C + + to determine whether a laptop computer

First we know that the difference between a desktop and a laptop is whether it has a power supply

If the API that reads the power information provides a return value, is it possible to conclude that it is a laptop or a desktop computer?

Let's look at an API

GetSystemPowerStatus function

We can generally know

This is a function of retrieving the power state of the system, which indicates whether the system is DC or AC, and the current load of the battery is emptied and so on.

Let me take a look at the parameters:

System_power_status

We can see batterflag this member, he loaded the battery status and included the logo

When the value is 128 and 255, the reaction is no voltage or read voltage,

So you can hit the following code:

#include <Windows.h>  #include <stdio.h>    int main ()  {      system_power_status A;      GetSystemPowerStatus (&a);        if (A.batteryflag = = && A.batteryflag = = 255)      {          printf ("desktop computer \ n");      }      else      {          printf ("Portable computer \ n");      }        return 0;  }

Operation Result:

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