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Mixed type messages and C++ API

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Deley

Posted: Sun Apr 28, 2002 5:34 pm Post subject:

Newbie

Joined: 27 Apr 2002
Posts: 1
Location: Brazil

Hi, my messages are defined something like this:
struct MY_MSG{
int ID;
char description[256];
float value;
}
I'm trying to pass a variable of type MY_MSG as the message. I've been studing the C++ API and the sample codes and I haven't found yet a way to pass a struct as the message.
How can I do that?

I think another way to realize that is to subclass the ImqItem, but I have no idea how to do that. If so, could we send me an example?

Thanks in advance.

kolban

Posted: Sun Apr 28, 2002 7:15 pm Post subject:

Grand Master

Joined: 22 May 2001
Posts: 1072
Location: Fort Worth, TX, USA

It would look like you use the write() method of the ImbMessage object passing in the pointer to the start of the storage for the structure in memory plus its size in bytes. This will create a message containing a copy of the structure which can then be put to the queue.

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