Re-implement consoleUIA._getTextLines using UIATextPattern.GetVisible…

…Ranges. This may improve performance when large amounts of text are written to the console, but possibly at the cost of less reliable autoread (particularly when the screen is refreshed or scrolled).

source/NVDAObjects/UIA/ConsoleUIA.py

@@ -59,4 +59,6 @@ def script_clear_isTyping(self, gesture):
 	def _getTextLines(self):
 		# Filter out extraneous empty lines from UIA
 		# Todo: do this (also) somewhere else so they aren't in document review either
-		return self.makeTextInfo(textInfos.POSITION_ALL).text.strip().split("\r\n")
+		ptr = self.UIATextPattern.GetVisibleRanges()
+		res = [ptr.GetElement(i).GetText(-1) for i in range(ptr.length)]
+		return res