#include void * gdk_wayland_device_get_wl_pointer(GdkDevice *device); void * gdk_wayland_device_get_wl_keyboard(GdkDevice *device); void * gdk_wayland_device_get_wl_seat(GdkDevice *device); void * gdk_wayland_display_get_wl_compositor(GdkDevice *device); void * gdk_wayland_display_get_wl_display(GdkDisplay *display); void * gdk_wayland_display_get_xdg_shell(GdkDisplay *display); void * gdk_wayland_window_get_wl_surface(GdkWindow *window); void gdk_wayland_window_set_use_custom_surface(GdkWindow *window);