battery.cpp

#include <iostream>
#include <Windows.h>

void checkBattery() {
    SYSTEM_POWER_STATUS spsPwr;
    if (GetSystemPowerStatus(&spsPwr)) {
        if (spsPwr.ACLineStatus == 0 && spsPwr.BatteryFlag != 128) { // Laptop but not use AC
            goto jmp;
        }
        else if (spsPwr.ACLineStatus == 1 && spsPwr.BatteryFlag != 128) { // Laptop but use AC
            goto jmp;
        }
        else if (spsPwr.ACLineStatus == 255 || spsPwr.BatteryLifePercent > 100) {
            //some code
        }

        //some code


        //std::cout << "\nAC Status : " << static_cast<double>(spsPwr.ACLineStatus)
        //    << "\nBattery Status : " << static_cast<double>(spsPwr.BatteryFlag)
        //    << "\nBattery Life % : " << static_cast<double>(spsPwr.BatteryLifePercent)
        //    << std::endl;
    }
    else {
        //NOTHING FOUND!

        //some code
    }

jmp:
    //std::cout << "11111" << std::endl;
    while (spsPwr.BatteryLifePercent < 100) {
        GetSystemPowerStatus(&spsPwr);
        std::cout << "battery percent is low" << std::endl;
        Sleep(1000);
    }
}

int main()
{
    checkBattery();
    system("pause");
}