title: Detect drag and drop operations in an external application using .Net
body: <p>I need to detect drag and drop operations in an <strong>external application</strong>, is it possible? I thought of writing a hook to detect these operations. Can anybody point  me in the right direction as far as which messages or api functions I could  attempt to hook to detect the Drag &amp; Drop events? I want to do this in C#.</p>
  
  <p>Thanks in advance.</p>