WMI is the abbreviation of Windows Management Instrumentation in English. Its main functions are: access some information and services of the local host, and can manage remote computers (of course you must have sufficient permissions), such as: restart, shut down, close processes, and create processes. wait.
Of course this article is applicable to vbscript
Microsoft official information:
Examples are as follows:
To use WMI, project first - refer to Microsoft WMI Scripting V1.1 Library
Get graphics card/sound card/memory/operating system information
Sound card information
Private Sub wmiSoundDeviceInfo()Dim wmiObjSet As SWbemObjectSetDim obj As SWbemObjectSet wmiObjSet = GetObject(winmgmts:{impersonationLevel=impersonate}). _InstancesOf(Win32_SoundDevice)On Local Error Resume NextFor Each obj In wmiObjSetMsgBox obj.ProductNameNextEnd SubGraphics card information
Private Sub wmiVideoControllerInfo()Dim wmiObjSet As SWbemObjectSetDim obj As SWbemObjectSet wmiObjSet = GetObject(winmgmts:{impersonationLevel=impersonate}). _InstancesOf(Win32_VideoController)On Local Error Resume NextFor Each obj In wmiObjSetMsgBox obj.VideoProcessorNextEnd Submemory information
Private Sub wmiPhysicalMemoryInfo()Dim wmiObjSet As SWbemObjectSetDim obj As SWbemObjectSet wmiObjSet = GetObject(winmgmts:{impersonationLevel=impersonate}). _InstancesOf(Win32_PhysicalMemory)On Local Error Resume NextFor Each objItem In wmiObjSetDebug.Print BankLabel: & objItem.BankLabelDebug.Print Capacity: & objItem.CapacityDebug.Print Caption: & objItem.CaptionDebug.Print CreationClassName: & objItem.CreationClassNameDebug.Print DataWidth: & objItem.DataWidthDebug.Print Description: & objItem.DescriptionDebug.Print DeviceLocator: & objItem.DeviceLocatorDebug.Print FormFactor: & objItem.FormFactorDebug.Print HotSwappable: & objItem.HotSwappableDebug.Print InstallDate: & objItem.InstallDateDebug.Print InterleaveDataDepth: & objItem.InterleaveDataDepthDebug.Print InterleavePosition: & objItem.InterleavePositionDebug.Print Manufacturer: & objItem.ManufacturerDebug.Print MemoryType: & objItem.MemoryTypeDebug.Print Model: & objItem.ModelDebug.Print Name: & objItem.nameDebug.Print OtherIdentifyingInfo: & objItem.OtherIdentifyingInfoDebug.Print PartNumber: & objItem.PartNumberDebug.Print PositionInRow: & objItem.PositionInRowDebug.Print PoweredOn: & objItem.PoweredOnDebug.Print Removable: & objItem.RemovableDebug.Print Replaceable: & objItem.ReplaceableDebug.Print SerialNumber: & objItem.SerialNumberDebug.Print SKU: & objItem.SKUDebug.Print Speed: & objItem.SpeedDebug.Print Status: & objItem.StatusDebug.Print Tag: & objItem.TagDebug.Print TotalWidth: & objItem.TotalWidthDebug.Print TypeDetail: & objItem.TypeDetailDebug.Print Version: & objItem. VersionNextEnd SubOperating system information
Private Sub Command1_Click()Dim wmiObjSet As SWbemObjectSetDim obj As SWbemObjectDim msg As StringDim dtb As StringDim d As StringDim t As StringDim bias As LongOn Local Error Resume NextSet wmiObjSet = GetObject(winmgmts:{impersonationLevel=impersonate}).InstancesOf(Win32_OperatingSystem)For Each obj In wmiObjSetMsgBox The system you are currently using is & obj.CaptionNextEnd Subillustrate:
You may find a rule. In fact, WMI uses the WIN32_class library name to extract information. The following table is the description of various hardware classes of Microsoft's operating system.
Information about other WMI managed classes is in
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wmisdk/wmi/accessing_hardware_and_software_through_wmi.asp
You can find it, which also has some sample code.
Simple Win_32 class table
Win32 Classes
Microsoft® Windows® classes give you the means to manipulate a variety of objects. The following table identifies the categories of Windows classes.
Category Description
Computer system hardware Classes that represent hardware related objects.
Operating system Classes that represent operating system related objects.
Installed applications Classes that represent software related objects.
