Photoshop scripting with Javascript

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Hi,
I am running javascript where i am scripting photoshop as well.
I am using following code :

var strtRulerUnits = preferences.rulerUnits;
var strtTypeUnits = preferences.typeUnits;
preferences.rulerUnits = Units.INCHES;
preferences.typeUnits = TypeUnits.POINTS;

But, i am getting error that preferences is undefined.
Why i am getting error new preferences?

Any help would be appreciated.

Thanks.

Posted 28-Jun-12 3:04am

akkanshagupta

Updated 28-Jun-12 4:46am

Rajeev Jayaram

v4

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ZurdoDev 28-Jun-12 9:07am

Where is preferences defined?

Tim Corey 28-Jun-12 9:16am

Please use the "Improve question" link to add to your question. Please reserve the Solutions section for answers to your question.

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enhzflep · Answer 1 · 2012-06-28T04:39:00

Solution 2

Looking at this[^] page, it appears that you need to prefix preferences with app -

i.e

JavaScript

var strtRulerUnits = app.preferences.rulerUnits;

Posted 28-Jun-12 4:39am

enhzflep

Comments

akkanshagupta 29-Jun-12 1:10am

If I am using var strRulerUnits = app.preference.rulerUnits; then I am getting app undefined error.

enhzflep 29-Jun-12 1:19am

Looks like you're doing something wrong then. The example code I linked to does this (uses the app object)
What version of PS are you using? CS2, CS3?
What does Adobe's forums have to say on the matter?

akkanshagupta 29-Jun-12 1:23am

I am using Photoshop 7.0, and i am writing this code in external Javascript, and running that script through HTML file.

enhzflep 29-Jun-12 1:27am

Ah-hah! In that case, you can't access these properties..
Photoshop has a JavaScript engine built-in. To get access to these properties, you need to be running the script WITH Photoshop.
The approach you're taking is akin to running a Javascript in Opera or Chrome that gets the size of the window from an instance of Internet Explorer - not going to happen.

akkanshagupta 29-Jun-12 1:29am

Please give me any idea how to run script with photoshop. I am doing this first time, and don't have any idea about this.

Regards.

enhzflep 29-Jun-12 1:32am

Meh, you and me both, you and me both.
I haven't used Photoshop since I bought 6.0 for a company I was working for.

Search the web for examples, there's oodles of them.
Good luck!

Member 15621487 · Answer 2 · 2022-05-01T16:43:00

Solution 3

app.preferences.rulerUnits = Units.INCHES

etc. CM , MM , POINTS , PIXELS

Posted 1-May-22 16:43pm

Member 15621487

Updated 1-May-22 19:27pm

Comments

OriginalGriff 2-May-22 1:29am

While I applaud your urge to help people, it's a good idea to stick to new questions, rather than 10 year old ones. After that amount of time, it's unlikely that the original poster is at all interested in the problem any more!
Answering old questions can be seen as rep-point hunting, which is a form of site abuse. The more trigger happy amongst us will start the process of banning you from the site if you aren't careful. Stick to new questions and you'll be fine.

And when you do, posting non-solutions is a fine way to get you kicked as well ...