Motorola SYMBOL MINISCAN MSXX04 Guía de usuario descargar pdf (Pagina 35)

Chapter 3: Batteries and Power Management

Accelerometer and Gyroscope

Psion Mobile Devices Developers Guide

The first time you enable a wakeup source programmatically, it may not bring the device into the fully on

state. The device is in standby mode. For a code sample showing how to deal with this see:

community.psion.com/downloads/developer_sdkhdk/m/sample__demo_code/34578.aspx.

Usually, after Windows is restarted, an enabled wakeup source brings the device out of suspend mode into

fully on. For details see Section 4.3 Programmatic Initiation of Resets on page 34.

3.6.3 Accelerometer and Gyroscope

The accelerometer and the gyroscope do not wake a computer from suspend mode.

3.6.4 Wake up that Stops in Standby Mode

For some wakeup sources—such as WWAN radio events—the wakeup event raises the device from suspend

mode into standby mode, and not to fully on. In this case the application must monitor the transition from

suspend mode to reset mode. It can then programmatically bring the device from standby mode to fully on.

3.6.5 Setting a Time Until Wakeup

To suspend a computer for a selected length of time, use the Microsoft APIs.

3.7 Getting Started with the Suspend/resume Cycle

For articles on Ingenuity Working that will guide you in getting started with the suspend/resume cycle see:

community.psion.com/tags/wakeup/noteDG.

3.8 Code Samples for the Suspend/resume Cycle

For postings on Ingenuity Working that contain code samples that use the suspend/resume cycle see:

community.psion.com/tags/wakeup/codeDG.

3.9 Suspend API Elements

You cannot programmatically put a Psion computer into standby mode.

C++: Suspend on all computers is controlled using the PsionTeklogix::PowerManagement namespace. For

suspending the computer and setting the time until wake-up use Microsoft Power Management APIs; for

details see

http://msdn.microsoft.com/en-us/library/ms895437(v=MSDN.10).aspx.

Java: Suspend on all computers is controlled using the com.teklogix.power package.

.NET: Suspend on all computers is controlled using the PsionTeklogix.Power namespace. Power can also

be controlled by the Windows Power Management Functions; for details see

http://msdn.microsoft.com/en-us/library/ms895437(v=MSDN.10).aspx.

Selection of wakeup sources

C++: Wakeup sources on all computers is controlled using the

PsionTeklogix::PowerManagement namespace.

Java: Wakeup sources on all computers is controlled using the com.teklogix.power package.

.NET: Wakeup sources on all computers is controlled using the PsionTeklogix.Power namespace.

3.10 Power Management

3.10.1 Events

C++

C++ applications must use the Microsoft RequestPowerNotifications and

GetSystemPowerStatusEx2 APIs.

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Motorola SYMBOL MINISCAN MSXX04 Guía de usuario Pagina 35