text: #ifndef WLR_BACKEND_WAYLAND_H
  #define WLR_BACKEND_WAYLAND_H
  #include <stdbool.h>
  #include <wayland-client.h>
  #include <wayland-server-core.h>
  #include <wlr/backend.h>
  #include <wlr/types/wlr_input_device.h>
  #include <wlr/types/wlr_output.h>
  
  /**
   * Creates a new wlr_wl_backend. This backend will be created with no outputs;
   * you must use wlr_wl_output_create to add them.
   *
   * The `remote` argument is the name of the host compositor wayland socket. Set
   * to NULL for the default behaviour (WAYLAND_DISPLAY env variable or wayland-0
   * default)
   */
  struct wlr_backend *wlr_wl_backend_create(struct wl_display *display,
  		const char *remote, wlr_renderer_create_func_t create_renderer_func);
  
  /**
   * Adds a new output to this backend. You may remove outputs by destroying them.
   * Note that if called before initializing the backend, this will return NULL
   * and your outputs will be created during initialization (and given to you via
   * the output_add signal).
   */
  struct wlr_output *wlr_wl_output_create(struct wlr_backend *backend);
  
  /**
   * True if the given backend is a wlr_wl_backend.
   */
  bool wlr_backend_is_wl(struct wlr_backend *backend);
  
  /**
   * True if the given input device is a wlr_wl_input_device.
   */
  bool wlr_input_device_is_wl(struct wlr_input_device *device);
  
  /**
   * True if the given output is a wlr_wl_output.
   */
  bool wlr_output_is_wl(struct wlr_output *output);
  
  /**
   * Sets the title of a wlr_output which is a Wayland window.
   */
  void wlr_wl_output_set_title(struct wlr_output *output, const char *title);
  
  #endif
  