def disconnectConsole():
global consoleObject, consoleOutputHandle, consoleWinEventHookHandles, checkDeadTimer
if not consoleObject:
log.debugWarning("console was not connected")
return False
checkDeadTimer.Stop()
checkDeadTimer = None
#Unregister any win events we are using
for handle in consoleWinEventHookHandles:
winUser.unhookWinEvent(handle)
consoleEventHookHandles = []
consoleObject.stopMonitoring()
winKernel.closeHandle(consoleOutputHandle)
consoleOutputHandle = None
consoleObject = None
try:
wincon.SetConsoleCtrlHandler(_consoleCtrlHandler, False)
except WindowsError:
pass
#Try freeing NVDA from this console
try:
wincon.FreeConsole()
except WindowsError:
pass
return True
def connectConsole(obj):
global consoleObject, consoleOutputHandle, checkDeadTimer
#Get the process ID of the console this NVDAObject is fore
processID, threadID = winUser.getWindowThreadProcessID(obj.windowHandle)
#Attach NVDA to this console so we can access its text etc
try:
wincon.AttachConsole(processID)
except WindowsError as e:
log.debugWarning("Could not attach console: %r" % e)
return False
wincon.SetConsoleCtrlHandler(_consoleCtrlHandler, True)
consoleOutputHandle = winKernel.CreateFile(
u"CONOUT$", winKernel.GENERIC_READ | winKernel.GENERIC_WRITE,
winKernel.FILE_SHARE_READ | winKernel.FILE_SHARE_WRITE, None,
winKernel.OPEN_EXISTING, 0, None)
#Register this callback with all the win events we need, storing the given handles for removal later
for eventID in (winUser.EVENT_CONSOLE_CARET,
winUser.EVENT_CONSOLE_UPDATE_REGION,
winUser.EVENT_CONSOLE_UPDATE_SIMPLE,
winUser.EVENT_CONSOLE_UPDATE_SCROLL,
winUser.EVENT_CONSOLE_LAYOUT):
handle = winUser.setWinEventHook(eventID, eventID, 0,
consoleWinEventHook, 0, 0, 0)
if not handle:
raise OSError("could not register eventID %s" % eventID)
consoleWinEventHookHandles.append(handle)
consoleObject = obj
checkDeadTimer = gui.NonReEntrantTimer(_checkDead)
checkDeadTimer.Start(CHECK_DEAD_INTERVAL)
return True
