Persist state of maximized with a global variable.

source/NVDAObjects/UIA/winConsoleUIA.py

@@ -6,6 +6,7 @@
 
 import config
 import ctypes
+import globalVars
 import NVDAHelper
 import speech
 import time
@@ -238,9 +239,6 @@ class WinConsoleUIA(Terminal):
 	_hasNewLines = False
 	#: the caret in consoles can take a while to move on Windows 10 1903 and later.
 	_caretMovementTimeoutMultiplier = 1.5
-	#: Stores whether this console has ever been maximized
-	# (maximization breaks GetVisibleRanges).
-	_maximized = False
 
 	def _reportNewText(self, line):
 		# Additional typed character filtering beyond that in LiveText
@@ -294,10 +292,15 @@ def script_flush_queuedChars(self, gesture):
 		speech.curWordChars = []
 
 	def _get_maximized(self):
-		res = self.parent.UIAWindowPattern.CurrentWindowVisualState == UIAHandler.WindowVisualState_Maximized
-		if res:
-			self._maximized = True
-		return self._maximized or res
+		res = self.UIAElement.getRuntimeId() in globalVars.maximizedUIAConsoles
+		if (
+			self.parent.UIAWindowPattern.CurrentWindowVisualState
+			== UIAHandler.WindowVisualState_Maximized
+			and not res
+		):
+			globalVars.maximizedUIAConsoles.append(self.UIAElement.getRuntimeId())
+			return True
+		return res
 
 	def _getTextLines(self):
 		# Filter out extraneous empty lines from UIA

source/globalVars.py

@@ -18,6 +18,7 @@
 @type navigatorObject: L{NVDAObjects.NVDAObject}
 @var navigatorTracksFocus: if true, the navigator object will follow the focus as it changes
 @type navigatorTracksFocus: boolean
+@var maximizedUIAConsoles: stores state for maximized consoles, see #9899
 """
 
 startTime=0
@@ -38,3 +39,4 @@
 settingsRing = None
 speechDictionaryProcessing=True
 exitCode=0
+maximizedUIAConsoles = []