using libusb header file
<p>I need to communicate with USB port by C++. so I searched the web and found a comppresd (.rar) file. Its name is <code>usblib-1.0.9.tar.bz2</code>. I extracted it and it contains several files and folders and some of them are header files (*.h). I think my necessary file is one of them that its name is <code>libusb.h</code>. </p>

<p>Moreover in this comppresed file there are some example programs to communicate via USB. I copied one of them to a C++ empty program for testing. This program uses libusb header file as one of library. </p>

<p>I added libusb.h to this program (right click on Header Files in solution explorer and choose <code>add &gt; existing item</code> then browse <code>libusb.h</code>), but this library (<code>libusb.h</code>) is still unspecified (<code>#include &lt;libusb.h&gt;</code> is unspecified ) and I can't debug this example program. Do I need to do another action to add this new library (<code>libusb.h</code>) to use in this program?</p>
