Tk_DrawFocusHighlight - draw the traversal highlight ring for a widget

       Tk_Window tkwin (in)              Window  for  which  the highlight is being drawn.  Used to retrieve the
                                         window's dimensions, among other things.

       GC gc (in)                        Graphics context to use for drawing the highlight.

       int width (in)                    Width of the highlight ring, in pixels.

       Drawable drawable (in)            Drawable in which to draw the highlight;  usually an  offscreen  pixmap
                                         for double buffering.
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Tk_DrawFocusHighlight is a utility procedure that draws the traversal highlight ring for a widget.  It is
       typically invoked by widgets during redisplay.

       focus, traversal highlight

Tk                                                     4.0                            Tk_DrawFocusHighlight(3tk)

       Tk_DrawFocusHighlight - draw the traversal highlight ring for a widget

#include<tk.h>Tk_DrawFocusHighlight(tkwin,gc,width,drawable)