 <p>Here is something similar with good code example.</p> <p>// Set cursor as hourglass Cursor.Current = Cursors.WaitCursor;</p> <p>// Execute your time-intensive hashing code here...</p> <p>// Set cursor as default arrow Cursor.Current = Cursors.Default;</p> <p><a href="http://stackoverflow.com/questions/1568557/how-can-i-make-the-cursor-turn-to-the-wait-cursor">How can I make the cursor turn to the wait cursor?</a></p>