Thread: non-blocking keyboard input?

So ive been searching the web all over to find the right solution for a program im making, the program uses SDL to display a simulation. what i WANT to do, is make it so when i press a key, such as plus or minus, it changes the simulation or changes some variable, etc.
something that can accomplish this:

Code:

while 1
{
if (keypressed = some key) do this;

//simulation
}

Thanks a ton in advance!
Jeromy

If your compiler's library has conio.h you can use kbhit() and getch() ... but normally the keyboard is a blocking input.

Im using gcc in Fedora, how exactly is kbhit used?

conio.h is an old carry-over from the DOS days, and there's no Linux port I'm aware of. But in Linux, you can use the curses (or ncurses) library for what you're after.

okay, could you give me an example?

The problem im seeing with ncurses is that in all the examples im seeing it sets up some window that it receives the input from, but that window wont work alongside my SDL window.

I found this link getch alternative in SDL. This seems to address your problem.

Jim

Thanks! i think thats fixed it!