End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →
instance method
IO#winsize
io.winsize → [rows, columns]
ext/io/console/console.c
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static VALUE
console_winsize(VALUE io)
{
rb_io_t *fptr;
int fd;
rb_console_size_t ws;
GetOpenFile(io, fptr);
fd = GetWriteFD(fptr);
if (!getwinsize(fd, &ws)) sys_fail_fptr(fptr);
return rb_assoc_new(INT2NUM(winsize_row(&ws)), INT2NUM(winsize_col(&ws)));
}
Returns console size.
You must require ‘io/console’ to use this method.