TB10.1 Example Applications: examples/Basics/ExtensionPattern/src_extensionclient/ExtensionClient.cpp Source File

00001 // Copyright (c) 1997-2009 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 // Implements a simple console application to use functionality from both OriginalDll
-00015 // and the ExtensionDll
-00016 // Should work without rebuild for both versions of OriginalDll & ExtensionDll
-00017 //
-00018 
-00019 #include <e32base.h>
-00020 #include <e32cons.h>
-00021 #include <NumberStore.h>
-00022 
-00023 _LIT(KHello,"Hello World!\r\n"); 
-00024 _LIT(KTxtEPOC32EX,"EPOC32EX");
-00025 _LIT(KTxtExampleCode,"Symbian platform Example Code");
-00026 _LIT(KFormatFailed,"failed: leave code=%d");
-00027 _LIT(KTxtOK,"ok");
-00028 _LIT(KTxtPressAnyKey," [press any key]");
-00029 
-00030 LOCAL_D CConsoleBase* console;
-00031 LOCAL_C void callExampleL(); 
-00032 LOCAL_C void doExampleL(); 
-00033 
-00034 GLDEF_C TInt E32Main()
-00035     {
-00036         __UHEAP_MARK;
-00037         CTrapCleanup* cleanup=CTrapCleanup::New(); 
-00038         TRAPD(error,callExampleL()); 
-00039         __ASSERT_ALWAYS(!error,User::Panic(KTxtEPOC32EX,error));
-00040         delete cleanup; 
-00041         __UHEAP_MARKEND;
-00042         return 0; 
-00043     }
-00044 
-00045 LOCAL_C void callExampleL()
-00046     {
-00047         console=Console::NewL(KTxtExampleCode,TSize(KConsFullScreen,KConsFullScreen));
-00048         CleanupStack::PushL(console);
-00049         TRAPD(error,doExampleL()); 
-00050         if (error)
-00051                 console->Printf(KFormatFailed, error);
-00052         else
-00053                 console->Printf(KTxtOK);
-00054         console->Printf(KTxtPressAnyKey);
-00055         console->Getch(); 
-00056         CleanupStack::PopAndDestroy();
-00057     }
-00058     
-00059 LOCAL_C void doExampleL()
-00060     {
-00061         console->Printf(KHello);
-00062         TInt num1=3;
-00063         TInt num2=7;
-00064 
-00065         //Create & initialise the number store using original functionality
-00066         CNumberStore* numberstore=new (ELeave) CNumberStore();
-00067         numberstore->SetNumber1(num1);
-00068         numberstore->SetNumber2(num2);
-00069         console->Printf(_L("Created CNumberStore with values %d & %d\n"),num1,num2);
-00070         num1=numberstore->Number1();
-00071         num2=numberstore->Number2();
-00072         console->Printf(_L("CNumberStore has values %d & %d\n"),num1,num2);
-00073 
-00074         TInt total=-1;
-00075         TInt product=-1;
-00076         
-00077         //Use extension functionality
-00078 
-00079         //The following line will work as expected, using the implementation in the extension dll
-00080         total=numberstore->AddNumbers();
-00081 
-00082         //The following line will fail to compile, as it attempts to call a private function
-00083         //product=numberstore->DoMultiplyNumbers();
-00084 
-00085         //The following line will work as expected, using the implementation in the extension dll
-00086         product=numberstore->MultiplyNumbers();
-00087 
-00088         console->Printf(_L("CNumberStore extension gives total %d\n"),total);
-00089         console->Printf(_L("CNumberStore extension gives product with magic multiplyer %d\n"),product);
-00090 
-00091 
-00092         delete numberstore;
-00093         }
-