Run when the button is double-clicked. Run if the mouse button is clicked twice within 0.3 seconds. (The PreClick, OnClick, and PostClick handlers are run for the first click but not the second.)
Signature:
Code
OnDoubleClick(self, "button")
Arguments:
self - Reference to the widget for which the script was run (button)
button - Name of the mouse button responsible for the click action (string)
