Multithreaded user application 'exampleB23':
  - title        : XMTGuiAppBlockingSrvTask - RC
  - location     : ~/xcofdk/tests/xuserapp/basic/xmt/sc/exampleB23/
  - description  : This Tk application uses a synchronous main task and multiple asynchronous service tasks.
                   It demostrates use of blocking external queues.
  - remark(s)    : This example uses rapid construction (RC) approach to create application tasks.
