Check old component before hiding it for a component switching. Ref: ticket #37 in assembla - Scribboo try to hide old component before switching to new one. But, old one was already removed. It cause an error. - This is fixed by checking old component if it is still existed before hiding it.

// -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 4; -*-
// vim: sw=4:ts=8:sts=4
#ifndef __X_SUPP_H_
#define __X_SUPP_H_

#include <X11/Xlib.h>

typedef Window MB_WINDOW;
typedef Display *MB_DISPLAY;

#endif