Question

I’m trying to use QObject::connect() with enum parameters. I got this message…

QObject::connect: Incompatible sender/receiver arguments
        Calendar::calendarExceptionThrown(Calendar*,ExceptionType)
   --> CalendarDBView::handleCalendarException(Calendar*,Calendar::ExceptionType)

The connect code is:

 connect(cal, SIGNAL(calendarExceptionThrown(Calendar*,ExceptionType)),
         this, SLOT(handleCalendarException(Calendar*,Calendar::ExceptionType)));

From what I’ve read, I figured I needed to add this to the class definition of Calendar:

Q_ENUMS(ExceptionType)

I added this to main.cpp:

qRegisterMetaType<Calendar::ExceptionType>("ExceptionType");

I’m still getting the warning message. This related thread didn’t solve my issue. What am I doing wrong?

Answer 1

I believe if you simply change ExceptionType to Calendar::ExceptionType in the SIGNAL part of your connect, it will fix the problem. moc expects the strings for both the SIGNAL and SLOT to match.