title: OpenGL : How to use glMapBuffer with Qt?
body: <p>I'm trying to use glMapBuffer with a QOpenGLWidget but I can't find it. Here are my included files: </p>
  
  <pre><code>#include &lt;QOpenGLWidget&gt;
  #include &lt;QOpenGLFunctions&gt;
  #include &lt;QOpenGLBuffer&gt;
  #include &lt;QDebug&gt;
  #include &lt;QOpenGLTexture&gt;
  #include &lt;GL/gl.h&gt;
  #include &lt;GL/glext.h&gt;
  #include &lt;QGLFunctions&gt;
  #include &lt;QOpenGLShader&gt;
  #include &lt;QOpenGLShaderProgram&gt;
  </code></pre>