signal callback delegate or function to connect
panel.frame.Frame callback(panel.position.Position position, panel.dock.Dock dock)
position the position for the frame (optional)
dock the instance the signal is connected to (optional)
Returns a #PanelFrame
Yes.After to execute callback after default handler, No.After to execute before (default)
Signal ID
Connect to CreateFrame signal.
This signal is emitted when a new frame is needed.