No such signal when porting from Qt4.8 to Qt5.5

[d_stranz]

VuePalette:: paletteModifiee

And are you certain that your VuePalette class speaks French? Or should the signal be this?

VuePalette:: paletteModified

Otherwise, if the spellings are correct for the name of the signal and types of all the arguments (and you have the correct number of arguments), I do not see anything wrong with the code you have posted. This same code is valid for both Qt4 and Qt5.

By the way, changing to Qt5 connect syntax would give you a compile-time error which would let you fix the error without the need to run the program and examine the debug output.

[ChrisW67]

Are you certain that the VuePalette header file is listed in HEADERS and that qmake has run moc over it?

[adelaune]

Thanks for your replies.

I believe I've found what the problem is : in the "connect" statement, "Pointeur" is a QSharedPointer, so "LUT" and "Fonction" classes need to inherit from QObject and to contain the Q_OBJECT macro.

Sorry, I didn't find it before, but if it can help someone it would be worth it .