ncurses terminal size | 易学教程

问题

How do I find the terminal width & height of an ncurses application?

回答1:

void getmaxyx(WINDOW *win, int y, int x); i believe...

also, this may help...

Getting terminal width in C?

回答2:

ncurses applications normally handle SIGWINCH and use the ioctl with TIOCGWINSZ to obtain the system's notion of the screensize. That may be overridden by the environment variables LINES and COLUMNS (see use_env).

Given that, the ncurses global variables LINES and COLS are updated as a side-effect when wgetch returns KEY_RESIZE (in response to a SIGWINCH) to give the size of stdscr (the standard screen representing the whole terminal).

You can of course use getmaxx, getmaxy and getmaxyx to get one or both of the limits for the x- and y-ordinates of a window. Only the last is standard (and portable).

回答3:

i'm using this code:

struct winsize size;
if (ioctl(0, TIOCGWINSZ, (char *) &size) < 0)
    printf("TIOCGWINSZ error");
printf("%d rows, %d columns\n", size.ws_row, size.ws_col);

回答4:

What about using SCR_H and SCR_W?

回答5:

the variables COLS, LINES are initialized to the screen sizes after initscr().

Source: NCURSES Programming HOWTO

I'm not sure if they get updated on resize though.

来源：https://stackoverflow.com/questions/1811955/ncurses-terminal-size

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ncurses