title: C# copy paste an image region into another image
body: <p>I am trying to write an utility class that permits automatic resizing of images that are tilebale. Let's say there is a srcBitmap from where I copy a region given by a Rectangle srcRegion. I then want to paste (pixel information wise) that region into another image called Bitmap destBitmap, in a destination region Rectangle destRegion.
  I know how to get the region from the source and put it into a Bitmap object, but I haven't yet been able to find how to actually paste a Bitmap object in a certain region, inside another, bigger Bitmap object.</p>
  
  <p>Is there a quick way to do this? (without GDI and without delving into the byte array of the Bitmaps). Here is the snippet that should clarify my goal</p>
  
  <pre><code>    private static void CopyRegionIntoImage(Bitmap srcBitmap, Rectangle srcRegion, Bitmap destBitmap, Rectangle destRegion)
      {
          // get the required region from the destination
          Bitmap region = Copy(srcBitmap, srcRegion);
      }
  </code></pre>