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Re: display-mm-width return value off on Windows
From: |
Ralf Angeli |
Subject: |
Re: display-mm-width return value off on Windows |
Date: |
Fri, 07 Jul 2006 07:56:31 +0200 |
* Eli Zaretskii (2006-07-06) writes:
>> From: Ralf Angeli <address@hidden>
>>
>> display-mm-* display-mm-*
>> Real size without patch with patch
>> Width 330mm 320 305
>> Height 207mm 240 203
>
> That is still not a very good approximation, is it?
The values are more accurate than before. With the change Jason
suggested they might improve even more. If I find time I'll ask the
user who originally reported the problem to check a version of Emacs
with the change applied.
>> - cap = GetDeviceCaps (hdc, VERTSIZE);
>> + height = round (GetDeviceCaps (hdc, VERTRES)
>> + / GetDeviceCaps (hdc, LOGPIXELSY) * 25.4);
>
> What is this magic constant 25.4?
As David wrote: millimeters per inch
--
Ralf
- display-mm-width return value off on Windows, Ralf Angeli, 2006/07/06
- Re: display-mm-width return value off on Windows, Eli Zaretskii, 2006/07/06
- Re: display-mm-width return value off on Windows, David Kastrup, 2006/07/06
- Re: display-mm-width return value off on Windows,
Ralf Angeli <=
- Re: display-mm-width return value off on Windows, Eli Zaretskii, 2006/07/07
- Re: display-mm-width return value off on Windows, Eli Zaretskii, 2006/07/07
- Re: display-mm-width return value off on Windows, Lennart Borgman, 2006/07/07
- Re: display-mm-width return value off on Windows, Ralf Angeli, 2006/07/07
- Re: display-mm-width return value off on Windows, Eli Zaretskii, 2006/07/08
- Re: display-mm-width return value off on Windows, Lennart Borgman, 2006/07/08
- Re: display-mm-width return value off on Windows, Eli Zaretskii, 2006/07/08
- Re: display-mm-width return value off on Windows, Jason Rumney, 2006/07/08
- Re: display-mm-width return value off on Windows, David Kastrup, 2006/07/08
- Re: display-mm-width return value off on Windows, Jason Rumney, 2006/07/08