Gtk.IconView.prototype.set_drag_dest_item

function set_drag_dest_item(path:Gtk.TreePath, pos:Gtk.IconViewDropPosition):void {
    // Gjs wrapper for gtk_icon_view_set_drag_dest_item()
}

Sets the item that is highlighted for feedback.

Since 2.8

path

The path of the item to highlight, or null.

pos

Specifies where to drop, relative to the item