求教，怎么作一个按钮，按下去能让windows关机和重起的啊？

[supergold]

如题

[zhucde]

自己建一个按钮,在其中加入如下语句:

ExitWindowsEx(EWX_SHUTDOWN, EWX_FORCE); //关机
ExitWindowsEx( EWX_REBOOT, EWX_FORCE); //重启

[supergold]

请问不管是哪个系统都行吗？如windows98，2000，xp和nt哪个系统可以用啊？

[supergold]

在什么系统下可以用这两个语句啊？是在98，2000，xp还是nt下面呢？

[zhucde]

2000下可以使用,
其它的你自己测试一下

[shootingstars]

ExitWindowsEx(EWX_SHUTDOWN, EWX_FORCE);
在win98下直接使用就可以了,在2000下需要修调整优先级。

[shootingstars]

在2000下关机，需要调整用户的等级：
HANDLE hToken;
TOKEN_PRIVILEGES tkp;

if( (AfxMessageBox("Do you want to CLOSE WINDOWS? \n Y--Yes N--No",MB_ICONEXCLAMATION|MB_YESNO|MB_APPLMODAL))==IDYES)
{

// Get a token for this process.

if (!OpenProcessToken(GetCurrentProcess(),
TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
AfxMessageBox("OpenProcessToken !");

// Get the LUID for the shutdown privilege.

LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,
&tkp.Privileges[0].Luid);

tkp.PrivilegeCount = 1; // one privilege to set
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;

// Get the shutdown privilege for this process.

AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,
(PTOKEN_PRIVILEGES)NULL, 0);

// Cannot test the return value of AdjustTokenPrivileges.

if (GetLastError() != ERROR_SUCCESS)
AfxMessageBox("AdjustTokenPrivileges !");

// Shut down the system and force all applications to close.
// you can restart the system too.
if (!ExitWindowsEx(EWX_POWEROFF|EWX_FORCE, 0))
AfxMessageBox("ExitWindowsEx !");
}

[喝醉的咖啡]

MSDN 的例子

BOOL MySystemShutdown()
{
HANDLE hToken;
TOKEN_PRIVILEGES tkp;

// Get a token for this process.

if (!OpenProcessToken(GetCurrentProcess(),
TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
return( FALSE );

// Get the LUID for the shutdown privilege.

LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,
&tkp.Privileges[0].Luid);

tkp.PrivilegeCount = 1; // one privilege to set
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;

// Get the shutdown privilege for this process.

AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,
(PTOKEN_PRIVILEGES)NULL, 0);

if (GetLastError() != ERROR_SUCCESS)
return FALSE;

// Shut down the system and force all applications to close.

if (!ExitWindowsEx(EWX_SHUTDOWN | EWX_FORCE, 0))
return FALSE;

return TRUE;
}

[cocosky]

下面这个函数在win 98/2000/xp下都可以用，我测试过的
希望能帮到你


void CMyDlg::shtdown()
{

OSVERSIONINFO osv;
osv.dwOSVersionInfoSize=sizeof OSVERSIONINFO;
GetVersionEx(&osv);

if(osv.dwPlatformId==VER_PLATFORM_WIN32_NT)
{
HANDLE hProcess,hToken;
TOKEN_PRIVILEGES Privileges;
LUID luid;
hProcess=GetCurrentProcess();
OpenProcessToken(hProcess,TOKEN_ADJUST_PRIVILEGES,&hToken);
Privileges.PrivilegeCount=1;
LookupPrivilegeValue(NULL,SE_SHUTDOWN_NAME,&luid);
Privileges.Privileges[0].Luid=luid;
Privileges.Privileges[0].Attributes=SE_PRIVILEGE_ENABLED;
AdjustTokenPrivileges(hToken,FALSE,&Privileges,NULL,NULL,NULL);
}
ExitWindowsEx(EWX_POWEROFF|EWX_SHUTDOWN|EWX_FORCE,0);

}