Windows form c# application that freezes windows and disables all other running application

Emeka Nwaosa

I intend writing a Windows form c# application that freezes windows and disables all other running application in the background while executing for security reasons. Any Ideas on how I could go about this?

3 Replies

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Vulpes14y ago
One simple thing you could do is to set the PriorityClass property of your security process to ProcessPriorityClass.RealTime.

Threads of all other running processes (including operating system processes) will then be effectively locked out.

However, this may mean that your process won't be able to use the mouse and that disk writes may not flush properly.

Check these MSDN links for details:

http://msdn.microsoft.com/en-us/library/system.diagnostics.process.priorityclass.aspx

http://msdn.microsoft.com/en-us/library/system.diagnostics.processpriorityclass.aspx
Emeka Nwaosa14y ago
Thanks Suthish, thats a good idea. But how can I go about writing a code that locks the computer? Do you have sample codes or suggestions?
Suthish Nair14y ago
Why don't just write a code to lock the computer.