Paint.NET :: PNG Format In Clipboard?

My primary graphics tool is Paint.Net, but I have found an inadequacy for what I am doing.

Paint.NET copies data to the clipboard in the following formats

PaintDotNet.MaskedSurface
Format17
System.Drawing.Bitmap
Bitmap
DeviceIndependentBitmap

found by examining data.GetFormats() in C#. I cannot use PaintDotNet.MaskedSurface in my application and the others don't provide full transparency information for PNGs. Is there a way to have Paint.NET copy data to the clipboard using "PNG" format?

In my app, I can copy an image into the clipboard using the following code, and all transparency information is retained.

using (MemoryStream stream = newMemoryStream())
{
_Bitmap.Save(stream, ImageFormat.Png);
var data = newDataObject("PNG", stream);
Clipboard.Clear();
Clipboard.SetDataObject(data, true);
}

and I can read the same from the clipboard using the following

IDataObject data = Clipboard.GetDataObject();
if (data.GetFormats().Contains("PNG")){
MemoryStream ms = (System.IO.MemoryStream)data.GetData("PNG");
_Bitmap = (Bitmap)Bitmap.FromStream(ms, true);
}