Description:
OS2_PM_DRV_ENABLE: FillLogicalDeviceBlock is called on the first occasion that a specific application or process opens a device context that uses the called presentation driver.
#include <os2.h> ULONG ulSubfunction; /* 01h. */ PULONG pParam1; PLONG pParam2; PLONG pDispatchTable; LONG rc; /* Return codes. */ rc = FillLogicalDeviceBlock(ulSubfunction, pParam1, pParam2, pDispatchTable);