Msvm_Keyboard class
Represents a keyboard device. Keyboards are logical devices that are always present in a virtual machine, and thus are not allocated through a resource pool. One instance is always present in a virtual computer system.
The following syntax is simplified Managed Object Format (MOF) code, and it includes all of the inherited properties.
[Dynamic, Provider("VmmsWmiInstanceAndMethodProvider"), AMENDMENT]
class Msvm_Keyboard : CIM_UserDevice
{
string InstanceID;
string Caption = "Keyboard";
string Description = "Microsoft Virtual Keyboard";
string ElementName = "Keyboard";
datetime InstallDate;
string Name = "Keyboard";
uint16 OperationalStatus[] = { 2 };
string StatusDescriptions[] = { "OK" };
string Status;
uint16 HealthState = 5;
uint16 CommunicationStatus;
uint16 DetailedStatus;
uint16 OperatingStatus;
uint16 PrimaryStatus;
uint16 EnabledState = 5;
string OtherEnabledState;
uint16 RequestedState = 12;
uint16 EnabledDefault = 2;
datetime TimeOfLastStateChange;
uint16 AvailableRequestedStates[];
uint16 TransitioningToState;
string SystemCreationClassName = "Msvm_ComputerSystem";
string SystemName;
string CreationClassName = "Msvm_Keyboard";
string DeviceID;
boolean PowerManagementSupported;
uint16 PowerManagementCapabilities[];
uint16 Availability = 6;
uint16 StatusInfo;
uint32 LastErrorCode;
string ErrorDescription;
boolean ErrorCleared;
string OtherIdentifyingInfo[];
uint64 PowerOnHours;
uint64 TotalPowerOnHours;
string IdentifyingDescriptions[];
uint16 AdditionalAvailability[] = { 6 };
uint64 MaxQuiesceTime;
boolean IsLocked = False;
string Layout = "00000409";
uint16 NumberOfFunctionKeys = 12;
uint16 Password = 5;
boolean UnicodeSupported;
};
The Msvm_Keyboard class has these types of members:
The Msvm_Keyboard class has these methods.
Method | Description |
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EnableDevice | This method is not supported. |
IsKeyPressed | Retrieves the key state of a key. |
OnlineDevice | This method is not supported. |
PressKey | Simulates a key press. |
QuiesceDevice | This method is not supported. |
ReleaseKey | Simulates a key release. |
RequestStateChange | Requests that the state of the element be changed. |
Reset | Resets the virtual keyboard. |
RestoreProperties | This method is not supported. |
SaveProperties | This method is not supported. |
SetPowerState | This method is not supported. |
TypeCtrlAltDel | Simulates a Ctrl+Alt+Del key sequence. |
TypeKey | Simulates a press-release key sequence. |
TypeScancodes | Simulates a key sequence using scan codes. |
TypeText | Simulates a series of typed characters. |
The Msvm_Keyboard class has these properties.
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AdditionalAvailability
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Data type: uint16 array
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Access type: Read-only
Any additional availability and status of the device, beyond that specified in the Availability property. The Availability property denotes the primary status and availability of the device. This property is inherited from CIM_LogicalDevice.
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Availability
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Data type: uint16
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Access type: Read-only
The primary availability and status of the device. This property is inherited from CIM_LogicalDevice.
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AvailableRequestedStates
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Data type: uint16 array
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Access type: Read-only
Indicates the possible values for the RequestedState parameter of the RequestStateChange method. This property is inherited from CIM_EnabledLogicalElement, and it is always set to Null.
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Caption
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Data type: string
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Access type: Read-only
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Qualifiers: MaxLen (64)
A short description of the object. This property is inherited from CIM_ManagedElement.
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CommunicationStatus
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Data type: uint16
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Access type: Read-only
Indicates the ability of the instrumentation to communicate with the underlying managed element. A Null value indicates that this property is not implemented. This property is inherited from CIM_ManagedSystemElement.
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Unknown (0)
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Not Available (1)
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Communication OK (2)
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Lost Communication (3)
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No Contact (4)
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DMTF Reserved (..)
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Vendor Reserved (0x8000.. )
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CreationClassName
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Data type: string
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Access type: Read-only
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Qualifiers: MaxLen (256)
The name of the class or subclass used in the creation of an instance. When used with other key properties of the class, this property allows all instances of the class and its subclasses to be uniquely identified. This property is inherited from CIM_LogicalDevice.
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Description
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Data type: string
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Access type: Read-only
A description of the object. This property is inherited from CIM_ManagedElement.
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DetailedStatus
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Data type: uint16
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Access type: Read-only
Compliments the PrimaryStatus property with additional status detail. A Null value indicates that this property is not implemented. This property is inherited from CIM_ManagedSystemElement.
