generating an excel graph with C++

I need some help to generate with a C++ programm a file in Excel format
(or at least in a way that all the information in it can be read by
Excel) containing a graph with the data I choose. As an example I
include a simple script that generates an output file with two columns
of integers and I` d like to add in it a graph in the same file so that
when you open the output file aaa.xls with Excel both the numrical data
and graph are present.

Thanks,
George

#include <fstream>

using namespace std;

int main()

{

double a[10]= {1,2,3,4,5,6,7,8,9,10};

double b[10]= {11,12,13,14,15,16,17,18,19,20};

ofstream fout;

fout.open("aaa.xls");

int n= 0;

for(n= 0; n< 10; n++)

{

fout<< a[n]<<"\t"<<b[n]<<endl;

}

fout.close();

return 0;

"george" <[email protected]> wrote in message
news:[email protected]...
> I need some help to generate with a C++ programm a file in Excel format
> (or at least in a way that all the information in it can be read by
> Excel) containing a graph with the data I choose. As an example I
> include a simple script that generates an output file with two columns
> of integers and I` d like to add in it a graph in the same file so that
> when you open the output file aaa.xls with Excel both the numrical data
> and graph are present.
>
> Thanks,
> George
>

You need to use COM or some 3rd party library that can create Excel files.
Your best bet is probably to search for VB code that does this. Here are a
few links I found elsewhere:

Articles on Office 2003 & code behind (VSTO)
http://msdn.microsoft.com/library/de...VSTMGBLab6.asp
http://msdn.microsoft.com/vstudio/of...stointro_link2
http://www.developer.com/net/cplus/article.php/3289051
http://www.officezealot.com/Office2003Zone/vsto.aspx
http://www.c-sharpcorner.com/OfficeNet.asp
http://msdn.microsoft.com/vstudio/office/default.aspx (Good ones)
http://msdn.microsoft.com/library/de...VSTMGBLab6.asp
http://msdn.microsoft.com/vstudio/of...l/excelobj.asp
http://msdn.microsoft.com/vstudio/of...vstsqlexcl.asp
http://support.microsoft.com/?kbid=306572

/ Fredrik