#define WIN32_LEAN_AND_MEAN #include int WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, int); bool createMainWindow(HINSTANCE, int); LRESULT WINAPI WinProc(HWND, UINT, WPARAM, LPARAM); //전역변수 HINSTANCE hinst; //상수 const char CLASS_NAME[] = "WinMain"; const char APP_TITLE[] = "Hello World"; const int WINDOW_WIDTH = 400; const int WINDOW_HEIGHT = 400; int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE..