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Click and hold the left mouse button (at the coordinates set by the last moveTo command). Note that the next mouse-related command that should follow is mouseButtonUp . Any other mouse command (such as click or another call to buttondown) will yield undefined behaviour.
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.
Usage
Parameters
| Name | Type | description |
|---|---|---|
button |
string | number | The mouse button |
callbackOptional |
function | Optional callback function to be called when the command finishes. |