. This is a part of my script and the results.

	var myProp = 'screensSize';
	var myString = 'Hello';
	var desc = new ActionDescriptor();
	app.putCustomOptions(myProp, desc, false);
	
	alert(app.getCustomOptions('screensSize')); // --> [ActionDescriptor] : [count]'0' [typename]'ActionDescriptor'
	alert(app.getCustomOptions('screensSize').getString(0)); // --> ERROR 8500 : property doesn't exist

I'll try with your links.

Sorry, I forgot to answer your question. This is a part of my script and the results.

	var myProp = 'screensSize';
	var myString = 'Hello';
	var desc = new ActionDescriptor();
	app.putCustomOptions(myProp, desc, false);
	
	alert(app.getCustomOptions('screensSize')); // --> [ActionDescriptor] : [count]'0' [typename]'ActionDescriptor'
	alert(app.getCustomOptions('screensSize').getString(0)); // --> ERROR 8500 : property doesn't exist

I'll try with your links.

By @frmorel

First, you use getString(), but I don't see putString().

Second, don't use 0 for the key(id) argument. more

Ciccillotto · Answer

If I understand correctly, do you need this?

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