title: Graphics32: Pan with mouse-drag, zoom to mouse cursor with mouse wheel
body: <p>I need to implement a pan as I click and drag the mouse, and zoom/unzoom towards/away from the mouse cursor that uses the mouse wheel. (In Delphi 2010, with the image anchored to left,right,top,bottom the form.)</p>
  
  <p>I've just installed Graphics32 and seen how its built-in scroll bars and .Scale allow some of this. It's tantalizingly easy to at least get that far.</p>
  
  <p>Questions:</p>
  
  <p>Is Graphics32 a good tool for this kind of thing? Are there other (perhaps more simple?) tools that I might look into?</p>
  
  <p>Does anyone have any pointers or sample code on how to implement the above?</p>
  
  <p>Thanks.</p>