shutdown | 易学教程

Should I process WM_ENDSESSION, WM_QUERYENDSESSION, both or neither?

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问题 If a system is trying to shut down, an app can block this shutdown by overriding OnQueryEndSession() and returning FALSE . Surely that means WM_ENDSESSION is the only definitive message to respond to regarding shutdown. On the other hand, the top answer to this question quotes no less than Raymond Chen as saying that responding to WM_ENDSESSION is essentially pointless. So this is confusing. Is there some kind of "best practice" principles to apply in deciding which of these messages (if any)

Linux第三次

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[ root@localhost ~ ] # ls dos hello . c [ root@localhost ~ ] # mkdir vitest [ root@localhost ~ ] # ls dos hello . c vitest [ root@localhost ~ ] # mkdir ~ / vitest / inittab [ root@localhost ~ ] # ls dos hello . c vitest [ root@localhost ~ ] # cd vitest [ root@localhost vitest ] # ls inittab vi inittab # process == program to run # #Startup the system : : sysinit : / bin / mount - t proc proc / proc : : sysinit : bin / mount - o remount , rw / # now run any rc scripts : : sysinit : / etc / init . d / rcs # # Stuff to do before rebooting : : shutdown : / etc / init . d / rck : : shutdown : /

Prevent windows Shutdown with CANCEL option C#

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问题 I'm trying to include in my Windows Form App a way that when user tries to shutdown windows it opens a dialog box with CANCEL option....that office classic one. In other topics, people describes how to prevent windows shutdown. They use a dialog box for this. It helps but if the user immediately clicks in any option in this box, windows closes the application. You can understand what I'm meaning, doing the following test: In windows Vista or 7 Open Paint, Word or any office soft and begin

PowerShell window preventing shutdown

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问题 If I have a PowerShell window (at the PowerShell command prompt) on display it prevents the computer shutting down. I.e. if I open a PowerShell window and then try to shutdown the server, I get the End Program popup saying Windows cannot end this program. I get the same result if I start PowerShell from the start menu, from a cmd prompt and from a shortcut with -NoExit specified. How can I get shutdown to automatically close a PowerShell window (if it is at the PowerShell prompt) in the same

How do I detect shutdown/reboot from linux app [duplicate]

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问题 This question already has answers here : how to detect Linux shutdown/reboot (2 answers) Closed 6 months ago . I have an application written in C which runs as a daemon and needs to send something through RS232 when system is in shutdown or reboot state, and it needs to distinguish between these two. So my idea is: In my application script /etc/init.d/my_app in "stop" case of my script, I will run /sbin/runlevel command to get current runlevel: 0 - shutdown state 6 - reboot state then I will

Does android mobile has any error log file to debug cause for auto switch off?

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问题 Sometimes we see the device restarts automatically, while few other times I had found it switching off after long time, even battery was not low. So if we want to trace back of what actually has caused this, does we have any log file in device memory which has the cause of shutdown or restart ? Like we get the dump for the other O.S. for any errors occured causing it to restart/shutdown in specific error log file. Similarly does android has such ? It may be anywhere , even in internal memory,

Using Ubuntu 11.04, I can't shut down rails server using CTRL-C

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问题 For some reason, when I type "rails s", sometimes I can't shut the server down using CTRL-C. It's using Web brick, the default. Sometimes it works for hours. Other times it doesn't work at all and I must constantly kill the process if I want to shut down the server. Is this a known problem? How can I fix it? If you need to know more info, please just ask and I'll tell you what I can. Because I don't know what is causing it, I am at a loss as to what info to provide you with. EDIT: I am adding

Why do I need to call a close() or shutdown() method?

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问题 I'm new in Java with some background in C++ in my High School years. Now I'm trying to make something and I chose Java as the programming language. I've done my homework and look a lot about "destructors" for Java, finalize() method, and close() or shutdown() methods. But still I think I don't have the idea of how this should work (more info below of course) OK, the concrete question would be why do I need to call close() or shutdown() methods? In my particular case I'm working with a class

Why do I need to call a close() or shutdown() method?

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Jetty throws NoClassDefFoundError: org/eclipse/jetty/util/FutureCallback on shutdown

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问题 Our maven build throws at the end of the build of the shutdown of jetty a NoClassDefFoundError that I do not understand. Does anyone have an idea where this is comming from and how to fix it? Here is are the dependencies from the pom file: <dependencies> <dependency> <groupId>com.restfuse</groupId> <artifactId>com.eclipsesource.restfuse</artifactId> <version>1.0.0</version> </dependency> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.4</version> <