Click here to Skip to main content
11,920,211 members (47,672 online)
Rate this:
Please Sign up or sign in to vote.
See more: MFC VisualC++
Is there any way to show my application message or any text on Cntrl+alt+del screen.....
Posted 27-Mar-13 8:42am
Rate this: bad
Please Sign up or sign in to vote.

Solution 2

Sergey is totally right. You still have two options to display some information on logon screen:
1) Use registry to add logon message. See:[^]
2) Use logon wallpaper:[^]

I found a really interesting thing for you:[^]
Sergey Alexandrovich Kryukov 27-Mar-13 14:45pm
Good suggestion, my 5.
OP really needs to tell us the ultimate goals.
Zoltán Zörgő 27-Mar-13 14:47pm
Thank you.
Yes, that would be helpful for us and hem too :)
SNI 28-Mar-13 2:02am
Thanks for all your efforts. But what I am trying is that whenever my application in User Mode received any mesaage and screen is locked then I want to show some notification on cntrl+alt+del screen.
Zoltán Zörgő 28-Mar-13 3:21am
See update!
Rate this: bad
Please Sign up or sign in to vote.

Solution 1

I don't think you can intercept this keyboard input at the level of any user-mode code. I don't know if it can be done in Ring 0 code, but it means the level of the kernel-mode driver or something like that.

This key combination is hidden by the OS from the user-code processes, for apparent safety reasons. If some code blocks Ctrl+Alt+Del, only a reset or power button can help, but its operation can also be blocked in system settings. What else to do then? Only removing the power… Smile | :)


This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

  Print Answers RSS
0 OriginalGriff 455
1 phil.o 170
2 CPallini 150
4 F-ES Sitecore 130
0 OriginalGriff 6,778
1 KrunalRohit 4,495
2 Sergey Alexandrovich Kryukov 3,153
3 George Jonsson 2,810
4 Suvendu Shekhar Giri 2,181

Advertise | Privacy | Mobile
Web01 | 2.8.151120.1 | Last Updated 28 Mar 2013
Copyright © CodeProject, 1999-2015
All Rights Reserved. Terms of Service
Layout: fixed | fluid

CodeProject, 503-250 Ferrand Drive Toronto Ontario, M3C 3G8 Canada +1 416-849-8900 x 100