I want to have a button in my WPF app that restarts the machine. This app is always running on Vista.
The fact that a quick search hasn't turned anything up makes me think this might be harder than I wish it was... any ideas? Thanks!
I want to have a button in my WPF app that restarts the machine. This app is always running on Vista.
The fact that a quick search hasn't turned anything up makes me think this might be harder than I wish it was... any ideas? Thanks!
Try this:
System.Diagnostics.Process.Start("shutdown.exe", "-r -t 0");
This starts Windows' inbuilt shutdown
tool, which can also shut down or logoff a remote or the local machine.
Here is the list of full options from ss64.com:
Syntax SHUTDOWN [logoff_option] [/m \\Computer] [options] logoff_option: /i Display the GUI (must be the first option) /l Log off. This cannot be used with /m or /d option /s Shutdown /r Shutdown and Restart /a Abort a system shutdown. (only during the time-out period) /p Turn off the local computer with no time-out or warning (only with /d) /h Hibernate the local computer (only with /f ) /e Document the reason for an unexpected shutdown of a computer Options: /m \\Computer : A remote computer to shutdown. /t:xxx : Time until system shutdown in seconds. The valid range is xxx=0-600 seconds. [default=30] /c "Msg" : An optional shutdown message [Max 127 chars] /f : Force running applications to close. This will not prompt for File-Save in any open applications. so will result in a loss of all unsaved data!!! /d u:xx:yy : List a USER reason code for the shutdown. /d P:xx:yy : List a PLANNED reason code for the shutdown. xx Specifies the major reason code (0-255) yy Specifies the minor reason code (0-65536)
You'll probably notice that I have used the Linux/UNIX style of passing command-line arguments (using the '-') sign. On Windows, the convention is using '/'. This doesn't matter - the program doesn't care.
An alternative would be to use WMI (i.e. the System.Management
namespace); Google brings up variations on this code --
ManagementClass W32_OS = new ManagementClass("Win32_OperatingSystem")
ManagementBaseObject inParams, outParams;
int result;
W32_OS.Scope.Options.EnablePrivileges = true;
foreach(ManagementObject obj in W32_OS.GetInstances())
{
inParams = obj.GetMethodParameters("Win32Shutdown");
inParams["Flags"] = 6; //ForcedReboot; -- fixed to restart rather than shutdown
inParams["Reserved"] = 0;
outParams = obj.InvokeMethod("Win32Shutdown", inParams, null)
result = Convert.ToInt32(outParams["returnValue"]);
if (result !=0) throw new Win32Exception(result);
}
You can use the ExitWindowsEx
API. From pinvoke.net
[Flags]
public enum ExitWindows : uint
{
// ONE of the following five:
LogOff = 0x00,
ShutDown = 0x01,
Reboot = 0x02,
PowerOff = 0x08,
RestartApps = 0x40,
// plus AT MOST ONE of the following two:
Force = 0x04,
ForceIfHung = 0x10,
}
[Flags]
enum ShutdownReason : uint
{
MajorApplication = 0x00040000,
MajorHardware = 0x00010000,
MajorLegacyApi = 0x00070000,
MajorOperatingSystem = 0x00020000,
MajorOther = 0x00000000,
MajorPower = 0x00060000,
MajorSoftware = 0x00030000,
MajorSystem = 0x00050000,
MinorBlueScreen = 0x0000000F,
MinorCordUnplugged = 0x0000000b,
MinorDisk = 0x00000007,
MinorEnvironment = 0x0000000c,
MinorHardwareDriver = 0x0000000d,
MinorHotfix = 0x00000011,
MinorHung = 0x00000005,
MinorInstallation = 0x00000002,
MinorMaintenance = 0x00000001,
MinorMMC = 0x00000019,
MinorNetworkConnectivity = 0x00000014,
MinorNetworkCard = 0x00000009,
MinorOther = 0x00000000,
MinorOtherDriver = 0x0000000e,
MinorPowerSupply = 0x0000000a,
MinorProcessor = 0x00000008,
MinorReconfig = 0x00000004,
MinorSecurity = 0x00000013,
MinorSecurityFix = 0x00000012,
MinorSecurityFixUninstall = 0x00000018,
MinorServicePack = 0x00000010,
MinorServicePackUninstall = 0x00000016,
MinorTermSrv = 0x00000020,
MinorUnstable = 0x00000006,
MinorUpgrade = 0x00000003,
MinorWMI = 0x00000015,
FlagUserDefined = 0x40000000,
FlagPlanned = 0x80000000
}
[DllImport("user32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool ExitWindowsEx(ExitWindows uFlags, ShutdownReason dwReason);
And to use it:
ExitWindowsEx(
ExitWindows.Reboot,
ShutdownReason.MajorOther & ShutdownReason.MinorOther
);