如何控制ATX底板让计算机关机呢？(100分)

你想达到什么目的呢?如果是想关机的话,调用95的
关机API不就可以了吗?

如果主板支持自动关机,95会替你关掉的.

95的关机API是什么呢？多多指教！

It's ExitWindowsEx:

BOOL ExitWindowsEx(
UINT uFlags, // shutdown operation
DWORD dwReserved // reserved
);

uFlags 值可为

EWX_FORCE Forces processes to terminate. Instead of bringing up the "application not responding" dialog box for the user, this value forces an application to terminate if it does not respond.
EWX_LOGOFF Shuts down all processes running in the security context of the process that called the ExitWindowsEx function. Then it logs the user off.
EWX_POWEROFF Shuts down the system and turns off the power. The application must have the SE_SHUTDOWN_NAME privilege (for more information, see the Remarks section) and the system must support the power-off feature.
EWX_REBOOT Shuts down the system and then restarts the system. The application must have the SE_SHUTDOWN_NAME privilege (for more information, see the Remarks section).
EWX_SHUTDOWN Shuts down the system to a point at which it is safe to turn off the power. All file buffers have been flushed to disk, and all running processes have stopped. The application must have the SE_SHUTDOWN_NAME privilege (for more information, see the Remarks section).


If the function succeeds, the return value is TRUE.
If the function fails, the return value is FALSE. To get extended error information, call GetLastError.

It's ExitWindowsEx:

BOOL ExitWindowsEx(
UINT uFlags, // shutdown operation
DWORD dwReserved // reserved
);

uFlags can be values below

EWX_FORCE Forces processes to terminate. Instead of bringing up the "application not responding" dialog box for the user, this value forces an application to terminate if it does not respond.
EWX_LOGOFF Shuts down all processes running in the security context of the process that called the ExitWindowsEx function. Then it logs the user off.
EWX_POWEROFF Shuts down the system and turns off the power. The application must have the SE_SHUTDOWN_NAME privilege (for more information, see the Remarks section) and the system must support the power-off feature.
EWX_REBOOT Shuts down the system and then restarts the system. The application must have the SE_SHUTDOWN_NAME privilege (for more information, see the Remarks section).
EWX_SHUTDOWN Shuts down the system to a point at which it is safe to turn off the power. All file buffers have been flushed to disk, and all running processes have stopped. The application must have the SE_SHUTDOWN_NAME privilege (for more information, see the Remarks section).


If the function succeeds, the return value is TRUE.
If the function fails, the return value is FALSE. To get extended error information, call GetLastError.

对不起,dwwang,这100分要被Sunset那去了。