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- 26 Apr 2023 07:51
- Forum: DOS Batch Forum
- Topic: 256 colors in virtual terminal escape sequence
- Replies: 41
- Views: 54110
Re: 256 colors in virtual terminal escape sequence
As said above, i assumed linear distances of the colors in RGB-space: The main advantage is, it is easy to compute, because color distances are just euclidean distances over the coordinates of the RGB colors. The main issue is, that human perception of color is everything but linear. Typically that ...
- 25 Apr 2023 18:19
- Forum: DOS Batch Forum
- Topic: 256 colors in virtual terminal escape sequence
- Replies: 41
- Views: 54110
Re: 256 colors in virtual terminal escape sequence
I've replaced the grayscale algorithm, the (unoptimized - but hopefully bug-free) result is the following mapping function: :toColorTable R G B return var :: part 1 (sloppy is sufficient) set /a "%4.r1= -(-(%1>>6)>>2), %4.g1= -(-(%2>>6)>>2), %4.b1= -(-(%3>>6)>>2), %4.isDarkGray=%4.r1*%4.g1*%4.b1" se...
- 24 Apr 2023 18:03
- Forum: DOS Batch Forum
- Topic: 256 colors in virtual terminal escape sequence
- Replies: 41
- Views: 54110
Re: 256 colors in virtual terminal escape sequence
Ok, i somehow missed the fact, that the difference between 0 and 95 isn't 40... :oops: . Your solution already finds the best color match; however this is my try: :: color function style set /A "%4=(((%1)-35)/40+((%1-48)>>8)-((%1-74)>>8))*36 + (((%2)-35)/40+((%2-48)>>8)-((%2-74)>>8))*6 + (((%3)-35)/...
- 23 Apr 2023 12:45
- Forum: DOS Batch Forum
- Topic: 256 colors in virtual terminal escape sequence
- Replies: 41
- Views: 54110
Re: 256 colors in virtual terminal escape sequence
I'm not sure what you mean, the above computations should return an index (i) for the indexed color (r_i, g_i, b_i) with the minimal error to the given color value (r, g, b) - at least for any system, that uses the above colour table predefined by Microsoft: - The formular for (2) should return the ...
- 23 Apr 2023 05:54
- Forum: DOS Batch Forum
- Topic: 256 colors in virtual terminal escape sequence
- Replies: 41
- Views: 54110
Re: 256 colors in virtual terminal escape sequence
The color map (at least on my pc) is piecewise linear. 1) Indices 0x00 - 0x0F contain the most non-linear part: ( 0, 0, 0), (128, 0, 0), ( 0, 128, 0), (128, 128, 0), ( 0, 0, 128), (128, 0, 128), ( 0, 128, 128), (192, 192, 192), (128, 128, 128), (255, 0, 0), ( 0, 255, 0), (255, 255, 0), ( 0, 0, 255),...
- 03 Apr 2023 16:39
- Forum: DOS Batch Forum
- Topic: Batch multiple UP calls from Main Batch not works!?
- Replies: 4
- Views: 3687
Re: Batch multiple UP calls from Main Batch not works!?
I assume the error is caused by using the wrong environment variable named "Aufruf:" instead of "Aufruf", like you did in "Linie2.bat":
penpen
Code: Select all
:: Linie2.bat
set /p Aufruf="Aufruf:"
:: versus
set /p Aufruf:="Aufruf:"
penpen
- 03 Apr 2023 16:13
- Forum: DOS Batch Forum
- Topic: Parallax background, and overlapping images properly
- Replies: 14
- Views: 18029
Re: Parallax background, and overlapping images properly
If i remember correct, then you can find those in the Templates for Parallax zip-file IcarusLives linked somewhere above, but under a diffferent name:
- "template1.ppm" is "cloud1.ppm"
- "template2.ppm" is "mountain1.ppm"
- "template3.ppm"should contain another mountain version.
penpen
- "template1.ppm" is "cloud1.ppm"
- "template2.ppm" is "mountain1.ppm"
- "template3.ppm"should contain another mountain version.
penpen
- 03 Apr 2023 15:35
- Forum: DOS Batch Forum
- Topic: How to check if a wired connection is present in a batch file?
