Keyboard press to display on screen Published February 9th, 2019 by Rohini Kumar Barla http://www.pcguide.com/intro/works/exampl-c.html https://computer.howstuffworks.com/keyboard5.htm The map for the keyboard called scan code. https://www.ibm.com/support/knowledgecenter/en/ssw_aix_71/com.ibm.aix.keyboardtechref/doc/kybdtech/Key.htm http://www.ee.bgu.ac.il/~microlab/MicroLab/Labs/ScanCodes.htm https://en.wikipedia.org/wiki/Scancode