Trigger Action based on MIDI CC Value (3rd byte)

[kenm]

Forgive me if this isn't the right place to post this.

I'm trying to figure out how to trigger an action based on the value (3rd byte) of a MIDI CC message. I've looked extensively through the manual and have come to the conclusion that this needs to be done with a script. The problem is I don't know where to start with the script.

I have a MIDI controller that has a latching button. It sends CC# 0x6D with a value of 0x7F when pressed/latched and a value of 0x00 when released/unlatched. I want to assign 0x7F to Transport:Play and 0x00 to Transport:Stop.

Any guidance on how to go about this would be greatly appreciated.

Ken

[kenm]

OK. So this is pretty cheesy and took me an embarrassingly long time to figure out but it works.

In Lua:

is_new,filename,sectionID,cmdID,mode,resolution,value = reaper.get_action_context()
if is_new then
  reaper.ShowConsoleMsg("DEBUG: \nmode: " .. mode .. "\nresolution: " .. resolution .. "\nvalue: " .. value .. "\n")
  if value == 127 then
    action = "Play" -- Triggering Play Action
    reaper.Main_OnCommand(1007, 0)
  elseif value == 0 then
    action = "Stop" -- Triggering Stop Action
    reaper.Main_OnCommand(1016, 0)
  else
    action = "Ignore" -- Ignore Everything else
  end
reaper.ShowConsoleMsg(action .. "\n")
end

I have the action to run the script set to whenever a MIDI CC of 0x6D (109) is received on Channel 1 (the default button channel for my controller).

EDIT: Here's a minimal version without my testing stuff in it:

is_new,filename,sectionID,cmdID,mode,resolution,value = reaper.get_action_context()
if is_new then
  if value == 127 then
    reaper.Main_OnCommand(1007, 0)
  elseif value == 0 then
    reaper.Main_OnCommand(1016, 0)
  else
  end
end

BTW, I haven't written anything in Lua since my Autodesk days. Be kind.

Ken