How to Capture Function Keys F1..F12 in V.B.Net

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Hi i want to show a key value as a message when user press a key.
here function key is not working.
please help me.

VB

Private Sub show_key_val(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) _
         Handles txt_cust_name.KeyPress, txt_dist.KeyPress
       
MessageBox.Show(Convert.ToInt16(e.KeyChar))
       
    End Sub

Posted 8-Feb-12 19:53pm

dbhaskar

Updated 8-Feb-12 19:56pm

Sergey Alexandrovich Kryukov

v2

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Sergey Alexandrovich Kryukov 9-Feb-12 1:55am

What is V.B.NET?
--SA

walterhevedeich 9-Feb-12 1:59am

Can you really put Int parameters to MessageBox? From what I know, you can only put strings. Maybe that's why its not working.

Sergey Alexandrovich Kryukov 9-Feb-12 2:08am

Good catch, I did not notices that. But the main problem is that the wrong event is handled.
--SA

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Sergey Alexandrovich Kryukov · Accepted Answer · 2012-02-08T20:01:00

Solution 1

This event won't help you much. Use another event System.Windows.Forms.Control.KeyDown. It works with different event arguments parameter type, System.Windows.Forms.KeyEventArgs, the one you really can use with functional keys.

Use comparisons like if eventArgs.KeyCode = Keys.F1 …

See:
http://msdn.microsoft.com/en-us/library/system.windows.forms.control.keydown.aspx[^],
http://msdn.microsoft.com/en-us/library/system.windows.forms.keyeventargs.aspx[^],
http://msdn.microsoft.com/en-us/library/system.windows.forms.keyeventargs.keycode.aspx[^] (please see a code sample here).

—SA

Posted 8-Feb-12 20:01pm

Sergey Alexandrovich Kryukov

Comments

walterhevedeich 9-Feb-12 2:05am

Right.

Sergey Alexandrovich Kryukov 9-Feb-12 2:06am

Thank you,
--SA

Espen Harlinn 9-Feb-12 8:45am

5'ed!

Sergey Alexandrovich Kryukov 9-Feb-12 11:50am

Thank you, Espen.
--SA

thatraja 9-Feb-12 11:20am

Right, 5!

Sergey Alexandrovich Kryukov 9-Feb-12 11:50am

Thank you, Raja.
--SA