Hello,

I am having a problem trying to save the current document in Photoshop to the PNG format.

I am trying to use the Document class from the com.adobe.photoshop package.

The code that I have looks like this:

public function saveAsPNG(filePath:String):Boolean

{

      var saveOpts:PNGSaveOptions = new PNGSaveOptions;

      saveOpts.interlaced = false;

      var file:File = new File(filePath);

      var currentDoc:Document = Photoshop.app.activeDocument;

      currentDoc.saveAs(file,saveOpts,true);

      return true;

}

I call this function in response to a button click in the UI. However when the execution gets to , I get the following error:

Error: General Photoshop error occurred. This functionality may not be available in this version of Photoshop.

This error looks like the one that occurs when I try to access Photoshop DOM from a system event handler (as discussed here), so I tried to apply the workaround recommended for system events in my function:

public function saveAsPNG(filePath:String):Boolean

{

      var obj: * = PsEventScrubber.getInstance().forceClean( this, saveAsPNG, arguments );

      if ( obj != null )

      {

            return (obj as Boolean);

      }

      var saveOpts:PNGSaveOptions = new PNGSaveOptions;

      saveOpts.interlaced = false;

      var file:File = new File(filePath);

      var currentDoc:Document = Photoshop.app.activeDocument;

      currentDoc.saveAs(file,saveOpts,true);

      return true;

}

Now I get an exception, and I can see that the logger is called with the following message:

[RequestResult after parsing result="[RequestResult status="PlugPlugRequestFailed" data=null]" ]

I also tried to use ActionDescriptors to do the same job, but I got the same problems as with the CSAW API. The code for the ActionDescriptor approach is below:

public function saveAsPNG1(filePath:String):Boolean

{

      var obj: * = PsEventScrubber.getInstance().forceClean( this, saveAsPNG1, arguments );

      if ( obj != null )

     {

          return (obj as Boolean);

     }

     var key_in:int = com.adobe.csawlib.photoshop.Photoshop.app.charIDToTypeID("In  ");

     var key_png_interlaced:int = com.adobe.csawlib.photoshop.Photoshop.app.charIDToTypeID("PGIT");

     var enum_png_interlaced_none:int = com.adobe.csawlib.photoshop.Photoshop.app.charIDToTypeID("PGIN");

     var key_png_filter:int = com.adobe.csawlib.photoshop.Photoshop.app.charIDToTypeID("PNGf");

     var enum_png_filter_adaptive:int = com.adobe.csawlib.photoshop.Photoshop.app.charIDToTypeID("PGAd");

     var key_copy:int = com.adobe.csawlib.photoshop.Photoshop.app.charIDToTypeID("Cpy ");

     var key_extn:int = com.adobe.csawlib.photoshop.Photoshop.app.charIDToTypeID("Extn");

     var key_as:int = com.adobe.csawlib.photoshop.Photoshop.app.charIDToTypeID("As  ");

     var class_png_format:int = com.adobe.csawlib.photoshop.Photoshop.app.charIDToTypeID("PNGF");

     var event_save:int = com.adobe.csawlib.photoshop.Photoshop.app.charIDToTypeID("save");

     var result:ActionDescriptor = null;

     var desc:ActionDescriptor = new ActionDescriptor;

     var PNGDescriptor:ActionDescriptor = new ActionDescriptor;

     var file:File = new File(filePath);

     desc.putPath(key_in,file);

     desc.putBoolean(key_copy,true);

     desc.putBoolean(key_extn,true);

     PNGDescriptor.putEnumerated( key_png_interlaced, key_png_interlaced, enum_png_interlaced_none);

     PNGDescriptor.putEnumerated(key_png_filter, key_png_filter, enum_png_filter_adaptive);

     desc.putObject(key_as,class_png_format,PNGDescriptor);

     result = com.adobe.csawlib.photoshop.Photoshop.app.executeAction(event_save,de sc);

     return true;

}

With this approach the error occurs then the execution gets to the line

...

desc.putPath(key_in,file);

...

Am I doing something wrong here?

Has anyone tried to use the Document::saveAs API in Photoshop?

Thank you in advance,

Anatoly