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dave
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 Posted: Mon Feb 27, 2006 3:03 pm Post subject: Using Indy 10 Multicast server to send TmemoryStream |
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Hi
The Indy TCP Multicast server's send method says it expects a 'const aBuffer:Tbytes' or 'const aData:string'.
I have been led to believe its possible to send a TBitMap image using TCP Multicast but how would I use this components to do it? Is there another method that I'm unaware of or do I convert the image into a TBytes variable, and if so how?
Many thanks for any help given
D |
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Remy Lebeau (TeamB)
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| Posted: Mon Feb 27, 2006 11:03 pm Post subject: Re: Using Indy 10 Multicast server to send TmemoryStream |
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"dave" <deepthinker (AT) btinternet (DOT) com> wrote in message
news:4403063b$1 (AT) newsgroups (DOT) borland.com...
| Quote: | The Indy TCP Multicast server's send method says it expects a 'const
aBuffer:Tbytes' or 'const aData:string'. |
That is almost correct. The Multicasting components have not been updated
yet to use the TIdBytes type. The overloaded version of Send() that takes a
buffer accepts a raw memory address, which makes things a little easier.
See below.
| Quote: | I have been led to believe its possible to send a TBitMap image using
TCP Multicast but how would I use this components to do it?
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Store the bitmap into a memory stream and then send the contents of the
stream, ie:
var
MStream: TMemoryStream;
begin
MStream := TMemoryStream;
try
Bitmap.SaveToStream(MStream);
...Send(MStream.Memory, MStream.Size);
finally
MStream.Free;
end;
end;
Gambit |
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