What's the difference between Alt and AltGr on my keyboard? [duplicate]

Can anyone please tell me the difference between Alt and AltGr on my keyboard. I'm just curious to know the difference.

Thanks in Advance!!!

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1 Answer

Most programs use ALT to add different functionality to the keys pressed (ALT+F4 closes a program for example)

AltGr is mostly used to enter completely different characters into textboxes (altgr+c=© for example).

So ALT has more to do with functions while AltGr has to do with input.

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