I have an app that is trying to display U+23CE (⏎). This is a terminal app, so we are using "Consolas"/"Cascadia"/"Courier". As far as I can see, none of these fonts have this character. And yet, in Visual Studio, when I am debugging this app, it actually displays it correctly in the debugger. Also, when displayed by the new Windows Terminal, it displays correctly. But when I use the app I am working with (actually Putty), it displays the "I don't know this character" glyph.
Putty is a classic Win32 app using ExtTextOutW() to draw that text. I have checked that the correct font is bound to the HDC.
I am assuming that Visual Studio and Windows Terminal are using DirectWrite or other more modern text output logic, but ultimately they have to be getting these unknown glyphs from somewhere.
UPDATE:
I found a font with that character ("Segue UI Symbol"), and if I set Putty to use that font, it displays the missing character (woohoo). Sadly, this is a proportional font, so it looks terrible, and this is not the solution.
#dvix pointed me at a Microsoft page discussing this exact topic, but its not clear which things are done by Windows and which by an app developer. I tried linking "Courier New" (Putty's default) to "Segoe Symbol"", but it made no difference. Does the Putty code need to do all the work itself? Detect an unknown character, read the Registry, and substitute the font for that one char? That is certainly doable, but a pain.
Windows can be directed to "borrow" missing glyphs in a font from another font that carries them using font linking. This applies to both consoles and GUI apps that use GDI (DrawText, ExtTextOut) to render text in Windows 2000 and later.
For example, the following registry entry will link the Consolas font to Segoe UI Symbol (the following can be saved as a .reg file and merged into the registry, will take effect at the next logon).
REGEDIT4
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\FontLink\SystemLink]
"Consolas"=hex(7):53,45,47,55,49,53,59,4d,2e,54,54,46,2c,53,65,\
67,6f,65,20,55,49,20,53,79,6d,62,6f,6c,00,00
; "Consolas"=REG_MULTI_SZ:"SEGUISYM.TTF,Segoe UI Symbol"
One handy tool to explore coverage of the different fonts is BabelMap. For example this is the list of fonts that carry U+23CE (⏎) on a fairly clean Win10 system.
Another feature of BabelMap is the option to create temporary user-defined composite fonts on the fly, as opposed to the ones "statically" defined in the registry. This is presumably done using the MLang
IMLangFontLink interface, more about that in Raymond Chen's How to display a string without those ugly boxes and Michael Kaplan's Font substitution and linking #2.
I want to type and print in windows 10 CMD sinhala unicode characters. but it just display question mark surrounded by a square for each sinhala character i type.
Is there any mechanism to display exact unicode characters in windows console?
Try modifying the registry settings for the cmd console (run regedit). Unfortunately, I am uncertain exactly which value you should enter for the font family, since it is a number.
The screen shot below shows my registry settings for a font of 'Courier New', which somehow translates to 30 (hexidecimal, 48 in base 10) in the registry. Hopefully you can experiment some and determine what number corresponds to a Sinhala font you have installed on your machine.
Additionally, you can select fonts using the cmd window's property dialog, illustrated in the screen shot below. Possibly you already have a font installed that you can use:
You've probably already done 1-3 since you can already type Sinhala, but you need a supporting font. Try the following:
Go to Region & language settings.
Add a language and select, Sinhala.
Click the language, Select Options, and you can select a keyboard type.
For Chinese, I was able to add a language pack, which gave me console fonts that support Chinese. I don't see that option for Sinhala. You may have to manually install a monospace font that support Sinhala. I couldn't find one, but if you do, this answer explains how to install it.
I have a wide-character file (with Hebrew text) that looks fine in Notepad (saved in "UTF-8 encoding"), reads fine in Notepad++, and when I copy-and-paste into MS Word it looks fine too. But when I open a "DOS box" (Windows console) and go: "type file.txt", it prints gibberish.And yes, I've done all the recommendations for Unicode on Windows console: I opened the console using "cmd /u", I changed the font to Lucida, and I've entered: "chcp 65001".
The problem is identical on a PC running Windows 7, and on another PC running Windows XP SP3.
The Font Courier New supports hebrew and can be added to the command prompt. The default fonts are consolas, lucida, raster, none of them support hebrew. So add Courier New to the command prompt.
