How to get Laptop battery level

[Dukc]

On Monday, 22 February 2021 at 20:59:01 UTC, Greatsam4sure wrote:
> Dlang is a system programming language. How do I access the 
> battery level of my system using code in dlang?

As a systems language, D could access the hardware interface 
directly, if you knew it and loaded your program as a kernel 
driver - if your operating system lets you do that.

Now, I don't think that was the most practical way to approach 
the problem :-). Instead, I recommend you use the SDL2 multimedia 
library to give you a more portable interface. Usage example in D 
here: 
https://github.com/Dgame/Dgame/blob/master/source/Dgame/System/Battery.d

Note that the D module I linked does not contain the machinery to 
initialize SDL2. This module seems to contain that:
https://github.com/Dgame/Dgame/blob/master/source/Dgame/Window/Window.d

Note that DGame seems to be currently unmaintained - it might 
have some bits that do not compile anymore. SDL2 is a commonly 
used library though - you should be able to find more examples 
about it if you need to.