Form's Keydown Event not Firing in VB.NET

How to enable Keydown, Keypress events for Windows forms (.NET)

If the Keydown, Keypress events etc are not fired in WinForms application, check if the KeyPreview is set

How to use Function Keys in VB.NET Windows Application

Capture Function Keys in VB.NET Windows Application

The following snippet might help you in capturing the Function Keys (F1 to F12) in a VB.NET application

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

Select Case e.KeyCode 

Case Keys.F1 

MessageBox.Show("Help is on the way") 

Case Keys.F5 

RefreshMethod() 

Case Keys.F9 

MessageBox.Show("You have pressed F9") 

End Select 

End Sub