Re: Multicast receiver program problem !!

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#785

From: Remy Lebeau (TeamB)
Date: Thu, 08 Nov 2007 04:12

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"Shiu-Huei-Huang" <huei.huan@msa.hinet.net> wrote in message
news:473285e6$1@newsgroups.borland.com...

> I write a multicast receiver program !
> But It doesnt work!

Just saying that something does not work says nothing about the actual
problem you are having with it.  You need to be more specific.

>  char RcvMsg[8192];
>  AData->ReadBuffer(RcvMsg,sizeof(RcvMsg));
>  RcvLogMemo1->Lines->Add(AnsiString(RcvMsg));

You are not checking the return value of ReadBuffer() or the Size property
of AData to know how many bytes have actually been received.  You are also
not taking into account that the OnRead event is triggered in the context of
a worker thread, not the main thread, so your access to the TMemo is not
thread-safe.


Gambit

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Subject: Re: Multicast receiver program problem !!
Date: Wed, 7 Nov 2007 20:12:49 -0800
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