Show shutdown dialog box from c#

Question

Is there a way to display the Windows shutdown dialog box from c#?

Shutdown dialog box

I found a command that I can use with System.Diagnostic.Process.Start

taskkill /im explorer.exe

But doesnt works on Windows 8

the dialog doesnt appears on windows 8, but works normally on windows 7 — user962284, Aug 20 '12 at 16:41
possible duplicate of [How to shutdown the computer from C#](http://stackoverflow.com/questions/102567/how-to-shutdown-the-computer-from-c-sharp) — JamieSee, Aug 20 '12 at 17:44

score 0 · Accepted Answer · answered Aug 20 '12 at 16:40

0

You could use shutdown.exe instead of trying to kill explorer.:

shutdown.exe /i /t 0

answered Aug 20 '12 at 16:40

Reed Copsey

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this dialog doesnt show the "switch user","sleep", "sign out" options – user962284 Aug 20 '12 at 16:43

score 0 · Answer 2 · answered Aug 20 '12 at 16:43

0

I haven't tried calling it from a C# process, but shutdown /i pulls a GUI on Windows 8 for me. Note that it isn't the same UI though.

answered Aug 20 '12 at 16:43

Godeke

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score 0 · Answer 3 · answered Jun 29 '23 at 21:17

I know it's an old question, but for those searching for an answer, at least in recent Windows systems (propably also in older ones) a good solution is to send a WM_CLOSE message to the window with classname "progman", this will trigger the default cancelable Windows shutdown dialog as shown in the screenshot above. In plain C this would be:

SendMessage(FindWindow(_T("progman"), NULL), WM_CLOSE, 0, 0);

Show shutdown dialog box from c#

3 Answers3