===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/screen-write.c,v
retrieving revision 1.161
retrieving revision 1.162
diff -c -r1.161 -r1.162
*** src/usr.bin/tmux/screen-write.c	2020/04/15 16:11:23	1.161
--- src/usr.bin/tmux/screen-write.c	2020/04/16 13:35:24	1.162
***************
*** 1,4 ****
! /* $OpenBSD: screen-write.c,v 1.161 2020/04/15 16:11:23 nicm Exp $ */
  
  /*
   * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
--- 1,4 ----
! /* $OpenBSD: screen-write.c,v 1.162 2020/04/16 13:35:24 nicm Exp $ */
  
  /*
   * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
***************
*** 100,106 ****
  screen_write_start(struct screen_write_ctx *ctx, struct window_pane *wp,
      struct screen *s)
  {
! 	u_int	y;
  
  	memset(ctx, 0, sizeof *ctx);
  
--- 100,107 ----
  screen_write_start(struct screen_write_ctx *ctx, struct window_pane *wp,
      struct screen *s)
  {
! 	struct tty_ctx	ttyctx;
! 	u_int		y;
  
  	memset(ctx, 0, sizeof *ctx);
  
***************
*** 129,145 ****
--- 130,154 ----
  			    screen_size_y(ctx->s));
  		}
  	}
+ 
+ 	screen_write_initctx(ctx, &ttyctx);
+ 	tty_write(tty_cmd_syncstart, &ttyctx);
  }
  
  /* Finish writing. */
  void
  screen_write_stop(struct screen_write_ctx *ctx)
  {
+ 	struct tty_ctx	ttyctx;
+ 
  	screen_write_collect_end(ctx);
  	screen_write_collect_flush(ctx, 0);
  
  	log_debug("%s: %u cells (%u written, %u skipped)", __func__,
  	    ctx->cells, ctx->written, ctx->skipped);
+ 
+ 	screen_write_initctx(ctx, &ttyctx);
+ 	tty_write(tty_cmd_syncend, &ttyctx);
  
  	free(ctx->item);
  	free(ctx->list); /* flush will have emptied */