Custom Object Popup list drop down menu combo box - Unity3D

EditorGUILayout.Popup EditorGUILayout.IntPopup,FloatPopup...
No selection event, no generic objects, no way to format button appearance, no way to set separator or disable items...

public class EditorGUILayoutEx
  {

    private static object _CustomPopup_SelectedObject;
    private static int _CustomPopup_ControlID = -1;
    private static int _CustomPopup_SelectedIndex = -1;

    public delegate void MenuCallaback <T> (int selectedIndex,T SelectedObject,int controlID);

    public delegate void EventCallback (int ownerControlID,Event e);

Use like this (returning Index or Generic Object with Arrays or Lists as values):

int selectedIndex;
selectedIndex=ws.winx.editor.extensions.EditorGUILayoutEx.CustomPopup(new GUIContent("State1"),selectedIndex,new GUIContent[]{new GUIContent("mile1*"),new GUIContent("mile1/kitic")},new int[]{22,33},onMenuSelectionIndex);

String selectedObject2;
selectedObject2=ws.winx.editor.extensions.EditorGUILayoutEx.CustomObjectPopup(new GUIContent("State1"),selectedObject2,new GUIContent[]{new GUIContent("mile"),new GUIContent("mile/kitic")},new List(){ "One", "Two" },onMenuSelectionObject);

String selectedObject3;
selectedObject3=ws.winx.editor.extensions.EditorGUILayoutEx.CustomObjectPopup(new GUIContent("State1"),selectedObject3,new GUIContent[]{new GUIContent("mile"),new GUIContent("mile/kitic")},new string[]{"mile","kitic"},onMenuSelectionObject);

MyClass selectedObject3;
selectedObject3=ws.winx.editor.extensions.EditorGUILayoutEx.CustomObjectPopup(new GUIContent("State1"),selectedObject3,new GUIContent[]{new GUIContent("mile"),new GUIContent("mile/kitic")},new MyClass[]{new MyClass,new MyClass},onMenuSelectionMyClass);
     

Handle events:

 void onMenuSelectionObject (int si,string obj,int cid) {
   Debug.Log ("Selected at inx: " + si+" selection="+obj+" cid:"+cid);
  }


  void onMenuSelectionIndex (int si,int obj,int cid) {
   Debug.Log ("Selected at inx: " + si+" selection="+obj+" cid:"+cid);
  }

void onMenuSelectionMyClass (int si,MyClass obj,int cid) {
   Debug.Log ("Selected at inx: " + si+" selection="+obj+" cid:"+cid);
  }