Top-Level Functions and Methods function mouseDoubleClick() { fl.trace("Mouse was double-clicked"); } 20 mouseDown() Availability Flash MX 2004. Usage function mouseDown( [ pt ] ) { // statements } Parameters pt--A point that specifies the location of the mouse when the button is pressed. It is passed to the function when the mouse button is pressed. This parameter is optional. Returns Nothing. Description Function; called when the extensible tool is active and the mouse button is pressed while the pointer is over the Stage. Example