#include WpsStylesClass.jsx; 
 var /*WpsStyleClass*/ wpsParagraphStyles = new WpsStylesClass({root: app.activeDocument, type: "paragraph"}); 
 var /*Array*/styleGroups = wpsParagraphStyles.styleGroups; 
 // properties(styleGroups[0]) -> parent,parentName,name,styles,path 

var /*Object*/p = {type: "paragraph", parent: app.activeDocument} 
var /*Array*/allStyles = wpsDdlStylesContentList({type: "paragraph", parent: app.activeDocument}); 
var /*Int*/l = allStyles.length; 
var /*Array*/styleList = new Array(l); 
for (var j = 0; j < l; j++) 
    styleList[j] = allStyles[j].value; 
alert(styleList.join("\n")); 
 
/*Array*/function wpsDdlStylesContentList(/*Object*/p) 
{ 
    var /*Array*/allStylesA = []; 
     
    getAllStyles({type: p.type, name: "/", parent: p.parent, styles: allStylesA}); 
    return allStylesA; 
    /*Void*/function getAllStyles(/*Object*/p) 
    { 
        try 
        { 
            /*Style*/style = null, /*StyleGroup*/ styleGroup = 0; 
             
            for (var j = 0; j < p.parent[p.type + "Styles"].length; j++) 
            { 
                style = p.parent[p.type + "Styles"][j]; 
                p.styles.push({name: p.name + style.name,  value: p.name + style.name, id: style.id}); 
            } 
            for (var j = 0; j < p.parent[p.type + "StyleGroups"].length; j++) 
            { 
                styleGroup = p.parent[p.type + "StyleGroups"][j]; 
                getAllStyles({type: p.type, name: p.name + styleGroup.name + "/", parent: styleGroup, styles: p.styles}); 
            } 
         
        } 
        catch (error) 
        { 
            // wpsHandleError(error, $.stack, "wpsDdlStylesContentList");  
       } 
    } 
 
} 

/* 
	 
	BUG with InDesign 2020 version 15.0.0.155 
	BUG with InDesign 2020 version 15.0.1.209 
	 
	checkmarks of listbox items are NOT visible. 
	 
	Property checked can have 3 values: 
	 
	undefined 
	false 
	true 
	 
	See discussion here: 
	https://community.adobe.com/t5/InDesign/listitem-checked-on-indesign-15-0-2020/m-p/10734040#M160426 
	 
*/ 
 
#targetengine "Uwe-Listbox-Test" 
 
var x = new Window ("dialog","test win", [0,0,150,150]); 
var y = x.add("listbox",[10,10,140,116]); 
 
for (var n=0; n<7; n++) 
{ 
	y.add( "item", "test " + n ); 
	 
	// Leave the first two items as undefined: 
	if( n < 2 ){ continue }; 
	 
	// Set the third item to checked: 
	if( n == 2 ){ y.items[n].checked = true ; continue }; 
	 
	// All other items to unchecked: 
	y.items[n].checked = false ; 
	 
}; 
 
for( var n=0; n<y.items.length; n++ ) 
{ 
	$.writeln( n +"\t"+ y.items[n].checked ); 
}; 
 
x.center(); 
x.show(); 

var tempFrame = app.documents[0].textFrames.add 
({ geometricBounds : [0,0,100,100] , contents : "Test" }); 
var selectedParaStyle = tempFrame.paragraphs[0].appliedParagraphStyle; 
 
tempFrame.remove(); 
 
$.writeln( selectedParaStyle.name +"\r"+ selectedParaStyle.id +"\r"+ selectedParaStyle.parent );