Scripting: How to Fill on a lock transparency without dialog box

doc.selection.fill(color, undefined, undefined, true);

Adobe has a Photoshop plug-in  named ScriptListener.  This plug-in is like an Action recorder it records Photoshop Steps you do in Photoshop.  However,  it does not create actions.  It just logs  the steps in two log file on your desktop.  One log is in JavaScript code the other log in VBS code.  It not very readable.   However, it can be used in your script instead of the DOM code you currently have  for fill.  

doc.selection.fill(color); 

Basically  you are filling an active current selection  in the Active Layer in the active  document if  your doc is the active document.  that is app.activeDocument.selection.fill(Color) so you need the Action manager code equivalent.

The code found was close.

app.activeDocument.selection.fill(app.foregroundColor); 

// =======================================================

var idFl = charIDToTypeID( "Fl  " );
    var desc18 = new ActionDescriptor();
    var idUsng = charIDToTypeID( "Usng" );
    var idFlCn = charIDToTypeID( "FlCn" );
    var idFrgC = charIDToTypeID( "FrgC" );
    desc18.putEnumerated( idUsng, idFlCn, idFrgC );
    var idOpct = charIDToTypeID( "Opct" );
    var idPrc = charIDToTypeID( "#Prc" );
    desc18.putUnitDouble( idOpct, idPrc, 100.000000 );
    var idMd = charIDToTypeID( "Md  " );
    var idBlnM = charIDToTypeID( "BlnM" );
    var idNrml = charIDToTypeID( "Nrml" );
    desc18.putEnumerated( idMd, idBlnM, idNrml );
    var idPrsT = charIDToTypeID( "PrsT" );
    desc18.putBoolean( idPrsT, true );
executeAction( idFl, desc18, DialogModes.NO );

The Problem is the scriptlistener code is like action steps which  have hard coded settings.  They get away with it for they are filling with the foreground color which they can change first.  You need to be able to pass the Color and its opacity. You would need to turn the Action Manager code into a function the has parameters.

Here is what the Action manager code would look like for a red fill normal mode 100% opacity.

// =======================================================
var idFl = charIDToTypeID( "Fl  " );
    var desc27 = new ActionDescriptor();
    var idUsng = charIDToTypeID( "Usng" );
    var idFlCn = charIDToTypeID( "FlCn" );
    var idClr = charIDToTypeID( "Clr " );
    desc27.putEnumerated( idUsng, idFlCn, idClr );
    var idClr = charIDToTypeID( "Clr " );
        var desc28 = new ActionDescriptor();
        var idRd = charIDToTypeID( "Rd  " );
        desc28.putDouble( idRd, 255.000000 );
        var idGrn = charIDToTypeID( "Grn " );
        desc28.putDouble( idGrn, 0.000000 );
        var idBl = charIDToTypeID( "Bl  " );
        desc28.putDouble( idBl, 0.000000 );
    var idRGBC = charIDToTypeID( "RGBC" );
    desc27.putObject( idClr, idRGBC, desc28 );
    var idOpct = charIDToTypeID( "Opct" );
    var idPrc = charIDToTypeID( "#Prc" );
    desc27.putUnitDouble( idOpct, idPrc, 100.000000 );
    var idMd = charIDToTypeID( "Md  " );
    var idBlnM = charIDToTypeID( "BlnM" );
    var idNrml = charIDToTypeID( "Nrml" );
    desc27.putEnumerated( idMd, idBlnM, idNrml );
executeAction( idFl, desc27, DialogModes.NO );

Not very readable.  There is a script "Clean SL"  that can clean that up make it more readable and convert it to code and functions.

// =======================================================
fill(255, 0, 0, 100);
function fill(red, Grn, blue, opacity) {
	var descriptor = new ActionDescriptor();
	var descriptor2 = new ActionDescriptor();

	descriptor.putEnumerated( stringIDToTypeID( "using" ), stringIDToTypeID( "fillContents" ), stringIDToTypeID( "color" ));
	descriptor2.putDouble( stringIDToTypeID( "red" ), red );
	descriptor2.putDouble( charIDToTypeID( "Grn " ), Grn );
	descriptor2.putDouble( stringIDToTypeID( "blue" ), blue );
	descriptor.putObject( stringIDToTypeID( "color" ), stringIDToTypeID( "RGBColor" ), descriptor2 );
	descriptor.putUnitDouble( stringIDToTypeID( "opacity" ), stringIDToTypeID( "percentUnit" ), opacity );
	descriptor.putEnumerated( stringIDToTypeID( "mode" ), stringIDToTypeID( "blendMode" ), stringIDToTypeID( "normal" ));
	executeAction( stringIDToTypeID( "fill" ), descriptor, DialogModes.NO );