The workflow I'd like to enable is:

1. Take a screenshot (and have it copied to the clipboard)
2. Be able to drag and drop that screenshot into my application of choice (Slack, Asana, etc)

Is this possible to do with Dropzone? I looked at the API to create a custom action, but it seems that I'd need to copy the contents of the clipboard to the Drop Bar, but I don't see that exposed anywhere in the API.