Checking flip cover and camera positions using Symbian C++

Comments

Hi!

Does this tutorial work on Symbian 2nd edition phones only?

I tried - TInt dState; HAL::Get(HALData::EDisplayState, dState);

but dState is always 1!

Any idea what is causing the problem?

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Article Metadata

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Tested with

Devices(s): Nokia N90

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Compatibility

Platform(s): S60 2nd Edition, FP3

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Article

Created: User:Technical writer 2 (25 Aug 2005)

Last edited: hamishwillee (14 Jun 2012)

Overview

The code snippet shows how to check the flip cover and camera position in S60 2nd Edition, FP3.

Description

It is possible to detect flip cover opening/closing events in CEikAppUi::HandleKeyEventL(). The corresponding events (TEventCode) are EEventScreenDeviceChanged, EEventCaseOpened, and EEventCaseClosed. When the camera is rotated, there will be key events of type EEventKeyUp and EEventKeyDown with TKeyEvent::iScanCode values ranging from 234 to 238 depending on its orientation.

Example code for checking the current orientation of camera:

#include <ECam.h> // link against ecam.lib
CCamera* cam = CCamera::NewL(*this, 0);
TCameraInfo info;
cam->CameraInfo(info);
TCameraOrientation orientation = info.iOrientation;

Possible values for the orientation (TCameraOrientation):

• EOrientationOutwards: Outward pointing camera (pictures)
• EOrientationInwards: Inward pointing camera (conferencing)
• EOrientationMobile: Orientation can be changed by the user
• EOrientationUnknown: Orientation is not known

Checking the current position of flip cover:

#include <hal.h> // link against hal.lib
TInt dState;  HAL::Get(HALData::EDisplayState, dState);