New tooltips API in GTK+ trunk

Well, it finally happened, the new tooltips API hit GTK+ trunk. Ever been annoyed by the fact that GTK+ does not support tooltips on insensitive widgets? Ever wondered about an easy way to implement tooltips for specific tree view rows? The new tooltips API solves these and other issues, to get started quickly see the example application aka test program: gtk+/tests/testtooltips.c. There will be some more improvements in trunk as the code matures; probably a bug fix here and there, and the positioning code isn't quite right yet…