IAdapterPowerManagement2::PowerChangeState2 method (portcls.h)
Portcls calls the IAdapterPowerManagement2::PowerChangeState2 method to request a change to the new power state. This request is passed on to the adapter driver.
Syntax
void PowerChangeState2(
[in] DEVICE_POWER_STATE NewDeviceState,
[in] SYSTEM_POWER_STATE NewSystemState
);
Parameters
[in] NewDeviceState
Specifies the new power state that Portcls has requested for the device. This parameter is an enumeration of type DEVICE_POWER_STATE.
[in] NewSystemState
Specifies the new power state that Portcls has requested for the system. This parameter is an enumeration of type SYSTEM_POWER_STATE.
Return value
None
Remarks
A power state indicates the level of power consumption of a device or system. As a result, the level of computing activity is directly affected by the power state of a device or system.
For more information about system power states, see Handling System Power State Requests. For more information about device power states, see Managing Power for Individual Devices.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available in Windows 7 and later versions of Windows. |
| Target Platform | Universal |
| Header | portcls.h (include Portcls.h) |
See also
Handling System Power State Requests