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Not Available (0)
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No Additional Information (1)
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Stressed (2)
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Predictive Failure (3)
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Non-Recoverable Error (4)
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Supporting Entity in Error (5)
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DMTF Reserved (..)
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Vendor Reserved (0x8000.. )
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DeviceID
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Data type: string
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Access type: Read-only
An address or other identifying information to uniquely name the logical device. This property is inherited from CIM_LogicalDevice, and it is always set to "Microsoft:GUID".
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ElementName
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Data type: string
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Access type: Read-only
A display name for the object. This property allows each instance to define a display name in addition to its key properties, identity data, and description information. The Name property of the CIM_ManagedSystemElement class is also defined as a display name. But, it is often subclassed to be a Key. It is not reasonable that the same property can convey both identity and a display name, without inconsistencies. Where Name exists and is not a Key (such as for instances of CIM_LogicalDevice), the same information can be present in both the Name and ElementName properties. This property is inherited from CIM_ManagedElement.
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EnabledDefault
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Data type: uint16
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Access type: Read-only
An administrator's default or startup configuration for the enabled state of an element. This property is inherited from CIM_EnabledLogicalElement.
Value Meaning - 2
Enabled -
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EnabledState
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Data type: uint16
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Access type: Read-only
Indicates the enabled and disabled states of an element. It can also indicate the transitions between these requested states. For example, shutting down (value=4) and starting (value=10) are transient states between enabled and disabled.
Value Meaning - Unknown
- 0
Unknown - Other
- 1
Other - Enabled
- 2
The element is or could be executing commands, will process any queued commands, and queues new requests. - Disabled
- 3
The element will not execute commands and will drop any new requests. - Shutting Down
- 4
The element is in the process of going to a Disabled state. - Not Applicable
- 5
The element does not support being enabled or disabled. - Enabled but Offline
- 6
The element might be completing commands and will drop any new requests. - In Test
- 7
The element is in a test state. - Deferred
- 8
The element might be completing commands, but it will queue any new requests. - Quiesce
- 9
The element is enabled but in a restricted mode. The behavior of the element is similar to the Enabled state (2), but it processes only a restricted set of commands. All other requests are queued. - Starting
- 10
The element is in the process of going to an Enabled state (2). New requests are queued. - DMTF Reserved
- 11 32767
This value is reserved. - Vendor Reserved
- 32768 65535
This value is reserved. -
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ErrorCleared
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Data type: boolean
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Access type: Read-only
Indicates whether the error reported in LastErrorCode is now cleared. This property is inherited from CIM_LogicalDevice, but it is not used.
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ErrorDescription
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Data type: string
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Access type: Read-only
A string that provides more information about the error recorded in LastErrorCode and information about any corrective actions that can be taken. This property is inherited from CIM_LogicalDevice, but it is not used.
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HealthState
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Data type: uint16
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Access type: Read-only
The current health of the element. This property is inherited from CIM_ManagedSystemElement, and it is always set to 5 (OK).
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IdentifyingDescriptions
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Data type: string array
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Access type: Read-only
An array of free-form strings that provide explanations and details behind the entries in the OtherIdentifyingInfo array. This property is inherited from CIM_LogicalDevice.
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InstallDate
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Data type: datetime
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Access type: Read-only
The date and time when the virtual machine was created. This property is inherited from CIM_ManagedSystemElement.
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InstanceID
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Data type: string
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Access type: Read-only
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Qualifiers: Key
Uniquely identifies an instance of this class. This property is inherited from CIM_ManagedElement.
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IsLocked
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Data type: boolean
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Access type: Read-only
Indicates whether the device is locked, preventing user input or output. This property is inherited from CIM_UserDevice.
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LastErrorCode
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Data type: uint32
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Access type: Read-only
The last error code reported by the logical device. This property is inherited from CIM_LogicalDevice, but it is not used.
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Layout
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Data type: string
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Access type: Read-only
A string indicating the format and layout of the keyboard.
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MaxQuiesceTime
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Data type: uint64
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Access type: Read-only
This property has been deprecated. This property is inherited from CIM_LogicalDevice, but it is not used.
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Name
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Data type: string
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Access type: Read-only
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Qualifiers: MaxLen (1024)
The label by which the object is known. When subclassed, this property can be overridden to be a key property. This property is inherited from CIM_ManagedSystemElement.
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NumberOfFunctionKeys
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Data type: uint16
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Access type: Read-only
The number of function keys on the keyboard.
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OperatingStatus
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Data type: uint16
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Access type: Read-only
Provides current status information for the operational condition of the element and can be used for providing more detail with respect to the value of the EnabledState property. A Null value indicates that this property is not implemented. This property is inherited from CIM_ManagedSystemElement.
