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cncursescurses

How do I use getch from curses without clearing the screen?

I'm learning to program in C and want to be able to type characters into the terminal while my code is running without pressing return. My program works, however when I call initscr(), the screen is cleared - even after calling filter(). The documentation for filter suggests it should disable clearing - however this is not the case for me.

#include <stdio.h>
#include <curses.h>
#include <term.h>

int main(void) {

    int ch;

    filter();
    initscr();
    cbreak();
    noecho();
    keypad(stdscr, TRUE);

    while((ch = getch()) != EOF);

    endwin();

    return 0;
}

Why does the above code still clearr the screen, and what could be done to fix it?

I'm using Debian Lenny (stable) and gnome-terminal if that helps.

Solution

  • Use newterm() instead of initscr(), you should be fine then. And don't forget about delscreen() if you follow this advice.