busca informacion sobre los eventos KeyDown, KeyUp, KeyPress o OnKeyDown, OnKeyUp, OnKeyPress
Private Sub Form1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown
If e.KeyCode = Keys.NumPad0 Then
MsgBox("presionaste 0")
End If
End Sub
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Protected Overrides Sub OnKeyDown(ByVal e As System.Windows.Forms.KeyEventArgs)
If e.KeyCode = Keys.NumPad0 Then
MsgBox("presionaste 0")
End If
End Sub