WMI service management Classes used to manage WMI.
Performance counters Classes that represent formatted and raw performance data.
Hardware
Computer System Hardware Classes
he Cooling Devices subcategory groups classes that represent instrumentable fans, temperature probes, and refrigeration devices.
Class Description
Win32_Fan Represents the properties of a fan device in the computer system.
Win32_HeatPipe Represents the properties of a heat pipe cooling device.
Win32_Refrigeration Represents the properties of a refrigeration device.
Win32_TemperatureProbe Represents the properties of a temperature sensor (electronic thermometer).
Input Device Classes
The Input Devices subcategory groups classes that represent keyboards and pointing devices.
Class Description
Win32_Keyboard Represents a keyboard installed on a Windows system.
Win32_PointingDevice Represents an input device used to point to and select regions on the display of a Windows computer system.
Mass Storage Classes
Classes in the Mass Storage subcategory represent storage devices such as hard disk drives, CD-ROM drives, and tape drives.
Class Description
Win32_AutochkSetting Represents the settings for the autocheck operation of a disk.
Win32_CDROMDrive Represents a CD-ROM drive on a Windows computer system.
Win32_DiskDrive Represents a physical disk drive as seen by a computer running the Windows operating system.
Win32_FloppyDrive Manages the capabilities of a floppy disk drive.
Win32_PhysicalMedia Represents any type of documentation or storage medium.
Win32_TapeDrive Represents a tape drive on a Windows computer.
Motherboard, Controller, and Port Classes
The Motherboard, Controllers, and Ports subcategory groups classes that represent system devices. Examples include system memory, cache memory, and controllers.
Class Description
Win32_1394Controller Represents the capabilities and management of a 1394 controller.
Win32_1394ControllerDevice Relates the high-speed serial bus (IEEE 1394 Firewire) Controller and the CIM_LogicalDevice instance connected to it.
Win32_AllocatedResource Relates a logical device to a system resource.
Win32_AssociatedProcessorMemory Relates a processor and its cache memory.
Win32_BaseBoard Represents a baseboard (also known as a motherboard or system board).
Win32_BIOS Represents the attributes of the computer system’s basic input/output services (BIOS) that are installed on the computer.
Win32_Bus Represents a physical bus as seen by a Windows operating system.
Win32_CacheMemory Represents cache memory (internal and external) on a computer system.
Win32_ControllerHasHub Represents the hubs downstream from the universal serial bus (USB) controller.
Win32_DeviceBus Relates a system bus and a logical device using the bus.
Win32_DeviceMemoryAddress Represents a device memory address on a Windows system.
Win32_DeviceSettings Relates a logical device and a setting that can be applied to it.
Win32_DMAChannel Represents a direct memory access (DMA) channel on a Windows computer system.
Win32_FloppyController Represents the capabilities and management capacity of a floppy disk drive controller.
Win32_IDEController Represents the capabilities of an Integrated Drive Electronics (IDE) controller device.
Win32_IDEControllerDevice Association class that relates an IDE controller and the logical device.
Win32_InfraredDevice Represents the capabilities and management of an infrared device.
Win32_IRQResource Represents an interrupt request line (IRQ) number on a Windows computer system.
Win32_MemoryArray Represents the properties of the computer system memory array and mapped addresses.
Win32_MemoryArrayLocation Relates a logical memory array and the physical memory array upon which it exists.
Win32_MemoryDevice Represents the properties of a computer system’s memory device along with it’s associated mapped addresses.
Win32_MemoryDeviceArray Relates a memory device and the memory array in which it resides.
Win32_MemoryDeviceLocation Association class that relates a memory device and the physical memory on which it exists.
Win32_MotherboardDevice Represents a device that contains the central components of the Windows computer system.
Win32_OnBoardDevice Represents common adapter devices built into the motherboard (system board).
Win32_ParallelPort Represents the properties of a parallel port on a Windows computer system.
Win32_PCMCIAController Manages the capabilities of a Personal Computer Memory Card Interface Adapter (PCMCIA) controller device.
Win32_PhysicalMemory Represents a physical memory device located on a computer as available to the operating system.
Win32_PhysicalMemoryArray Represents details about the computer system’s physical memory.
Win32_PhysicalMemoryLocation Relates an array of physical memory and its physical memory.
Win32_PNPAllocatedResource Represents an association between logical devices and system resources.
Win32_PNPDevice Relates a device (known to Configuration Manager as a PNPEntity), and the function it performs.
