Returns the 64-bit unsigned integer value of @value.
It is an error to call this function with a @value of any type other than %G_VARIANT_TYPE_UINT64.
a #guint64
2.24
See Implementation
Returns the 64-bit unsigned integer value of @value.
It is an error to call this function with a @value of any type other than %G_VARIANT_TYPE_UINT64.