Archived:Saving an image captured using the Symbian Camera API
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Article Metadata
Tested with
Devices(s): Nokia N95 8GB
Compatibility
Platform(s): S60 3rd Edition, MR
Platform Security
Signing Required: Self-Signed
Capabilities: UserEnvironment
Article
Keywords: CCamera, MCameraObserver, CCamera::CaptureImage(), MCameraObserver::ImageReady(), RFile::Replace(), RFile::Write()
Created: tapiolaitinen
(08 Apr 2008)
Last edited: lpvalente
(11 Aug 2012)
Contents |
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 Archived:Capturing an image using the Symbian Camera API.
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.
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