Reverse engineering and debugging reveals several key exports within PanoCommandDLL :
This DLL acts as a or driver for serial communication. It simplifies the process of sending control signals to a PTZ camera. Instead of a developer manually calculating checksums and building hex strings (e.g., FF 01 00 4B 00 00 AB ), they call a function from this DLL (e.g., MoveLeft(CameraID) ). panocommanddll