Windows Programming using C++

HK · #1 09-30-2006, 05:00 AM

I need to wirte a program that will display the degration of a battery as it's nature of reducing its effective capacity during continous charging and discharging cycles. I looked at Microsoft website and I was able to locate this API called "CallNtPowerInformation". This will be very helpful. However, I have not done any windows programming before. Can someone recommend a book on that. Do i need to need to create a Win32 app for that matter.

Thanks

tiger12506 · #2 06-05-2007, 09:38 PM

You might also see if GetSystemPowerStatus might be simpler...

If the API calls do not need a HWND parameter, then you can probably use them without creating any windows. (within reason...)

Code:

#include <windows>

int main() {
  SYSTEM_POWER_STATUS sps;
  GetSystemPowerStatus(&sps);
}

I say to use getsystempowerstatus because in order to use CallNtPowerInformation you have to include another header and a library file as dictated in the requirements section of this page ->
http://msdn2.microsoft.com/en-US/library/aa372675.aspx