我的系统为WIN XP+SP2，我用下面的API为何出错，说找不到DLL的入口？

[dazhu2]

[DllImport("user32.dll", EntryPoint="ExitWindows")]
public static extern int ExitWindows (
int dwReserved,
int uReturnCode
);


private void button1_Click(object sender, System.EventArgs e)
{
ExitWindows(0,0);
}

[dazhu2]

up

[AhBian]

[DllImport("user32.dll", EntryPoint="ExitWindowsEx")]
public static extern int ExitWindows (
int dwReserved,
int uReturnCode
);

或者:

[DllImport("user32.dll")]
public static extern int ExitWindowsEx (
int dwReserved,
int uReturnCode
);

[dazhu2]

to AhBian(阿扁) :
我为何关不了机呀？应用什么参数？

[dazhu2]

我用任何参数都是注销!

[dazhu2]

up

[AhBian]

uFlags

4 = Force any applications to quit instead of prompting the user to close them.

0 = Log off the network.

8 = Shut down the system and, if possible, turn the computer off.

2 = Perform a full reboot of the system.

1 = Shut down computer.

dwReason

This is the System Shutdown Reason Code. If your application will run in an enterprise environment, set this to the appropriate value found in MSDN or talk to your/customer's IT department - they may have custom codes defined. If you don't care about this just set this = 0



Sample Code:
class Class1
{
[DllImport("user32.dll")]
static extern bool ExitWindowsEx(uint uFlags, uint dwReason);


[STAThread]
static void Main(string[] args)
{
ExitWindowsEx(0, 0); //this will cause the computer to logoff.
ExitWindowsEx(1, 0); //And this will shutdown your computer.
}
}

[AhBian]

我从未用过这个 API,
关机可能与权限有关。

[BearRui]

[DllImport("user32.dll")]
private static extern int ExitWindows (int dwReserved, int uReturnCode);