## Presentation Device Driver Reference for OS/2

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### OS2_PM_DRV_ENABLE: Subfunction 0Ch - InstallPMEngineDisplayHooks Parameter - pParam1

pParam1 (PLONG) - input A pointer to the following data structure:

ulVersion Version number in binary coded decimal (BCD) of the graphics engine.

comptype A structure consisting of two short flag variables:

fEngine32Bit This flag will always be true.

fDriver32Bit This flag is set if the current display driver is a 32-bit driver.