## Presentation Device Driver Reference for OS/2

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### Transform Functions

GreConvert
GreGetGlobalViewingXform
GreGetGraphicsField
GreGetModelXform
GreGetPageUnits
GreGetPageViewport
GreGetViewingLimits
GreGetWindowViewportXform
GreMultiplyXforms
GreRestoreXform
GreRestoreXformData
GreSaveXform
GreSaveXformData
GreSetGlobalViewingXform
GreSetGraphicsField
GreSetModelXform
GreSetPageUnits
GreSetPageViewport
GreSetViewingLimits
GreSetWindowViewportXform

For a complete description of each Simulated function, see Mandatory and Simulated Graphics Engine Function Reference. The functions are listed alphabetically in the index table for that chapter.