[MSDN Library April 2000] Porting Viewports, Screenmasks, and Scrboxes (76.8308080808081%)
MSDN Library - April 2000 > Platform SDK > Graphics and Multimedia Services > OpenGL > Porting to OpenGL > Introduction to Porting to OpenGL for Windows NT, Windows 2000, and Windows 95/98 > Special IRIS GL Porting Issues > Porting Code that Requires a Current Graphics Position