It's a registry hack to do that
http://www.howtogeek.com/howto/windows-vista/stupid-geek-tricks-enable-more-fonts-for-the-windows-command-prompt/
http://www.techrepublic.com/blog/windows-and-office/quick-tip-add-fonts-to-the-command-prompt/
This is a good example of how to install fonts, but I should remove a lot of these entries, because most of them didn't get added to cmd because cmd didn't support them.
Lucida and Consolas are defaults.
Raster is a default not listed here maybe 'cos it's a TTF
Of all these I tried to add, only 3 added(are supported by cmd)
Courier New, DejaVu Sans Mono, Droid Sans Mono
DejaVu Sans Mono and Droid Sans Mono are downloadable, supported by cmd, might have some good unicode support/characters, but don't include Hebrew
I have
Consolas <-- default
Courier New <--- added
DejaVu Sans Mono <-- added
Droid Sans Mono <-- added
Lucida Console <-- default
Raster Fonts <-- default
Common hebrew fonts are Miriam and David, but they can't be added to the command prompt.
For the record, Babelmap can list all fonts on your system that support hebrew e.g. in babelmap- click fonts..font coverage, then enter 05D0(that's aleph). I think all these fonts exist on a default windows 7 installation
Aharoni, Arial, Courier New, David, FrankRuehl, Gisha, Levenim MT, Lucida Sans Unicode, Microsoft Sans Serif, Miriam, Miriam Fixed, Narkisim, Rod, Segoe WP, Tahoma, Times New Roman
But most or all of those fonts with hebrew aren't supported in the command prompt, except Courier New. In fact most fonts full stop aren't supported in the command prompt, not even "times new roman"(because "times new roman" is not mono-spaced / fixed width, and that's one of a number of criteria for it to be supported, other criteria seem to be more obscure).
So now you can have Courier New added and selected for use in the command prompt.
And so you can paste unicode characters onto cmd provided the selected font supports it.
To copy/paste, click the Copy button in charmap
Now it's in the clipboard
To paste it into the command prompt, in win7 paste into command prompt isn't ctrl-v. You right click and choose paste. (or if in quickedit mode then just rightclick)
That's the main thing.
Additionally
Often in windows one might use notepad and character map.. but one should be aware of some limitations with them.
Character map shows the first 65536 unicode characters when the font you selected supports it, and character map shows you the UTF-16 code. That's ok, you can still paste from character map into a cmd.exe window, but you should know that commands run in cmd.exe and pipes don't support utf-16. So you can use character map, find a character e.g. aleph 05d0, but it's worth looking up the character on http://www.fileformat.info/info/unicode/char/05d0/index.htm and seeing that while the utf-16 code is 05d0, the utf-8 code is d790. The xxd command and file command is useful for seeing the real contents of a file and determining the file's type.
Notepad is a bit limited when it comes to unicode or any character in the unicode character set whose UTF16 code is > FF. And cmd is a bit limited in regard to some commands like 'type', and in regard to pipes and redirection.
If using cmd.exe you really need pipes to work 'cos pipes are important..
Pipes are limited to the encodings that can be specified by the CHCP Command.
(Note that if CHCP tells you you are on a particular codepage, e.g. 850, it's telling you the input encoding. If you run the command chcp 850 it will change both the input and output encodings. Usually they are the same. It's simpler when they are the same. But if you used some other program to change the encoding of cmd eg the c# compiler has a switch that changes it, then it's best to change it with chcp so you know both encodings are set ).
There is a CHCP 1200 (UTF-16LE) and 1201(UTF-16BE) , but neither are supported, if you try it it will say invalid codepage (tested in win7). CHCP doesn't support UTF-16(it doesn't support UTF16LE or UTF16BE). There is CHCP 65001 (That's UTF-8 without BOM). And there is CHCP 862 (the old fashioned way as in MSDOS days way, of encoding Hebrew, that I mentioned)
The type command supports UTF16LE as does notepad(What notepad calls Unicode, is UTF-16 LE), But pipes and redirection don't support that. The type command also supports any codepage specified/supported by CHCP. So type supports 862 or 65001.
So you could use notepad save it as UTF8 (which is with BOM), then fiddle around to remove the BOM. (That's a bit overkill).. Or you could use notepad, save it as Unicode UTF 16LE.. But then you can't sue pipes.. (that's bad).. Easiest thing to do is use a text editor like notepad2 or notepad++, that supports UTF8 without BOM.
