I want to see CPU temperature and CPU load in Windows. I have to write it myself not using software like Core Temp. How can I access this information?
I read a similar question to mine, but there was no useful answer:(.
Recently I have started a similar project. I needed to read the cpu temperature and to control the fan in Linux and Windows. I don't know much about C++ and VS and DDK but I figured how to write a simple kernel driver and a simple program with winring0. In my laptop (and most other) the temperature and the fan is controled by the embedded controller. You have 2 choices, either you can write a kernel driver or you can use a library to access the embedded controller. It's because Windows protect the ec from being accessed with normal user rights. A good (and working) library is winring0 (WinRing0_1_3_1b). A useful program to check the ec and everything else in Windows is the RW tool.
Take a look at Getting CPU temp from MSDN forums, there are a few approaches.
As to the sane way, you can use Win32_TemperatureProbe class, that gets its intel from SMBIOS.
来源：https://stackoverflow.com/questions/8032807/c-code-for-cpu-load-and-cpu-temperature