Hello list,
I've encountered a problem when trying to register and event tap:
The error occurs when calling loop.addPort_forMode_(port, NSDefaultRunLoopMode)
in test_app.py, included below.
Can someone see what I'm doing wrong?
My code is an adaptation of the first response in
http://forums.macrumors.com/showthread.php?t=1145465
The objective-c version does work.
Thanks,
Eric
________________ test_app.py ___________________________
#Traceback (most recent call last):
# File "/Users/elelay/Desktop/test_app.py", line 35, in <module>
# eventTap.runEventsCapture()
# File "/Users/elelay/Desktop/test_app.py", line 30, in runEventsCapture
# loop.addPort_forMode_(port, NSDefaultRunLoopMode)
# ValueError: NSInvalidArgumentException - *** -scheduleInRunLoop:forMode: cannot be sent to an abstract object of class NSMachPort: Create a concrete instance!
#
from AppKit import NSSystemDefined, NSApp
import Quartz
from CoreFoundation import CFMachPortGetPort
from Foundation import NSMachPortDeallocateNone, \
NSRunLoop, NSDefaultRunLoopMode, \
NSMachPort
class MacKeyEventsTap(object):
def __init__(self):
pass
def eventTap(self, proxy, type_, event, refcon):
print("eventTap()")
return event
def runEventsCapture(self):
tap = Quartz.CGEventTapCreate(
Quartz.kCGSessionEventTap,
Quartz.kCGHeadInsertEventTap,
Quartz.kCGEventTapOptionDefault,
# NSSystemDefined for media keys
Quartz.CGEventMaskBit(NSSystemDefined),
self.eventTap,
None
)
port = NSMachPort.alloc().initWithMachPort_options_(CFMachPortGetPort(tap), NSMachPortDeallocateNone)
loop = NSRunLoop.currentRunLoop()
loop.addPort_forMode_(port, NSDefaultRunLoopMode)
NSApp.run()
if __name__ == '__main__':
eventTap = MacKeyEventsTap()
eventTap.runEventsCapture()
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