key press event

[Synth3t1c]

when someone pushes f12 an action takes place. how to do it?

[Pirate]

Use KeyDown or KeyUp event .

Private Sub Form1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown
            If e.KeyData = Keys.F12 Then
                MessageBox.Show("You just pressed F12")
            End If
End Sub

[Pirate]

Set form's KeyPreview property in the Properties Explorer to True .

[Synth3t1c]

not workin

[Synth3t1c]

might it be mecause the combo box is selected?

[Pirate]

Originally posted by Synth3t1c
not workin

What do you mean not working ? Do you mean you want to set up a wide-system hotkey or what ?

It's working here .

[Pirate]

Originally posted by Synth3t1c
might it be mecause the combo box is selected?

Even if the focus was in another control , it should trigger the event . I've just tested it .

[mar_zim]

'syn maybe you forgot to put this.
KeyPreview = True

[brown monkey]

hello mate. not in combo. i don't know about upper than 2k2 but i don't get the keydown event of the form if the focus is in the combo.

[Pirate]

Originally posted by brown monkey
hello mate. not in combo. i don't know about upper than 2k2 but i don't get the keydown event of the form if the focus is in the combo.

Are you sure you set the form's KeyPreview property in the Properties Explorer to True ?

[brown monkey]

yep

[Pirate]

Try this .

[brown monkey]

yep. it works. but it won't with the dropdownstyle of combobox1 is set to dropdown. works with the dropdownlist style.

[alextyx]

Damned B.M. !
Once again you are right!
I use Vs.Net 2003 but I have the same behaviour.
I have a combo in DropDownStyle and...

Private Sub FrmRientri_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown
        If MessageBox.Show(Me.CmbNumeroDocRientro.DropDownStyle.ToString & "    " & " I'm in KeyDown. Do you want to change in DropDown", "", MessageBoxButtons.YesNo) = DialogResult.Yes Then
            Me.CmbNumeroDocRientro.DropDownStyle = ComboBoxStyle.DropDown
        End If
    End Sub

as you can see my procedure show a message box when keydown event is fired. It remind me that is placed in keydown event and ask me if I want to change the style of combo. After two or three rounds I decided to change the style and..... from that moment my event was not more fired. It seems a bug, isn't it?