Solved

Blinking Num LED

Posted on 1998-12-18
7
390 Views
Last Modified: 2010-04-04
Hi! I want to make the Num Led blinking. How do I switch
Num on/off ?

Regards
ItsMe
0
Comment
Question by:ItsMe
  • 3
  • 2
  • 2
7 Comments
 
LVL 3

Expert Comment

by:williams2
ID: 1351754
What Num LED?
0
 

Author Comment

by:ItsMe
ID: 1351755
The lamp on the keyboard which is turned on/off when you press the "Num" key.
0
 
LVL 8

Expert Comment

by:ZifNab
ID: 1351756
Hi ItsMe,

try these :

procedure TMyForm.Button1Click(Sender: TObject);
  Var
    KeyState  :  TKeyboardState;
  begin
    GetKeyboardState(KeyState);
    if (KeyState[VK_NUMLOCK] = 0) then
      KeyState[VK_NUMLOCK] := 1
    else
      KeyState[VK_NUMLOCK] := 0;
    SetKeyboardState(KeyState);
  end;

Regards, Zif.

0
Does Powershell have you tied up in knots?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

 
LVL 3

Expert Comment

by:williams2
ID: 1351757
I guess that should answer your question :-)
0
 

Author Comment

by:ItsMe
ID: 1351758
That doesn't work but I've found out that it works when I send a Keyboard Event Message.

0
 

Author Comment

by:ItsMe
ID: 1351759
Uuups, I wanted to accept it. :-) Please send a comment as answer so that I can accept it.
0
 
LVL 8

Accepted Solution

by:
ZifNab earned 10 total points
ID: 1351760
ok.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Dev Express grid collapse 2 45
Open a URL with Internet Explorer in a new tab (not a new window) 1 96
Delphi: Connect to running MS Outlook 4 89
CheckListBox usage 3 59
Have you ever had your Delphi form/application just hanging while waiting for data to load? This is the article to read if you want to learn some things about adding threads for data loading in the background. First, I'll setup a general applica…
Introduction Raise your hands if you were as upset with FireMonkey as I was when I discovered that there was no TListview.  I use TListView in almost all of my applications I've written, and I was not going to compromise by resorting to TStringGrid…
This Micro Tutorial demonstrates using Microsoft Excel pivot tables, how to reverse engineer competitors' marketing strategies through backlinks.
Established in 1997, Technology Architects has become one of the most reputable technology solutions companies in the country. TA have been providing businesses with cost effective state-of-the-art solutions and unparalleled service that is designed…

809 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question