CDC::HIMETRICtoDP
Visual Studio 2005
Use this function when you convert HIMETRIC sizes from OLE to pixels.
void HIMETRICtoDP( LPSIZE lpSize ) const;
Parameters
If the mapping mode of the device context object is MM_LOENGLISH, MM_HIENGLISH, MM_LOMETRIC or MM_HIMETRIC, then the conversion is based on the number of pixels in the physical inch. If the mapping mode is one of the other non-constrained modes (e.g., MM_TEXT), then the conversion is based on the number of pixels in the logical inch.