function HistoryPrev()
{
    var ctrlman = m_Map.GetCtrlMan();
    var ctrlstate = ctrlman.GetControlState();
    ctrlstate.HistoryPrev();
}

#include "CXCtrlMan.h"
#include "CXMasterControlState.h"

void CSampleDlg::OnSmHistoryprev()
{
	CXCtrlMan ctrlman = m_Map.GetCtrlMan();
	CXMasterControlState ctrlstate =  ctrlman.GetControlState();
	ctrlstate.HistoryPrev();
	
}