title: QLibrary does not load
body: <p>I'm trying to write a simple example of loading a dll file, and the load fails.
  I'm using qt 5.1.1 qt creator 3.0.1. 
  my compiler is: Microsoft Visual C++ Compiler 11.0 (amd64)</p>
  
  <p>the pro file:</p>
  
  <pre><code>QT       += core
  
  TARGET = rrrr
  
  SOURCES += main.cpp
  </code></pre>
  
  <p>the main file is:</p>
  
  <pre><code>#include &lt;QLibrary&gt;
  
  int main()
  {
  
      bool is;
      QLibrary lib("C:\\A.dll");
      is = lib.load();
      is = lib.isLoaded();
  
      return 0;
  }
  </code></pre>
  
  <p>The A.dll file of-course exists inside C.
  I get the value false for the variable "is" while debbuging.</p>