Windows 10: ASCII-Code on laptop

HelloIs there a way to activate the imbedded numeric keypad https://www.dummies.com/article/technology/computers/pcs/the-hidden-numeric-keypad-on-your-laptop-206927/ on my Surface laptop studio.The reason I ask this question is that I like to use the ASCII-Code ~ALT-Codes.I know I can buy an external Numpad but I would prefer to use my regular keyboard.out of my research, I found out that some laptops have a NUM-Lock key but the surface hasn't see pictureso my question is: is there a way to activate the imbedded numeric keypad or as an alternative how i can input ASCII-Codesand ple

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ALT key ASCII code

Hi everyone, I know that if I press any key on the keyboard it send an ASCII code to the computer, but there is keys that doesn't have code, like ALT key, so What happened if we press ALT key? I am working in a project that use an ASCII code and need to
know what ALT key do exactlly, thanks

 

ALT key ASCII code

There is no ASCII character associated with the Alt key. Search for information on keyboard scan codes. The Alt key modifies the scan code before any mapping of scan codes to character codes is done.

Keith

 

Typing an ASCII Code in Notepad

I was working on a draft in notepad. I was trying to input ñ (alt+164). It will work at first and when I type it again, a appears; then suddenly, I can no longer type any ASCII code. Thank you.