Famous Lecturer: Windows desktop recording and drawing

Why I build it? Every time I need to use those professional screen recording tools, I have to go through some very complex configurations and debugging. and there are always problems when I use them again after a period of time. So I want to make a tool that takes the desktop as the stage, starts with just one click, and immediately starts working. Features: 1) Simple, It's really very simple, with only a few buttons. 2) During the development process, I thought of many functions that would be used for recording screens and teaching, such as drawing boards, cameras, microphones, and speaker sound collection, all integrated together in those few buttons. 3) There is an excellent desktop annotation drawing board, all of which are operated using shortcut keys. Alt+1 wakes up and Esc exits. For more drawing boards, please refer to the software settings. This software is suitable for recording online courses and live teaching.