Is there a function in C++ that waits for the user to press a key and move after sometime if the key not press?

Question

Such as, In visual C++, we can take a key from the user by:
key=getch();

Now the program execution will not continue until the user presses a key; I want that the program should continue to execute if the user does not press any key within 5 seconds.

Answer 1

here's the pseudocode



void GetInput(){

key=getch();

}



int main(){

~~code here

createThread(GetInput);

while( key has not changed){

~~loop for 5 seconds or so

}

}

Answer 2

So what you should do is create a thread, and if you don't hear from it in 5 seconds kill it and continue.



Use WaitForSingleObject() windows function. Look it up under msdn



If you're on Linux:

use

pthread_cond_timedwait



struct timespec ts;

clock_gettime(CLOCK_REALTIME, &ts);

ts.tv_sec += 10; // ten seconds

while (!some_condition && ret == 0)

ret = pthread_cond_timedwait(&cond, &mutex, &ts);

Answer 3

simple solution:



check the time -- store

loop checking the time and kbhit()

if kbhit() is true then get the character hit and do something

else if time is 5 seconds more than the first (stored) time go do something else.