The launcher, which we know and trust can use this to create a key, pass it to the UWP app, which will be able to register using it as the original application.A message with type
ovrMessage_ApplicationLifecycle_GetSessionKey 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 const char *. Extract the payload from the message handle with
ovr_Message_GetString().