how convert a buffer into a C# class

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Jason Zhang - 02 Mar 2005 08:31 GMT

Hi all,
If I have a program wroten in C,and defined a struct like this:
typedef struct data
{
int m_i;
int m_j;
}data;

data myData;

I send Mydata to another program via Ethernet.Just like below:

SocketObj.Send(&myData,sizeof(myData));//assume SocketObj is a Object that
can send msg via Ethernet

and the receiver is wroten in C# or VC++ 7.0 . I define a struct in it
too:
__gc class data : public Object
{
int m_i;
int m_j;
}

But ,how can I fill this class from the stream I got from Ethernet?
I tried BinaryFormatter,but I found that BinaryFormatter's format is not
pure ,
It contains may additive information.So ,BinaryFormatter does not work.

Is there any other way to solve this problem?I do not want to use
XML,although XML does work.

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Antti Keskinen - 03 Mar 2005 13:04 GMT

Hi !

The sender and the receiver must use the same protocol and handshaking
methods. For this purpose, I suggest that you find some Ethernet component
that works in both unmanaged programs and managed programs. This allows you
to build a consistent interface between the two worlds. After the component
has received the data, it can format it anyway you please to fit into the
managed structure.

From MC++, this is an easy step. In those code lines where you use the
component, wrap them into "#pragma unmanaged" sections. This creates an
unmanaged stub to ensure perfect compatibility with unmanaged components
inside a managed application. The C# process requires a COM proxy (P/Invoke)
unless the Ethernet component supports .NET.

-Antti Keskinen

> Hi all,
> If I have a program wroten in C,and defined a struct like this:
[quoted text clipped - 26 lines]
> Is there any other way to solve this problem?I do not want to use
> XML,although XML does work.

Reply to this Message

how convert a buffer into a C# class

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