How to copy turbo c++ out put?

How to copy turbo c++ out put?

How to copy turbo c++ out put ?.i already Google the problem but in vain
.It says press print scrn and paste or right click and mark all and paste
i tried the both but not working. The problem is it's only copy what is
present on the current screen. But i want the whole screen from the
beginning. (alt+printscrn not working either ). how can i tackle this
situation.
printScrn
Alt+printScrn
markall
none of them are not working !!
Thanks in advanced