h6. [[WindowManager]] h6(. » [[WindowManager Messages|Messages]] h6((. » [[Message Codes|Message Codes]] h6(((. » Message_DeviceClaim h2. Message_DeviceClaim h5. (Code &B) |_\2<^. Message Block | |>^. +20|<^. Major [[Device Numbers]] | |>^. +24|<^. Minor [[Device Numbers]] | |>^. +28|<^. Information string (zero terminated) | h4. Use This message is broadcast by the task wishing to claim exclusive use of a system device. h4. Notes The information string is zero terminated. h4. See also * [[Device Numbers]] * [[Message_DeviceInUse]] * [[Wimp_Poll]]