Many moons ago, when I was a young girl learning Authorware, I ran into a problem. I had set up a slider, and I was using a Conditional set to Dragging@"Slider." The Conditional was set to Match When True and to Try Again Branching, so it continually executed while the slider was being dragged. The problem with this is that the slider position did not visually update until the user let go of the slider!
Ultimately, I discovered that you could force the screen to update by adding a zero second Wait inside the Dragging response. It wasn't quick or easy, but I finally found the solution.
This week, someone on the macromedia.authorware newsgroup asked a question about getting a knob to "pop" to 30 degree increments. "Aha!" sez I (I'm given to these moments of erudition), "I can use the problem I had earlier as this person's solution." So I suggested that he use a Decision icon to only direct the flow through the Wait and update the screen when he wanted the knob to "pop" to that position.
The moral of the story is: most things that cause us problems one day will likely themselves become solutions to other problems in the future.
I have no idea whether he actually implemented my solution, but I thought it would make a nice example file, so I built it and uploaded it to my website.
As a special bonus, I discovered something new while making this file. The original problem could also have been solved by embedding an expression into the Interaction and setting the Icon to "Update Displayed Variables." However, that solution would not have solved this problem. Or would it?
Tune in next week to see if I provide a second
solution using an embedded expression.