72     /**

    73      * Gets display size and virtual rotation.

    74      * @param aSize this will contain size.

    75      * @param aRotation this will contain rotation.

    76      * @return error code, KErrNone upon success.

    77      * @internal

    78      */

    79     TInt GetSizeAndRotation(TSize& aSize, TInt& aRotation);

    80     

    81     /**

    82      * Reads pixels from surface to bitmap.

    83      * @param aBitmapHandle bitmap handle.

    84      * @return error code, KErrNone upon success.

    85      * @internal

    86      */

    87     TInt ReadPixels(TInt aBitmapHandle);

    88     

    89     /**

    90      * NGA Substitute for Avkon screen blanker.

    91      * Only AknCapserver can use this method (protected using SID)

    92      * Does not reference count, i.e. all calls are absolute 

    93      * @return error code.

    94      */

    95     IMPORT_C TInt BlankScreen( TBool aEnabled );