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.
ParametersuserIDThe ID of the user that the viewer is going to laucnh the block flow request.
A message with type
ovrMessage_User_LaunchBlockFlow will be generated in response.First call
ovr_Message_IsError() to check if an error occurred.If no error occurred, the message will contain a payload of type
ovrLaunchBlockFlowResultHandle. Extract the payload from the message handle with
ovr_Message_GetLaunchBlockFlowResult().