MFC让程序运行时不在任务栏显示

在初始化时加上：

ModifyStyleEx(WS_EX_APPWINDOW,WS_EX_TOOLWINDOW);

WS_EX_APPWINDOW:Forces a top-level window onto the taskbar when the window is visible.
WS_EX_TOOLWINDOW:Creates a tool window, which is a window intended to be used as a floating toolbar. A tool window has a title bar that is shorter than a normal title bar, and the window title is drawn using a smaller font. A tool window does not appear in the task bar or in the window that appears when the user presses ALT+TAB.