var ctrl = m_Map.GetCtrlMan();
var ctrlstate = ctrl.GetControlState();

ctrlstate.SetZoomScale(0.7);

#include "CXCtrlMan.h"
#include "CXControlState.h"

CXCtrlMan ctrlman = m_Map.GetCtrlMan();
CXControlState ctrlstate = ctrlman.GetControlState();

ctrlstate.SetZoom(10);