通过ManagementClass 获得显卡的一些基本信息(Win32_VideoController )
2006-08-01 13:28
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class Win32_VideoController : CIM_PCVideoController
{
uint16 AcceleratorCapabilities[];
string AdapterCompatibility;
string AdapterDACType;
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;
};Methods
The Win32_VideoController class defines the following methods.| Method | Description |
|---|---|
| Reset | Not implemented. To implement this method, see the Reset method in CIM_PCVideoController for documentation. |
| SetPowerState | Not implemented. To implement this method, see the SetPowerState method in CIM_PCVideoController for documentation. |
Properties
The Win32_VideoController class has the following properties.AcceleratorCapabilities Data type: uint16 array
Access type: Read-only
Array of graphics and 3D capabilities of the video controller. This property is inherited from CIM_VideoController.
| Value | Meaning |
|---|---|
| 0 | Unknown |
| 1 | Other |
| 2 | Graphics Accelerator |
| 3 | 3D Accelerator |
Access type: Read-only
General chip set used for this controller to compare compatibilities with the system.
AdapterDACType Data type: string
Access type: Read-only
Name or identifier of the digital-to-analog converter (DAC) chip. The character set of this property is alphanumeric.
AdapterRAM Data type: uint32
Access type: Read-only
Qualifiers: Units(Bytes)
Memory size of the video adapter.
Example: 64000
Availability Data type: uint16
Access type: Read-only
Availability and status of the device. Inherited from CIM_LogicalDevice.
| Value | Meaning |
|---|---|
| 1 0x1 | Other |
| 2 0x2 | Unknown |
| 3 0x3 | Running/Full Power |
| 4 0x4 | Warning |
| 5 0x5 | In Test |
| 6 0x6 | Not Applicable |
| 7 0x7 | Power Off |
| 8 0x8 | Off Line |
| 9 0x9 | Off Duty |
| 10 0xA | Degraded |
| 11 0xB | Not Installed |
| 12 0xC | Install Error |
| 13 0xD | Power Save - Unknown The device is known to be in a power save mode, but its exact status is unknown. |
| 14 0xE | Power Save - Low Power Mode The device is in a power save state but still functioning, and may exhibit degraded performance. |
| 15 0xF | Power Save - Standby The device is not functioning but could be brought to full power quickly. |
| 16 0x10 | Power Cycle |
| 17 0x11 | Power Save - Warning The device is in a warning state, though also in a power save mode. |
Access type: Read-only
Free-form strings providing more detailed explanations for any of the video accelerator features indicated in the AcceleratorCapabilities array. Note, each entry of this array is related to the entry in the AcceleratorCapabilities array that is located at the same index. This property is inherited from CIM_VideoController.
Caption Data type: string
Access type: Read-only
Qualifiers: MaxLen(64)
Short description (one-line string) of the object. This property is inherited from CIM_ManagedSystemElement.
ColorTableEntries Data type: uint32
Access type: Read-only
Size of the system's color table. The device must have a color depth of no more than 8 bits per pixel; otherwise, this property is not set.
Example: 256
ConfigManagerErrorCode Data type: uint32
Access type: Read-only
Win32 Configuration Manager error code.
