var ctrlman = m_Map.GetCtrlMan();
var controlstate = ctrlman.GetControlState();
var dpsize = controlstate.GetSizeDP();

var SetCYSize = 220;
dpsize.SetCY(SetCYSize);
var width_py = dpsize.GetCY();

alert(width_py);

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

CXSize dpsize = ctrlstate.GetSizeDP(); 
long width_px = dpsize.get__CY()/2 - 250;

long SetCySz = 220;	
dpsize.SetCY(SetCySz);
long height_px = dpsize.GetCY();

CString msg;
msg.Format(_T("height_px : [%lu]"), height_px);
AfxMessageBox(msg);