gtk/text_view.go
func (v *TextView) BufferToWindowCoords(win TextWindowType, buffer_x, buffer_y int) (window_x, window_y int) {
	var wx, wy C.gint
	C.gtk_text_view_buffer_to_window_coords(v.native(), C.GtkTextWindowType(win), C.gint(buffer_x), C.gint(buffer_y), &wx, &wy)
	return int(wx), int(wy)
}
func (v *TextView) BufferToWindowCoords(win TextWindowType, buffer_x, buffer_y int) (window_x, window_y int) {
	var wx, wy C.gint
	C.gtk_text_view_buffer_to_window_coords(v.native(), C.GtkTextWindowType(win), C.gint(buffer_x), C.gint(buffer_y), &wx, &wy)
	return int(wx), int(wy)
}
// BufferToWindowCoords is a wrapper around gtk_text_view_buffer_to_window_coords().