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Win32_DesktopMonitor class

The Win32_DesktopMonitor WMI class represents the type of monitor or display device attached to the computer system. Starting with Windows Vista, properties of this class replace Win32_DisplayConfiguration.

Starting with Windows Vista, hardware that is not compatible with Windows Display Driver Model (WDDM) returns inaccurate property values for instances of this class.

Windows Server 2003 and Windows XP:  This class returns data supplied by hardware compatible with Windows Device Driver Model (WDDM).

The following syntax is simplified from Managed Object Format (MOF) code and includes all of the inherited properties. Properties are listed in alphabetic order, not MOF order.

Syntax

[Provider("CIMWin32")]class Win32_DesktopMonitor : CIM_DesktopMonitor
{
  uint16   Availability;
  uint32   Bandwidth;
  string   Caption;
  uint32   ConfigManagerErrorCode;
  boolean  ConfigManagerUserConfig;
  string   CreationClassName;
  string   Description;
  string   DeviceID;
  uint16   DisplayType;
  boolean  ErrorCleared;
  string   ErrorDescription;
  datetime InstallDate;
  boolean  IsLocked;
  uint32   LastErrorCode;
  string   MonitorManufacturer;
  string   MonitorType;
  string   Name;
  uint32   PixelsPerXLogicalInch;
  uint32   PixelsPerYLogicalInch;
  string   PNPDeviceID;
  uint16   PowerManagementCapabilities[];
  boolean  PowerManagementSupported;
  uint32   ScreenHeight;
  uint32   ScreenWidth;
  string   Status;
  uint16   StatusInfo;
  string   SystemCreationClassName;
  string   SystemName;
};

Members

The Win32_DesktopMonitor class has these types of members:

Methods

The Win32_DesktopMonitor class has these methods.

MethodDescription
Reset

Not implemented. To implement this method, see the Reset method in CIM_DesktopMonitor for documentation.

SetPowerState

Not implemented. To implement this method, see the SetPowerState method in CIM_DesktopMonitor for documentation.

 

Properties

The Win32_DesktopMonitor class has these properties.

Availability
Data type: uint16
Access type: Read-only

Availability and status of the device. Inherited from CIM_LogicalDevice.

ValueMeaning
1 (0x1)

Other

2 (0x2)

Unknown

3 (0x3)

Running or 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.

 

Bandwidth
Data type: uint32
Access type: Read-only

Monitor's bandwidth in megahertz. If unknown, enter 0 (zero). This property is inherited from CIM_DesktopMonitor.

Caption
Data type: string
Access type: Read-only

Short description of the object. This property is inherited from CIM_ManagedSystemElement.

ConfigManagerErrorCode
Data type: uint32
Access type: Read-only

Win32 Configuration Manager error code.

ValueMeaning
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 must 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.

 

ConfigManagerUserConfig
Data type: boolean
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: Key, 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.

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

Unique identifier of a desktop monitor. This property is inherited from CIM_LogicalDevice.

DisplayType
Data type: uint16
Access type: Read-only

Type of desktop monitor or CRT. This property is inherited from CIM_DesktopMonitor.

ValueMeaning
0

Unknown

1

Other

2

Multiscan Color

3

Multiscan Monochrome

4

Fixed Frequency Color

5

Fixed Frequency Monochrome

 

ErrorCleared
Data type: boolean
Access type: Read-only

If TRUE, the error reported in LastErrorCode 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, and information on any corrective actions that may be taken. This property is inherited from CIM_LogicalDevice.

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.

IsLocked
Data type: boolean
Access type: Read-only

If TRUE, the device is locked, preventing user input or output. This property is inherited from CIM_UserDevice.

LastErrorCode
Data type: uint32
Access type: Read-only

Last error code reported by the logical device. This property is inherited from CIM_LogicalDevice.

MonitorManufacturer
Data type: string
Access type: Read-only

Name of the monitor manufacturer.

Example: "NEC"

MonitorType
Data type: string
Access type: Read-only

Type of monitor.

Example: "NEC 5FGp"

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.

PixelsPerXLogicalInch
Data type: uint32
Access type: Read-only
Qualifiers: Units (Pixels per Logical Inch)

Resolution along the x-axis (horizontal direction) of the monitor.

PixelsPerYLogicalInch
Data type: uint32
Access type: Read-only
Qualifiers: Units (Pixels per Logical Inch)

Resolution along the y-axis (vertical direction) of the monitor.

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.

ValueMeaning
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 Designing Managed Object Format (MOF) Classes.

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.

 

PowerManagementSupported
Data type: boolean
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.

ScreenHeight
Data type: uint32
Access type: Read-only

Logical height of the display in screen coordinates. This property is inherited from CIM_DesktopMonitor.

ScreenWidth
Data type: uint32
Access type: Read-only

Logical width of the display in screen coordinates. This property is inherited from CIM_DesktopMonitor.

Status
Data type: string
Access type: Read-only

Current status of the object. Various operational and nonoperational statuses can be defined. Operational statuses include: "OK", "Degraded", and "Pred Fail" (an element, such as a SMART-enabled hard disk drive, may be functioning properly but predicting a failure in the near future). Nonoperational 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.

The values are:

"OK"
"Error"
"Degraded"
"Unknown"
"Pred Fail"
"Starting"
"Stopping"
"Service"
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.

ValueMeaning
1 (0x1)

Other

2 (0x2)

Unknown

3 (0x3)

Enabled

4 (0x4)

Disabled

5 (0x5)

Not Applicable

 

SystemCreationClassName
Data type: string
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.

Remarks

The Win32_DesktopMonitor class is derived from CIM_DesktopMonitor, which derives from CIM_Display. CIM_Display is derived from CIM_UserDevice, which derives from CIM_LogicalDevice.

Examples

For script code examples, see WMI Tasks for Scripts and Applications and the TechNet ScriptCenter Script Repository.

For C++ code examples, see WMI C++ Application Examples.

Requirements

Minimum supported client

Windows XP

Minimum supported server

Windows Server 2003

Namespace

\root\CIMV2

MOF

CIMWin32.mof

DLL

CIMWin32.dll

See also

Computer System Hardware Classes

 

 

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