Releases the mouse button previously held (where the mouse is currently at). Must be called once for every mouseButtonDown command issued.

Can be used for implementing drag-and-drop. The button can be (0, 1, 2) or ('left', 'middle', 'right'). It defaults to left mouse button, and if you don't pass in a button but do pass in a callback, it will handle it correctly.

  • Since v2.0, this command is deprecated. It is only available on older JSONWire-based drivers. Please use the new User Actions API.



Name Type description
button string|number

The mouse button


Optional callback function to be called when the command finishes.