If I have a print composer called "ABC", I would like to "tell" its composer that I would like to
- update "Map 0" to simulate the "set to map canvas extent" button activation
- update certain text labels
- activate "export to image"
On the topic of print output from pyQGIS: http://www.qgis.org/pyqgis-cookbook/composer.html (Note: master has
Basically, in 1.8, you have to create the composition (with map, labels, etc.) from scratch in code anyway. So no updates are needed.