static void send_ext_audio_ack(VncState *vs) { vnc_lock_output(vs); vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); vnc_write_u8(vs, 0); vnc_write_u16(vs, 1); vnc_framebuffer_update(vs, 0, 0, surface_width(vs->vd->ds), surface_height(vs->vd->ds), VNC_ENCODING_AUDIO); vnc_unlock_output(vs); vnc_flush(vs); }