# drop-zone parameter (skin)

Source: https://ref.dm-lang.org/skin/param/drop-zone

### Applies to
> [All](https://ref.dm-lang.org/skin/control/index.md)

### Format
> `true/false`

### Default value
- ``true` for [Grid](https://ref.dm-lang.org/skin/control/grid.md), [Info](https://ref.dm-lang.org/skin/control/info.md), [Map](https://ref.dm-lang.org/skin/control/map.md)`
- ``false` for everything else`


True if dragged objects may be dropped here. Default is true for Map, Info, and Grid controls, false for others. When in use, this will be the value of the `over_control` argument in [MouseDrop()](https://ref.dm-lang.org/client/proc/MouseDrop.md) if you drop an atom here.

Grids can also add `drag-cell` and `drop-cell` to mouse proc parameters. The mouse procs' `src_location` and `over_location` arguments are in the form `"[column],[row]"` (or `"[item"]` if [is-list](https://ref.dm-lang.org/skin/param/is-list.md) is true) when dragging to/from a grid cell.

In Info controls, `src_location` and `over_location` in mouse procs will be the name of the statpanel tab.

### See also
> [mouse handling](https://ref.dm-lang.org/DM/mouse/index.md)