create a console window in a win32 gui application

console.cpp

#include <fcntl.h>
#include <io.h>

//
class EnableConsole
{
	FILE * fp;
public:
	~EnableConsole()
	{
		Close();
	}

	//
	bool Open()
	{
		if (!AllocConsole())
		{
			return false;
		}

		freopen_s(&fp, "CONOUT$", "w", stdout);
		return true;
	}

	void Close()
	{
		fclose(fp);
		FreeConsole();
	}
};

create console.cpp

//
bool CreateConsole()
{
    if(!AllocConsole()) return false;
    HWND console_hwnd = GetConsoleWindow();
    //::SetWindowLong(console_hwnd, GWL_STYLE, ::GetWindowLong(console_hwnd, GWL_STYLE) & (~WS_SYSMENU));
    HMENU console_menu = ::GetSystemMenu(console_hwnd, FALSE);
    if (console_menu != NULL) DeleteMenu(console_menu, SC_CLOSE, MF_BYCOMMAND);
    SetWindowPos(console_hwnd, HWND_TOPMOST, 0, 0, 500, 300, SWP_SHOWWINDOW);
    SetConsoleTitleA("console");
    freopen_s(&_fp_console_out  , "CONOUT$" , "w" , stdout);
    freopen_s(&_fp_console_in   , "CONIN$"  , "r" , stdin);
    freopen_s(&_fp_console_err  , "CONOUT$" , "r" , stderr);
    setlocale(LC_ALL, "chs");

    return true;
}