TB10.1 Example Applications: examples/SysLibs/ResourceFiles/SigCheck/SigCheck.cpp Source File

00001 // Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies).
+00002 // All rights reserved.
+00003 // This component and the accompanying materials are made available
+00004 // under the terms of "Eclipse Public License v1.0"
+00005 // which accompanies this distribution, and is available
+00006 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
+00007 //
+00008 // Initial Contributors:
+00009 // Nokia Corporation - initial contribution.
+00010 //
+00011 // Contributors:
+00012 //
+00013 // Description:
+00014 // This example, shows how the signature of a resource file is
+00015 // checked before it is used.
+00016 //
+00017 
+00018 
+00019 #include "CommonToResourceFilesEx.h"
+00020 #include <sigcheck.rsg> // resources
+00021 
+00022 
+00023 // Do the example
+00024 LOCAL_C void doExampleL()
+00025     {
+00026         _LIT(KFormat,"%S\n");
+00027 
+00028                 // Pointer to a resource file
+00029         RResourceFile resourceFile; 
+00030                 // open resource file on the emulator(__WINS__  is defined for the Windows emulator)
+00031                 //(leave if error)
+00032         #if defined(__WINS__)
+00033         _LIT(KZSystemDataSigRsc,"Z:\\Resource\\apps\\SigCheck.rsc");
+00034         resourceFile.OpenL(fsSession, KZSystemDataSigRsc);
+00035         #endif
+00036 
+00037                 // open a resource file on the target phone
+00038                 // ( __EPOC32__ is defined for all target hardware platforms regardless of processor type/hardware architecture)
+00039         #if defined(__EPOC32__)
+00040         _LIT(KCSystemDataSigRsc,"Z:\\Resource\\apps\\SigCheck.rsc");
+00041         resourceFile.OpenL(fsSession, KCSystemDataSigRsc);
+00042         #endif
+00043                 // check resource file signature
+00044         TInt version=23; // version 023
+00045         resourceFile.ConfirmSignatureL(version);
+00046 
+00047                 // confirm, and leave if error
+00048                 // read resource from file
+00049         HBufC8* dataBuffer=resourceFile.AllocReadLC(R_BASE_HELLO);
+00050         TResourceReader reader;
+00051         reader.SetBuffer(dataBuffer);
+00052         TPtrC textdata = reader.ReadTPtrC();
+00053                 // write string to test console
+00054         console->Printf(KFormat, &textdata);
+00055                 // clean up data buffer
+00056         CleanupStack::PopAndDestroy(); // finished with dataBuffer
+00057                 // close resource file
+00058         resourceFile.Close(); // finished with resourceFile
+00059         }
+00060 
+