SIZE m_sizeNatural;
Remarks
The physical size of the control in HIMETRIC units (each unit is 0.01 millimeters). This size is fixed, while the size in m_sizeExtent is scaled by the display.
You can convert the size to pixels with the global function AtlHiMetricToPixel.
CComControl Overview | Class Members
See Also CComControl::m_sizeExtent, CComControl::m_rcPos, SIZE