Flash CS4 Professional.
fl.swfPanels
Read-only property; an array of registered swfPanel objects (see swfPanel object). A swfPanel object is registered if it has been opened at least once.
A panel’s position in the array represents the order in which it was opened. If the first panel opened is named TraceBitmap and the second panel opened is named AnotherFunction, then fl.swfPanels[0] is the TraceBitmap swfPanel object, fl.swfPanels[1] is the AnotherFunction swfPanel object, and so on.
This property is undefined if none of panels have been opened (this behavior is new in Adobe Animate).
The following code displays the name and path of any registered Window SWF panels in the Output panel:
if(fl.swfPanels.length > 0){
for(x = 0; x < fl.swfPanels.length; x++){
fl.trace("Panel: " + fl.swfPanels[x].name + " -- Path: " + fl.swfPanels[x].path);
}
}