Detecting keypresses in an endless loop

[dgipling]

I working with an application written in Visual Studio C++. Then program is a console application running under the DOS-prompt. The program is something like this.

void main ()
{
    for ( ;; )
    {
        do_something ();
        do_something_more ()
    }
}

Now I need to add some code between do_something () and do_something_more () that checks if any key on the PC-s keyboard is pressed, and if so read that key. The problem is that the program must continue with do_something_more () if no key is used. I can not wait for the keypress, the program must continue executing as before if no key is pressed. I have not been able to figure out how to do this for this type of application. Anybody can give me a hint of how to do this?

[deceptikon]

Visual C++ supports kbhit() and getch() in the conio.h library, together they do what you want.

[np complete]

GetAsyncKeyState() can also be used for this purpose. Check this.

[WaltP]

And main() is NOT void. It's int.

[dgipling]

Thanks a lot, this was exactly what I needed.

[richieking]

And always main() must be int method not void as it returns a value.