| Value | Meaning |
|---|---|
| DEFAULT1 | Means nothing, and should not be used. |
| COPY2 | Copy the data. |
| MOVE4 | Move the data, i.e. first copy it, then delete it from the source using the DELETE target of the X selection protocol. |
| LINK8 | Add a link to the data. Note that this is only useful if source and destination agree on what it means. |
| PRIVATE16 | Special action which tells the source that the destination will do something that the source doesn’t understand. |
| ASK32 | Ask the user what to do with the data. |
Used in #GdkDragContext to indicate what the destination should do with the dropped data.