| Value | Meaning |
|---|---|
| 0 0x0 | Device is working properly. |
| 1 0x1 | Device is not configured correctly. |
| 2 0x2 | Windows cannot load the driver for this device. |
| 3 0x3 | Driver for this device might be corrupted, or the system may be low on memory or other resources. |
| 4 0x4 | Device is not working properly. One of its drivers or the registry might be corrupted. |
| 5 0x5 | Driver for the device requires a resource that Windows cannot manage. |
| 6 0x6 | Boot configuration for the device conflicts with other devices. |
| 7 0x7 | Cannot filter. |
| 8 0x8 | Driver loader for the device is missing. |
| 9 0x9 | Device is not working properly; the controlling firmware is incorrectly reporting the resources for the device. |
| 10 0xA | Device cannot start. |
| 11 0xB | Device failed. |
| 12 0xC | Device cannot find enough free resources to use. |
| 13 0xD | Windows cannot verify the device's resources. |
| 14 0xE | Device cannot work properly until the computer is restarted. |
| 15 0xF | Device is not working properly due to a possible re-enumeration problem. |
| 16 0x10 | Windows cannot identify all of the resources that the device uses. |
| 17 0x11 | Device is requesting an unknown resource type. |
| 18 0x12 | Device drivers need to be reinstalled. |
| 19 0x13 | Failure using the VxD loader. |
| 20 0x14 | Registry might be corrupted. |
| 21 0x15 | System failure. If changing the device driver is ineffective, see the hardware documentation. Windows is removing the device. |
| 22 0x16 | Device is disabled. |
| 23 0x17 | System failure. If changing the device driver is ineffective, see the hardware documentation. |
| 24 0x18 | Device is not present, not working properly, or does not have all of its drivers installed. |
| 25 0x19 | Windows is still setting up the device. |
| 26 0x1A | Windows is still setting up the device. |
| 27 0x1B | Device does not have valid log configuration. |
| 28 0x1C | Device drivers are not installed. |
| 29 0x1D | Device is disabled; the device firmware did not provide the required resources. |
| 30 0x1E | Device is using an IRQ resource that another device is using. |
| 31 0x1F | Device is not working properly; Windows cannot load the required device drivers. |
Access type: Read-only
If TRUE, the device is using a user-defined configuration. This property is inherited from CIM_LogicalDevice.
CreationClassName Data type: string
Access type: Read-only
Qualifiers: MaxLen(256)
Name of the first concrete class to appear in the inheritance chain used in the creation of an instance. When used with the other key properties of the class, the property allows all instances of this class and its subclasses to be uniquely identified. This property is inherited from CIM_LogicalDevice.
CurrentBitsPerPixel Data type: uint32
Access type: Read-only
Qualifiers: Units(Bits)
Number of bits used to display each pixel. This property is inherited from CIM_VideoController.
CurrentHorizontalResolution Data type: uint32
Access type: Read-only
Qualifiers: Units(Pixels)
Current number of horizontal pixels. This property is inherited from CIM_VideoController.
CurrentNumberOfColors Data type: uint64
Access type: Read-only
Number of colors supported at the current resolution. This property is inherited from CIM_VideoController.
For information on using uint64 values in scripts, see Scripting in WMI.
CurrentNumberOfColumns Data type: uint32
Access type: Read-only
Number of columns for this video controller (if in character mode). Otherwise, enter 0. This property is inherited from CIM_VideoController.
CurrentNumberOfRows Data type: uint32
Access type: Read-only
Number of rows for this video controller (if in character mode). Otherwise, enter 0. This property is inherited from CIM_VideoController.
CurrentRefreshRate Data type: uint32
Access type: Read-only
Qualifiers: Units(Hertz)
Frequency at which the video controller refreshes the image for the monitor. A value of 0 indicates the default rate is being used, while 0xFFFFFFFF indicates the optimal rate is being used. This property is inherited from CIM_VideoController.
CurrentScanMode Data type: uint16
Access type: Read-only
Current scan mode. This property is inherited from CIM_VideoController.
| Value | Meaning |
|---|---|
| 1 | Other |
| 2 | Unknown |
| 3 | Interlaced |
| 4 | Non Interlaced |
Access type: Read-only
Qualifiers: Units(Pixels)
Current number of vertical pixels. This property is inherited from CIM_VideoController.
Description Data type: string
Access type: Read-only
Description of the object. This property is inherited from CIM_ManagedSystemElement.
DeviceID Data type: string
Access type: Read-only
Qualifiers: Key
Identifier (unique to the computer system) for this video controller. This property is inherited from CIM_LogicalDevice.
DeviceSpecificPens Data type: uint32
Access type: Read-only
Current number of device-specific pens. A value of 0xffff means that the device does not support pens.
Example: 3
DitherType Data type: uint32
Access type: Read-only
Dither type of the video controller. The property can be one of the predefined values, or a driver-defined value greater than or equal to 256. If line art dithering is chosen, the controller uses a dithering method that produces well-defined borders between black, white, and gray scalings. Line art dithering is not suitable for images that include continuous graduations in intensity and hue such as scanned photographs.
| Value | Meaning |
|---|---|
| 1 | No dithering |
| 2 | Dithering with a coarse brush |
| 3 | Dithering with a fine brush |
| 4 | Line art dithering |
| 5 | Device does gray scaling |
Access type: Read-only
Last modification date and time of the currently-installed video driver.
