GQuark identifying the given string. If the string does
not currently have an associated
GQuark, a new
GQuark is created,
using a copy of the string.
This function must not be used before library constructors have finished running. In particular, this means it cannot be used to initialize global variables in C++.
The argument can be
The data is owned by the caller of the function. The value is a NUL terminated UTF-8 string.