Or if doing everything from cmd you could use 862 or 65001. Though many text editors might not give good support of 862. So you might prefer 65001.
If you want to write any file in notepad and it has a character greater than what in UTF16 is referred to as \uFF, and you want to run commands in cmd.exe on that file, then some commands (e.g. the type command), will have problems if you don't take into account what is supported by what.
Notepad supports UTF-16BE, UTF-16LE and UTF-8 with BOM. That's not good. And no need to fiddle around with xxd and sed or other commands to remove the BOM. If you have any file with a so-called unicode character, a character outside of the regular ascii range. A character > UTF-16's \uFF, as shown by character map as being > \uFF, then use Notepad2 or notepad++
Type supports UTF16LE, and any codepage set by CHCP e.g. 65001 or 862.
Pipes and redirection go by whatever is set by CHCP.
Codepage 862 is old so Codepage 65001 is a good way to go.
xxd and file are useful for seeing how a file is encoded which can be helpful if you have issues. But not absolutely necessary.
So if you want to write a file for use in CMD, and it has some unicode characters, while thee are some commands like xxd and sed that could be used to remove a BOM, and other commands to do so. The easiest way to make such a file in a text editor is to use a text editor like notepad2 or notepad++ which supports UTF8 without BOM.
Getting hebrew displaying might be the most important thing to do first, as described above. And the next thing is being able to save files in a text editor that you can display with e.g. 'type'.
And if you ever want to copy from the command prompt, if not in quickedit mode, then right click then choose mark then select it then hit ENTER. And to paste right click and choose paste.
An further additional point is
Apparently there are bugs in chcp 65001 where some batch files won't run and maybe some C programs won't work either. How to use unicode characters in Windows command line? And i've even seen the c sharp compiler crash when cmd is in codepage 65001 (though one may blame the c sharp compiler, one could also blame 65001) Why is csc.exe crashing when I last left the output encoding as UTF8?
Note- an earlier revision of this answer had some command line examples but they were unnecessarily complex. I might at some point add some commands that demonstrate what I have been describing but it's fairly trivial.
/u is for UTF-16LE, not UTF-8. This is why saving the file as UTF-16LE (what Windows/Notepad misleadingly calls "Unicode") and running with /u works, in as much as it does.
UTF-8 should be achievable with chcp 65001, but there are some nasty low-level bugs in the Microsoft C Runtime for this code page, which makes some apps unreliable and some not run at all.
So yeah, I'm sorry, but UTF-8 is a second-class citizen under Windows. Anything that uses the 'ANSI' interfaces for IO, including anything that uses the C standard IO library, including the Command Prompt, won't be able to cope with it properly.
The only reliable way to get Unicode output in Command Prompt is to use the Windows-specific WriteConsoleW interface to push Unicode strings directly. Unfortunately as this is not available cross-platform, many tools won't use it.
In any case, even when you've got the encoding right, you still have to have a font in the Command Prompt that contains the characters you want. I believe this is why you still aren't getting Hebrew in the /u+UTF-16LE route.
Summary: Command Prompt + non-ASCII == almost certain fail. Give up and find some other interface you can use that supports Unicode better.
You should convert file.txt to UTF-16(Little Endian) before type file.txt
Reference: What encoding/code page is cmd.exe using?
I presume you mean "Lucida Console" when you say "Lucida".
Using the charmap application I couldn't find any Hebrew characters in the font. I don't know if the font was more capable in earlier versions of Windows, but in Windows 7 there appears to be nothing outside of the European characters.
My system also has Lucida Sans Typewriter which does include the Hebrew characters. Unfortunately the Cmd window doesn't show it as a choice. You need to edit the registry to open up more choices, as shown in this question on SuperUser: https://superuser.com/questions/5035/how-to-change-the-windows-console-font
P.S. I have been unable to verify this solution because Windows is being difficult. See https://superuser.com/questions/390933/how-to-add-a-font-to-the-cmd-window-choices-in-windows-7-64-bit
How to get an Hebrew enabled XP installation?
