## Presentation Device Driver Reference for OS/2

[prev][next][parent][TOC]

### OS2_PM_DRV_ENABLE: Subfunction 04h - DisablePhysicalDeviceBlock - Parameters

ulSubfunction (ULONG) - input 04H.

ulParam1 (ULONG) - input A handle or pointer, ulStateInfo, to physical device block.

pParam2 (PLONG) - input Not used.

rc (LONG) - returns Return codes.

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

0 Successful
-1 Error