Detect Windows Architecture [C++] GetEnvironmentVariable

// C++

#include <iostream>

#include <cstdlib>

#include <windows.h>

#include <tchar.h>

using namespace std;

int _tmain(int argc, TCHAR *argv[])

{

const DWORD buffSize = 10;

LPTSTR buffer1 = new TCHAR[buffSize];

LPTSTR buffer2 = new TCHAR[buffSize];

if (GetEnvironmentVariable(TEXT("PROCESSOR_ARCHITECTURE"), buffer1, buffSize) != 0)

cout << TEXT("PROCESSOR_ARCHITECTURE : ") << buffer1 << endl;

if (GetEnvironmentVariable("PROCESSOR_ARCHITEW6432", buffer2, buffSize) != 0)

cout << TEXT("PROCESSOR_ARCHITEW6432 : ") << buffer2 << endl;

return EXIT_SUCCESS;

}

/* Output

PROCESSOR_ARCHITECTURE : x86

PROCESSOR_ARCHITEW6432 : AMD64

*/