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ID	CS000905	Creation date	April 17, 2008
Platform	S60 3rd Edition, MR	Tested on devices	Nokia N95 8GB
Category	Symbian C++	Subcategory	Imaging, Files/Data

Keywords (APIs, classes, methods, functions): CCamera, MCameraObserver, CCamera::CaptureImage(), MCameraObserver::ImageReady(), RFile::Replace(), RFile::Write()

Overview

This snippet demonstrates how to save an image which was captured using the Camera API (ecam.lib). The code is greatly simplified for the part of error handling and the actual image capturing. For more information on capturing an image, see the related code snippet CS000904 - Capturing an image.

This snippet can be self-signed.

MMP file

This snippet requires the following libraries:

LIBRARY  efsrv.lib 
LIBRARY  eikcore.lib

In practice, however, also the following capabilities and libraries are required (to capture an image):

CAPABILITY  UserEnvironment

LIBRARY  ecam.lib

Source file

#include <EIKENV.H>  // CEikonEnv

/**
 * Symbian Onboard Camera API observer. Gets called after
 * CCamera::CaptureImage() is called.
 * @param aBitmap a pointer to a bitmap image if this was the format specified
 * @param aData a pointer to JPEG image data if this was the format specified
 * @param aError KErrNone on success or an error code on failure
 */
void CCameraEngine::ImageReady(CFbsBitmap* aBitmap, HBufC8* aData, TInt aError)
    {
    // TODO: Error handling
 
    // It is assumed here that before capturing the image format was set
    // to CCamera::EFormatExif, and that the device supports this format.
    // This means that the (EXIF JPEG) image data is contained in aData
    // argument.
 
    // Connect to the file server session and reserve a file for the image
    RFs& fsSession = CEikonEnv::Static()->FsSession();
    _LIT(KFilename, "C:\\Data\\Images\\image.jpg");
    RFile file;
    TInt frErr = file.Replace(fsSession, KFilename, EFileWrite);
    // TODO: Error handling
 
    // Write the image data to the file.
    TInt fwErr = file.Write(*aData);
    // TODO: Error handling
    }

Postconditions

The captured image is saved as C:\Data\Images\image.jpg.

See also

• CS000904 - Capturing an image
• S60 Platform: Camera Example with AutoFocus Support