Hi All,

Below is my usecase:

1.) I have a Window Tracking Library on MAC written using Cocoa framework, with XCode 3.1.

2.) I have a QT application compiled on same MAC.

I want to use the DYLIB generated in 1 in Qt application. I am able to compile it successfully without any issues and also able to instantiate the WindowTracker object.

However, the application crashes when I am trying to use the methods defined in the library ?

I would like to know if there are any known issues with such usage, if its possible and any alternatives ?

I have tried compiling Qt with Cocoa and now strangely my application throws an exception at start itself:

Qt Code: 
  1. *** Terminating app due to uncaught exception 'NSArchiverArchiveInconsistency', reason: '*** -[NSKeyedUnarchiver decodeObjectForKey:]: missing class information for object'
  2. *** Call stack at first throw:
  3. (
  4. 	0   CoreFoundation                      0x00007fff8741ad24 __exceptionPreprocess + 180
  5. 	1   libobjc.A.dylib                     0x00007fff841960f3 objc_exception_throw + 45
  6. 	2   CoreFoundation                      0x00007fff8741ab47 +[NSException raise:format:arguments:] + 103
  7. 	3   CoreFoundation                      0x00007fff8741aad4 +[NSException raise:format:] + 148
  8. 	4   Foundation                          0x00007fff852683c4 _decodeObjectBinary + 665
  9. 	5   Foundation                          0x00007fff85267f99 _decodeObject + 208
  10. 	6   AppKit                              0x00007fff8485340d loadNib + 146
  11. 	7   AppKit                              0x00007fff84852b70 +[NSBundle(NSNibLoading) _loadNibFile:nameTable:withZone:ownerBundle:] + 763
  12. 	8   AppKit                              0x00007fff848527a5 +[NSBundle(NSNibLoading) loadNibNamed:owner:] + 326
  13. 	9   QtGui                               0x00000001002cd699 _Z7qt_initP19QApplicationPrivatei + 2249
  14. 	10  QtGui                               0x00000001003373dd _ZN19QApplicationPrivate9constructEv + 77
  15. 	11  QtGui                               0x0000000100337846 _ZN12QApplicationC2ERiPPci + 102
  16. 	12  myApp                              0x000000010000f932 main + 66
  17. 	13  myApp                              0x000000010000ea36 _start + 224
  18. 	14  myApp                              0x000000010000e955 start + 33
  19. 	15  ???                                 0x0000000000000001 0x0 + 1
  20. )
  21. terminate called after throwing an instance of 'NSException'
  22. Abort trap
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Any ideas or help on how to get my application working will be greatly appreciated.

The APIs that I have mainly used in my Library are:

1.) CGWindow.h
2.) CGDirectDisplay.h


Thanks,
Raja.