int init_vr_keyboard(double keyboard_height, double keyboard_distance);
-void handle_vr_keyboard(int keyboard, double pointer_x, double pointer_y, double pointer_z, double pointer_yaw, double pointer_pitch, enum keycode *key);
-void render_vr_keyboard(int keyboard, double camera_x, double camera_y);
+int handle_vr_keyboard(double pointer_x, double pointer_y, double pointer_z, double pointer_yaw, double pointer_pitch, enum keycode *key);
+void render_vr_keyboard(double camera_x, double camera_y);