Disable Window keys ALT+TAB, CTRL+ALT+DEL

Hello i am developing an application in which i need to catch the ALT+TAB and CTRLALT+DEL key events and handle it in my own way.
The default action of showing the next window or the task manager should not take place.
In the event handler i have given
eventName.consume();
also.But the default handling is also done.
How do i stop the default action from being done?

Windows will not allow any application to catch the CTRL+ALT+DEL keystroke. In Windows NT-kernel OSes, this keystroke brings up a menu which, among other things, allows the user to change his or her password. If an application could intercept CTRL+ALT+DEL, it could present itself in such a way as to look just like that dialog. Then, if a user typed his or her password into that dialog, the program could log or transmit that password plaintext, severely violating security.
All sorts of exploits like that would be possible. This is why you can't block system keystrokes.
Is there any particular reason you need to override this behavior? Perhaps we can help you find another solution to whatever problem made you decide you wanted to catch those keystrokes in the first place.

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Disabling windows key on keyboard?

any idea on how to disable the windows key using java code?

Came across a relevant article looking for something else:
[Disable Windows key registry policy setting|http://msdn.microsoft.com/en-us/library/aa460734.aspx]
[Access registry from Java|http://lenkite.blogspot.com/2008/05/access-windows-registry-using-java.html]
- you need to be an admin
- most of the settings are better accomplished by removing the parts from your OS image
- if you're not creating an embedded system which sole purpose is to run your program, you've no business messing with the Windows key policy settings.
(not having in Windows XP box to play with at home, can't verify if it works)

Mouse deselects active window, wont respond until ctrl alt del

The problem that I'm having is that my mouse sporadically "unfocuses" my current active window when I click, and will not interact with anything onscreen. The computer isn't freezing, you can still move the mouse but can’t click on anything. You also can’t click and drag. Also the mouse looks like a standard pointer, not the spinning blue circle. There is no visible active window, it's as if there is an invisible window on top of everything else, that stops the clicks from going through. When this happens, mousing over things doesn't provoke a response; For instance - Mousing over a link in a webpage doesn't turn the cursor into a hand signifying a clickable link. The keyboard still responds perfectly, and all programs continue running normally. This occurs at any given time, while on or offline.
When this problem happens, I can press ctrl-alt-delete, and click once anywhere on that blue screen to make the mouse begin to respond again. Then I click cancel and go back to whatever I was doing for anywhere between 5 seconds and 30 minutes when the problem happens again
This computer is virus free, and I've seen others have this problem on a fresh install of Windows Vista. I have tried this mouse in other computers, and the problem doesn't happen. I've also tried other mice in this computer and it still occurs. I've been told by other who have the same problem that it "Happens with touchpads, pointing stick, wireless mouse, wired USB mouse", and possibly others as well. I'm running an OEM Windows Vista Home Premium, fully updated, MSI K9N4 SLI Motherboard, AMD 4600+ processor, Razor Deathadder mouse, Logitech G15 Keyboard, ATI Radeon 4870 HD Graphics card, and 4GB Mushkin ddr2 sdram. It also occured with 2gb of corsair ram and an 8800gts graphics card.
If you have any questions concerning hardware/software/what i had for breakfast, I'll gladly answer.
If you have any ideas, I will pretty much try anything at this point.
As of now, I have tried every idea at this website - http://blog.bidenpc.com/267/vista-mouse-cant-click/ - to no avail.
Thank you for your time, please help if you can.

