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@jhbush
Forked from pudquick/loginwindow_events.py
Created May 26, 2016 00:24
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Send polite Logout / "really" Logout / Restart / Shutdown Apple Events to loginwindow via python and pyObjC
import struct, objc
from Foundation import NSBundle
from Cocoa import NSAppleEventDescriptor
def OSType(s):
# Convert 4 character code into 4 byte integer
return struct.unpack('>I', s)[0]
# Create an opaque pointer type to mask the raw AEDesc pointers we'll throw around
AEDescRef = objc.createOpaquePointerType('AEDescRef', '^{AEDesc=I^^{OpaqueAEDataStorageType}}')
# Load AESendMessage from AE.framework for sending the AppleEvent
AE_bundle = NSBundle.bundleWithIdentifier_('com.apple.AE')
functions = [("AESendMessage", b"i^{AEDesc=I^^{OpaqueAEDataStorageType}}^{AEDesc=I^^{OpaqueAEDataStorageType}}iq"),]
objc.loadBundleFunctions(AE_bundle, globals(), functions)
# defined in AEDataModel.h
kAENoReply = 1
kAENeverInteract = 16
kAEDefaultTimeout = -1
kAnyTransactionID = 0
kAutoGenerateReturnID = -1
# defined in AEDataModel.h
typeAppleEvent = OSType('aevt')
typeApplicationBundleID = OSType('bund')
# defined in AERegistry.h
kAELogOut = OSType('logo')
kAEReallyLogOut = OSType('rlgo')
kAEShowRestartDialog = OSType('rrst')
kAEShowShutdownDialog = OSType('rsdn')
# Build a standalone application descriptor by bundle id
loginwindowDesc = NSAppleEventDescriptor.alloc().initWithDescriptorType_data_(typeApplicationBundleID, buffer('com.apple.loginwindow'))
# build an event descriptor with our app descriptor as the target and the kAELogOut eventID
event = NSAppleEventDescriptor.appleEventWithEventClass_eventID_targetDescriptor_returnID_transactionID_(
typeAppleEvent, kAELogOut, loginwindowDesc, kAutoGenerateReturnID, kAnyTransactionID)
eventDesc = event.aeDesc()
# Send a polite logout (returns immediately)
err = AESendMessage(eventDesc, None, kAENoReply|kAENeverInteract, kAEDefaultTimeout)
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