Not able to check if a group item has a over print fill.

Yes you are correct. The individual items inside the group are having over print. But if the objects path item or raster item are directly in the document, I am able to check the over print fill. But when they are part of a group item I am not able to do the same. When I try to do the same for objects inside a group item I get the object as undefined.

Code:

for (iii=0 ; iii<doc.pageItems.length ; iii++) {
 
   switch ( doc.pageItems[iii].typename ) {
    case "PlacedItem":
   
     if ( ! doc.pageItems[iii].embedded ) {
      errors.push(doc.name + " has linked file " + doc.pageItems[iii]);
     }
     if(doc.pageItems[iii].overprint == true) {
      errors.push("-Over print found in the following object : " + doc.pageItems[iii].typename);
     }
    break;
    case "RasterItem":
    if ( ! doc.pageItems[iii].embedded ) {
      errors.push(doc.name + " has linked file " + doc.pageItems[iii]);
     }
    
    if(doc.pageItems[iii].overprint == true ) {
      errors.push("-Over print found in the raster item");
     
    }
    break;
    case "CompoundPathItem" :
    
    break;
    case "GraphItem" :
   
    break;
    case "GroupItem" :
    // when I get a group item over here I need to get into the objects inside the group item and do over print fill check.
    break;
    case "LegacyTextItem" :
     errors.push("-Legacy text found ");
    break;
    case "MeshItem" :
   
    break;
    case "PathItem" :
   
    if(doc.pageItems[iii].overprintFill == true  ) {
      errors.push("-Over print found in the image");
     
    }
    
    break;
    case "PlacedItem" :
    
    break;
    case "PluginItem" :
    
    break;
    case "RasterItem" :
     if(doc.pageItems[iii].overprint == true) {
      errors.push("-Over print found in the following object : " + doc.pageItems[iii].typename);
     }
    break;
    case "SymbolItem" :
   
    break;
    case "TextFrame" :
   
             
     if(doc.pageItems[iii].textRange.length > 0) {
      var itemType = doc.pageItems[iii];
      if ( doc.pageItems[iii].converted == false) {
       errors.push("-Legacy text found ");
      }
      else if(doc.pageItems[iii].textRange.overprintFill == true || doc.pageItems[iii].textRange.overprintStroke == true) {
       errors.push("-Text over print found " + doc.pageItems[iii].contents);
      }
     }      
    break;
   }
  }

When the case is group item,

I used the below piece of code

doc.pageItems[iii].pageItems[0].overprint

This was giving undefined, the object actually is path item inside the group item, but the overprint method doesn't works with this path item object.