窗体右上角的关闭按钮失效

//#include "stdafx.h"#define _WIN32_WINNT 0x0500#include <Windows.h>#include <stdio.h>#include <windows.h> extern "C" WINBASEAPI HWND WINAPI GetConsoleWindow ();void main(){ DeleteMenu(GetSystemMenu(GetConsoleWindow(), FALSE), SC_CLOSE, MF_BYCOMMAND); DrawMenuBa