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Unknown (0)
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Not Available (1)
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Servicing (2)
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Starting (3)
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Stopping (4)
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Stopped (5)
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Aborted (6)
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Dormant (7)
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Completed (8)
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Migrating (9)
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Emigrating (10)
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Immigrating (11)
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Snapshotting (12)
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Shutting Down (13)
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In Test (14)
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Transitioning (15)
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In Service (16)
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DMTF Reserved (..)
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Vendor Reserved (0x8000.. )
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OperationalStatus
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Data type: uint16 array
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Access type: Read-only
The current status of the element. This property is inherited from CIM_ManagedSystemElement, and it is always set to 2 (OK).
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OtherEnabledState
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Data type: string
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Access type: Read-only
A string that describes the enabled or disabled state of the element when the EnabledState property is set to 1 (Other). This property must be set to Null when EnabledState is any value other than 1. This property is inherited from CIM_EnabledLogicalElement.
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OtherIdentifyingInfo
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Data type: string array
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Access type: Read-only
Any additional data, beyond device ID information, that could be used to identify a logical device. This property is inherited from CIM_LogicalDevice and it is always set to Null.
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Password
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Data type: uint16
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Access type: Read-only
Indicates whether a hardware-level password is enabled at the keyboard, preventing local input.
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5
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Not implemented.
PowerManagementCapabilities
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Data type: uint16 array
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Access type: Read-only
The power management capabilities of the device. This property is inherited from CIM_LogicalDevice, but it is not used.
PowerManagementSupported
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Data type: boolean
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Access type: Read-only
Indicates whether the device can be power managed. This property is inherited from CIM_LogicalDevice, but it is not used.
PowerOnHours
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Data type: uint64
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Access type: Read-only
The number of consecutive hours that this device has been powered on since its last power cycle. This property is inherited from CIM_LogicalDevice, but it is not used.
PrimaryStatus
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Data type: uint16
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Access type: Read-only
Provides high level status information. This property should be used in conjunction with the DetailedStatus property to provide high level and detailed health status of the element and its subcomponents. A Null value indicates that this property is not implemented. This property is inherited from CIM_ManagedSystemElement.
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Unknown (0)
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OK (1)
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Degraded (2)
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Error (3)
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DMTF Reserved (..)
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Vendor Reserved (0x8000.. )
RequestedState
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Data type: uint16
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Access type: Read-only
The last requested state for the element.
Value | Meaning |
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Not applicable. |
Status
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Data type: string
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Access type: Read-only
This property is inherited from CIM_ManagedSystemElement, but it is not used.
StatusDescriptions
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Data type: string array
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Access type: Read-only
Strings that describe the various OperationalStatus array values. This property is inherited from CIM_ManagedSystemElement, and it is always set to "OK".
StatusInfo
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Data type: uint16
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Access type: Read-only
The current state of the logical device. This property is inherited from CIM_LogicalDevice, but it is not used.
SystemCreationClassName
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Data type: string
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Access type: Read-only
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Qualifiers: MaxLen (256)
The scoping system's creation class name. This property is inherited from CIM_LogicalDevice, and it is set to "Msvm_ComputerSystem".
SystemName
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Data type: string
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Access type: Read-only
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Qualifiers: MaxLen (256)
The scoping system's name. This value corresponds to the value of the Name property of the Msvm_ComputerSystem class for the scoping virtual machine. This property is inherited from CIM_LogicalDevice.
TimeOfLastStateChange
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Data type: datetime
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Access type: Read-only
The date and time when the enabled state of the element last changed. If the state of the element has not changed and this property is populated, then it must be set to a 0 interval value. If a state change was requested, but rejected or not yet processed, the property must not be updated. This property is inherited from CIM_EnabledLogicalElement, and it is always set to Null.
TotalPowerOnHours
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Data type: uint64
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Access type: Read-only
The total number of hours that this device has been powered. This property is inherited from CIM_LogicalDevice, but it is not used.
TransitioningToState
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Data type: uint16
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Access type: Read-only
Indicates the target state to which the instance is transitioning. This property is inherited from CIM_EnabledLogicalElement, and it is always set to Null.
UnicodeSupported
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Data type: boolean
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Access type: Read-only
Indicates if the virtual keyboard supports Unicode characters. This can be one of the following values.
Value | Meaning |
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The virtual keyboard supports Unicode characters. |
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The virtual keyboard does not support Unicode characters. |
Access to the Msvm_Keyboard class might be restricted by UAC Filtering. For more information, see User Account Control and WMI.
Requirement | Value |
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Minimum supported client |
Windows 8 [desktop apps only] |
Minimum supported server |
Windows Server 2012 [desktop apps only] |
Namespace |
Root\Virtualization\V2 |
MOF |
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DLL |
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