[MSDN Library April 2000] OpenPortEx (62.9382889200561%)
MSDN Library - April 2000 > DDK Documentation > Windows 95 DDK > Windows 95 Documentation > Design Guide > Printer Driver Overview > Reference
[MSDN Library April 2000] OpenPortEx (37.5620347394541%)
MSDN Library - April 2000 > DDK Documentation > Windows NT 4.0 DDK > Graphics Drivers > Reference > Part 3: Print Component Support > Chapter 12 Printer Monitor Functions and Structures