Return code

Reason code	Value	Description
VP_RC_SUCCESS	0	Request has completed successfully
VP_RC_VERSION_MISMATCH	1	VP.h and the SDK library are from different builds
VP_RC_NOT_INITIALIZED	2	No longer used
VP_RC_ALREADY_INITIALIZED	3	No longer used
VP_RC_STRING_TOO_LONG	4	If any of the given string parameters exceed the maximum length for the operation (when using UTF-8 encoded characters they can each be multiple bytes long)
VP_RC_INVALID_LOGIN	5	Incorrect username of password
VP_RC_WORLD_NOT_FOUND	6	No such world is connected to the universe
VP_RC_WORLD_LOGIN_ERROR	7	Could not enter world (e.g. incorrect world address configured) or banned (not yet implemented)
VP_RC_NOT_IN_WORLD	8	World request made while not connected to a world server
VP_RC_CONNECTION_ERROR	9	Unable to connect to universe, or waiting for events failed
VP_RC_NO_INSTANCE	10	No longer used
VP_RC_NOT_IMPLEMENTED	11	Requested operation is not implemented for bots (only available in the browser)
VP_RC_NO_SUCH_ATTRIBUTE	12	Invalid attribute (has an enum value that is out of range)
VP_RC_NOT_ALLOWED	13	Not allowed to perform the requested operation
VP_RC_DATABASE_ERROR	14	Unspecified database error
VP_RC_NO_SUCH_USER	15	No user with a matching user id (or name) was found
VP_RC_TIMEOUT	16	It took too long to receive a response from the server
VP_RC_NOT_IN_UNIVERSE	17	Universe request made while not connected to a universe server
VP_RC_INVALID_ARGUMENTS	18	???
VP_RC_OBJECT_NOT_FOUND	19	???
VP_RC_UNKNOWN_ERROR	20	Unknown error
VP_RC_RECURSIVE_WAIT	21	vp_wait() was called recursively on the same instance
VP_RC_JOIN_DECLINED	22	Join request was declined
VP_RC_SECURE_CONNECTION_REQUIRED	23	???
VP_RC_HANDSHAKE_FAILED	24	???
VP_RC_VERIFICATION_FAILED	25	???
VP_RC_NO_SUCH_SESSION	26	No user with the specified session is currently connected to the universe
VP_RC_NOT_SUPPORTED	27	Operation is not supported for this instance
VP_RC_INVITE_DECLINED	28	Invite request was declined