Using an uploader, I know I can select a photo from the user’s local device, upload it and then use that picture within the xojo web app. But what I’d like to do is get a preview of the local image shown on the local device and get a selected color from that preview and work with that color on the server end. I know it should be possible with javascript, but I don’t know how. I don’t need the actual image on the server side, just the selected color so I’d like to avoid the delay and bandwidth use of uploading. The uploader internally has a preview before uploading, but it’s tiny (too small). Does anyone know how to use Javascript to do this and how to embed it into a Xojo Web App?