title: Windows Forms: capturing MouseWheel
body: <p>I have a Windows Form (working in C#.NET).</p>
  
  <p>The form has a couple of panels top-side and some ComboBoxes and DataGridViews bottom-side.</p>
  
  <p>I want to use the scroll events on the top-side panels, but if selecting a e.g. ComboBox the focus is lost. The panels contain various other controls.</p>
  
  <p>How could I always receive the mouse wheel events when the mouse is over any of the panels ?
  So far I tried to use the MouseEnter / MouseEnter events but with no luck.</p>