Converts a Variant to a Value.
If value is floating, it is consumed.
The rules specified in the gvalue_to_gvariant function are used - this function is essentially its reverse form.
The conversion never fails - a valid Value is always returned in
out_gvalue.
| value |
A Variant. |
| out_gvalue |
Return location pointing to a zero-filled (uninitialized) Value. |