_UIAHandler.UIAHandler.isUIAWindow: normalize the window class name before checking for it in badUIAWindowClassList. Also add all the possible RichEdit window classes to badUIAWindowClassList so that UIA is no longer used for them. Windows 8 introduces UIA support for RichEdit which is wonderful, but for now causes some problems in NVDA -- more our fault than Microsofts. For now we disable support and fall back to our older win32 RichEdit window message code. this will also allow the poedit appModule to work on Windows 8. It also stops double selection announcement in RichEdit documents in Windows 8

michaelDCurran · michaelDCurran · commit d5a3383bb215 · 2011-12-01T13:02:53.000+10:00
diff --git a/source/_UIAHandler.py b/source/_UIAHandler.py
@@ -27,6 +27,9 @@
 	"CommonPlacesWrapperWndClass",
 	"SysMonthCal32",
 	"SUPERGRID", #Outlook 2010 message list
+	"RichEdit",
+	"RichEdit20",
+	"RICHEDIT50W",
 ]
 
 UIAControlTypesToNVDARoles={
@@ -202,9 +205,10 @@ def isUIAWindow(self,hwnd):
 		now=time.time()
 		v=self.UIAWindowHandleCache.get(hwnd,None)
 		if not v or (now-v[1])>0.5:
+			import NVDAObjects.window
 			if windll.kernel32.GetCurrentProcessId()==winUser.getWindowThreadProcessID(hwnd)[0]:
 				isUIA=False
-			elif winUser.getClassName(hwnd) in badUIAWindowClassNames:
+			elif NVDAObjects.window.Window.normalizeWindowClassName(winUser.getClassName(hwnd)) in badUIAWindowClassNames:
 				isUIA=False
 			else:
 				isUIA=windll.UIAutomationCore.UiaHasServerSideProvider(hwnd)
