gint index, gint* x, gint* y, GdkRectangle* rect)
gint index, gint* x, gint* y, GtkMathViewBox* gbox)
GTKMATHVIEW_METHOD_NAME(get_char_location)(GtkMathView* math_view, GtkMathViewElementId elem,				gint index, gint* x, gint* y, GdkRectangle* rect){  g_return_val_if_fail(math_view != NULL, FALSE);  g_return_val_if_fail(math_view->view != NULL, FALSE);  g_return_val_if_fail(elem != NULL, FALSE);  g_return_val_if_fail(index >= 0, FALSE);  if (SmartPtr<Element> e = elementOfModelElement(math_view->view->getBuilder(), elem))    {      scaled sx;      scaled sy;      BoundingBox box;      if (math_view->view->getCharExtents(e, index, sx, sy, box))	{	  if (x) *x = Gtk_RenderingContext::toGtkX(sx);	  if (y) *y = Gtk_RenderingContext::toGtkY(sy);	  if (rect)	    {	      Rectangle srect(sx, sy, box);	      rect->x = Gtk_RenderingContext::toGtkX(srect.x);	      rect->y = Gtk_RenderingContext::toGtkY(srect.y);	      rect->width = Gtk_RenderingContext::toGtkPixels(srect.width);	      rect->height = Gtk_RenderingContext::toGtkPixels(srect.height);	    }	  return TRUE;	}    }  return FALSE;}