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It looks like the below question solves your issue. I tried it and it works for the combination of K + B + C key presses. You need to install keyboard module.

How to detect key presses?

Code that I tried (copied from the question above with minor updates)

The b'' isn't a "string prefix", instead it indicates that you are dealing with a sequence of bytes. Bytes can represent anything, including a text which is just a series of characters in some encoding, like UTF-8, ASCII, etc.

That's what .decode() does, it takes the sequence of bytes and interprets it as if it were a string of characters in that encoding and returns a string of those characters. Conversely, you could then encode the resulting string of characters into some other encoding by calling .encode() on the string and you'd get the sequence of bytes that represents that string in that encoding.

However, you can't just take any sequence of bytes and 'decode' it as any decoding - the bytes will have a certain encoding if they represent some string, but the example you give (of an executable) doesn't represent a string of characters at all and thus won't successfully decode into a string if you just call .decode() on it.

If you're lucky, the decoding works on the parts of the executable that are strings in that encoding, but even that's not guaranteed to work, as the strings will be surrounded by bytes that don't represent that encoding.

If you want to extract strings from an executable, you need to correctly identify what parts of the executable represent strings, extract those sequences of bytes and decode them with the correct encoding. How to do that will depend on the operating system the executable is for, whether it's 32-bit or 64-bit, etc.

Note: many programmers new to Python or coding in general get confused by the fact that Python (for the sake of convenience) shows you a bytes object as very similar to a string (it looks just like string with a b before it), this is even more confusing if it happens to be an encoding that's UTF or very similar, as the contents of the bytes object will even be readable then. But that doesn't mean the bytes objects actually is a string.

Check the pyautogui docs: https://pyautogui.readthedocs.io/en/latest/keyboard.html#the-press-keydown-and-keyup-functions

The keyUp and keyDown don't correspond to the Up key and the Down key, they correspond to a given key (which you have to supply as the argument) going up and down. For example, keyDown('space') holds the spacebar down and leaves it down until keyUp('space') is called.

What I think you want is to call the press function on the up and down keys, something like:

It could be a permission problem due to pyautogui running in more than one instance of the script and being unable to access the correct file.

In any case, you could work around the issue by reading the file directly, e.g:

Make sure you handle WM_DESTROY otherwise window won't close properly.

The radio buttons, all child dialog items, and all child windows should be created in WM_CREATE section of parent window. They need the HWND handle from parent window.

SetWindowLongPtr(.. GWLP_WNDPROC ...) is an old method used for subclassing. Your usage is incorrect. You don't need it anyway.

It's unclear what SendMessage(groupbox, NULL, NULL, TRUE); is supposed to do.

Just add the radio buttons, make sure the first radio button has an added WS_TABSTOP|WS_GROUP as shown below

Using 1 instead of True is slightly faster. Importing this way is slightly faster and calling without the '.' is also slightly faster. If still not fast enough I could implement multi-threading .

Logitech Mouse Buttons enumeration is non-trivial :-)

Use the global keyword to modify global variables.

In your case: