From the Tk::focus POD: 

       $widget->focusForce
           Sets the focus of $widget's display to $widget, even if the
+ appli-
           cation doesn't currently have the input focus for the displ
+ay.
           This command should be used sparingly, if at all.  In norma
+l usage,
           an application should not claim the focus for itself;  inst
+ead, it
           should wait for the window manager to give it the focus.

[download]

I've found only one case where focusForce was required to get focus back to one of my windows, and that was after a call to getOpenFile from a composite widget. I'm still not sure if focusForce was required because of something I was doing wrong or a focus bug introduced by getOpenFile (I suspect the former).

If raising a window doesn't cause the window manager to give it focus, then $widget->focus should be sufficient.

In reply to Re: Re: How to bring a Tk window to the top by converter
in thread How to bring a Tk window to the top by rinceWind

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