gobject:value-int64 (gvalue)

gvalue -- a g:value instance of "gint64" type
value -- a 64-bit integer

The 64-bit integer contents of gvalue. The g:value-int64 function gets the contents of a g:value instance of "gint64" type. The (setf g:value-int64) function sets the contents of a g:value instance to value.