在设备驱动程序在修改系统的电源状态吗？结贴后再拿100分来发。

[AMinfo]

如题：WDM驱动程序中，能修改系统的电源状态吗？如果修改？

[xstring]

ZwSetSystemPowerState
ZwSetSystemPowerState sets the power state of the system.

NTSYSAPI
NTSTATUS
NTAPI
ZwSetSystemPowerState(
IN POWER_ACTION SystemAction,
IN SYSTEM_POWER_STATE MinSystemState,
IN ULONG Flags
);
Parameters
SystemAction
Specifies the power action to perform.The permitted values are drawn from the enumeration POWER_ACTION:

typedef enum _POWER_ACTION {
PowerActionNone,
PowerActionReserved,
PowerActionSleep,
PowerActionHibernate,
PowerActionShutdown,
PowerActionShutdownReset,
PowerActionShutdownOff
} POWER_ACTION, *PPOWER_ACTION;

MinSystemState
Specifies the minimum power state to enter as a result of performing the action. The permitted values are drawn from the enumeration SYSTEM_POWER_STATE:

typedef enum _SYSTEM_POWER_STATE {
PowerSystemUnspecified = 0,
PowerSystemWorking,
PowerSystemSleeping1,
PowerSystemSleeping2,
PowerSystemSleeping3,
PowerSystemHibernate,
PowerSystemShutdown
} SYSTEM_POWER_STATE, *PSYSTEM_POWER_STATE;

Flags
Qualifies the SystemAction. Defined values include:

POWER_ACTION_QUERY_ALLOWED
POWER_ACTION_UI_ALLOWED
POWER_ACTION_OVERRIDE_APPS
POWER_ACTION_LOCK_CONSOLE
POWER_ACTION_DISABLE_WAKES
POWER_ACTION_CRITICAL

Return Value
Returns STATUS_SUCCESS or an error status, such as STATUS_PRIVILEGE_NOT_HELD, STATUS_ALREADY_COMMITTED, or STATUS_CANCELLED.

[AMinfo]

xstring(麻雀)，这贴先结，分先加，我们在另外一贴中讨论吧。谢谢您！