## Presentation Device Driver Reference for OS/2

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### OS2_PM_DRV_ENABLE: Subfunction 02h - FillPhysicalDeviceBlock Return Value - rc

rc (LONG) - returns Return codes.

The handling routine should return a LONG integer. Valid values are:

-1 Error.
Other Handle or pointer, ulStateInfo, to the physical device block. This pointer is passed back to the presentation driver in subsequent calls to the OS2_PM_DRV_ENABLE subfunctions 04h and 05h.

Note: The name, pDCI, is used in place of ulStateInfo in some source code.