First of all, this is about an XP home SP3, Hebrew enabled. By that I mean it is a standard XP US installation, or so I believe, with the addition of Hebrew capabilities for keyboard and display. I believe every XP CD can install such a system. In particular, I believe the following is all that is needed for such a system:
Control panel -> Date, Time, Language and Regional Options -> Language and Regional Options -> in Language tab:
1) Click Details and add an Hebrew keyboard.
2) mark with a V the Install files for complex script and right-to-left languages (including Thai) option.
Control panel -> Date, Time, Language and Regional Options -> Language and Regional Options -> in Advanced tab:
Accept, mark with a V, 10004 (MAC - Arabic) and 10005 (Mac - Hebrew). Not sure if Arabic is a must have here.
Now to the cmd console
One has to explicitly add Courier New fonts to the console fonts registry, as described earlier. Otherwise, explicit Hebrew fonts will not be displayed.
Now when cmd console is opened, all there is to do in order to input Hebrew characters is to enable the Courier New fonts, and change the keyboard to an Hebrew mode. Having Windows scroll the languages it has for the keyboard is easy. Either repetitive pressing of left Alt combined with left shift keys, or with the mouse.
As an aside, a dir command will show file names that have Hebrew characters. However, one can't just issue a
dir file_name
and see the usual output if the file begins with a Hebrew letter. It must be
dir *file_name
I assume the asterisk character adds the BOM unicode character.
One can also open Notepad, input Hebrew characters, save the file as UTF8, and run the following in the console commands:
chcp 65001
type that_Notepad_file_I_saved
Saving the file as UTF8 is done on Notepad save screen.
I will be writing code that takes a screenshot, crops to a small section of the screen (predefined area of screen), and then extracts the text from that cropped image (via OCR tools), and then saves the resulting text to a file. I was wondering if there is software (preferably for Windows) that can do this, or at least parts of it. I am already looking into tesseract as an OCR tool. Anyone know of software that can take the screenshot, and possibly crop a predefined region of the image.
Thanks,
-Jason
I use Greenshot, which is a very awesome tool for screenshots and according to the FAQ it supports OCR (using MODI = Microsoft Office Document Imaging) as well. However, I never got it working on my Windows machine and used Tesseract instead (for Linux, with some scripting experience, this method should be possible as well):
Download Tesseract here for Ubuntu/Debian/Windows and install it.
Download and install Greenshot
Create a new windows batch script called "Greenshot_Tesseract_OCR.bat" using a text editor like notepad or Notepad++ - and save it at a location of your choice, e.g. "C:\Users\MyUser\Scripts\Greenshot_Tesseract_OCR.bat" - with the following content (depending on the installation location of tesseract):
ECHO OFF
set arg1=%1
"C:\Program Files\Tesseract-OCR\tesseract.exe" "%arg1%" "%arg1%"
type "%arg1%.txt" | clip
Right-click the Greenshot icon in the toolbar and click "configure external command"
Add a new command with a name like "Tesseract OCR to Clipboard", select the batch script you just created as a command and as argument, use the default "{0}". Then click OK twice.
You should now be able to copy the text of a screenshot into your clipboard, with a shortcut ("Print" key in my case) and 1-2 mouse clicks (depending on your Greenshot settings)!
You can try the following open-source programs:
Greenshot for screenshots and VietOCR (a GUI frontend for Tesseract) for OCR on screenshots.
Not sure if this appropriate to put as a question or not? It's sort of a scripting question I think. Just down vote me if not :p
Basically, what I'm looking for is a way to push a windows hotkey and have whatever text is in the clipboard be stripped of formatting. An example of what the macro could do:
I push (whatever hotkey combo here)
open notepad.exe
Paste to notepad from clipboard
Select all text in notepad
Copy/Cut all text from notepad
Close notepad
I'm just wondering if someone has done something like this before, or knows how it could be accomplished. I think this could be a huge time-saver for almost anyone. I find myself doing this all the time when cutting and pasting between different office applications, etc.
Have you heard of Puretext, it appears to do what you're looking for:
http://www.stevemiller.net/puretext/
Instead of emulating hotkeys to control Notepad, you can write code to implement what Notepad implements when it gets text from the clipboard: i.e. use the clipboard API to get the clipboard contents as unformatted text.
Try AutoHotKey to make a tiny and easy script to do what you want.
You will find a powerful windows interface macro programing tool.