wmi CIM_OperatingSystem reference for Network Programming in .NET with C# & Visual Basic .NET (VB.NET)

WMI class ' CIM_OperatingSystem ' reference for C# and VB.NET

MOF Reference

[Description("An operating system is software/firmware that makes a computer system's hardware usable, and implements and/or manages the resources, file systems, processes, user interfaces, services, ... available on the computer system."): ToSubClass, AMENDMENT, LOCALE(1033)]
class CIM_OperatingSystem : CIM_LogicalElement
{
	[Description("The inherited Name property serves as key of an operating system instance within a computer system."): ToSubClass, key] string Name = NULL;
	[Description("CSCreationClassName contains the scoping computer system's creation class name."): ToSubClass] string CSCreationClassName;
	[Description("CSName contains the scoping computer system's name."): ToSubClass] string CSName;
	[Description("CreationClassName indicates the name of the class or the subclass used in the creation of an instance. When used with the other key properties of this class, this property allows all instances of this class and its subclasses to be uniquely identified."): ToSubClass] string CreationClassName;
	[Description("Boolean indicating whether the operating system is distributed across several computer system nodes. If so, these nodes should be grouped as a cluster."): ToSubClass] boolean Distributed;
	[Description("Number of kilobytes of physical memory currently unused and available"): ToSubClass] uint64 FreePhysicalMemory;
	[Description("Number of kilobytes of virtual memory currently unused and available. For example, this may be calculated by adding the amount of free RAM to the amount of free paging space (i.e., adding the properties, FreePhysicalMemory and FreeSpaceInPagingFiles)."): ToSubClass] uint64 FreeVirtualMemory;
	[Description("Maximum number of kilobytes of memory that can be allocated to a process. For operating systems with no virtual memory, this value is typically equal to the total amount of physical memory minus memory used by the BIOS and OS. For some operating systems, this value may be infinity - in which case, 0 should be entered. In other cases, this value could be a constant - for example, 2G or 4G."): ToSubClass] uint64 MaxProcessMemorySize;
	[Description("A integer indicating the type of operating system."): ToSubClass, Values{"Unknown", "Other", "MACOS", "ATTUNIX", "DGUX", "DECNT", "Digital Unix", "OpenVMS", "HPUX", "AIX", "MVS", "OS400", "OS/2", "JavaVM", "MSDOS", "WIN3x", "WIN95", "WIN98", "WINNT", "WINCE", "NCR3000", "NetWare", "OSF", "DC/OS", "Reliant UNIX", "SCO UnixWare", "SCO OpenServer", "Sequent", "IRIX", "Solaris", "SunOS", "U6000", "ASERIES", "TandemNSK", "TandemNT", "BS2000", "LINUX", "Lynx", "XENIX", "VM/ESA", "Interactive UNIX", "BSDUNIX", "FreeBSD", "NetBSD", "GNU Hurd", "OS9", "MACH Kernel", "Inferno", "QNX", "EPOC", "IxWorks", "VxWorks", "MiNT", "BeOS", "HP MPE", "NextStep", "PalmPilot", "Rhapsody", "Windows 2000", "Dedicated", "OS/390", "VSE", "TPF"}: ToSubClass] uint16 OSType;
	[Description("A string describing the manufacturer and operating system type - used when the operating system property, OSType, is set to 1 (\"Other\"). The format of the string inserted in OtherTypeDescription should be similar in format to the Values strings defined for OSType.  OtherTypeDescription should be set to NULL when OSType is any value other than 1."): ToSubClass] string OtherTypeDescription;
	[Description("A string describing the operating system's version number. The format of the version information is as follows: <Major Number>.<Minor Number>.<Revision> or <Major Number>.<Minor Number>.<Revision Letter>."): ToSubClass] string Version;
	[Description("Operating system's notion of the local date and time of day."): ToSubClass] datetime LocalDateTime;
	[Description("CurrentTimeZone indicates the number of minutes the operating system is offset from Greenwich Mean Time. Either the number is positive, negative or zero."): ToSubClass] sint16 CurrentTimeZone;
	[Description("The total number of kilobytes that can be stored in the operating system's paging files. Note that this number does not represent the actual physical size of the paging file on disk.  0 indicates that there are no paging files."): ToSubClass] uint64 SizeStoredInPagingFiles;
	[Description("The total number of KBytes that can be mapped into the OperatingSystem's paging files without causing any other pages to be swapped out. 0 indicates that there are no paging files."): ToSubClass] uint64 FreeSpaceInPagingFiles;
	[Description("Time when the operating system was last booted"): ToSubClass] datetime LastBootUpTime;
	[Description("Maximum number of process contexts the operating system can support. If there is no fixed maximum, the value should be 0. On systems that have a fixed maximum, this object can help diagnose failures that occur when the maximum is reached. If unknown, enter -1."): ToSubClass] uint32 MaxNumberOfProcesses;
	[Description("Number of user licenses for the operating system. If unlimited, enter 0. If unknown, enter -1."): ToSubClass] uint32 NumberOfLicensedUsers;
	[Description("Number of process contexts currently loaded or running on the operating system."): ToSubClass] uint32 NumberOfProcesses;
	[Description("Number of user sessions for which the operating system is currently storing state information"): ToSubClass] uint32 NumberOfUsers;
	[Description("Total swap space in kilobytes. This value may be NULL (unspecified) if swap space is not distinguished from page files.  However, some operating systems distinguish these concepts.  For example, in UNIX, whole processes can be 'swapped out' when the free page list falls and remains below a specified amount."): ToSubClass] uint64 TotalSwapSpaceSize;
	[Description("Number of kilobytes of virtual memory. For example, this may be calculated by adding the amount of total RAM to the amount of paging space (i.e., adding the amount of memory in/aggregated by the computer system to the property, SizeStoredInPagingFiles."): ToSubClass] uint64 TotalVirtualMemorySize;
	[Description("The total amount of physical memory (in Kbytes) available to the OperatingSystem. This value does not necessarily indicate the true amount of physical memory, but what is reported to the OperatingSystem as available to it."): ToSubClass] uint64 TotalVisibleMemorySize;
	[Description("Requests a reboot of the operating system. The return value should be 0 if the request was successfully executed, 1 if the request is not supported and some other value if an error occurred.  The strings to which the ValueMap contents are 'translated' may also be specified in the subclass as a Values array qualifier."): ToSubClass] uint32 Reboot();
	[Description("Requests a shutdown of the operating system. The return value should be 0 if the request was successfully executed, 1 if the request is not supported and some other value if an error occurred. It is up to the implementation or subclass of operating system to establish dependencies between the Shutdown and Reboot methods, and for example, to provide more sophisticated capabilities such as scheduled shutdown/reboot, etc."): ToSubClass] uint32 Shutdown();
};

