Terminal control/Dimensions: Difference between revisions
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m (Fix categories, move them to the top) |
(→{{header|Ruby}}: Add curses.) |
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=={{header|Ruby}}== |
=={{header|Ruby}}== |
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<lang ruby>def winsize |
<lang ruby>def winsize |
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# |
# Ruby 1.9.3 added 'io/console' to the standard library. |
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require 'io/console' |
require 'io/console' |
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IO.console.winsize |
IO.console.winsize |
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rows, cols = winsize |
rows, cols = winsize |
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printf "%d rows by %d columns\n", rows, cols</lang> |
printf "%d rows by %d columns\n", rows, cols</lang> |
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==={{libheader|curses}}=== |
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<code>Curses.lines</code> and <code>Curses.cols</code> return the size of the terminal. The program ''must'' call <code>Curses.init_screen</code>, because without this call, Curses might report 0 lines and 0 columns. Beware that <code>Curses.init_screen</code> also switches the terminal to screen-oriented mode, and fails on those terminals that cannot support curses. |
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<lang ruby>require 'curses' |
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begin |
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Curses.init_screen |
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r, c = Curses.lines, Curses.cols |
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Curses.setpos r / 2, 0 |
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Curses.addstr "#{r} rows by #{c} columns".center(c) |
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Curses.getch |
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ensure |
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Curses.close_screen |
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end</lang> |
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=={{header|Seed7}}== |
=={{header|Seed7}}== |
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