to integrate a new RTE in modx

$e = &$modx->Event; 
switch ($e->name) {
    case "OnRichTextEditorRegister": // register the name
        $e->output("XStandard");
        break;
 
    case "OnRichTextEditorInit": // Initialize the editor
        if($editor == "XStandard") {
            // The editor is active
            $elementList = implode(",", $elements); // Comma-separated list of elements
 
            //$html = "<!-- Add all the necessary code here -->";
            
            $html = <<< CODE
                <object type="application/x-xstandard" id="editor1" width="100%" height="400">
                <param name="Value" value="Hello World!" />
                </object>
            CODE;
            
            $e->output($html);
        }       
        break;
}