Solved

Key parameter in OnKeyUp is wrong

Posted on 2002-06-24
5
764 Views
Last Modified: 2012-05-04
In a delphi OnKeyUp event, when I press the ';' on the keyboard the 'Key' parameter is set as 186 which corresponds to the character: 'º'. I have also noticed discrepencies with the ',' key. What's going on and how can I get find out accurately which key has been pressed?
0
Comment
Question by:Siband
  • 2
  • 2
5 Comments
 
LVL 27

Expert Comment

by:kretzschmar
ID: 7103663
i guess that could
depend on the keyboardlayout- and/or countrysetting
of the os

do you have a special keyboardlayout and/or country setting?
0
 
LVL 27

Expert Comment

by:kretzschmar
ID: 7103689
next guess :-)

subtract just 127 from your value,
there may a flag set (bit 8?),
don't know the meaning at the moment
0
 

Author Comment

by:Siband
ID: 7103730
Subtracting 127 works for the ';' key but it doesn't work for the ',' key. A comma should be 44 but the value of Key is 188 in this case! I am not using a special keyboard as far as I know and my windows keyboard setting is 'English (United Kingdom)' which is correct.
0
 
LVL 11

Accepted Solution

by:
robert_marquardt earned 50 total points
ID: 7103886
This is the Scancode not the ASCII-Key. You will have to compare to the VK_ constants. They only correspond with ASCII for the alphanumeric keys.
0
 

Author Comment

by:Siband
ID: 7104019
Thanks, That cirtainly answered the question. I have only given a B grading because I still don't know where to find a comprehensive list of the VK_ constants. I had to poke around to find a few in the Windows.pas file but it was cirtainly not comprehensive and didn't contain the ones for ';' and ','. I thank you for pointing me in the right direction however.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

Suggested Solutions

Objective: - This article will help user in how to convert their numeric value become words. How to use 1. You can copy this code in your Unit as function 2. than you can perform your function by type this code The Code   (CODE) The Im…
Introduction The parallel port is a very commonly known port, it was widely used to connect a printer to the PC, if you look at the back of your computer, for those who don't have newer computers, there will be a port with 25 pins and a small print…
Internet Business Fax to Email Made Easy - With  eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, f…
Hi friends,  in this video  I'll show you how new windows 10 user can learn the using of windows 10. Thank you.

910 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

Need Help in Real-Time?

Connect with top rated Experts

23 Experts available now in Live!

Get 1:1 Help Now