[RESOLVED] PDA Up/Down/eft/right buttons

[T120]

How can I get a vb.net mobile app to respond to the PDA buttons?

The following code appears to work when deployed to emulation but not when deployed to the device:-

    Private Sub App_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown

        If (e.KeyCode = System.Windows.Forms.Keys.Up) Then
            'Rocker Up
            'Up
        End If
        If (e.KeyCode = System.Windows.Forms.Keys.Down) Then
            'Rocker Down
            'Down
          End If

[sapator]

Have a try with
e.keydata instead of e.keycode

Alternative you can try API. The keybd_event in coredll but i don't think you must complicate things without a reason.

 <DllImport("coredll.dll", CharSet:=CharSet.Unicode)> _
    Public Shared Sub keybd_event(ByVal bVk As Byte, ByVal bScan As Byte, ByVal dwFlags As Integer, ByVal dwExtraInfo As Integer)
    End Sub

[T120]

The event fires when in emulation mode but not when it is deployed to the device. I'm using compact framework 1 and that does not support keypreview on a form.

If I try on framework 2 (which does support keypreview) it works, but to upgrade the app. to 2 is a load of hassle I could do without.

[sapator]

In a company i support they use CF 1 with key events on Smartphone 2003 so the keys most definitely work.

[T120]

OK - solved it

The generated vb code for the keydown event was:-

Private Sub ABC_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown

I changed it to :-

    Private Sub ABC_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TabControl1.KeyDown

using the left right buttons changes the tab and using the up down buttons has the desired effect on the current tab.

I don't understand MYBASE anyway

Thanks for your advice and help

Regards

Barry