ExDirectUI Menu FlagsEMNFExDirectUI Menu Flags EMNF Name Value Meaning EMNF_NOSHADOW 0x80000000 不显示菜单阴影 EMBF_WINDOWICON 0x80000000 显示窗口图标 EMBF_CENTEWINDOW 0x40000000 消息框居父窗口中间 EMBF_SHOWTIMEOUT 0x20000000 显示倒计时