As the requirement is quite specific, the easiest route for you is probably to write a custom Autohotkey script for this, or modify one of the existing ones.
A program that may meet your requirements is called Snagit. It allows specific configurations to be created, allowing for nearly automatic capture and save of screen shots.
The hot-key is PrintScreen by default but can be changed to anything you wish. The workflow, based on your example, might be to configure a specific window area for capture, which covers ...
Would the TamperMonkey browser extension work for you?
Here's an example script I would write to fill the 'Mickey Mouse' fields on this page.
// @name New Userscript
// @namespace http://tampermonkey.net/
// @version 0.1
// @description try to take ...
After years of trying many, I have personally found Ditto to be the best all round Windows clipboard manager. I have been awarded a few answers for it on this site, which you can search for. Or Google for reviews, they will all agree.
By pure coincidence, the latest update, a month ago, now supports:
•Per-monitor dpi awareness
Consider CudaText editor, it has plugin CudaExt, which has such command: "Paste trimmed text".
You can find command in the Command Palette dialog. It works with one caret only.
It is also in the menu: Plugins / CudaExt / Insert / Paste trimmed text.
Ok, found "trim" macro in PhraseExpress does this trick :)
http://www.phraseexpress.com/ - freeware for personal use.
Available as installer as well as portable.
I've been using this for many typing and macro uses. So I incorporated this macro as well.
Very simple, create new phrase -> insert macro -> Text operations ->Trim ->Clipboard
Set a hotkey for ...
A popular code editor is Visual Studio Code. It is a free offering from the vomit company (I hate them too but VScode is a very nice app). There are 100's of extensions for many different programming languages and other mods to VScode. Don't confuse Visual Studio Code with Visual Studio.
An inexpensive app that I use occasionally is Pages. Its Macs ...
Ditto seems to be a cool software, as mentioned in the comments, by I'm looking for a more minimalist tool.
We just wrote this with a friend: CopyCopyPastePaste on Github, open-source.
It finally doesn't exactly do what I asked in the question, but something very similar.
What you are looking for is an HTML to markdown converter integrated with the clipboard handling on the browser or the system level. You can find some attempts to implement it by searching the Internet for "copy html as markdown" and "html to markdown clipboard". Bear in mind however that everything you find will be some sort of compromise since there is no ...
Pandoc - "a universal document converter" should be in just about everybody's tool kit.
Free, gratis & open source
Just about invaluable
With it you can convert from one format to another, including from online web pages to plain text.
For an example:
pandoc https://en.wikipedia.org/wiki/Pandoc -f html -t plain -o soq.txt
Is asking pandoc to ...
Selecting text is not really disabled in the website you linked, so there is nothing to allow. It's just an image with text.
Whay you are looking for is some OCR extension, to extract text from images, I have successfully used this one: https://chrome.google.com/webstore/detail/copyfish-%F0%9F%90%9F-free-ocr-soft/eenjdnjldapjajjofmldgmkjaienebbj/related?hl=...
Depending on the content, i.e. is Java required, etc., you could use something like the wxPython HTML2_Webview - with a couple of adjustments to the code in the demo from the Docs & Demo package you could make it full screen and modal, with no menu or your own menus, without a close button & you could trap key presses to disallow ctrl-P, ctrl-C & ...