On 5/5/14, 1:06 AM, Earthednet-wp wrote:
I have a very simple test stack the moves 3 colored rectangles to random positions, then takes a snapshot. Without a wait before the snapshot command, it doesn't get the snapshot. Or, it takes the snapshot before the randomization finishes. I'm new to livecode, so I'm not sure what background processes are about, and how they are initiated, or what effect they might have on the snapshot.
Okay, that could explain it. If you are using "move without waiting", it executes concurrently as the rest of the handler runs, so the snapshot command will execute immediately after the move command is issued. The solution should be not to use "without waiting", just use a plain "move" command which will block the rest of the handler until the move completes. (You can lock moves to get all the blocks to move at once when you unlock moves.)
If you aren't using "without waiting" then there's something else going on. Since it worked before you may have found a bug. But I get the impression your real stack doesn't use a move command, so that's not necessarily the problem.
By "background activity" I just meant any other handlers in your script that might be executing concurrently with the snapshot handler. Move would be one, provided "without waiting" is specified. Pending messages from other handlers would be another, since they will execute during the waits in the script. The "load url" command, or getting a URL from a web site could be executing in the background.
Since the test stack doesn't have the problem, it's likely to be something in one of the other scripts in the real stack that's interfering. Normally that shouldn't happen because handlers execute one line at a time, in order, and each line must complete before the next one triggers. But a few things can interrupt that process, and I think something in your stack is doing that.
Or else it's a bug. Which it could be, since you say it used to work and now it doesn't. The trouble with this stuff is that it's very hard to pin down.
-- Jacqueline Landman Gay | jac...@hyperactivesw.com HyperActive Software | http://www.hyperactivesw.com _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
