Plus-hangout-samples - It's sample code... for Google+ Hangout Apps. Starting from scratch is always much harder than modifying already working code.
There's nothing like seeing features in action before you try to use them. The Hangout Apps hosted here come in two flavors each with their own intended use. Sample Apps This project hosts several sample apps. They showcase features of Hangout Apps. Creating a User Interface - Gadgets API - Google Code. This document describes how to add different user interface elements to your gadget.
Contents Views A view is a location where a gadget is displayed. Different views have different characteristics. APIs Console. I/O 2011. I/O 2011.