Lynda.com Up And Running With R.torrent UPDATED
You are ready to dive into the PyQGIS API now. In this section, we will focus on the QgisInterface class - which provides methods for interaction with the QGIS environment. When QGIS is running, a variable called iface is set up to provide an object of the class QgisInterface to interact with the running QGIS environment. This interface allows access to the map canvas, menus, toolbars and other parts of the QGIS application. Python Console and Plugins can use iface to access various parts of the QGIS interface.
Lynda.com Up and Running with R.torrent