I wanted to put markers at every place where the media for an event comes from a different file than the previous event. I name each marker using the file name of the media for that event.

My main reason for doing this script is that I wanted to be able to export a list of all the media files used on a particular track. Since I can copy and paste marker names from the "Edit Details" view, this script provided a quick and dirty (read "kludge") way to get this information into a spreadsheet.

Not exactly a work of art. Many thanks, as usual, to Edward Troxel, whose "AddMarkersToEvents" script provided the basis for this one.
====================

/**

 * This script adds markers at media transitions on the first selected track.

 * A "media transition" happens when an event comes from a 

 * different file than the preceding event.

 * The markers are labeled with the name of the media file.

 * If a marker already exists, no new marker is created.

 *

 * Written By: John Meyer (from a script by Edward Troxel)

 * 12/10/2003

 *

 **/



import System;

import System.IO;

import System.Windows.Forms;

import Microsoft.Win32; 

import SonicFoundry.Vegas;



try {

  var myMarker : Marker;

  var LastFileName = " ";



  //Find the first selected track

  var track = FindSelectedTrack();

  if (null == track)

      throw "no selected track";



  var eventEnum = new Enumerator(track.Events);



  // Cycle through all events on the selected track



  while (!eventEnum.atEnd()) { 

    var evnt : TrackEvent = TrackEvent(eventEnum.item());

    var MyFilePath = evnt.ActiveTake.MediaPath; 

    var extFileName = Path.GetFileName(MyFilePath);

    var baseFileName = Path.GetFileNameWithoutExtension(extFileName); // Media file name for this event



    // Only add marker if this event's media is different from last event, and if no marker already exists.

    if ( (baseFileName != LastFileName) && (!MarkerExist(evnt.Start.ToMilliseconds() ) ) ) {

      myMarker = new Marker(evnt.Start);

      Vegas.Project.Markers.Add(myMarker);

      myMarker.Label = baseFileName;

    }



    // Prepare for next event

    LastFileName = baseFileName;

    eventEnum.moveNext();

  }



} catch (e) {

    MessageBox.Show(e);

}



// Function to find first selected track

function FindSelectedTrack() : Track {

  var trackEnum = new Enumerator(Vegas.Project.Tracks);

  while (!trackEnum.atEnd()) {

    var track : Track = Track(trackEnum.item());

    if (track.Selected) {

        return track;

    }

    trackEnum.moveNext();

  }

  return null;

}



// Function to check if there is a marker at timecode passed to this function

// Timecode (dStart) must be in milliseconds

function MarkerExist (dStart) : boolean {



  var fmarkerEnum = new Enumerator(Vegas.Project.Markers);



  while (!fmarkerEnum.atEnd()) {

    var fMyMarker = fmarkerEnum.item();        

    var fMarkerStart = fMyMarker.Position.ToMilliseconds();

    if ( dStart == fMarkerStart ) {

      return 1;

    }



  fmarkerEnum.moveNext();



  } // End while fmarkerEnum



  return 0;

}