On Wednesday 30 September 2009 19:54, Den Jean wrote: > > And I must tell you that some strange ide crashes (linux with pretty old > > Xorg 6.8.2) which happens before 1.72 just dissapeared with new hooks > > > :-[ as already mentioned on the LCL/Qt ML I also fixed a bug (since V1.71) > > The type safe calling should not change anything to existing correct code. > It just verifies at compile time that the signature of the provided Pascal > Method is of the correct type. > > Hooking a signal of a Qt Object X to a Pascal Object Method, works by > creating a hooking object HOOK written in Qt/C++, that stores the address > of the Pascal Object Method and the address/handle of the Qt Object X. > > The HOOK connects to the signal of X and calls the Pascal method when the > signal occurs. > > In the destructor of the hook, I disconnected from the Qt Object X. But in > the mean time the stored handle to X could have become invalid, if the Qt > Object X had been destroyed. > > Now the HOOK also connects to the destroyed signal of X, and invalidates > the handle to it, upon reception of that destroyed signal. > > > (yes, I can > > reproduce that each time before 1.72 , now I cannot - so it seem to be > > nice thing with new signal hooking) :)))) > > If you can reproduce it easily, you could enable the debugging printfs I > left in qobject_hook.h and verify it is related to this bug fix. > http://lists.lazarus.freepascal.org/pipermail/qt/2009-September/001272.html
I think it is .... but now I cannot revert to older bindings ... no time for such tests .... new hooks done it's job definitelly. -- _______________________________________________ Lazarus mailing list [email protected] http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
