title: FLTK picture not showing
body: <p>I can't put any pictures to my FLTK project:</p>
  <pre><code>#include &lt;FL/Fl.h&gt;
  #include &lt;FL/Fl_Box.h&gt;
  #include &lt;FL/Fl_Window.h&gt;
  #include &lt;FL/Fl_Button.H&gt;
  #include &lt;FL/FL_JPEG_Image.H&gt;
  
  Fl_Box* mypicturebox;
  Fl_JPEG_Image* myimage;
  
  using namespace std;
  
  int main()
  {
     Fl_Window window(700, 600, &quot;collection&quot;);
     Fl_Button *button1=new Fl_Button(0 ,0 ,100, 50, &quot;open&quot;);
      button1-&gt;labelfont(FL_BOLD + FL_ITALIC);
     Fl_Button button2(270, 400, 120, 50, &quot;previous image&quot;);
     Fl_Button button3(400, 400, 120, 50, &quot;next image&quot;);
     Fl_Button button4(600, 0, 100, 50, &quot;close&quot;);
     Fl_JPEG_Image *myimage = new Fl_JPEG_Image(&quot;nicepic.jpg&quot;);
     mypicturebox = new Fl_Box(20, 20, 100, 100);
     mypicturebox-&gt;image(myimage);
     mypicturebox-&gt;redraw();
     window.show();
     return Fl::run();
  }
  </code></pre>