Thanks for this post! This is exactly what cause the issue. I tried to press the forward button on the mouse only to find out it was stuck :D
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[SOLVED] openbox window borders and alt tab

There are two (atleast) things i'd like to fix in openbox (and lxde). I haven't found any info on it.
1) Window borders are only one pixel. It's hard to resize windows and very hard with touchpad. I have room for it on a 1400x1050 resolution. On kde I have 6 pixels. How can I widen the borders?
2) Alt + tab cycles through the windows on the current desktop only. I would like it to cycle through all windows on all desktops. I know I can middleclick on the background, but I'd like to alt tab too. How do I do that?
Last edited by kanonmat (2009-04-11 21:49:01)

For 2 : Add this to your keybindings in rc.xml
<keybind key="W-Tab">
<action name="NextWindow">
<allDesktops>yes</allDesktops>
</action>
</keybind>
<keybind key="W-S-Tab">
<action name="PreviousWindow">
<allDesktops>yes</allDesktops>
</action>
</keybind>
This will use the Super+Tab and Super+Shift+Tab to move between windows across all desktops. You can still use Alt+Tab and Alt+Shift+Tab to move between windows within the same desktop
Last edited by Inxsible (2009-04-11 19:29:43)

Alt-tab doesn't work properly

Alt-tab is supposed to display the icons for the applications that are running. If I keep the alt key depressed, the icons are supposed to stay visible. But on my system, they are only visible for a couple of seconds, and then the window for the icon I
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When I use Alt/Tab (press alt/tab and release tab but hold alt) I get different results at different times. For example, this morning I used Alt/Tab and it displayed the list of thumbnails on top of their respective windows. That worked fine several times.
But a few minuets later it changed and displays the list of thumbnails behind the windows (i.e., you can't see the list).
I know this can be turned off by disabling Aero Peek but that will disable other useful features too. I am using Windows 7 on a DELL E6440 but this problem exists on all computers I have ever used, including Levento.
Win/Pause just brings up Control Panel/System. Win-F11 does nothing (in Firefox).
Note that I did not load or run any programs between the time it was working and the time it quit working. I was only switching between applications.
This is clearly a Windows 7 bug. I don't see the problem on Windows 8 (but I don't use that much).

[BIOS Bug] Enabling Fn/Ctrl swap breaks [Ctrl]-[Alt]-[Up]

Hello all!
I'm very used to the standard keyboard layout, where the ctrl key is on the very left. Therefore I enabled the Swap Fn/Ctrl key option in the BIOS of my Lenovo Edge 11 AMD (2545A12, Bios 1.08).
Unfortunately this has the effect, that a very specific key combination is no longer working: Ctrl+Alt+Up
Ctrl-Alt-Down/Left/Right keep working as ususal. The problem does not happen with disabled key swap option.
This clearly seems to be a bug to me. Any hints on how to receive a fix?
Thanks & Regards
- Ben

I doubt this is a software/Linux problem. Same effect here under Fedora 15/Gnome: There this key combination is the essential as the desktop is only vertically oriented.
Can anybody try to assign this key combination in Windows, enable Fn/Ctrl swap and report if he shares the problem there?

Ctrl+Alt+Delete on Java Forte

Please help, I Installed Java forte on top of Window 2000, I compiled my java and take a break by locking out the window (Ctrl+Alt+Delete) and the whole system is scratched. Any clues???? Thanks

Forgive me for replying to such an old posting, but it is one of the first results in google for "bootcamp ctrl alt delete"
If you're stuck at the windows login screen, press the Apple key + U then activate the onscreen keyboard to click Ctrl Alt Delete.
Once you've done that, besure to install the Bootcamp software in Windows. After that, Ctrl / Alt / delete (backspace) will work.

CTRL + ALT doesn't resize my brush anymore !!!! :'(

Hi everyone !
I'm using OSX 10.8.2 and Photoshop CS6, with an intuos 4, and 10 minutes ago the function CTRL+ALT+left or right on my intuos was visually changing the size of my brush, and now, when I use the same combination, it just drags my photoshop window and move it from left to right...!
I can't remember changing anything in the options of my intuos or Photoshop, and make the settings back to defaults doesn't change my problem.
If you have any answer, clue, tip, or anything helpfull, I'd be sooooooo glad !!
thanks !!

Boilerplate-text:
Are Photoshop and OS fully updated and have you performed the usual trouble-shooting routines (trashing prefs by keeping command-alt-shift/ctrl-alt-shift pressed while starting Photoshop after making sure all customized presets like Actions, Patterns, Brushes etc. have been saved and making a note of the Preferences you’ve changed, 3rd party plug-ins deactivation, system maintenance, cleaning caches, font validation, etc.)?

