This chapter shows how you might get started writing a simple GEOS program, and it explains several fundamental GEOS programming concepts as it goes along. Although this tutorial explicitly refers to the Nokia 9000 SDK version 1.1, it is also applies to the Nokia 9000i SDK version 2.0.
Tutorial Part 1: Compiling
Tutorial Part 2: A New Application
Source Code
Tutorial Part 3: Adding Procedural Code
Source Code With Changes