Determines the number of virtual printer ports in the specified virtual machine.
PRL_RESULT PrlVmCfg_GetParallelPortsCount( PRL_HANDLE hVmCfg, PRL_UINT32_PTR pnParallelPortsCount );
PrlApiVm.h
PRL_RESULT. Possible values:
PRL_ERR_INVALID_ARG - invalid handle or null pointer was passed.
PRL_ERR_SUCCESS - function completed successfully.