[v7 General Discussion] PowerPoint macros

I'm in the process of writing some PowerPoint macros to dynamically change a presentation depending upon what time it is run within EasyWorship. So far all is working well but I have one problem - I can't work out a way to determine that the presentation has gone live. Currently I can only detect that a presentation has been opened. Not only does this seem to occur when it goes live but also when the presentation is initially loaded into EasyWorship and when it is loaded into the preview window. Does anyone have any ideas how I can test it is live within the macro?

Any help much appreciated