var ctrlman = m_Map.GetCtrlMan();
var uiman = ctrlman.GetUIMan();
uiman.SetMessage("MessageBox Test", 50000);

#include "CXCtrlMan.h"
#include "CXUIMan.h"
#include "CXUIStaticText.h"

CXCtrlMan ctrlman = m_Map.GetCtrlMan();
CXUIMan uiman = ctrlman.GetUIMan();
uiman.SetMessage(_T("MessageBox Test"), 50000);