- Replies: 2
- Views: 1640
Re: How to check if a wired connection is present in a batch file?
The following might help you:
Though i would add debug messages (using echo) and pauses, to see the program flow.
In case you don't have a visible console on login, you might redirect the echoes and avoid the pause commands instead.
penpen
Code: Select all
powershell -NoProfile -Command get-NetIPConfiguration
In case you don't have a visible console on login, you might redirect the echoes and avoid the pause commands instead.
penpen
- 21 Feb 2023 17:12
- Forum: DOS Batch Forum
- Topic: Delect Registry Key
- Replies: 5
- Views: 3338
Re: Delect Registry Key
I actually can't test it, but it might be the space characters, that break the value early, so you might encapsulate the value "c:\Program Files\Common Files\Corel\" in doublequotes.
penpen
penpen
- 18 Jan 2023 08:15
- Forum: DOS Batch Forum
- Topic: Exporting two keys from Registry residing in two different places on Windows 10
- Replies: 9
- Views: 17057
Re: Exporting two keys from Registry residing in two different places on Windows 10
What you see there is a character encoding issue. Somehow the resulting file was created with the byte order mark (bom) of 'UTF-16 LE' (which could happen for various reasons). Then the reg file was appended. Save the text into a file using encoding 'UTF-16 LE'. Then open it within a hex-editor. Del...
- 11 Dec 2022 06:22
- Forum: DOS Batch Forum
- Topic: This is really stupid but
- Replies: 1
- Views: 6470
Re: This is really stupid but
In case your computer runs on the "pro", "enterprise" or "educational" version of windows 10 (probably the same under Windows 11), then you may use "msg" or "net send ..." commands to send messages to computers in your local network: msg /SERVER:DestinationPC * /TIME:60 "Sample message to pc 'Destin...
- 04 Nov 2022 02:59
- Forum: DOS Batch Forum
- Topic: [Destructive, Use Caution] Copy tags and its child elements from specific XML schema
- Replies: 23
- Views: 11765
Re: Copy tags and its child elemnts from specific XML schema
Though i like Aacini's version, it is not completely safe (for example if you change the codepage of the source-xml).
Here is an example for how to read and process xml using jscript (in the hybrid "xslt.bat") in a safe way:
viewtopic.php?p=32941#p32941.
Here is an example for how to read and process xml using jscript (in the hybrid "xslt.bat") in a safe way:
viewtopic.php?p=32941#p32941.
- 29 Sep 2022 08:45
- Forum: DOS Batch Forum
- Topic: [CLARIFIED] Executing command via FOR results in not recognized
- Replies: 4
- Views: 2815
Re: Executing command via FOR results in not recognized
Is there information about why FOR treats space characters as commands instead of ignoring them? It deviates from default behavior imo. It is the default behaviour: If you escape a character (using the circumflex-character '^'), or add characters when the interpreter expects text starting with esca...
- 28 Sep 2022 07:17
- Forum: DOS Batch Forum
- Topic: [CLARIFIED] Executing command via FOR results in not recognized
- Replies: 4
- Views: 2815
Re: Executing command via FOR results in not recognized
That's not "nothing" - it's a space-character. Since the space-character is no valid command, the error message is correct. Typically space characters are treated as whitespace characters and will not end up beeing treated as a command. But you can force cmd to treat the space-character as a command...
- 19 Aug 2022 02:29
- Forum: DOS Batch Forum
- Topic: How do I check the length of a filename in batch script?
- Replies: 1
- Views: 2062
Re: How do I check the length of a filename in batch script?
You could store the filename into an environment variable and then check the length of that string using the :strlen-function.
penpen
penpen