I left a suggestion in your FFGL plugin thread about this...
1) Put any effect on a clip or the comp, one with enough parameters to do what you want. Bypass it.
--If you want to use the same parameters from an effect your are actually using in Resolume, don't bypass, just use that.
2) Receive OSC in PureData or whatever thing like that you know. Convert to MIDI.
--Enable OSC mapping mode in Resolume to see what you need to route. will be something like:
"/composition/video/effect1/param1/values 0-1"
3) Use loopMIDI/MIDI Yoke/Copperlan (Win) or IAC core MIDI (OSX) to send that MIDI to OF.
...if OpenFranework can do OSC, skip the pd part and go straight from Reso to OF with OSC.
Thanks for the reply, I did make such a connection with direct link to resolume via OSC, each of the parameter has even a enable / disable checkbox. I will publish a bunch of new stuff this coming month.