text: #ifndef _XCB_H
  #define _XCB_H
  
  #include <xcb/xcb.h>
  
  extern xcb_connection_t *conn;
  extern xcb_screen_t *screen;
  
  xcb_visualtype_t *get_root_visual_type(xcb_screen_t *s);
  xcb_pixmap_t create_bg_pixmap(xcb_connection_t *conn, xcb_screen_t *scr, u_int32_t *resolution, char *color);
  xcb_window_t open_fullscreen_window(xcb_connection_t *conn, xcb_screen_t *scr, char *color, xcb_pixmap_t pixmap);
  void grab_pointer_and_keyboard(xcb_connection_t *conn, xcb_screen_t *screen, xcb_cursor_t cursor);
  xcb_cursor_t create_cursor(xcb_connection_t *conn, xcb_screen_t *screen, xcb_window_t win, int choice);
  xcb_pixmap_t capture_bg_pixmap(xcb_connection_t *conn, xcb_screen_t *scr, u_int32_t* resolution);
  
  #endif
  