Power Management (Windows CE 5.0)

Windows CE 5.0
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The Power Manager manages device power and improves overall operating system (OS) power efficiency, provides power management for each device, and coexists with applications and drivers that do not support the Power Manager.

You can use power management to reduce the power consumption of a target device and to maintain and preserve the file system in RAM during the reset, on, idle, and suspend power states.

The Power Manager also provides you with the following capabilities:

  • A framework in which devices can intelligently manage their own power.
  • A mechanism for decoupling the power state of a device from the suspend or resume state of the system.
  • A module that has a global view of the system environment, power status and device power states. You can customize the Power Manager to make system-wide decisions about power that are suitable for your device.
  • Control over the code surrounding the call to PowerOffSystem when the system suspends and resumes.

In This Section

Power Management Architecture
Provides information on the power management architecture for Windows CE-based devices.
Power States
Provides information on the various power states used by the Power Manager.
Power Manager Interfaces
Provides information on the device driver, application, and notification interfaces that the Power Manager uses to communicate.
Device Power Management Guidelines
Provides guidelines and information on managing device power, including device power self-management, adding power management to a device driver, class-qualified device names, and suspend and resume handling.
Activity Timers
Provides information on activity timers, including events, resets, and general behavior.
Suspend Time-out Support
Provides information on suspend time-outs, including, GWES, Power Manager, and application suspend time-outs.
Power Management Reference
Provides reference information about the power management APIs.

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