Qt accessibility

Qt accessibility

Qt uses AT-SPI directly, on Linux, and exposes a descriptive API like the one I wrote for GTK.

The problem is not to decide whether it's a portable API—it's pretty trivial, and since it's implemented by web browsers, it's fairly obvious it's going to be implementable on top of different platforms. The issue is, as usual, whether or not somebody will show up to help on non-Linux platforms.