ExportOptionsSaveForWeb LOSSY problems

[lfcorullon]

Hello, scripters and experts.

I'm having problems trying to generate GIF files using JS in Photoshop.

I set all my properties but PS just ignore my lossy = 0 and sets it to 60.

So, I'm having bad quality GIF files.

I already read about this problem, but couldn't find any solution.

Could you help me? Thanks in advance.

var myGIFname = String(app.activeDocument.fullName).replace(".mov" , ".gif");
var myExportOptions = new ExportOptionsSaveForWeb();
    myExportOptions.lossy = 0;
    myExportOptions.format = SaveDocumentType.COMPUSERVEGIF;
    myExportOptions.colorReduction = ColorReductionType.SELECTIVE;
    myExportOptions.includeProfile = false;
    myExportOptions.colors = 128;
    myExportOptions.dither = Dither.DIFFUSION;
    myExportOptions.ditherAmount = 100;
    myExportOptions.transparency = true;
    myExportOptions.transparencyDither = Dither.NONE;
    myExportOptions.interlaced = false;
    myExportOptions.webSnap = 0;
app.activeDocument.exportDocument(File(myGIFname) , ExportType.SAVEFORWEB , myExportOptions);

[r-bin]

try the solution from this topic For animated gifs: gifsicle sets Photoshops SaveForWeb parameter "lossy" to 60 that cannot be change...

[Kukurykus]

https://forums.adobe.com/thread/2420895

[lfcorullon]

I tried it. But I receive an error saying "This functionality may not be available in this version of Photoshop".

I downloaded the eventListener, install it, and copy the code generated in the log.

But, as mentioned, it stops in the first executeAction method.

[Kukurykus · Accepted solution]

That's not that code you should look for in SL. It is very long and should start from var idExpr = charIDToTypeID( "Expr" );

[lfcorullon]

Thank you. I'll try it!

>

[lfcorullon]

That's it. Thank you so much!

[r-bin]

Why do you need SL?
It is better to show your full code that produces an error.