Use stream position instead of counting read bytes.

tonyroberts · tonyroberts · commit 88b3d278803f · 2016-04-04T18:50:59.000+01:00
FileStream.Read returns (bytes read, buffer), not just bytes read as the
buffer is passed by reference. This is a bit unintuative, but checking the
position is clear and less error prone.
diff --git a/demo/wordpad.py b/demo/wordpad.py
@@ -316,11 +316,10 @@ def OpenDocument(self):
 
         buff = System.Array.CreateInstance(System.Byte, 1024)
         data = []
-        read = -1
 
-        while (read != 0):
+        while stream.Position < stream.Length:
             buff.Initialize()
-            read = stream.Read(buff, 0, 1024)
+            stream.Read(buff, 0, 1024)
             temp = Encoding.ASCII.GetString(buff, 0, 1024)
             data.append(temp)
 
