[RESOLVED] How to disable mouse and keyboard for 10 seconds

[fa2020]

Hi,
I'm working on a splash screen which lasts about 10 seconds. I want to disable mouse and keyboard functions during this time (splash screen) and define a hotkey of Alt+Ctrl+2 to force the splash screen to stop (this hotkey is just used for killing the process).
What code in the windows form section can handle this task?

[TysonLPrice]

If you do a Google search on:

vb .net disable mouse and keyboard function

You will get pages of results with examples. And then wrap the example around a timer or when the splash screen unloads.

Save us some typing

[Peter Swinkels]

Hi,
I'm working on a splash screen which lasts about 10 seconds. I want to disable mouse and keyboard functions during this time (splash screen) and define a hotkey of Alt+Ctrl+2 to force the splash screen to stop (this hotkey is just used for killing the process).
What code in the windows form section can handle this task?

https://stackoverflow.com/questions/...vb-net-program?

[fa2020]

Unfortunately, I couldn't find any code for disabling mouse and keyboard globally.
Can anyone please guide me?

[Delaney]

if you want to define a hotkey (Alt+Ctrl+2), it is not a good idea to disable the keyboard...

you can use BlockInput : https://docs.microsoft.com/en-us/win...ser-blockinput

Declare Function BlockInput Lib "User32" (ByVal fBlockIt As Boolean) As Boolean


use in code : BlockInput(True)

[.paul.]

if you want to define a hotkey (Alt+Ctrl+2), it is not a good idea to disable the keyboard...

you can use BlockInput : https://docs.microsoft.com/en-us/win...ser-blockinput

Declare Function BlockInput Lib "User32" (ByVal fBlockIt As Boolean) As Boolean


use in code : BlockInput(True)

I don't remember the key combination, but there is a hotkey that ends BlockInput

[PlausiblyDamp]

Unfortunately, I couldn't find any code for disabling mouse and keyboard globally.
Can anyone please guide me?

That is probably because disabling the mouse and keyboard globally is a bad idea anyway, I would certainly be wary of running any application that disable mouse and keyboard to my entire system.

[Shaggy Hiker]

Why would you want to do this? Clearly, there's a problem, since you have a hotkey combination that won't work if the keyboard is disabled. Also, you guarantee that everybody will hate your program. I have two monitors on one computer and three on another. Do I really want a program that will stop me from doing anything on any monitor while it loads? No, I really do not.

So, aside from pissing off any users, what are you trying to prevent with this?

[fa2020]

I provided a test of my program. I used Visual Studio wallpaper as form background just for test. I wrote the code you provided for disabling mouse and keyboard globally, but nothing happens. Please look at VS 2019 file which I uploaded above.

[.paul.]

It doesn't disable anything globally. Just your app.

[fa2020]

But, I can still hover my mouse over the splash screen when I run it. Please have a look on my example file.
My goal is to disable Task Manager from killing the app. I want to disable Ctrl+Alt+Del function and not allow task manager to kill my app.

[.paul.]

Mousemove isn't user input. Your goal is not something we can or would help with. It could be used maliciously...

[Delaney]

I don't remember the key combination, but there is a hotkey that ends BlockInput

Yes Ctrl+Alt+Del unblocks

[fa2020]

Mousemove isn't user input. Your goal is not something we can or would help with. It could be used maliciously...

But, I just want to learn something. I'm in the first steps of VB.NET programming. I don't want to bother anyone.

[Delaney]

Mousemove isn't user input. Your goal is not something we can or would help with. It could be used maliciously...

It reminds me that's a few weeks ago we had exactly that at work. On of my colleague had a trouble with a subcontractor web page that pops up a false web page windows alert (you know the one with a nice phone number ) and blocked the keyboard and the mouse click . We manage to unblock the situation by unpluging the keyboard and repluging it... (by the way we had to warn the subcontractor that its web page has been infected)

[Delaney]

But, I just want to learn something. I'm in the first steps of VB.NET programming. I don't want to bother anyone.

Interesting, my first steps into VB.net had been programming games...

[jmcilhinney]

But, I just want to learn something. I'm in the first steps of VB.NET programming. I don't want to bother anyone.

Then try learning something useful instead. We all had to learn and I feel fairly safe in saying that none us did this.

[FunkyDexter]

Agree with the above. What you're asking to do is basically a violation of best practice for apps and would be wide open to abuse. Microsoft have gone out of there way to make sure you can't do what you're suggesting doing.

Why do you want to prevent your app from being closed while the splash screen is opening? There may be a better way of achieving your goal.