Revision as of 19:40, 27 June 2016

Reprint Courtesy of International Business Machines Corporation, © International Business Machines Corporation

OS/2 Version Compatibility Considerations

The following table lists information that has been added to or changed in this documentation since the availability of OS/2 Warp, Version 3. When writing a device driver, you will want to take into consideration these particular changes, which may affect the downward compatibility of these items.

Item Added or Changed	Date Item Added or Changed	Compatibility of Addition or Change
Virtual Video Device Driver in DBCS chapter	March 1996	OS/2 Warp, Version 3.1 and higher
DSPINSTL Script	November 1995	OS/2 Warp, Version 3 and higher
Checklist for Palette Management Support	November 1995	OS/2 Warp, Version 3 and higher
Protect-Mode Interface (entire PMI architecture)	April 1995	OS/2 Warp, Version 3 and higher
Protect-Mode Interface (architecture for the .PMI file, a subset of PMI)	September 1994 Revised November 1995	OS/2, Version 2.1
VIDEOPMI.DLL Information	April 1995 Revised November 1995	OS/2 Warp, Version 3 and higher
VIDEOPMI.DLL Exported Functions, descriptions in Chapter 16	April 1995 Reformatted as APIs November 1995 and 2 new APIs added	OS/2 Warp, Version 3 and higher

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