| Från: |
"Dave Yeo" <gnuports@2rosenthals.com> |
Meddelandehuvud
Oavkodat meddelande |
| Ämne: |
Re: [GNU Ports] Terminal width? |
| Datum: |
Sat, 14 May 2022 18:52:07 -0700 |
| Till: |
GNU Ports for eCS Mailing List <gnuports@2rosenthals.com> |
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On 05/14/22 11:35 AM, Steven Levine wrote:
In <list-3690493@2rosenthals.com>, on 05/14/22
at 10:29 AM, "Dave Yeo" <gnuports@2rosenthals.com> said:
Hi Dave,
Need something like this, but we are missing TIOCGWINSZ()
int term_width(int fd)
{
struct winsize geometry;
geometry.ws_col = 0;
if(ioctl(fd, TIOCGWINSZ, &geometry) >= 0)
return (int)geometry.ws_col;
return -1;
}
Ideas? Even OS/2 API?
Assuming this is a VIO app, the Vio functions are your friends.
VioGetMode should give you what you need.
Hunting for example code, I found in libc (and EMX where it is documented),
Headers:
#include <stdlib.h>
Prototype:
void _scrsize (int *dst);
Compatibility:
emx
Description:
Retrieve the screen (window) size. The number of text columns (width) is stored to dst[0], the number of text rows (height) is stored to dst[1].
See also: v_dimen()
Does this code make sense?
/* Also serves as a way to detect if we have an interactive terminal. */
#ifndef __OS2__
int term_width(int fd)
{
struct winsize geometry;
geometry.ws_col = 0;
if(ioctl(fd, TIOCGWINSZ, &geometry) >= 0)
return (int)geometry.ws_col;
return -1;
}
#else
int term_width(int fd)
{
int dst[1];
void _scrsize (int *dst);
return dst[0];
}
#endif
Thanks,
Dave
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