a non blocking getch() ????

[compuKidd]

I have a loop whose running time is really longe and I want to save my variables before the loop finishes if requested by the user, but I don't want to block (wait for user to answer), like I need a method to check after an iteration finishes if the user have enterd a spesific key (say 's') if yes then save if not then continue to the other iteration.

now this can't be done by _getch() of cin since both will wait for the user to input something (i.e. is the user didn't press anything the execution will halt on them) so is there a function or a trick to just see if the user entered anything without halting for an input?

if the idea is not clear tell me to clarify further

any help will be appriciated

[0xC0000005]

Is this a console app? Maybe the old _kbhit() DOS function is still available and you can check for a keyboard hit in your loop before calling getch().

If it's a Windows app you should implement keyboard message handlers in your window.

[compuKidd]

its a console application, and how exactly do I check for a keyboard hit? (without waiting)

[compuKidd]

yes thanks _kbhit() works