Programming Question can't use the playback function

[weiqi]

I have tried to use the playback function to see the effect of my own satellite, which is called FSKY. However, after recorded the process, I open the scenario in the "Playback" directiory, but it couldn't run in the orbiter.

Then I found there was a deathful error when I was developing the FSKY.dll. I left the body of "clbkSaveState" function blank, because I don't konw how to accomplish it.

I'm looking for any useful advice! Thanks for you help!