未解决的外部错误- Visual c++使用FTD2XX.h

I am fairly new to C++ programming, so please bear with me. I am writing a small application in visual studio that would be used to communicate with an FTDI module (UM232H high speed USB module). FTDI provides the D2XX drivers for this module and is readily available on their website. Right now the program I have is very simple. It is calling a function called FT_Open (ftd2xx.h) to simply open the device and top check to see if the device is connected to the computer. I am fairly new to C++ programming, so please b