This program, by substituting values in the memory of the notebook process, plays media files in it.
Example:
NotepadMediaPlayer.exe -n C:/Windows/notepad.exe -v C:/nyan_cat.gif -w 80 -h 30 -f 10 -s
P.S. Sometimes the program may not start, just restart it :D
To compile the program, you need to install the OpenCV library. Testing was performed on version 4.5.2
The main part of the code to display the characters in the notebook was taken from this repository.