DriverVersion Data type: string
Access type: Read-only
Version number of the video driver.
ErrorCleared Data type: boolean
Access type: Read-only
If TRUE, the error reported in LastErrorCode property is now cleared. This property is inherited from CIM_LogicalDevice.
ErrorDescription Data type: string
Access type: Read-only
Free-form string supplying more information about the error recorded in LastErrorCode property, and information on any corrective actions that may be taken. This property is inherited from CIM_LogicalDevice.
ICMIntent Data type: uint32
Access type: Read-only
Specific value of one of the three possible color-matching methods or intents that should be used by default. This property is used primarily for non-ICM applications. ICM applications establish intents by using the ICM functions. This property can be a predefined value or a driver defined value greater than or equal to 256. Color matching based on saturation is the most appropriate choice for business graphs when dithering is not desired. Color matching based on contrast is the most appropriate choice for scanned or photographic images when dithering is desired. Color matching optimized to match the exact color requested is most appropriate for use with business logos or other images when an exact color match is desired.
| Value | Meaning |
|---|---|
| 1 | Saturation |
| 2 | Contrast |
| 3 | Exact Color |
Access type: Read-only
Method of handling ICM. For non-ICM applications, this property determines if ICM is enabled. For ICM applications, the system examines this property to determine how to handle ICM support. This property can be a predefined value or a driver-defined value greater than or equal to 256. The value determines which system handles image color matching.
| Value | Meaning |
|---|---|
| 1 | Disabled |
| 2 | Windows |
| 3 | Device Driver |
| 4 | Destination Device |
Access type: Read-only
Path to the video adapter's .inf file.
Example: "C:/WINNT/SYSTEM32/DRIVERS"
InfSection Data type: string
Access type: Read-only
Section of the .inf file where the Windows video information resides.
InstallDate Data type: datetime
Access type: Read-only
Date and time the object was installed. This property does not need a value to indicate that the object is installed. This property is inherited from CIM_ManagedSystemElement.
InstalledDisplayDrivers Data type: string
Access type: Read-only
Name of the installed display device driver.
LastErrorCode Data type: uint32
Access type: Read-only
Last error code reported by the logical device. This property is inherited from CIM_LogicalDevice.
MaxMemorySupported Data type: uint32
Access type: Read-only
Qualifiers: Units(Bytes)
Maximum amount of memory supported in bytes. This property is inherited from CIM_VideoController.
MaxNumberControlled Data type: uint32
Access type: Read-only
Maximum number of directly addressable entities supportable by this controller. A value of 0 should be used if the number is unknown. This property is inherited from CIM_Controller.
MaxRefreshRate Data type: uint32
Access type: Read-only
Qualifiers: Units(Hertz)
Maximum refresh rate of the video controller in hertz. This property is inherited from CIM_VideoController.
MinRefreshRate Data type: uint32
Access type: Read-only
Qualifiers: Units(Hertz)
Minimum refresh rate of the video controller in hertz. This property is inherited from CIM_VideoController.
Monochrome Data type: boolean
Access type: Read-only
If TRUE, gray scale is used to display images.
Name Data type: string
Access type: Read-only
Label by which the object is known. When subclassed, the property can be overridden to be a key property. This property is inherited from CIM_ManagedSystemElement.
NumberOfColorPlanes Data type: uint16
Access type: Read-only
Current number of color planes. If this value is not applicable for the current video configuration, enter 0. This property is inherited from CIM_PCVideoController.
NumberOfVideoPages Data type: uint32
Access type: Read-only
Number of video pages supported given the current resolutions and available memory. This property is inherited from CIM_VideoController.
PNPDeviceID Data type: string
Access type: Read-only
Windows Plug and Play device identifier of the logical device. This property is inherited from CIM_LogicalDevice.
Example: "*PNP030b"
PowerManagementCapabilities Data type: uint16 array
Access type: Read-only
Array of the specific power-related capabilities of a logical device. This property is inherited from CIM_LogicalDevice.
| Value | Meaning |
|---|---|
| 0 0x0 | Unknown |
| 1 0x1 | Not Supported |
| 2 0x2 | Disabled |
| 3 0x3 | Enabled The power management features are currently enabled but the exact feature set is unknown or the information is unavailable. |
| 4 0x4 | Power Saving Modes Entered Automatically The device can change its power state based on usage or other criteria. |
| 5 0x5 | Power State Settable The SetPowerState method is supported. This method is found on the parent CIM_LogicalDevice class and can be implemented. For more information, see Extending Your Management Capabilities. |
| 6 0x6 | Power Cycling Supported The SetPowerState method can be invoked with the PowerState parameter set to 5 (Power Cycle). |
| 7 0x7 | Timed Power On Supported The SetPowerState method can be invoked with the PowerState parameter set to 5 (Power Cycle) and Time set to a specific date and time, or interval, for power-on. |
Access type: Read-only
If TRUE, the device can be power-managed (can be put into suspend mode, and so on). The property does not indicate that power management features are currently enabled, only that the logical device is capable of power management. This property is inherited from CIM_LogicalDevice.
ProtocolSupported Data type: uint16
Access type: Read-only
Protocol used by the controller to access 'controlled' devices. This property is inherited from CIM_Controller. Values are:
| Value | Meaning |
|---|---|
| 1 0x1 | Other |
| 2 0x2 | Unknown |
| 3 0x3 | EISA |
| 4 0x4 | ISA |
| 5 0x5 | PCI |
| 6 0x6 | ATA/ATAPI |
| 7 0x7 | Flexible Diskette |
| 8 0x8 | 1496 |
| 9 0x9 | SCSI Parallel Interface |
| 10 0xA | SCSI Fibre Channel Protocol |
| 11 0xB | SCSI Serial Bus Protocol |
| 12 0xC | SCSI Serial Bus Protocol-2 (1394) |
| 13 0xD | SCSI Serial Storage Architecture |
| 14 0xE | VESA |
| 15 0xF | PCMCIA |
| 16 0x10 | Universal Serial Bus |
| 17 0x11 | Parallel Protocol |
| 18 0x12 | ESCON |
| 19 0x13 | Diagnostic |
| 20 0x14 | I2C |
| 21 0x15 | Power |
| 22 0x16 | HIPPI |
| 23 0x17 | MultiBus |
| 24 0x18 | VME |
| 25 0x19 | IPI |
| 26 0x1A | IEEE-488 |
| 27 0x1B | RS232 |
| 28 0x1C | IEEE 802.3 10BASE5 |
| 29 0x1D | IEEE 802.3 10BASE2 |
| 30 0x1E | IEEE 802.3 1BASE5 |
| 31 0x1F | IEEE 802.3 10BROAD36 |
| 32 0x20 | IEEE 802.3 100BASEVG |
| 33 0x21 | IEEE 802.5 Token-Ring |
| 34 0x22 | ANSI X3T9.5 FDDI |
| 35 0x23 | MCA |
| 36 0x24 | ESDI |
| 37 0x25 | IDE |
| 38 0x26 | CMD |
| 39 0x27 | ST506 |
| 40 0x28 | DSSI |
| 41 0x29 | QIC2 |
| 42 0x2A | Enhanced ATA/IDE |
| 43 0x2B | AGP |
| 44 0x2C | TWIRP (two-way infrared) |
| 45 0x2D | FIR (fast infrared) |
| 46 0x2E | SIR (serial infrared) |
| 47 0x2F | IrBus |
Access type: Read-only
Number of reserved entries in the system palette. The operating system may reserve entries to support standard colors for task bars and other desktop display items. This index is valid only if the device driver sets the RC_PALETTE bit in the RASTERCAPS index, and is available only if the driver is compatible with 16-bit Windows. If the system is not using a palette, ReservedSystemPaletteEntries is not set.
Example: 20
SpecificationVersion Data type: uint32
Access type: Read-only
Version number of the initialization data specification (upon which the structure is based).
