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Capture Key Pressed

 
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Capture Key Pressed
Allen.Brumley
23 Aug, 2008 - 06:41 AM
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I need to capture the key that is pressed on the key board and react accordingly. I've tried to figure out how to catch the key in KeyDown, KeyPress, and KeyUp using the event arg (e) with no luck.

CODE
private void myProg_KeyUp(Object sender, KeyEventArgs e)
{
switch (e.KeyValue)
case 0:
//todo work
break;
case 1:
//todo work
break;
}


this just isn't working and I'm not sure what I'm doing wrong. I'm new to programming and have not had to capture key press's before so this one has me stumped.

Any help would be appriciated. I need to capture the number keys, period key, enter key, and Symbol keys. I am ignoring the alphabet basically.

I was hoping that the basic calculator example would have this in it but I didn't find it there. (maybe it could be added?)

This post has been edited by Allen.Brumley: 23 Aug, 2008 - 06:43 AM
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Martyr2
RE: Capture Key Pressed
23 Aug, 2008 - 07:38 AM
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I guess the question I have is "What control are you using to capture the events?"

If you start a new project, put on a textbox control, select it and add the keypress event you could do an event like this...

csharp

private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
     MessageBox.Show(e.KeyChar.ToString());
}


This would capture keys like letters, numbers, periods, symbols etc. Any of the character keys. It will then display them in a messagebox prior to adding them to the textbox. This allows you to evaluate them.

Hopefully this is what you are after. smile.gif
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Allen.Brumley
RE: Capture Key Pressed
23 Aug, 2008 - 12:50 PM
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QUOTE(Martyr2 @ 23 Aug, 2008 - 10:38 AM) *

I guess the question I have is "What control are you using to capture the events?"

Hopefully this is what you are after. smile.gif


that was exactly what I was after. I'm catching the keypress from a text box. I just wasn't using the .ToString(() part which made it not work. Now I've got it as:

CODE

        private void MyProg_KeyPress(object sender, KeyPressEventArgs e)
        {
            switch (e.KeyChar.ToString())
            {
                case "0":
                    kryBtn0_Click(sender, e);
                    e.Handled = true;
                    break;
                case "1":
                    kryBtn1_Click(sender, e);
                    e.Handled = true;
                    break;
                case "2":
                    kryBtn2_Click(sender, e);
                    e.Handled = true;
                    break;
                 default:
                     e.Handled = true;
                     break;
             }
          }


Made all the differance in the world, Thanks!

This post has been edited by Allen.Brumley: 23 Aug, 2008 - 01:00 PM
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