[MSDN Library June 1998] Optional Display Driver Functions (100%)
MSDN Library Visual Studio 6.0 > DDK Documentation > Microsoft Windows NT 4.0 DDK > Graphics Drivers > Design Guide > Part 2: Display and Video Miniport Drivers > Chapter 5 DDI Support in Display Drivers > Display Driver DDI Functions
[MSDN Library June 1998] Optional Graphics Driver Functions (52.9331168442987%)
MSDN Library Visual Studio 6.0 > DDK Documentation > Microsoft Windows NT 4.0 DDK > Graphics Drivers > Design Guide > Part 1: Graphics Drivers > Chapter 3 Supporting the DDI > Graphics Driver Function Support
[MSDN Library June 1998] Optional Printer Interface Driver Functions (43.3921650055371%)
MSDN Library Visual Studio 6.0 > DDK Documentation > Microsoft Windows NT 4.0 DDK > Graphics Drivers > Design Guide > Part 3: Print Components > Chapter 10 Supporting DDI Printing and User Interface Functions > Supporting Printer Interface Driver Functions
[MSDN Library June 1998] Optional Ease-of-Use Features (27.9736136878994%)
MSDN Library Visual Studio 6.0 > Specifications > Platforms > Windows Guidelines for Accessible Software Design > The Microsoft Windows Guidelines for Accessible Software Design > Summary of Recommendations
[MSDN Library June 1998] Optional Tag Values (26.3634241575418%)
MSDN Library Visual Studio 6.0 > DDK Documentation > Windows 95 Device Driver Kit > Design and Implementation Guide > Image Color Matching and Printer Drivers in Windows 95 > Overview of ICC 3.0 Profile Tags Used by Windows 95