Which button triggered the event, in string form.

Position of the cursor relative to the panel's top left corner at the time the event was triggered.

Click count supplied by the input source for this mouse-down event. Defaults to one.

Whether Alt was held down at the time of the event.

Whether Control was held down at the time of the event.

Whether Shift was held down at the time of the event.

The modifier keys held down when this happened - so a click can tell shift+click from a plain one.

Which button triggered the event, as a Sandbox.MouseButtons enum.