MFC 隐藏窗口

亲测能用

改变主窗体的创建方式

　将 C***App::InitInstance() 函数中的代码

CMFCApplication1Dlg dlg;
m_pMainWnd = &dlg;
INT_PTR nResponse = dlg.DoModal();

替换为

CMFCApplication1Dlg dlg;
m_pMainWnd = &dlg;
//INT_PTR nResponse = dlg.DoModal();
INT_PTR nResponse = dlg.Create(CMFCApplication1Dlg::IDD);
dlg.ShowWindow(SW_HIDE);
dlg.RunModalLoop();