On 25/01/2019 05:16, Black Michael via wsjt-devel wrote:
I don't see anything in there about serialization...but here's a
thread which shows some examples and says "don't do it" referring to
pass by reference.
https://stackoverflow.com/questions/8455887/stack-object-qt-signal-and-parameter-as-reference
Mike
Mike,
eh? Where in that linked stackoverfow item does it say that there is a
problem with passing signal arguments by reference? Are you confusing
C++references and pointers? Seems to me that it is saying exactly what I
have, it is no problem because either arguments are passed in a function
call or they are serialized using the Qt metatype system to find the
correct serialization code if the connection is queued or across a
thread boundary. BTW if the argument types are not all sterilizable then
the code will not compile if the signal is queued.
Again, you need to read and understand the Qt signal and slot mechanism
and the related metatype system.
73
Bill
G4WJS.
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