*** Explicitly call base class behavior TextBox::GotFocus() WITH This *** Set insertion point .SelStart = 0 *** Highlight contents .SelLength = 999 ENDWITH *** Suppress normal base class behavior NODEFAULTNotice that this also highlights the contents. If you don't want that remove the SelLength reference. If you want it configurable you can use the native 'SelectOnEntry' property to determine whether or not to enable the highlight.