Enclosing interface:

PowrProf
```
public static interface PowrProf.POWER_INFORMATION_LEVEL
```
Enum which indicates the power information level requested from PowrProf.CallNtPowerInformation(int, com.sun.jna.Pointer, int, com.sun.jna.Pointer, int). This value indicates the specific power information to be set or retrieved.

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`LastSleepTime`	The `lpInBuffer` parameter must be `NULL`; otherwise, the function returns `WinError.ERROR_INVALID_PARAMETER`.
`static int`	`LastWakeTime`	The `lpInBuffer` parameter must be `NULL`; otherwise, the function returns `WinError.ERROR_INVALID_PARAMETER`.
`static int`	`ProcessorInformation`	The `lpInBuffer` parameter must be `NULL`; otherwise, the function returns `WinError.ERROR_INVALID_PARAMETER`.
`static int`	`SystemBatteryState`	The `lpInBuffer` parameter must be `NULL`; otherwise, the function returns `WinError.ERROR_INVALID_PARAMETER`.
`static int`	`SystemExecutionState`	The `lpInBuffer` parameter must be `NULL` otherwise, the function returns `WinError.ERROR_INVALID_PARAMETER`.
`static int`	`SystemPowerCapabilities`	The `lpInBuffer` parameter must be `NULL`; otherwise, the function returns `WinError.ERROR_INVALID_PARAMETER`.
`static int`	`SystemPowerInformation`	The `lpInBuffer` parameter must be `NULL`; otherwise, the function returns `WinError.ERROR_INVALID_PARAMETER`.
`static int`	`SystemPowerPolicyAc`	If `lpInBuffer` is not `NULL`, the function applies the `WinNT.SYSTEM_POWER_POLICY` values passed in `lpInBuffer` to the current system power policy used while the system is running on AC (utility) power.
`static int`	`SystemPowerPolicyCurrent`	The `lpInBuffer` parameter must be `NULL`; otherwise, the function returns `WinError.ERROR_INVALID_PARAMETER`.
`static int`	`SystemPowerPolicyDc`	If `lpInBuffer` is not `NULL`, the function applies the `WinNT.SYSTEM_POWER_POLICY` values passed in `lpInBuffer` to the current system power policy used while the system is running on battery power.
`static int`	`SystemReserveHiberFile`	If `lpInBuffer` is not `NULL` and the current user has sufficient privileges, the function commits or decommits the storage required to hold the hibernation image on the boot volume.

- Field Detail
  - LastSleepTime
```
static final int LastSleepTime
```
    The lpInBuffer parameter must be NULL; otherwise, the function returns WinError.ERROR_INVALID_PARAMETER.
    The lpOutputBuffer buffer receives a WinDef.ULONGLONG that specifies the interrupt-time count, in 100-nanosecond units, at the last system sleep time.
    
    See Also:
    
    Constant Field Values
  - LastWakeTime
```
static final int LastWakeTime
```
    The lpInBuffer parameter must be NULL; otherwise, the function returns WinError.ERROR_INVALID_PARAMETER.
    The lpOutputBuffer buffer receives a WinDef.ULONGLONG that specifies the interrupt-time count, in 100-nanosecond units, at the last system wake time.
    
    See Also:
    
    Constant Field Values
  - ProcessorInformation
```
static final int ProcessorInformation
```
    The lpInBuffer parameter must be NULL; otherwise, the function returns WinError.ERROR_INVALID_PARAMETER.
    The lpOutputBuffer buffer receives one WinNT.PROCESSOR_POWER_INFORMATION structure for each processor that is installed on the system. Use the Kernel32.GetSystemInfo(com.sun.jna.platform.win32.WinBase.SYSTEM_INFO) function to retrieve the number of processors, which will be the number of logical processors on the current Processor Group.
    
    See Also:
    
    Constant Field Values
  - SystemBatteryState
```
static final int SystemBatteryState
```
    The lpInBuffer parameter must be NULL; otherwise, the function returns WinError.ERROR_INVALID_PARAMETER.
    The lpOutputBuffer buffer receives a WinNT.SYSTEM_BATTERY_STATE structure containing information about the current system battery.
    
