Constructs a new C0DPacketCloseWindow object with the specified windowId. windowId is an integer representing the ID of the window that is being closed.
getWindowId(): int
Returns the window ID associated with this packet. The window ID is an integer value identifying the window that is being closed.
setWindowId(int windowId): void
Sets the window ID for this packet. The window ID is an integer value identifying the window that is being closed.