ovr_User_LaunchBlockFlow Function
Launch the flow for blocking the given user. You can't follow, be followed, invited, or searched by a blocked user, for example. You can remove the block via ovr_User_LaunchUnblockFlow. ovrMessage_User_LaunchBlockFlow will be generated in response.
ovrRequest ovr_User_LaunchBlockFlow(ovrID userID)
userID: ovrID
The ID of the user that the viewer is going to launch the block flow request.