CS5.5: keyboard shortcuts: CTRL+ALT and problem with ALT+CTRL

The problem concerns the CS5.5 version of InDesign on Win7. Incorrect work-based keyboard shortcuts: CTRL+ALT+?? (system shortcuts and self defined, eg paragraph style). We have to remember to press the keys in order: CTRL+ALT+??. Ordering: ALT+CTRL+?? (vice versa to CTRL+ALT) will freeze the program on the selection on drop down menu (File, Edit etc.) and inability to perform any other function with the keyboard. This is a bug, or might be changed?
If we use shortcuts eg: SHIFT+CTRL+ALT+??, we must remember to first release the ALT key and then the rest. Otherwise, InDesign hang in drop down menu...

Welcome to the forum!
It sounds like you've inadvertently turned on the Sticky Keys accessibility feature. Since you didn't mention which operating system you're using, I can't tell you how to turn it off. Trying searching for Sticky Keys in Help in the Start button menu.
Hope this helps!
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Jane
2015 X1 Carbon, ThinkPad Slate, T410s, X301, X200 Tablet, T60p, HP TouchPad, iPad Air 2, iPhone 5S, IdeaTab A2107A, Yoga Tablet, Yoga 3 Pro
I am not a Lenovo Employee.
I AM one of those crazy ThinkPad zealots!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"!

PulseAudio stops sounding when I switch to other display (Ctrl+Alt+F1)

Hello.
When I am playing any sound and I switch to a display (Ctrl+Alt+F1, Ctrl+Alt+F2...) where I have not loged in or a am not loged with my default user account, the sound stops, and when I switch back, I continues sounding.
Anyone have an idea of what could be causing this?
Thanks.

Thanks for the reply.
Is there a way to change that behavior?
Edit: After killing console-kit-daemon, sound works on all displays, but I think that it is not the best solution.
Last edited by eduardosm (2011-12-02 21:29:57)

How can I disable ctrl+alt+del and other keys

I need help on how to disable some keyboard key combinations (ctrl+alt+del)in particular. Disabling other keyboard keys is equally welcomed.
Also how can I disable Windows 2000/XP's Task Manager from exposing my running program to be terminated.
Thanks

I need help on how to disable some keyboard key
combinations (ctrl+alt+del)in particular. Disabling
other keyboard keys is equally welcomed.This is not a java question per se. I would recommend searching on MSDN or some such site to figure this out.
Also how can I disable Windows 2000/XP's Task Manager
from exposing my running program to be terminated.This can be done by limiting the permissions of the Windows user that you would like to prevent from doing this. The user manager lets you do this.
>
ThanksNo problem.

How to disabled ctrl+alt+del on window platform

Dear all,
I am a java developer, I'm from cambodia, I don't know how to disabled ctrl+alt+dle on windows platform. can any one helps me to solve this problem. I hope all of you can do it. thanks for your kindness.
Somongkol.chim

There used to be a win32 call for it, so if you want it you'll need to go back to C/C++ and do JNI, provided it is still in the API.

Tried installing Windows Vista, cancelled install and now it won't boot from the OEM Vista DVD, all i get is BOOTMGR is missing error... Ctrl Alt Del to restart and when i turn the computer on i get a blank screen and pressing C is not working to boot....

Topic says it all...
My friend started a installation of Windows Vista, but pulled out after deleting all partitions...
So now i power it on, get a blank screen (seems a bit gray because of backlighting, should show the apple logo right?)...
Then after like 15-20sec it will throw out a:
BOOTMGR is missing
Press Ctrl+Alt+Del to restart
I have a OEM Windows Vista DVD in the drive, and i know... Windows 7 is better... but i'm not that fond of stealing software from Microsoft and i have 10 licenses for Vista...
I have tried pressing C while booting up but it doesn't work...
Does anyone here have a magic soloution for me, and no i will not install MacOS on it !!!

