Returns the interface age as passed to libtool when building the GTK+ library the process is running against. If libtool means nothing to you, don't worry about it.
Return: the interface age of the GTK+ library
3.0
See Implementation
Returns the interface age as passed to libtool when building the GTK+ library the process is running against. If libtool means nothing to you, don't worry about it.
Return: the interface age of the GTK+ library