@Steve_Rhoden, @m3lquixd - rotating alpha channel

using System;
using System.Collections.Generic;
using System.Collections;
using System.IO;
using System.Text;
using System.Windows.Forms;
using System.Globalization;
using System.Drawing;
using System.Runtime;
using System.Xml;
using ScriptPortal.Vegas;

namespace Test_Script
{
    public class Class1
    {
        public Vegas myVegas;
        public RulerFormat OrgRulerFormat;

        public void Main(Vegas vegas)
        {
            myVegas = vegas;

            foreach (Track myTrack in myVegas.Project.Tracks)
            {
                if (myTrack.IsVideo())
                {
                    foreach (TrackEvent evnt in myTrack.Events)
                    {
                        if (evnt.Selected)
                        {
                            VideoEvent vEvent = (VideoEvent)evnt;
                            VideoStream vs = (VideoStream)vEvent.ActiveTake.Media.Streams.GetItemByMediaType(MediaType.Video, vEvent.ActiveTake.StreamIndex);

                            VideoAlphaType alpha = vs.AlphaChannel;
                            if (alpha == VideoAlphaType.None)
                                vs.AlphaChannel = VideoAlphaType.Premultiplied;
                            else if (alpha == VideoAlphaType.Premultiplied)
                                vs.AlphaChannel = VideoAlphaType.PremultipliedDirty;
                            else if (alpha == VideoAlphaType.PremultipliedDirty)
                                vs.AlphaChannel = VideoAlphaType.Straight;
                            else if (alpha == VideoAlphaType.Straight)
                                vs.AlphaChannel = VideoAlphaType.None;
                        }
                    }
                }
            }
        }
    }
}

public class EntryPoint
{
    public void FromVegas(Vegas vegas)
    {
        Test_Script.Class1 test = new Test_Script.Class1();
        test.Main(vegas);
    }
}