#include <windows.h>
#include <iostream>
using namespace std;

int main()
{
    const char* output = "XXXXXX";
    const size_t len = strlen(output) + 1;
    HGLOBAL hMem =  GlobalAlloc(GMEM_MOVEABLE, len);
    memcpy(GlobalLock(hMem), output, len);
    GlobalUnlock(hMem);
    OpenClipboard(0);
    EmptyClipboard();
    SetClipboardData(CF_TEXT, hMem);
    CloseClipboard();
    MessageBox( 0, "License Key: XXXXXX", " This has automatically been copied to your clipboard", 0 );
    return 0;
}