win32程序启用控制台

 #include <cstdio>
 #define USE_WIN32_CONSOLE

 int APIENTRY wWinMain(_In_ HINSTANCE hInstance,
                      _In_opt_ HINSTANCE hPrevInstance,
                      _In_ LPWSTR    lpCmdLine,
                      _In_ int       nCmdShow)
 {
     UNREFERENCED_PARAMETER(hPrevInstance);
     UNREFERENCED_PARAMETER(lpCmdLine);

 #ifdef USE_WIN32_CONSOLE
     AllocConsole();
     freopen("CONIN$", "r", stdin);
     freopen("CONOUT$", "w", stdout);
     freopen("CONOUT$", "w", stderr);
 #endif

     // TODO: Place code here.

     // Initialize global strings
     LoadStringW(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
     LoadStringW(hInstance, IDC_WIN32TEST, szWindowClass, MAX_LOADSTRING);
     MyRegisterClass(hInstance);

     // Perform application initialization:
     if (!InitInstance (hInstance, nCmdShow))
     {
         return FALSE;
     }

     HACCEL hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_WIN32TEST));

     MSG msg;

     // Main message loop:
     while (GetMessage(&msg, nullptr, , ))
     {
         if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
         {
             TranslateMessage(&msg);
             DispatchMessage(&msg);
         }
     }

 #ifdef USE_WIN32_CONSOLE
     FreeConsole();
 #endif

     return (int) msg.wParam;
 }

主要是12-17行,46-48行的部分.