Inkey$ in C++?

This is a discussion on Inkey$ in C++? within the C++ Programming forums, part of the General Programming Boards category; I've looked around teh world and I stumbled on this code here, but I want to beable to make this ...

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    Inkey$ in C++?

    I've looked around teh world and I stumbled on this code here, but I want to beable to make this loop printf the a++ postincrement while at the same time reading to see if a key has been pressed, if your familiar with qbasic, where you put n$ = inkey$ in a loop and it performs that loop w/o any type of pause until a desired key has been pushed. So this getchar waits for me to press a key, and once I press a key it prints a++, but I just want it to print a++ continiously while i can at the same time send/read keystrokes in the program, so im kinda like tryin to understand the concept of multithreading it....
    I was looking at the NCURSES, but not sure if that does something similar or if there are any other approaches, dankeshen, and a good night. BTW This is being compiled on a FreeBSD 5.4, with gcc (GCC) 3.4.2 [FreeBSD] 20040728
    here is the code:

    Code:
    #include <curses.h>
    #include <stdio.h>
    #include <termios.h>
    #include <unistd.h>
    
    int main(void)
    {
        struct termios oldt,
                       newt;
        int            ch,a=0;
    
        while(1) {
           a++;
           printf("%d\n", a);       // i want this to keep printing but i still want some type of getchar
                                    // not pausing the arithmetic
           tcgetattr( STDIN_FILENO, &oldt );
           newt = oldt;
           newt.c_lflag &= ~( ICANON | ECHO );
           tcsetattr( STDIN_FILENO, TCSANOW, &newt );
           ch= getchar();           // this here pauses so a++ wont print continiously ;(
           tcsetattr( STDIN_FILENO, TCSANOW, &oldt );
           printf("%c",ch);
        }
    
        return ch;
    }
    Last edited by reefa; 10-02-2005 at 09:32 PM.

  2. #2
    & the hat of GPL slaying Thantos's Avatar
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    look into the non standard function kbhit()

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    and the hat of wrongness Salem's Avatar
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    > look into the non standard function kbhit()
    Better not, that's conio, and this isn't even DOS.

    There's a similar non-blocking key reading function in ncurses, which is included but unused.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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    & the hat of GPL slaying Thantos's Avatar
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    Well if one was to search the linux board, one would find a kbhit() written for linux

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    Quote Originally Posted by Thantos
    Well if one was to search...
    Most posters lose you right about here.
    If I did your homework for you, then you might pass your class without learning how to write a program like this. Then you might graduate and get your degree without learning how to write a program like this. You might become a professional programmer without knowing how to write a program like this. Someday you might work on a project with me without knowing how to write a program like this. Then I would have to do you serious bodily harm. - Jack Klein

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    Quote Originally Posted by pianorain
    Most posters lose you right about here.
    We should have a 'Best Posts Ever' thread, because that'd hit no. 1.
    Nice one
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