Calulating Elapsed Time of any EXE

Hi,
Iam new to this message board. I just want a C++ application to calculate the elapsed time between the starting time and ending time of any application (EXE) running background. I will be grateful if anyone can help me with source code. Eagerly expecting your replies.

include the header file time.h for C

Code:

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printf("The running time is: %lf\n",(double)clock()/(double)CLOCKS_PER_SEC);

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include the ctime header file for C++

Code:

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cout<<"The running time is: " << ( (double)clock() / (double)CLOCKS_PER_SEC ) << endl;

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