Tip of day: Load GIF into WebImageView
// get some gif file
dim f as FolderItem = SpecialFolder.Desktop.child("test.gif")
// open GIF
dim g as GIFMBS = f.OpenAsGIFMBS
// get data for GIF file
dim b as BinaryStream = BinaryStream.Open(f)
dim s as string = b.Read(b.Length)
// get picture
dim fp as Picture = g.MakeFirstPicture
// creates a new webpicture based on picture
dim pic as new WebPicture(fp)
// now fill the web picture
pic.Data = s
pic.MIMEType = "image/gif"
pic.Filename = f.name
// show picture in WebImageView
me.Picture = pic
Verified to work in Xojo 2019r3.