Elliptic Curve key generation help

[Tom Leavy]

I have been trying to figure out how to generate an elliptic curve public
private key pair and can't find much information on how you properly do
that. So far I have done the following and I'm pretty sure I am missing a
step someplace.

void makeECCKeyPair() {

    EC_KEY *testKey = EC_KEY_new();

    EC_KEY_generate_key(testKey);

}