To detect logoff [duplicate] - c#

This question already has answers here:
C# - How to detect a Windows shutdown/logoff and cancel that action (after asking the user)
(3 answers)
Closed 5 years ago.
Is it possible to detect when a PC is logging off. I need to develop an application which writes in a text document about the logoff time, before the PC gets logged off.

For .NET see this question: Is there a way in c# to detect a Windows shutdown/logoff and cancel that action (after asking the user)

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WPF inactivity and activity
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Shutdown WPF application after n seconds of inactivity
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Closed 26 days ago.
I’m developing a wpf application. I have a requirement, If application is idle (no mouse movement,key pressed etc) for specific seconds then it should redirect to first page . I have tried many solutions but none is working.
Please share the solution so that I could use it

Prevent Login on more than one device [duplicate]

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Firebase : Prevent same account on multiple devices
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Only one log in per user at the time in Firebase for android
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How to prevent simultaneous logins of the same user with Firebase?
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I'm developing an app in C#, in this program I want to prevent the user from being able to login on more than one device without first performing authorization on the old device or requesting a change of device via the registered email. I'm using Firebase as my database
So far I've seen something about DeviceID but I didn't get it right and I don't know if that's the way

wpf how to view desktop or go desktop by using user32 [duplicate]

This question already has answers here:
Programmatically show the desktop
(2 answers)
Simulating Key Press C#
(8 answers)
Closed 11 months ago.
hi i want to create application when i click the button it go to desktop, i mean when you press Win + D it go to desktop directly, i want to use user32 to be more practical, I want to use this method in the future too, but how?
i dont want to use this way, this road is a little weak :
II.Keyboard.KeyDown(VirtualKeyCode.LWIN);
II.Keyboard.KeyPress(VirtualKeyCode.VK_D);
II.Keyboard.KeyUp(VirtualKeyCode.LWIN);
thank you for answer

C# - How to hide window from “Applications” tab in task manager? [duplicate]

This question already has answers here:
How do I hide a process in Task Manager in C#?
(16 answers)
Is it possible to hide winform in TaskManager application tab?
(2 answers)
Closed 9 years ago.
I Want To Make A Program By C#(Console Or Windows Application).
I Want Hide My App from “Applications” tab in task manager
I Dont Want Do This By:
Form1.Text="";
I want User Show Nothing in Applications Tab In Task Manager.
Any Body Know What I Do This?
There is no way around to hide it from the task manager, but you could just disguise it by making it show up as "svchost.exe"
The programs are available in task manager to examine the processes running on your computer by user.

Is it possible to detect system wake up state from hibernate/sleep in a c# application? [duplicate]

This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
detect power state change
In my c# windows form application I want to reset a counter variable upon system wake up from hibernate/sleep. Is there any methods or events exists for detecting this?
The .NET Framework provides a PowerModeChanged event that occurs whenever there is a change in power status, such as when a user suspends or resumes the operating system.

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