[2008] Detect tab?

[mnavas]

Hi all,

I want to detect when the user press tab in a textbox, instead of moving to the next control

I also want to be able to know when the user press tab and when the computer sendkeys tab

[RobDog888]

AFAIK, there is no real way to tell if the textbox is receiving a physical tab keypress or is receiving a sendkeys tab keypress.

Why do you need to know the difference?

[jmcilhinney]

You would need to inherit the TextBox class and override the ProcessCmdKey method to filter out the Tab key:

Public Class TextBoxEx
    Inherits TextBox
 
    Protected Overrides Function ProcessCmdKey(ByRef msg As System.Windows.Forms.Message, _
                                               ByVal keyData As System.Windows.Forms.Keys) As Boolean
        Return (keyData And Keys.Tab) = Keys.Tab OrElse _
               MyBase.ProcessCmdKey(msg, keyData)
    End Function
 
End Class

As far as the control is concerned there is no difference. It gets the same message from Windows either way.