保存捕获的图片

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文章信息

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兼容于

平台: S60 3rd Edition, MR

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文章

翻译:

翻译自: CS000905 - Saving a captured image

最后由 hamishwillee 在 06 Mar 2012 编辑

• 详细描述

这里演示了如何保存用Camera API(ecam.lib)捕捉的图片。下列代码很大程度简化了对错误和实际图片捕捉的处理。更多关于捕捉图片的内容，请参考CS000904 - Capturing an image

这段代码可以自签名使用。

MMP

代码需要下列库

LIBRARY  efsrv.lib 
LIBRARY  eikcore.lib

特别注意，如果要捕捉图片需要下列能力和链接库

CAPABILITY  UserEnvironment
LIBRARY  ecam.lib

源文件

#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
    }

运行条件

捕捉的图片被存放在C:\Data\Images\image.jpg