[Lazarus] PostMessage return value

[Michael Schnell]

On 09/18/2014 10:32 AM, Xiangrong Fang wrote:
>
>
>
> I don't quite understand the logic or difference between critical section
> and events.

They have nothing in common.

TCriticalSection is a Semaphore (see Wikipedia)

An event is a callback procedure -> 
https://en.wikipedia.org/wiki/Callback_%28computer_programming%29

Sorry, but you will not be able to do such a project unless you 
understand such basic computer science primitives.

-Michael
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