Status Data type: string
Access type: Read-only
Qualifiers: MaxLen(10)
Current status of the object. Various operational and non-operational statuses can be defined. Operational statuses include: "OK", "Degraded", and "Pred Fail" (an element, such as a SMART-enabled hard drive, may be functioning properly but predicting a failure in the near future). Non-operational statuses include: "Error", "Starting", "Stopping", and "Service". The latter, "Service", could apply during mirror-resilvering of a disk, reload of a user permissions list, or other administrative work. Not all such work is online, yet the managed element is neither "OK" nor in one of the other states. This property is inherited from CIM_ManagedSystemElement.
Values are:
"OK"
"Error"
"Degraded"
"Unknown"
"Pred Fail"
"Starting"
"Stopping"
"Service"
"Stressed"
"NonRecover"
"No Contact"
"Lost Comm"
StatusInfo Data type: uint16
Access type: Read-only
State of the logical device. If this property does not apply to the logical device, the value 5 (Not Applicable) should be used. This property is inherited from CIM_LogicalDevice.
| Value | Meaning |
|---|---|
| 1 | Other |
| 2 | Unknown |
| 3 | Enabled |
| 4 | Disabled |
| 5 | Not Applicable |
Access type: Read-only
Value of the scoping computer's CreationClassName property. This property is inherited from CIM_LogicalDevice.
SystemName Data type: string
Access type: Read-only
Name of the scoping system. This property is inherited from CIM_LogicalDevice.
SystemPaletteEntries Data type: uint32
Access type: Read-only
Current number of color index entries in the system palette. This index is valid only if the device driver sets the RC_PALETTE bit in the RASTERCAPS index, and is available only if the driver is compatible with 16-bit Windows. If the system is not using a palette, SystemPaletteEntries is not set.
Example: 20
TimeOfLastReset Data type: datetime
Access type: Read-only
Date and time this controller was last reset. This could mean the controller was powered down, or reinitialized. This property is inherited from CIM_Controller.
VideoArchitecture Data type: uint16
Access type: Read-only
Type of video architecture. This property is inherited from CIM_PCVideoController.
| Value | Meaning |
|---|---|
| 1 | Other |
| 2 | Unknown |
| 3 | CGA |
| 4 | EGA |
| 5 | VGA |
| 6 | SVGA |
| 7 | MDA |
| 8 | HGC |
| 9 | MCGA |
| 10 | 8514A |
| 11 | XGA |
| 12 | Linear Frame Buffer |
| 160 | PC-98 |
Access type: Read-only
Type of video memory. This property is inherited from CIM_VideoController.
| Value | Meaning |
|---|---|
| 1 | Other |
| 2 | Unknown |
| 3 | VRAM |
| 4 | DRAM |
| 5 | SRAM |
| 6 | WRAM |
| 7 | EDO RAM |
| 8 | Burst Synchronous DRAM |
| 9 | Pipelined Burst SRAM |
| 10 | CDRAM |
| 11 | 3DRAM |
| 12 | SDRAM |
| 13 | SGRAM |
Access type: Read-only
Current video mode. This property is inherited from CIM_PCVideoController.
VideoModeDescription Data type: string
Access type: Read-only
Current resolution, color, and scan mode settings of the video controller.
Example: "1024 x 768 x 256 colors"
VideoProcessor Data type: string
Access type: Read-only
Free-form string describing the video processor. This property is inherited from CIM_VideoController.
Remarks
The Win32_VideoController class is derived from CIM_PCVideoController.Example Code
For script examples, see WMI Tasks for Scripts and Applications and the TechNet ScriptCenter Script Repository.For C++ example code, see WMI C++ Application Examples.
Requirements
| Client | Requires Windows XP, Windows 2000 Professional, or Windows NT Workstation 4.0 SP4 and later. |
|---|---|
| Server | Requires Windows Server 2003, Windows 2000 Server, or Windows NT Server 4.0 SP4 and later. |
| MOF | Declared in Cimwin32.mof. |
| DLL | Requires Cimwin32.dll. |
| Namespace | Defined in /root/cimv2. |
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