In a text box control I need to determine the user action that triggered either When or GotFocus events: was it TAB key, Left Mouse click or Right mouse click? LASTKEY() doesn't return mouse clicks, neither does KeyPress. When and GotFocus events fire before Click or RightClick; MouseDown doesn't fire at all in this scenario, so far as I can determine; and the MouseEnter nButton parameter returns zero, regardless of which mouse button is used.

This seems so simple there must be some solution staring me in the face that I'm too fogged over with New Year's grog to see. Any ideas?