Called when clicked with left/middle/right button
This function is meant to be overriden.
Between onBeginDrag and onStopDrag, isDragged will return true.
Note: When a widget is dragged, and "futureMouseDrag" version identifier is used,
then a dragged widget is always also isMouseOver.
Called when clicked with left/middle/right button This function is meant to be overriden. Between onBeginDrag and onStopDrag, isDragged will return true.
Note: When a widget is dragged, and "futureMouseDrag" version identifier is used, then a dragged widget is always also isMouseOver.