Why getch() returns before press any key?

Question

int main(int argc, char *argv[], char *env[])
{
    printf(\"Press any key to exit.\\n\");
    getch();
    return 0;
}

According to the man page,<

Answer 1

Here's a minimal example

#include 

int main(){
    initscr();
    cbreak();
    noecho();
    printw("Press any key to continue.");
    refresh();
    getch();
    endwin();
    return 0;
}

But there doesn't seem to be any way to use ncurses without clearing the screen. The Stain of Overkill, perhaps?!

Edit

Here's another way I got working. This does not use curses, nor does it clear the screen.

#include 
#include 
#include 

int main() {
    struct termios old,new;

    tcgetattr(fileno(stdin),&old);
    tcgetattr(fileno(stdin),&new);
    cfmakeraw(&new);
    tcsetattr(fileno(stdin),TCSANOW,&new);
    fputs("Press any key to continue.",stdout);
    fflush(NULL);
    fgetc(stdin);
    tcsetattr(fileno(stdin),TCSANOW,&old);

    return 0;
}

The manpage says cfmakeraw() might not be fully portable. But it's just a shorthand for setting a whole mess of flags:

Raw mode
    cfmakeraw() sets the terminal to something like the "raw" mode of the old  Version  7  terminal
    driver:  input  is  available character by character, echoing is disabled, and all special pro-
    cessing of terminal input and output characters is disabled.  The terminal attributes  are  set
    as follows:

       termios_p->c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP
                       | INLCR | IGNCR | ICRNL | IXON);
       termios_p->c_oflag &= ~OPOST;
       termios_p->c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
       termios_p->c_cflag &= ~(CSIZE | PARENB);
       termios_p->c_cflag |= CS8;