Hello,

I have been trying to create a window using following code.

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using ScriptPortal.Vegas;

public class EntryPoint
{
    public Form prompt;
    public Vegas myveg;
    public Button mybut;

    public void FromVegas(Vegas vegas)
    {
        myveg = vegas;
        prompt = new Form
        {
            Width = 300,
            Height = 150,
            Text = "Keyframer",
            BackColor = Color.Red
        };
        mybut = new Button { Text = "Add a value", Left = 0, Width = 123, Height = 64, BackColor = Color.White };
        mybut.Click += BtnKick;
        prompt.Controls.Add(mybut);
        prompt.ShowDialog();
    }

    private void BtnKick(object sender, EventArgs e)
    {
        var tracks = myveg.Project.Tracks;
        foreach (var ev in tracks)
        {
            if (ev.MediaType == MediaType.Video)
            {
                foreach (var effect in ev.Effects)
                {
                    if (effect.Bypass)
                    {
                        continue;
                    }
                    try
                    {
                        if (!effect.IsOFX)
                        {
                            continue;
                        }
                    }
                    catch (COMException)
                    {
                        continue;
                    }
                    var ofx = effect.OFXEffect;
                    foreach (var parameter in ofx.Parameters)
                    {
                        if (parameter is OFXDoubleParameter)
                        {
                            var p = parameter as OFXDoubleParameter;
                            p.SetValueAtTime(Timecode.FromFrames(30), 69);
                        }
                    }
                }
            }
        }
    }
}

Sadly, this window cannot be use while working in Vegas, as it's a modal dialog, and i need to switch between Vegas and this window..

When i changed it ShowDialog to Show, the Vegas crashed while execution..

Exception 0xE0434352 (Unknown Type) IP:0x00007FFB34154ED9
In Module 'KERNELBASE.dll' at Address 0x00007FFB34120000 + 0x0000000000034ED9

Interestingly when i removed the following line, it didn't crash..

  p.SetValueAtTime(Timecode.FromFrames(30), 69);

I found out that Vegas doesn't crash when i access a value, like p.Keyframes.Count, but when i change a value, it does..

I tried to add the following code after the prompt.Show line, and then it didn't crash, but i couldn't still access Vegas while running..

while (!prompt.IsDisposed)
{
     Application.DoEvents();
}

That could mean, that Vegas have problem with modifying a value after the script finishes, but i have no clue why..

I am using Vegas Pro 17, which is not the currently newest version, but i think the scripting along this subject didn't changed since then..

Can someone help me with this ?

I would also appreciate to know if there are other ways to create windows that can be used simultaneously while working in Vegas, or point to a publicly accessible script / library that uses one..