title: Qt doesn't find windows.h
body: <p>I'm running a simple program with Qt5, QtCreator under windows 7+msvc2010 with SDK7 installed. I have to call specific Windows functions in this program.</p>
  
  <p>If I try to compile it, I always get: </p>
  
  <blockquote>
    <p>error: C1083: Cannot open include file: 'Windows.h': No such file or directory.</p>
  </blockquote>
  
  <p>Of course, I set "normally" the dev. kit in QtCreator (Microsoft Visual C++ Compiler 10.0), and I try to run vcvars32.bat before. It still is not working.</p>
  
  <p>Another point: Why when while compiling, do I not see any include (-I...) related to the Windows SDK?</p>
  
  <p>Where is my mistake?</p>