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Showing content from http://java-native-access.github.io/jna/5.17.0/javadoc/com/sun/jna/platform/win32/PowrProf.html below:

PowrProf (JNA API)

Alle Superschnittstellen:

Library

Functions used with power management.

• Verschachtelte Klassen - Übersicht

  Verschachtelte Klassen

• Feldübersicht

  Felder

• Methodenübersicht

  int

  Sets or retrieves power information.

• Felddetails
  • INSTANCE
• Methodendetails
  • CallNtPowerInformation int CallNtPowerInformation(int informationLevel, Pointer lpInputBuffer, int nInputBufferSize, Pointer lpOutputBuffer, int nOutputBufferSize)

    Changes made to the current system power policy using CallNtPowerInformation(int, com.sun.jna.Pointer, int, com.sun.jna.Pointer, int) are immediate, but they are not persistent; that is, the changes are not stored as part of a power scheme. Any changes to system power policy made with CallNtPowerInformation(int, com.sun.jna.Pointer, int, com.sun.jna.Pointer, int) may be overwritten by changes to a policy scheme made by the user in the Power Options control panel program, or by subsequent calls to WritePwrScheme, SetActivePwrScheme, or other power scheme functions.

    Parameter:

    informationLevel - The information level requested. This value indicates the specific power information to be set or retrieved. This parameter must be one of the following PowrProf.POWER_INFORMATION_LEVEL enumeration type values: PowrProf.POWER_INFORMATION_LEVEL.LastSleepTime, PowrProf.POWER_INFORMATION_LEVEL.LastWakeTime, PowrProf.POWER_INFORMATION_LEVEL.ProcessorInformation, PowrProf.POWER_INFORMATION_LEVEL.SystemBatteryState, PowrProf.POWER_INFORMATION_LEVEL.SystemExecutionState, PowrProf.POWER_INFORMATION_LEVEL.SystemPowerCapabilities, PowrProf.POWER_INFORMATION_LEVEL.SystemPowerInformation, PowrProf.POWER_INFORMATION_LEVEL.SystemPowerPolicyAc, PowrProf.POWER_INFORMATION_LEVEL.SystemPowerPolicyCurrent, PowrProf.POWER_INFORMATION_LEVEL.SystemPowerPolicyDc, or PowrProf.POWER_INFORMATION_LEVEL.SystemReserveHiberFile.

    lpInputBuffer - A pointer to an optional input buffer. The data type of this buffer depends on the information level requested in the informationLevel parameter.

    nInputBufferSize - The size of the input buffer, in bytes.

    lpOutputBuffer - A pointer to an optional output buffer. The data type of this buffer depends on the information level requested in the informationLevel parameter. If the buffer is too small to contain the information, the function returns NTStatus.STATUS_BUFFER_TOO_SMALL.

    nOutputBufferSize - The size of the output buffer, in bytes. Depending on the information level requested, this may be a variably sized buffer.

    Gibt zurück:

    If the function succeeds, the return value is NTStatus.STATUS_SUCCESS. If the function fails, the return value can be one the following status codes: NTStatus.STATUS_BUFFER_TOO_SMALL if the output buffer is of insufficient size to contain the data to be returned. NTStatus.STATUS_ACCESS_DENIED if the caller had insufficient access rights to perform the requested action.

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