WebPicture.Constructor(width As Integer, height As Integer, files() As FolderItem)
From Xojo Documentation
Constructor
Creates a multi-resolution image from picture files on the drive. It creates a file-based WebPicture which saves on memory and is only loaded/delivered to a browser when it is requested.
Notes
WebImageView, WebCanvas and WebToolbar have all been updated to use the new WebPicture format and deliver high resolution images to browsers that support them.