title: Fade an image using GDI+ (i.e. Change only the Alpha channel of a TGPGraphic)
body: <p>I need to fade the right side of an image using GDI+. I'm actually trying to emulate the right hand side text fade that you see in Google Chrome. Here's what I want to do.</p>
  
  <ul>
  <li>Create a <strong>TGPGraphics</strong> object from a <strong>TBitmap</strong>.</li>
  <li>Create a <strong>TGPBitmap</strong> from a region of the <strong>TBitmap</strong>.</li>
  <li>Paint the background of the <strong>TGPGraphics</strong> object and the text to the <strong>TGPBitmap</strong>.</li>
  <li>Change the Alpha settings on the right hand side of the <strong>TGPBitmap</strong> object to produce the fade effect.</li>
  <li>Draw the <strong>TGPBitmap</strong> back to the <strong>TGPGraphics</strong> object.</li>
  </ul>