实现显示器的尺寸大小的批处理 - 中国DOS联盟论坛

Sorry I can't type Chinese currently...
First of all, you have to understand when we're talking about the SIZE of a monitor, we're ACTUALLY talking about the MAX viewable image size of a monitor, or "diameter".

I have to say, due to no direct info about diameter is provided, it's not easy to get the diameter of your monitor without the help of a 3rd party tool.
(BTW, the resolution is easy to get, however it can't be used to calculate the diameter of your monitor.)

Recently in a computer, all info about the monitor come from EDID(a VESA defined data structure, for detail: http://en.wikipedia.org/wiki/EDID). EDID BYTE 21 and BYTE 22 define the horizontal/vertical MAX viewable image size, separately.
You could get EDID via I2C, perform a calculation with EDID BYTE 21 and BYTE 22, and a conversion from centimeter to inch, the result you get is very close to the desired monitor-size.

Another approach is much easier: by the name of the monitor, like "DELL E228WFP" indicating 22-inch. However even if you could get the name from EDID or Windows Registry, this isn't a reliable approach for 2 reasons.
1st reason: NOT all monitor names reflect the sizes, like "EPI EnVision EN-775e", what the hell is this size?
2nd reason: It's NOT easy to parse the name. Every naming convention differs among monitor vendors.

Best way:
You could use this tool: http://www.nirsoft.net/utils/dumpedid.zip (for Windows ONLY) to get EDID and diameter.
usage: DumpEDID.exe > YourFile.txt
or: DumpEDID.exe \\remote01 > YourFile.txt

Here's a typical output by DumpEDID.exe:
(NOTICE the text in RED)
************************************************************
Registry Key : DISPLAY\DELD015\5&1f944c2&0&UID16777488
Monitor Name : DELL E228WFP
Serial Number : PN38083P0SVM
Manufacture Week : 13 / 2008
ManufacturerID : 44048 (0xAC10)
ProductID : 53269 (0xD015)
Serial Number (Numeric) : 810767949 (0x3053564D)
EDID Version : 1.3
Display Gamma : 2.20
Vertical Frequency : 56 - 75 Hz
Horizontal Frequency : 30 - 83 KHz
Image Size : 47.3 X 29.6 cm (22.0 Inch)
Maximum Image Size : 47 X 30 cm (22.0 Inch)
Maximum Resolution : 1280 X 1024
Support Standby Mode : Yes
Support Suspend Mode : Yes
Support Low-Power Mode : Yes
Support Default GTF : No
Digital : Yes

Supported Display Modes :

720 X 400 70 Hz
640 X 480 60 Hz
640 X 480 75 Hz
800 X 600 60 Hz
800 X 600 75 Hz
1024 X 768 60 Hz
1024 X 768 75 Hz
1280 X 1024 75 Hz
1152 X 864 75 Hz
1280 X 1024 60 Hz

************************************************************

Sometimes we'll get diameters like 18.9 Inch or 17.1 Inch. It's not a big problem, I believe you know the right thing to do. ^ _ ^.
.
.

[ Last edited by azziporah on 2009-12-2 at 08:59 ]

第1楼　dengxinhuaisme	发表于 2009-11-15 13:45
新手上路　发帖 5　积分 11　来自湖南
实现显示器的尺寸大小的批处理各位大侠好，小弟想提一个问题。怎样用批处理判断显示器的尺寸大小呢？然后将得到的判断节果写入一个文本文档中。然后再将此文本文档命名为显示器尺寸的名字，如：是17寸的，则命名为17.txt 小弟很菜鸟，不过很热爱批处理，后面的重命名我还是会的。

第2楼　AlexZhang	发表于 2009-11-15 22:41
系统支持　发帖 438　积分 1,023
尺寸大小?这个要看显示器驱动了吧,不是显卡驱动.我看Xorg实现了,但是移植到DOS可能不现实

第3楼　dengxinhuaisme	发表于 2009-11-16 09:10
新手上路　发帖 5　积分 11　来自湖南
就是用批处理判断显示器是十几英寸的。不知道怎么实现

第4楼　boylovedos	发表于 2009-11-22 20:52
新手上路　发帖 4　积分 10
好难的！我不会——观察中的小菜鸟；有会的——度假中的高手们。让我们耐心等等吧！

第5楼　azziporah	发表于 2009-12-01 10:45
初级用户　发帖 47　积分 102
Sorry I can't type Chinese currently... First of all, you have to understand when we're talking about the SIZE of a monitor, we're ACTUALLY talking about the MAX viewable image size of a monitor, or "diameter". I have to say, due to no direct info about diameter is provided, it's not easy to get the diameter of your monitor without the help of a 3rd party tool. (BTW, the resolution is easy to get, however it can't be used to calculate the diameter of your monitor.) Recently in a computer, all info about the monitor come from EDID(a VESA defined data structure, for detail: http://en.wikipedia.org/wiki/EDID). EDID BYTE 21 and BYTE 22 define the horizontal/vertical MAX viewable image size, separately. You could get EDID via I2C, perform a calculation with EDID BYTE 21 and BYTE 22, and a conversion from centimeter to inch, the result you get is very close to the desired monitor-size. Another approach is much easier: by the name of the monitor, like "DELL E228WFP" indicating 22-inch. However even if you could get the name from EDID or Windows Registry, this isn't a reliable approach for 2 reasons. 1st reason: NOT all monitor names reflect the sizes, like "EPI EnVision EN-775e", what the hell is this size? 2nd reason: It's NOT easy to parse the name. Every naming convention differs among monitor vendors. Best way: You could use this tool: http://www.nirsoft.net/utils/dumpedid.zip (for Windows ONLY) to get EDID and diameter. usage: DumpEDID.exe > YourFile.txt or: DumpEDID.exe \\remote01 > YourFile.txt Here's a typical output by DumpEDID.exe: (NOTICE the text in RED) ********************************************************** Registry Key : DISPLAY\DELD015\5&1f944c2&0&UID16777488 Monitor Name : DELL E228WFP Serial Number : PN38083P0SVM Manufacture Week : 13 / 2008 ManufacturerID : 44048 (0xAC10) ProductID : 53269 (0xD015) Serial Number (Numeric) : 810767949 (0x3053564D) EDID Version : 1.3 Display Gamma : 2.20 Vertical Frequency : 56 - 75 Hz Horizontal Frequency : 30 - 83 KHz Image Size : 47.3 X 29.6 cm (22.0 Inch) Maximum Image Size : 47 X 30 cm (22.0 Inch) Maximum Resolution : 1280 X 1024 Support Standby Mode : Yes Support Suspend Mode : Yes Support Low-Power Mode : Yes Support Default GTF : No Digital : Yes Supported Display Modes : 720 X 400 70 Hz 640 X 480 60 Hz 640 X 480 75 Hz 800 X 600 60 Hz 800 X 600 75 Hz 1024 X 768 60 Hz 1024 X 768 75 Hz 1280 X 1024 75 Hz 1152 X 864 75 Hz 1280 X 1024 60 Hz ******************************************************** Sometimes we'll get diameters like 18.9 Inch or 17.1 Inch. It's not a big problem, I believe you know the right thing to do. ^ _ ^*. . . [ Last edited by azziporah on 2009-12-2 at 08:59* ]

第6楼　xuantian	发表于 2009-12-07 16:21
高级用户　发帖 282　积分 587
楼上的东东不错,可惜使用宽屏后才知道使用宽屏很痛苦:)

第7楼　chishingchan	发表于 2009-12-09 01:13
银牌会员　发帖 538　积分 1,284
对于我的10.2英寸的本本没效，显示是142英寸。支持的分辨率是空的。