# Lock (Kernel)

`Lock`(resourceType resourceNumber [lock])

  Important

  SCI1.1 only.

  Locks or unlocks resources of a certain type. Locking presuambly prevents a resource from being unloaded, so it is likely a performance optimization.

  Parameters: | resourceType (number) – A resource type, e.g. rsVIEW, rsPIC, etc... resourceNum (number) – A resource number, or $ffff for all resources of that type. lock (boolean) – If TRUE or unspecified, the resource(s) is locked. Otherwise they are locked.