• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 67
  • Last Modified:

Keyboard Shortcuts, Windows, Alt Key

I have an Windows app for which I want the keyboard shortcuts to be shown.  By this I mean the underscore.  I understand that the user has to hit the alt key to show them, and that this was a Windows behavior change at some point.   How can I show them by default just within my app?
0
HLRosenberger
Asked:
HLRosenberger
  • 2
  • 2
1 Solution
 
Russ SuterCommented:
This is done system-wide using the accessibility options in the Control Panel. If you wish to override this default behavior you'll probably need to subclass the Button control and override the OnPaint event. This means you need to handle painting the rectangle as well as the text. To fully implement this properly you'll need to deal with painting during hover and click actions as well. It's not impossible but it's a bit of a task.
0
 
HLRosenbergerAuthor Commented:
that's too much work.  I thought maybe there was an easy way.  What about send the ALT key to my app?
0
 
Russ SuterCommented:
OK, interesting idea. Yes, you should be able to do this. I experimented with it a little. You can't actually do it on the Form_Load event handler since the form hasn't fully rendered yet. The quick and dirty way to do it is to add a Timer control to the form, set its properties as follows:
(Name): [whatever you want]
Enabled: True
GenerateMember: True
Interval: 1
Modifiers: Private
Tag:
Then add a Tick event handler and put this code in there:
        private void timer1_Tick(object sender, EventArgs e)
        {
            SendKeys.SendWait("%{UP}");
            timer1.Enabled = false;
        }

Open in new window

Voila! You've sent an ALT+UP keystroke to your form. I'm still looking into how to send just an ALT key by itself but that doesn't seem to be an option. ALT+UP is somewhat innocuous and shouldn't cause any adverse side-effects unless your form is specifically looking for that keystroke.
0
 
HLRosenbergerAuthor Commented:
thanks
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

  • 2
  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now