Class properties:

CIM_OperatingSystem.Caption
CIM_OperatingSystem.CreationClassName
CIM_OperatingSystem.CSCreationClassName
CIM_OperatingSystem.CSName
CIM_OperatingSystem.CurrentTimeZone
CIM_OperatingSystem.Description
CIM_OperatingSystem.Distributed
CIM_OperatingSystem.FreePhysicalMemory
CIM_OperatingSystem.FreeSpaceInPagingFiles
CIM_OperatingSystem.FreeVirtualMemory
CIM_OperatingSystem.InstallDate
CIM_OperatingSystem.LastBootUpTime
CIM_OperatingSystem.LocalDateTime
CIM_OperatingSystem.MaxNumberOfProcesses
CIM_OperatingSystem.MaxProcessMemorySize
CIM_OperatingSystem.Name
CIM_OperatingSystem.NumberOfLicensedUsers
CIM_OperatingSystem.NumberOfProcesses
CIM_OperatingSystem.NumberOfUsers
CIM_OperatingSystem.OSType
CIM_OperatingSystem.OtherTypeDescription
CIM_OperatingSystem.SizeStoredInPagingFiles
CIM_OperatingSystem.Status
CIM_OperatingSystem.TotalSwapSpaceSize
CIM_OperatingSystem.TotalVirtualMemorySize
CIM_OperatingSystem.TotalVisibleMemorySize
CIM_OperatingSystem.Version

WMI is a huge subject, so therefore it is practically impossible to provide a comprehensive example program that covers anything. However, the book �Network programming in .NET� (Buy at Amazon UK) (Buy at Amazon US) covers a much wider scope of WMI, and explains how to leverage it to access the bounty of information held within this vast, yet simple object model.

Articles

Contact us

Please use FireFox to view this page

WMI class ' CIM_OperatingSystem ' reference for C# and VB.NET

MOF Reference

Class properties: