>In a top level form running on the desktop with SCREEN=OFF, is there a way to programmatically determine that the top level form has lost focus? I.e. since when the user clicks on some other Win application, the Win desktop, etc. thus removing focus from the top level form application and the top level form Deactivate and Lost Focus events do not fire, is there a way to detect this?
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You might want to look at FAQ #7957, How do I detect when VFP is no longer in Foreground, as a starting point; it's similar to what GT discusses, but it works with the PID rather than the hWnd to discriminate the loss of focus resulting from a shift to a child window from a loss of focus to another application.