Release List FX Parameter Indexes v1.0

Development/graysonsolis_List FX parameter indices.lua

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+-- @description List FX parameter indices
+-- @author Grayson Solis
+-- @version 1.0
+-- @about
+--   Prints each FX on the first selected track along with all of its parameter indices.
+--
+--   Directions:
+--     1) Select a track in REAPER.
+--     2) Run this script.
+--     3) Open the ReaScript Console (View → Show Console) to see the output.
+
+local track = reaper.GetSelectedTrack(0, 0)
+if not track then
+  reaper.ShowMessageBox(
+    "Error: No track selected.\nPlease select a track and run again.",
+    "No Track Selected",
+    0
+  )
+  return
+end
+
+reaper.ClearConsole()
+local _, trackName = reaper.GetTrackName(track, "")
+reaper.ShowConsoleMsg("FX parameter indices for track: " .. trackName .. "\n\n")
+
+local fxCount = reaper.TrackFX_GetCount(track)
+if fxCount == 0 then
+  reaper.ShowConsoleMsg("  (No FX found on this track.)\n")
+  return
+end
+
+for fx_idx = 0, fxCount - 1 do
+  local _, fxName = reaper.TrackFX_GetFXName(track, fx_idx, "")
+  fxName = fxName or "(Unknown FX name)"
+  reaper.ShowConsoleMsg(string.format("FX #%d: \"%s\"\n", fx_idx, fxName))
+
+  local paramCount = reaper.TrackFX_GetNumParams(track, fx_idx)
+  if paramCount == 0 then
+    reaper.ShowConsoleMsg("  (No parameters for this FX)\n\n")
+  else
+    for param_idx = 0, paramCount - 1 do
+      local _, paramName = reaper.TrackFX_GetParamName(track, fx_idx, param_idx, "")
+      paramName = paramName or "(Unknown param name)"
+      reaper.ShowConsoleMsg(
+        string.format("    Param %d  →  \"%s\"\n", param_idx, paramName)
+      )
+    end
+    reaper.ShowConsoleMsg("\n")
+  end
+end
+
+reaper.ShowConsoleMsg("→ End of list.\n")