One way of using CPAINT with qooxdoo. Here is an example of using CPAINT with qooxdoo:

var GACdata = [];
window.application.main = function()
{
  /* qooxdoo section */
 
  var c = {
    GACName    : {
      label : "Name",    
      type : "text", 
      width : 250,   
      sortable : true, 
      sortProp : "text"
      }
    };
 
  g = new QxListView(GACdata, c); // important don't define g with var
 
  g.setBorder(QxBorderObject.presets.shadow);
  g.setBackgroundColor("white");
  g.setWidth(450);
  g.setHeight(350);
  g.setLocation(20, 48);
 
  this.add(g);
 
  /* CPAINT section */
 
  var cp = new cpaint();
  cp.set_response_type('XML');
  cp.set_debug(false);
  cp.set_transfer_mode('get');
  cp.call('/data/DBAccess_CPaint_GetData.php', 'ExecSQL', fill_QxListView, 'DBAccess_Members_All');
}
 
function fill_QxListView(resultset){
  var rowsreturned = resultset.firstChild.childNodes.length;
  var i;
  for (i=1;i < rowsreturned; i++) {           
    GACdata.push({ GACName : 
      {text : resultset.getElementsByTagName("Name").item(i).firstChild.nodeValue });
};
g.update();  // refresh listview