I've asked a similar question here: How to quickly calculate bounding box coordinates of a selected polygon with qgis
...regarding a quick way to determine the bounding box of a given layer.
Is there any way to do the same thing for the current qgis view? I imagine it is an iface property but cannot find it in the documentation. Thanks.
update: I'm working with the qgis print (map) creator right now, and I've found a button which appears to call a function that I'm alluding to. If you open the print creator, in the right side bar there is a menu button called "Item Properties". Click on this and below there is a submenu called "Extents". Expand that and there is a button called "Set to map canvas extent". This button appears to utilize the function I'm alluding to by extracting the bbox coords of the main qgis map view.