fixes, logging for off screen

libxrdp/xrdp_orders.c

@@ -2449,6 +2449,7 @@ xrdp_orders_send_create_os_surface(struct xrdp_orders *self, int id,
     order_flags |= 1 << 2; /* type RDP_ORDER_ALTSEC_CREATE_OFFSCR_BITMAP */
     out_uint8(self->out_s, order_flags);
     cache_id = id & 0x7fff;
+    LLOGLN(10, ("xrdp_orders_send_create_os_surface: cache_id %d", cache_id));
     flags = cache_id;
 
     if (num_del_list > 0)

xrdp/xrdp_painter.c

@@ -708,6 +708,8 @@ xrdp_painter_copy(struct xrdp_painter *self,
     int dsty;
     int w;
     int h;
+    int index;
+    struct list *del_list;
 
     if (self == 0 || src == 0 || dst == 0)
     {
@@ -781,6 +783,22 @@ xrdp_painter_copy(struct xrdp_painter *self,
         cache_id = 255; // todo
         cache_idx = src->item_index; // todo
 
+        if (src->tab_stop == 0)
+        {
+            g_writeln("xrdp_painter_copy: warning src not created");
+            del_list = self->wm->cache->xrdp_os_del_list;
+            index = list_index_of(del_list, cache_idx);
+            list_remove_item(del_list, index);
+            libxrdp_orders_send_create_os_surface(self->session,
+                                                  cache_idx,
+                                                  src->width,
+                                                  src->height,
+                                                  del_list);
+            src->tab_stop = 1;
+            list_clear(del_list);
+        }
+
+
         k = 0;
 
         while (xrdp_region_get_rect(region, k, &rect1) == 0)