Re: unexpected error

Le Wed, 8 Oct 2014 08:56:29 -0500,
Ken Thomases <[email protected]> a écrit :

> On Oct 8, 2014, at 5:48 AM, Eric Le Lay
> <[email protected]> wrote:
> 
> >        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)
> 
> Why are you not doing what the docs for CGEventTapCreate() suggest:
> pass the CFMachPortRef returned from it to
> CFMachPortCreateRunLoopSource() and then add the resulting source to
> the run loop using CFRunLoopAddSource()?
> 

Ken,
thank you for your answer.

The actual code is part of a gtk application.
It used to do as you suggest:

  tap = Quartz.CGEventTapCreate(...)
  runLoopSource = Quartz.CFMachPortCreateRunLoopSource(None, tap, 0)
  Quartz.CFRunLoopAddSource(
    Quartz.CFRunLoopGetCurrent(),
    runLoopSource,
    Quartz.kCFRunLoopDefaultMode
  )
  Quartz.CGEventTapEnable(tap, True)

The event was not processed until the main window got focus and then
the eventtap was disabled because it had not answered in time.
I stumbled upon the macrumors post about the same problem and
tried that code. It seemed to make sense and did work in objective-c
so I thought it would work just as well in python.

Now, the objective-c has the same problem + can't close the main
window or it freezes the computer. I can live with the event not being
delivered until the main window shows up. I then re-enable the
tap as I receive the disabled event.

Thanks again for your time,
Eric

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