Hi Extract from SDK Help Hope it is useful to you
All classes are defined in a single header file. Each class implementation is contained in its own .cpp file.
From a command prompt, do the following:
Change to the SDK directory <path>\epoc32ex\HelloWorld.
Type bldmake bldfiles.
Type abld makefile vc6.
This creates the VC++ workspace HelloWorld.dsw in the directory: <path>\epoc32\build\<path>\epoc32ex\HelloWorld\HelloWorld\wins. This file can then be opened in VC++ and built by pressing F7, or by selecting the Build | Build HELLOWORLD.APP from the IDE menu.
For a command line debug emulator build, change the abld command to:
Type abld build wins udeb
The application is now built into the emulator's z:\system\apps\HelloWorld directory, and can be run from the emulator's UI.
For a command line release build to a real phone, change the abld command to:
Type abld build armi urel
The application's files are now built into the <path>\epoc32\release\armi\urel directory, and can be downloaded to a real phone.