取消屏保

Question

如何用代码在指定的时间点取消屏保??
那位有没有例子；

Answer 1

http://zjerryj.blogbus.com/logs/57826131.html

Answer 2

http://hi.baidu.com/areyan/blog/item/0c5ccc8f68dc11f7513d92fa.html

Answer 3

网上找了一点，希望对你有帮助
啟動屏保：[DllImport("user32.dll")]
        private static extern int SendMessageA(int hWnd, int Msg, int wParam, int lParam);        private const int HWND_BROADCAST = 0xffff;
        private const int WM_SYSCOMMAND = 0x112;
        private const int SC_SCREENSAVE = 0xf140;        public void screenSaveStart()
        {
            SendMessageA(HWND_BROADCAST, WM_SYSCOMMAND, SC_SCREENSAVE, 0);
        }
模擬鼠標動作退出屏保：[Flags]
        enum MouseEventFlag : uint
        {
            Move = 0x0001,
            LeftDown = 0x0002,
            LeftUp = 0x0004,
            RightDown = 0x0008,
            RightUp = 0x0010,
            MiddleDown = 0x0020,
            MiddleUp = 0x0040,
            XDown = 0x0080,
            XUp = 0x0100,
            Wheel = 0x0800,
            VirtualDesk = 0x4000,
            Absolute = 0x8000
        }[DllImport("user32.dll")]
        private static extern void mouse_event(MouseEventFlag flags, int dx, int dy, uint data, UIntPtr extraInfo);        /// <summary>
        /// 取消屏保
        /// </summary>
        public static void DisableScreenSave()
        {                        mouse_event(MouseEventFlag.LeftDown, 0, 0, 0, UIntPtr.Zero);        }

Answer 4

[DllImport("user32.dll")]user32.dll这个从那里来的啊??

Answer 5

user32.dll是操作系统自带关键dll的。描述： 
user32.dll是Windows用户界面相关应用程序接口，用于包括Windows处理，基本用户界面等特性。

Answer 6

const uint SPI_SETSCREENSAVEACTIVE = 0x0011;[System.Runtime.InteropServices.DllImport("User32")]
extern static bool SystemParametersInfoW(uint uiAction, uint uiParam, IntPtr pvParam, uint fWinIni);{
    SystemParametersInfoW(SPI_SETSCREENSAVEACTIVE, 0, IntPtr.Zero, 0);  //禁用
    SystemParametersInfoW(SPI_SETSCREENSAVEACTIVE, 1, IntPtr.Zero, 0);  //启用
}