Deleting Boot Camp partitions the conventional way will not work . You must use the Boot Camp Assistant to remove a Boot Camp partition. Here is a link to the guide.
http://manuals.info.apple.com/en_US/Boot_Camp_Install-Setup_10.6.pdf
The way to restart is to hold down the option/alt key during startup* and then selecting the Mac OS. If you have a valid Boot Camp install of Windows it would show up during this type of start up.
* hold down immediately after pressing the power button and until the OS choice screen appears.
To summarize.
1 Use the above method to boot into Mac OS.
2 Download the instructions and read them.
3 Use Boot Camp Assistant to remove the partition.
4 Pick your friends more carefully.

Revolve 810 G1 Unlock Computer when in Tablet Mode. Press CTRL-ALT-DEL or Windows Security Button

1. I have an Revolve 810 G1
Running Windows 7 Pro (64 Bit).
When I change the screen to Tablet Mode
(Folding tablet over keyboard and using as tablet).
I lock my computer.
2. What to know how to unlock without having to Open back up and use the CTL-Alt-DEL keys.
When Locked screen shows: Press CTRL-ALT-DEL or use the Windows Security Button to unlock this computer.
I would like to use the Windows Button on the bottom of the screen
(One Used in Windows 8 to change between Desktop and Metro) to Unlock screen And bring up on screen keyboard to put in my password.
This is probably how it should work, but it does not work.
Even bringing up the onscreen keyboard via the blue power button On the screen to Ease Of Access does not work.
The CLT-ALT-DEL on the on screen keyboard will not unlock the screen.
P.S.
Where is that Windows Security Button when you need it?
Thanks,
Rog

If you are using Windows 7 (not Windows 8), you should be able to touch the Ease of Access button at the lower left of the screen, then select Type without the keyboard (On-screen keyboard). When the on-screen keyboard pops-up, press CTRL, then ALT, then DEL. You should get a password prompt; the on-screen keyboard will stay visible unless and until you close it.
Although I am an HP employee, I am speaking for myself and not for HP.
Please click the little thumbs-up dealybopper to the lower right if my reply was helpful to you. Please mark Accept As Solution if it solves your problem. This will help others, too!

When I close firefox with ctrl-alt-delete, I want to start over on Firefox, I usually do this when too many tabs and windows are open. However, Firefox always restores the tabs and windows I previously had. How can I stop that from happening?

This happens when FireFox is not responding, and I want to close firefox with ctrl-alt-delete. Too many tabs can make Firefox crash. That is why I want to use ctrl-alt-delete to close FireFox. I tried finding a way to disable this, but I found no option to.

Ending the Firefox program or process with the Windows Task Manager "looks like" a crash. The proper way to exit Firefox is click Firefox button > Exit (or File > Exit, if using the Menu Bar).
'''If this reply solves your problem, please click "Solved It" next to this reply when <u>signed-in</u> to the forum.'''
Not related to your question, but...
You need to update some plug-ins:
*Plug-in check: https://www-trunk.stage.mozilla.com/en-US/plugincheck/
*Adobe Shockwave for Director Netscape plug-in: [https://support.mozilla.com/en-US/kb/Using%20the%20Shockwave%20plugin%20with%20Firefox#w_installing-shockwave Installing ('''''or Updating''''') the Shockwave plugin with Firefox]
*Adobe PDF Plug-In For Firefox and Netscape: [https://support.mozilla.com/en-US/kb/Using%20the%20Adobe%20Reader%20plugin%20with%20Firefox#w_installing-and-updating-adobe-reader Installing/Updating Adobe Reader in Firefox]
*Shockwave Flash (Adobe Flash or Flash): [https://support.mozilla.com/en-US/kb/Managing%20the%20Flash%20plugin#w_updating-flash Updating Flash in Firefox]
*Next Generation Java Plug-in for Mozilla browsers: [https://support.mozilla.com/en-US/kb/Using%20the%20Java%20plugin%20with%20Firefox#w_installing-or-updating-java Installing or Updating Java in Firefox]

Disable Window keys ALT+TAB, CTRL+ALT+DEL

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