Symbian os s60 Hello World实例

最新推荐文章于 2016-07-12 10:50:21 发布

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#symbian #os #constants #application #delete #exe

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本文介绍如何在Symbian OS环境下使用C++创建一个简单的控制台应用程序。通过具体的步骤和代码示例，读者可以了解项目的搭建过程，并掌握如何在控制台上输出“Hello, World!”。

一、hello world 控制台应用程序

打开Carbide c/c++ 。

New ->Project ->Symbian OS C++ Project ->Next -> Basic console application (EXE)

输入项目名称helloworld ，选择Symbian SDK，点击Finish。

helloworld.cpp

/* ============================================================================ Name : helloworld.cpp Author : YueM Copyright : Your copyright notice Description : Exe source file ============================================================================ */ // Include Files #include "helloworld.h" #include <e32base.h> #include <e32std.h> #include <e32cons.h> // Console // Constants _LIT(KTextConsoleTitle, "Console"); _LIT(KTextFailed, " failed, leave code = %d"); _LIT(KTextPressAnyKey, " [press any key]/n"); // Global Variables LOCAL_D CConsoleBase* console; // write all messages to this // Local Functions LOCAL_C void MainL() { // // add your program code here, example code below // console->Write(_L("Hello, world!/n")); } LOCAL_C void DoStartL() { // Create active scheduler (to run active objects) CActiveScheduler* scheduler = new (ELeave) CActiveScheduler(); CleanupStack::PushL(scheduler); CActiveScheduler::Install(scheduler); MainL(); // Delete active scheduler CleanupStack::PopAndDestroy(scheduler); } // Global Functions GLDEF_C TInt E32Main() { // Create cleanup stack __UHEAP_MARK; CTrapCleanup* cleanup = CTrapCleanup::New(); // Create output console TRAPD(createError, console = Console::NewL(KTextConsoleTitle, TSize( KConsFullScreen, KConsFullScreen))); if (createError) { delete cleanup; return createError; } // Run application code inside TRAP harness, wait keypress when terminated TRAPD(mainError, DoStartL()); if (mainError) console->Printf(KTextFailed, mainError); console->Printf(KTextPressAnyKey); console->Getch(); delete console; delete cleanup; __UHEAP_MARKEND; return KErrNone; }