    See Also:
    
    Constant Field Values
  - SystemExecutionState
```
static final int SystemExecutionState
```
    The lpInBuffer parameter must be NULL otherwise, the function returns WinError.ERROR_INVALID_PARAMETER.
    The lpOutputBuffer buffer receives a WinDef.ULONG value containing the system execution state buffer. This value may contain any combination of the following values: WinBase.ES_SYSTEM_REQUIRED, WinBase.ES_DISPLAY_REQUIRED, or WinBase.ES_USER_PRESENT. For more information, see the Kernel32.SetThreadExecutionState(int) function.
    
    See Also:
    
    Constant Field Values
  - SystemPowerCapabilities
```
static final int SystemPowerCapabilities
```
    The lpInBuffer parameter must be NULL; otherwise, the function returns WinError.ERROR_INVALID_PARAMETER.
    The lpOutputBuffer buffer receives a WinNT.SYSTEM_POWER_CAPABILITIES structure containing the current system power capabilities.
    This information represents the currently supported power capabilities. It may change as drivers are installed in the system. For example, installation of legacy device drivers that do not support power management disables all system sleep states.
    
    See Also:
    
    Constant Field Values
  - SystemPowerInformation
```
static final int SystemPowerInformation
```
    The lpInBuffer parameter must be NULL; otherwise, the function returns WinError.ERROR_INVALID_PARAMETER.
    The lpOutputBuffer buffer receives a WinNT.SYSTEM_POWER_INFORMATION structure.
    Applications can use this level to retrieve information about the idleness of the system.
    
    See Also:
    
    Constant Field Values
  - SystemPowerPolicyAc
```
static final int SystemPowerPolicyAc
```
    If lpInBuffer is not NULL, the function applies the WinNT.SYSTEM_POWER_POLICY values passed in lpInBuffer to the current system power policy used while the system is running on AC (utility) power.
    The lpOutputBuffer buffer receives a WinNT.SYSTEM_POWER_POLICY structure containing the current system power policy used while the system is running on AC (utility) power.
    
    See Also:
    
    Constant Field Values
  - SystemPowerPolicyCurrent
```
static final int SystemPowerPolicyCurrent
```
    The lpInBuffer parameter must be NULL; otherwise, the function returns WinError.ERROR_INVALID_PARAMETER.
    The lpOutputBuffer buffer receives a WinNT.SYSTEM_POWER_POLICY structure containing the current system power policy used while the system is running on AC (utility) power.
    
    See Also:
    
    Constant Field Values
  - SystemPowerPolicyDc
```
static final int SystemPowerPolicyDc
```
    If lpInBuffer is not NULL, the function applies the WinNT.SYSTEM_POWER_POLICY values passed in lpInBuffer to the current system power policy used while the system is running on battery power.
    The lpOutputBuffer buffer receives a WinNT.SYSTEM_POWER_POLICY structure containing the current system power policy used while the system is running on battery power.
    
    See Also:
    
    Constant Field Values
  - SystemReserveHiberFile
```
static final int SystemReserveHiberFile
```
    If lpInBuffer is not NULL and the current user has sufficient privileges, the function commits or decommits the storage required to hold the hibernation image on the boot volume.
    The lpInBuffer parameter must point to a BOOLEAN value indicating the desired request. If the value is TRUE, the hibernation file is reserved; if the value is FALSE, the hibernation file is removed.
    
    See Also:
    
    Constant Field Values

Interface PowrProf.POWER_INFORMATION_LEVEL

Field Summary

Field Detail

LastSleepTime

LastWakeTime

ProcessorInformation

SystemBatteryState

SystemExecutionState

SystemPowerCapabilities

SystemPowerInformation

SystemPowerPolicyAc

SystemPowerPolicyCurrent

SystemPowerPolicyDc

SystemReserveHiberFile