| TYPE | NAME | DESCRIPTION |
|---|---|---|
| INT32 | run_mode | Interactive, [non-interactive] |
| IMAGE | image | The image to work on |
| DRAWABLE | drawable | The drawable to work on |
| STRING | filename | The name of the file |
| STRING | raw_filename | The name of the file |
| INT32 | depth | format (currently always 0) |
| INT32 | compression | compression (currently always 0) |
| INT32 | index | write an index hunk (required by some software) |