LO design problem

[Sand]

Hi there
      I am exploring LO source code now. But I don't understand  some designs in the code,  could someone give me some tips, i.e. why the  message loop in module VCL is designed with several level of "while  loop" and some invocations are send to the message queue with "Link"  class?

Any help will be great!



Sand Wen
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