Returns the virtual hard disk online compact mode.
PRL_RESULT PrlVmDevHd_GetOnlineCompactMode( PRL_HANDLE hVmDev, PRL_ONLINE_COMPACT_MODE_PTR pnMode );
PrlApiVm.h
PRL_RESULT. Possible values:
PRL_ERR_INVALID_ARG - invalid handle or null pointer was passed.
PRL_ERR_SUCCESS - function completed successfully.