Win32_PNPEntity Represents the properties of a Plug and Play device.
Win32_PortConnector Represents physical connection ports, such as DB-25 pin male, Centronics, and PS/2.
Win32_PortResource Represents an I/O port on a Windows computer system.
Win32_Processor Represents a device capable of interpreting a sequence of machine instructions on a Windows computer system.
Win32_SCSIController Represents a small computer system interface (SCSI) controller on a Windows system.
Win32_SCSIControllerDevice Relates a SCSI controller and the logical device (disk drive) connected to it.
Win32_SerialPort Represents a serial port on a Windows system.
Win32_SerialPortConfiguration Represents the settings for data transmission on a Windows serial port.
Win32_SerialPortSetting Relates a serial port and its configuration settings.
Win32_SMBIOSMemory Represents the capabilities and management of memory-related logical devices.
Win32_SoundDevice Represents the properties of a sound device on a Windows computer system.
Win32_SystemBIOS Relates a computer system (including data such as startup properties, time zones, boot configurations, or administrative passwords) and a system BIOS (services, languages, system management properties).
Win32_SystemDriverPNPEntity Relates a Plug and Play device on the Windows computer system and the driver that supports the Plug and Play device.
Win32_SystemEnclosure Represents the properties associated with a physical system enclosure.
Win32_SystemMemoryResource Represents a system memory resource on a Windows system.
Win32_SystemSlot Represents physical connection points including ports, motherboard slots and peripherals, and proprietary connections points.
Win32_USBController Manages the capabilities of a universal serial bus (USB) controller.
Win32_USBControllerDevice Relates a USB controller and the CIM_LogicalDevice instances connected to it.
Win32_USBHub Represents the management characteristics of a USB hub.
Networking Device Classes
The Networking Devices subcategory groups classes that represent the network interface controller, its configurations, and its settings.
Class Description
Win32_NetworkAdapter Represents a network adapter on a Windows system.
Win32_NetworkAdapterConfiguration Represents the attributes and behaviors of a network adapter. The class is not guaranteed to be supported after the ratification of the Distributed Management Task Force (DMTF) CIM network specification.
Win32_NetworkAdapterSetting Relates a network adapter and its configuration settings.
Power Classes
The Power subcategory groups classes that represent power supplies, batteries, and events related to these devices.
Class Description
Win32_AssociatedBattery Relates a logical device and the battery it is using.
Win32_Battery Represents a battery connected to the computer system.
Win32_CurrentProbe Represents the properties of a current monitoring sensor (ammeter).
Win32_PortableBattery Represents the properties of a portable battery, such as one used for a notebook computer.
Win32_PowerManagementEvent Represents power management events resulting from power state changes.
Win32_UninterruptiblePowerSupply Represents the capabilities and management capacity of an uninterruptible power supply (UPS).
Win32_VoltageProbe Represents the properties of a voltage sensor (electronic voltmeter).
Printing Classes
The Printing subcategory groups classes that represent printers, printer configurations, and print jobs.
Class Description
Win32_DriverForDevice Relates a printer to a printer driver.
Win32_Printer Represents a device connected to a Windows computer system that is capable of reproducing a visual image on a medium.
Win32_PrinterConfiguration Defines the configuration for a printer device.
Win32_PrinterController Relates a printer and the local device to which the printer is connected.
Win32_PrinterDriver Represents the drivers for a Win32_Printer instance.
Win32_PrinterDriverDll Relates a local printer and its driver file (not the driver itself).
Win32_PrinterSetting Relates a printer and its configuration settings.
Win32_PrintJob Represents a print job generated by a Windows application.
Win32_TCPIPPrinterPort Represents a TCP/IP service access point.
Telephony Classes
The Telephony subcategory groups classes that represent plain old telephone modem devices and their associated serial connections.
Class Description
Win32_POTSModem Represents the services and characteristics of a Plain Old Telephone Service (POTS) modem on a Windows system.
Win32_POTSModemToSerialPort Relates a modem and the serial port the modem uses.
Video and Monitor Classes
The Video and Monitors subcategory groups classes that represent monitors, video cards, and their associated settings.
Class Description
Win32_DesktopMonitor Represents the type of monitor or display device attached to the computer system.
Win32_DisplayConfiguration Represents configuration information for the display device on a Windows system. This class is obsolete. In place of this class, use the properties in the Win32_VideoController, Win32_DesktopMonitor, and CIM_VideoControllerResolution classes.
