## Graphics Adapter Device Driver Reference

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### VIDEO Protect-Mode Interface

This chapter describes the VIDEO Protect-Mode-Interface (VIDEOPMI) in OS/2 Warp. This interface is an extension of the VESA SVPMI standard.

The VIDEOPMI interface also provides parameters for the adapter virtualization in multiple DOS sessions and a number of support functions. The adapter description is provided as a flat file with an extension of . PMI. The main goal of the VIDEOPMI interface is to centralize all of the SetMode-related services and provide a consistent interface that is not dependent on availability of BIOS service or OEM utilities.

The following list includes the topics covered in this chapter:

.PMI file
Limitations of the PMI
Code vs. PMI
How to Customize the PMI Subsystem for Your Device
Supported Modes
Monitor Timings Support
Save and Restore State
Adapter Configuration
PMI Language Elements
PMI Sections