If You install Adobe Plug-in Scriptlistener anything you do in Photoshop the can be recorded in an action will be recorded into two log files on your desktop one is recorded in VBS code the other in JavaScript Code. It is Action Manager code all variables used are hard coded in the recorded code. Many Photoshop Features are not covered in Adobe Photoshop JavaScript DOM. So often Action manager Code need to be used when scripting Photoshop. Code recorded by the Scriptlistener Plug-in copied into your Photoshop and often changer into function so variables can be passed to the coded functions.
ScriptListener code is not easy to read or understand. If you have seen cord in some Photoshop JavaScript you did not understand its was most likely Action manager code.
To add the current active selection as a linked layer mask could look something like this;
// =======linked layer Mask========================================
function linkedlayerMask() {
var idMk = charIDToTypeID( "Mk " );
var desc3 = new ActionDescriptor();
var idNw = charIDToTypeID( "Nw " );
var idChnl = charIDToTypeID( "Chnl" );
desc3.putClass( idNw, idChnl );
var idAt = charIDToTypeID( "At " );
var ref3 = new ActionReference();
var idChnl = charIDToTypeID( "Chnl" );
var idChnl = charIDToTypeID( "Chnl" );
var idMsk = charIDToTypeID( "Msk " );
ref3.putEnumerated( idChnl, idChnl, idMsk );
desc3.putReference( idAt, ref3 );
var idUsng = charIDToTypeID( "Usng" );
var idUsrM = charIDToTypeID( "UsrM" );
var idRvlS = charIDToTypeID( "RvlS" );
desc3.putEnumerated( idUsng, idUsrM, idRvlS );
executeAction( idMk, desc3, DialogModes.NO );
}
// =======Un linked layer Mask========================================
function layerMask() {
var idMk = charIDToTypeID( "Mk " );
var desc3 = new ActionDescriptor();
var idNw = charIDToTypeID( "Nw " );
var idChnl = charIDToTypeID( "Chnl" );
desc3.putClass( idNw, idChnl );
var idAt = charIDToTypeID( "At " );
var ref3 = new ActionReference();
var idChnl = charIDToTypeID( "Chnl" );
var idChnl = charIDToTypeID( "Chnl" );
var idMsk = charIDToTypeID( "Msk " );
ref3.putEnumerated( idChnl, idChnl, idMsk );
desc3.putReference( idAt, ref3 );
var idUsng = charIDToTypeID( "Usng" );
var idUsrM = charIDToTypeID( "UsrM" );
var idRvlS = charIDToTypeID( "RvlS" );
desc3.putEnumerated( idUsng, idUsrM, idRvlS );
executeAction( idMk, desc3, DialogModes.NO );
// =======================================================
var idsetd = charIDToTypeID( "setd" );
var desc2 = new ActionDescriptor();
var idnull = charIDToTypeID( "null" );
var ref1 = new ActionReference();
var idLyr = charIDToTypeID( "Lyr " );
var idOrdn = charIDToTypeID( "Ordn" );
var idTrgt = charIDToTypeID( "Trgt" );
ref1.putEnumerated( idLyr, idOrdn, idTrgt );
desc2.putReference( idnull, ref1 );
var idT = charIDToTypeID( "T " );
var desc3 = new ActionDescriptor();
var idUsrs = charIDToTypeID( "Usrs" );
desc3.putBoolean( idUsrs, false );
var idLyr = charIDToTypeID( "Lyr " );
desc2.putObject( idT, idLyr, desc3 );
executeAction( idsetd, desc2, DialogModes.NO );
}
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