Win32_DisplayControllerConfiguration Represents the video adapter configuration information of a Windows system. This class is obsolete. In place of this class, use the properties in the Win32_VideoController, Win32_DesktopMonitor, and CIM_VideoControllerResolution classes.
Win32_VideoConfiguration This class has been eliminated from Windows XP and later; attempts to use it will generate a fatal error. In place of this class, use the properties contained in the Win32_VideoController, Win32_DesktopMonitor, and CIM_VideoControllerResolution classes.
Win32_VideoController Represents the capabilities and management capacity of the video controller on a Windows computer system.
Win32_VideoSettings Relates a video controller and video settings that can be applied to it.
Each class has a corresponding data structure such as
graphics card
class Win32_VideoController : CIM_PCVideoController
{
uint16 AcceleratorCapabilities[];
string AdapterCompatibility;
stringAdapterDACType;
uint32 AdapterRAM;
uint16 Availability;
string CapabilityDescriptions[];
string Caption;
uint32 ColorTableEntries;
uint32 ConfigManagerErrorCode;
boolean ConfigManagerUserConfig;
string CreationClassName;
uint32 CurrentBitsPerPixel;
uint32 CurrentHorizontalResolution;
uint64 CurrentNumberOfColors;
uint32 CurrentNumberOfColumns;
uint32 CurrentNumberOfRows;
uint32 CurrentRefreshRate;
uint16 CurrentScanMode;
uint32 CurrentVerticalResolution;
string Description;
string DeviceID;
uint32 DeviceSpecificPens;
uint32 DitherType;
datetime DriverDate;
string DriverVersion;
boolean ErrorCleared;
string ErrorDescription;
uint32 ICMIntent;
uint32 ICMMethod;
string InfFilename;
string InfSection;
datetime InstallDate;
string InstalledDisplayDrivers;
uint32 LastErrorCode;
uint32 MaxMemorySupported;
uint32 MaxNumberControlled;
uint32 MaxRefreshRate;
uint32 MinRefreshRate;
boolean Monochrome;
string Name;
uint16 NumberOfColorPlanes;
uint32 NumberOfVideoPages;
string PNPDeviceID;
uint16 PowerManagementCapabilities[];
boolean PowerManagementSupported;
uint16 ProtocolSupported;
uint32 ReservedSystemPaletteEntries;
uint32 SpecificationVersion;
string Status;
uint16 StatusInfo;
string SystemCreationClassName;
string SystemName;
uint32 SystemPaletteEntries;
datetime TimeOfLastReset;
uint16 VideoArchitecture;
uint16 VideoMemoryType;
uint16 VideoMode;
string VideoModeDescription;
string VideoProcessor;
};
Sound card, etc.
class Win32_SoundDevice : CIM_LogicalDevice
{
uint16 Availability;
string Caption;
uint32 ConfigManagerErrorCode;
boolean ConfigManagerUserConfig;
string CreationClassName;
string Description;
string DeviceID;
uint16 DMABufferSize;
boolean ErrorCleared;
string ErrorDescription;
datetime InstallDate;
uint32 LastErrorCode;
string Manufacturer;
uint32 MPU401Address;
string Name;
string PNPDeviceID;
uint16 PowerManagementCapabilities[];
boolean PowerManagementSupported;
string ProductName;
string Status;
uint16 StatusInfo;
string SystemCreationClassName;
string SystemName;
};
class Win32_PrintJob : CIM_Job
{
string Caption;
string DataType;
string Description;
string Document;
string DriverName;
datetime ElapsedTime;
string HostPrintQueue;
datetime InstallDate;
uint32 JobId;
string JobStatus;
string Name;
string Notify;
string Owner;
uint32 PagesPrinted;
string Parameters;
string PrintProcessor;
uint32 Priority;
uint32 Size;
datetime StartTime;
string Status;
uint32 StatusMask;
datetime TimeSubmitted;
uint32 TotalPages;
datetime UntilTime;
};
like
Set wmiObjSet = GetObject(winmgmts:{impersonationLevel=impersonate}). _
InstancesOf(Win32_PrintJob)
You can get information such as printing task lists
For VB, API is mostly used to obtain system hardware and software information. Now we can use WMI to quickly achieve our goals. For example, obtaining driver/graphics card/shared information, etc. will become convenient and effective.