Autodesk ObjectARX

[#1]

I am learning XData, and there is several things i do not understand about it. The help file is not much of a help, so can someone please give me an example to create a simple (string/integer type) Xdata, that would be a big help

Or at the very least, please tell me how to check if a XData is working or not. Right now, i got some code without bug, but I do not know this is because i got the code right or simply forgot to add some critical line.

[#2]

The ObjectARX SDK has a sample specifically for XData, and parts of that sample are in the Developer's Guide.

The sample is located in samples\database\xdata_dg.

[#3]

This example seem to be written for VS 2003 , so when i try to build it with VS2005 or VS2008, it got an error LNK1104: cannot open file 'mfc70.lib'. And since I can not downgrade my VS any further, so testing is not possible now.
Beside, this example create a Xdata with both CString variable. Is it possible to add 1 integer variable into the same XData ?

Thanks in advance !

[#4]

Which ObjectARX SDK version do you have?  I'm using what will be the 2013 ObjectARX SDK and when I build the xdata sample using VS 2010, I don't get any errors and I don't have an mfc70.lib on my machine.

Sure you can add an integer as well as a string.  I haven't tested this, but something like it should work.  The lines up to the assert(err == 0); are from the sample.  I just added the three lines at the end.:

    // Add user-specified string to the xdata.
    //
    pTemp->rbnext = acutNewRb(AcDb::kDxfXdAsciiString);
    pTemp = pTemp->rbnext;
    const size_t nSize = _tcslen(resString) + 1;
    pTemp->resval.rstring
        = (TCHAR*) malloc(nSize * sizeof(TCHAR));
    errno_t err = _tcscpy_s(pTemp->resval.rstring, nSize, resString);
    assert(err == 0);

    pTemp->rbnext = acutNewRb(AcDb::kDxfXdInteger32);
    pTemp = pTemp->rbnext;
    pTemp->resval.rlong = 146; // or whatever 32-bit int value you want