When you drag-and-drop a file from e.g. a file manager into some application, then the DnD events do not contain the file. Instead, they contain something like `text/uri-list` enumerating the file paths. If you sandbox some app, then you need a bit of software to map and translate these paths. If you do not provide such software, then your sandbox does not support DnD.
When you drag-and-drop a file from e.g. a file manager into some application, then the DnD events do not contain the file. Instead, they contain something like `text/uri-list` enumerating the file paths. If you sandbox some app, then you need a bit of software to map and translate these paths. If you do not provide such software, then your sandbox does not support DnD.