diff options
Diffstat (limited to 'Lib/plat-mac/aetools.py')
| -rw-r--r-- | Lib/plat-mac/aetools.py | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/Lib/plat-mac/aetools.py b/Lib/plat-mac/aetools.py index 0639541..9111d50 100644 --- a/Lib/plat-mac/aetools.py +++ b/Lib/plat-mac/aetools.py @@ -23,6 +23,7 @@ files: the pack stuff from aepack, the objects from aetypes. from types import * from Carbon import AE +from Carbon import Evt from Carbon import AppleEvents import MacOS import sys @@ -144,6 +145,16 @@ class TalkTo: _signature = None # Can be overridden by subclasses _moduleName = None # Can be overridden by subclasses + __eventloop_initialized = 0 + def __ensure_WMAvailable(klass): + if klass.__eventloop_initialized: return 1 + if not MacOS.WMAvailable(): return 0 + # Workaround for a but in MacOSX 10.2: we must have an event + # loop before we can call AESend. + Evt.WaitNextEvent(0,0) + return 1 + __ensure_WMAvailable = classmethod(__ensure_WMAvailable) + def __init__(self, signature=None, start=0, timeout=0): """Create a communication channel with a particular application. @@ -201,7 +212,8 @@ class TalkTo: def sendevent(self, event): """Send a pre-created appleevent, await the reply and unpack it""" - + if not self.__ensure_WMAvailable(): + raise RuntimeError, "No window manager access, cannot send AppleEvent" reply = event.AESend(self.send_flags, self.send_priority, self.send_timeout) parameters, attributes = unpackevent(reply, self._moduleName) |