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How do I access the system temperatures and fan speeds of a Mac using Objective-C? I have seen it done in applications like iStat, but I can not figure out how to do this. Does anyone know how?
You may also take a look at https://github.com/fmorrow/SMCWrapper - it's an object-oriented version of smc.c/smc.h. (The code of SMCWrapper is well commented)
Currently, it opens a connection using IOKit to AppleSMC IOService, and uses it to makes calls to the SMC chip. You can read keys to NSString, but setting key value is experimental at this time.
Take a look at https://github.com/lavoiesl/osx-cpu-temp/blob/master/smc.c for sample code that reads the temps from the SMC.
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For the last couple of weeks i'v been trying to replicate the method in which Id Technologies used to hide hidden messages inside their own songs. For reference: https://youtu.be/yzFit0nldf4 .
I'm not sure if this was made by solely a software or a very smart use of heavy musical instruments, but that's what im trying to find out.
Using softwares like coagula might do a similar thing, but the brilliancy was how the coded sound was hidden. If you attempt to hear rendedered output it would sound obvious and aweful...
So, my question is: does anyone know how they did it?
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How would i go about making a game engine from scratch, i know that this is a very hard task and the final engine will not be able to compete with an engine like Unreal or Unity.
I only plan to use this to get better at programming and if it helps i'm using C#.
Check: http://www.gamefromscratch.com/post/2013/06/14/A-tutorial-series-on-building-a-game-engine-from-scratch-almost-literally.aspx
You may also want to check more interactive tutorials such as those on
Udemy, which cost some money but offer a much more interactive environment. I'm sure you will be able to find a C# game engine guide on there.
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I'm looking for some guidance here. I primarily am a frontend developer. What I am trying to figure out is how an algorithm can be implemented to count kernels on an ear of corn.
From my initial research it seems there are a couple of different directions to go. Main ones I have seen are a SIRF type of implementation and others call for conversion to the HSV color space or LAB color space in order to then to normalizations and then counting.
For reference usually the corn that will be counted is "dent" corn. Here is an example:
This will be implemented in VB.net, but I can always translate the algorithm if needed.
Thank you for your help!
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I'd love to know/see some example code from the lowest level. By this I mean the code that for example, sets the voltage to the speakers, or something equivalent. I can't imagine how this would look/work.
How could a piece of code possibly set/change a physical quantity? I'm not looking for some driver code, but the actual code that makes hardware 'work', or does it work in a different way?
Math, Luck and Magic
Read up on Computer Organization and Computer Architecture and also Hardware Description Languages.
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I have a Mac App that uses the NSKeyedArchiver to save persistent data and it all works fine, but thinking ahead ideally I would like to be able to create a windows version. The current App is all in objective-c using cocoa as I did not think of portability when I first started writing it. I would be happy to make a windows version from scratch but obviously the two need to share data. I am a complete beginner when it come to cross-platform apps. What should I do?
Thanks in advance.
You either need to find (or write) code/a library to read NSKeyedArchiver plists on Windows, or you need to release an update to your Mac app that converts the keyed archives to something more generic, like a JSON- or XML-based format.