Tk_DrawFocusHighlight - draw the traversal highlight ring for a widget
Tk_GetPixels(tkwin, gc, width, drawable)
Window for which the highlight is being drawn. Used to retrieve the window's dimensions, among other things.
Graphics context to use for drawing the highlight.
Width of the highlight ring, in pixels.
Drawable in which to draw the highlight; usually an offscreen pixmap for double buffering.
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