From: Jason Rumney <jasonr@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: display-mm-width return value off on Windows
Date: Thu, 06 Jul 2006 23:09:36 +0100 [thread overview]
Message-ID: <ubqs22xnj.fsf@jasonrumney.net> (raw)
In-Reply-To: <e8jih2$pn0$1@sea.gmane.org> (Ralf Angeli's message of "Thu, 06 Jul 2006 19:50:26 +0200")
Ralf Angeli <angeli@caeruleus.net> writes:
> - cap = GetDeviceCaps (hdc, VERTSIZE);
> + height = round (GetDeviceCaps (hdc, VERTRES)
> + / GetDeviceCaps (hdc, LOGPIXELSY) * 25.4);
> - cap = GetDeviceCaps (hdc, HORZSIZE);
> + width = round (GetDeviceCaps (hdc, HORZRES)
> + / GetDeviceCaps (hdc, LOGPIXELSX) * 25.4);
Do these get any more accurate if you move the multiplication to
before the division?
cap = round (25.4 * GetDeviceCaps (hdc, VERTRES)
/ GetDeviceCaps (hdc, LOGPIXELSY));
If so, it might be worth changing. Otherwise, the results look just as
broken as what we have now. You may have found two cases where the
results were closer, but it does not follow that they will always be
so if they are still wildly inaccurate.
next prev parent reply other threads:[~2006-07-06 22:09 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-06 17:50 display-mm-width return value off on Windows Ralf Angeli
2006-07-06 21:08 ` Eli Zaretskii
2006-07-06 21:25 ` David Kastrup
2006-07-07 5:56 ` Ralf Angeli
2006-07-07 10:18 ` Eli Zaretskii
2006-07-07 10:22 ` Eli Zaretskii
2006-07-07 12:05 ` Lennart Borgman
2006-07-07 16:54 ` Ralf Angeli
2006-07-08 12:58 ` Eli Zaretskii
2006-07-08 13:23 ` Lennart Borgman
2006-07-08 14:42 ` Eli Zaretskii
2006-07-08 21:27 ` Jason Rumney
2006-07-08 22:23 ` David Kastrup
2006-07-08 23:03 ` Jason Rumney
2006-07-09 7:36 ` Ralf Angeli
2006-07-09 8:03 ` David Kastrup
2006-07-09 7:41 ` Ralf Angeli
2006-07-09 8:05 ` David Kastrup
2006-07-09 18:37 ` Eli Zaretskii
2006-07-10 10:30 ` Kim F. Storm
2006-07-10 10:45 ` David Kastrup
2006-07-10 13:29 ` Jason Rumney
2006-07-10 14:19 ` David Kastrup
2006-07-10 21:28 ` Jason Rumney
2006-07-10 22:05 ` David Kastrup
2006-07-10 20:12 ` Eli Zaretskii
2006-07-10 23:17 ` Kim F. Storm
2006-07-10 23:22 ` David Kastrup
2006-07-11 18:43 ` Ralf Angeli
2006-07-12 13:07 ` Kim F. Storm
2006-07-12 19:22 ` Richard Stallman
2006-07-13 19:38 ` Ralf Angeli
2006-07-13 19:59 ` David Kastrup
2006-07-14 17:03 ` Richard Stallman
2006-07-14 18:16 ` Stefan Monnier
2006-07-14 18:33 ` David Kastrup
2006-07-14 21:37 ` Stefan Monnier
2006-07-15 22:06 ` Ralf Angeli
2006-07-16 17:04 ` Ralf Angeli
2006-07-14 17:03 ` Richard Stallman
2006-07-09 9:31 ` Jan Djärv
2006-07-08 17:40 ` Robert J. Chassell
2006-07-06 22:09 ` Jason Rumney [this message]
2006-07-06 22:37 ` Lennart Borgman
2006-07-07 5:50 ` Ralf Angeli
2006-07-07 9:09 ` Eli Zaretskii
2006-08-05 14:50 ` Ralf Angeli
2006-08-19 15:15 ` Ralf Angeli
2006-08-19 15:37 ` David Kastrup
2006-08-19 16:31 ` Jason Rumney
2006-08-19 17:54 ` Ralf Angeli
2006-08-19 22:34 ` Jason Rumney
2006-08-20 8:19 ` Ralf Angeli
2006-08-21 9:06 ` Eli Zaretskii
2006-08-21 9:17 ` Lennart Borgman
2006-08-21 10:22 ` Eli Zaretskii
2006-08-21 10:36 ` David Kastrup
2006-08-21 11:45 ` Jason Rumney
2006-08-21 11:55 ` David Kastrup
2006-08-21 10:43 ` Lennart Borgman
2006-08-21 14:07 ` Eli Zaretskii
2006-08-21 15:03 ` Lennart Borgman
2006-08-21 19:22 ` Ralf Angeli
2006-08-21 23:10 ` Eli Zaretskii
2006-08-22 5:57 ` Ralf Angeli
2006-08-22 19:16 ` Ralf Angeli
2006-08-22 21:38 ` Kim F. Storm
2006-08-23 18:31 ` Ralf Angeli
2006-08-23 22:44 ` Kim F. Storm
2006-08-24 16:14 ` Ralf Angeli
2006-08-24 20:18 ` Kim F. Storm
2006-08-25 16:38 ` Ralf Angeli
2006-08-25 22:28 ` Kim F. Storm
2006-08-21 23:25 ` Jason Rumney
2006-08-22 5:51 ` Ralf Angeli
2006-08-22 7:46 ` Jason Rumney
2006-08-22 19:24 ` Ralf Angeli
-- strict thread matches above, loose matches on Subject: below --
2006-07-14 23:55 Robert J. Chassell
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