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Fix #2913

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Kovid Goyal 2020-08-11 20:13:50 +05:30
parent 4b0724530e
commit df0c5d99e6
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1 changed files with 11 additions and 5 deletions
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16
docs/graphics-protocol.rst
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@ -54,18 +54,24 @@ In C:
.. code-block:: c
struct ttysize ts;
ioctl(0, TIOCGWINSZ, &ts);
printf("number of columns: %i, number of rows: %i, screen width: %i, screen height: %i\n", sz.ws_col, sz.ws_row, sz.ws_xpixel, sz.ws_ypixel);
#include <stdio.h>
#include <sys/ioctl.h>
int main(int argc, char **argv) {
struct winsize sz;
ioctl(0, TIOCGWINSZ, &sz);
printf("number of rows: %i, number of columns: %i, screen width: %i, screen height: %i\n", sz.ws_row, sz.ws_col, sz.ws_xpixel, sz.ws_ypixel);
return 0;
}
In Python:
.. code-block:: python
import array, fcntl, termios
import array, fcntl, sys, termios
buf = array.array('H', [0, 0, 0, 0])
fcntl.ioctl(sys.stdout, termios.TIOCGWINSZ, buf)
print('number of columns: {}, number of rows: {}, screen width: {}, screen height: {}'.format(*buf))
print('number of rows: {}, number of columns: {}, screen width: {}, screen height: {}'.format(*buf))
Note that some terminals return ``0`` for the width and height values. Such
terminals should be modified to return the correct values. Examples of