Retrieves DISPID_AMBIENT_SCALEUNITS, the container's ambient units (such as inches or centimeters) for labeling displays.
HRESULT GetAmbientScaleUnits(
   BSTR& bstrScaleUnits
); 
Parameters
- bstrScaleUnits
 The property DISPID_AMBIENT_SCALEUNITS.
Return Value
One of the standard HRESULT values.
Requirements
Header: atlctl.h